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authoriximeow <me@iximeow.net>2021-07-04 12:55:21 -0700
committeriximeow <me@iximeow.net>2021-07-04 12:55:21 -0700
commit2c84821ee0d9807d20ea82b8550edde09426a867 (patch)
treefa178ef6cb0bbd108e1c36b30dbb150b81bfe6fa /src/real_mode/mod.rs
parent2a3b81c024c28f1676046918c2ceecee8fe7777d (diff)
add real-mode decoder
Diffstat (limited to 'src/real_mode/mod.rs')
-rw-r--r--src/real_mode/mod.rs10677
1 files changed, 10676 insertions, 1 deletions
diff --git a/src/real_mode/mod.rs b/src/real_mode/mod.rs
index de7ec27..8376230 100644
--- a/src/real_mode/mod.rs
+++ b/src/real_mode/mod.rs
@@ -1 +1,10676 @@
-pub struct Arch {}
+mod vex;
+mod evex;
+#[cfg(feature = "fmt")]
+mod display;
+pub mod uarch;
+
+pub use MemoryAccessSize;
+
+#[cfg(feature = "fmt")]
+pub use self::display::DisplayStyle;
+
+use core::cmp::PartialEq;
+use core::hint::unreachable_unchecked;
+
+use yaxpeax_arch::{AddressDiff, Decoder, Reader, LengthedInstruction};
+use yaxpeax_arch::{DecodeError as ArchDecodeError};
+
+use core::fmt;
+impl fmt::Display for DecodeError {
+ fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+ f.write_str(self.description())
+ }
+}
+
+/// an `x86` register, including its number and type. if `fmt` is enabled, name too.
+///
+/// ```
+/// use yaxpeax_x86::long_mode::{RegSpec, register_class};
+///
+/// assert_eq!(RegSpec::ecx().num(), 1);
+/// assert_eq!(RegSpec::ecx().class(), register_class::D);
+/// ```
+///
+/// some registers have classes of their own, and only one member: `eip` and `eflags`.
+#[cfg_attr(feature="use-serde", derive(Serialize, Deserialize))]
+#[derive(Copy, Clone, Debug, PartialOrd, Ord, Eq, PartialEq)]
+pub struct RegSpec {
+ num: u8,
+ bank: RegisterBank
+}
+
+use core::hash::Hash;
+use core::hash::Hasher;
+impl Hash for RegSpec {
+ fn hash<H: Hasher>(&self, state: &mut H) {
+ let code = ((self.bank as u16) << 8) | (self.num as u16);
+ code.hash(state);
+ }
+}
+
+/// the condition for a conditional instruction.
+///
+/// these are only obtained through [`Opcode::condition()`]:
+/// ```
+/// use yaxpeax_x86::long_mode::{Opcode, ConditionCode};
+///
+/// assert_eq!(Opcode::JB.condition(), Some(ConditionCode::B));
+/// ```
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub enum ConditionCode {
+ O,
+ NO,
+ B,
+ AE,
+ Z,
+ NZ,
+ A,
+ BE,
+ S,
+ NS,
+ P,
+ NP,
+ L,
+ GE,
+ G,
+ LE,
+}
+
+#[allow(non_snake_case)]
+impl RegSpec {
+ /// the register `eip`. this register is in the class `eip`, which contains only it.
+ pub const EIP: RegSpec = RegSpec::eip();
+
+ /// the number of this register in its `RegisterClass`.
+ ///
+ /// for many registers this is a number in the name, but for registers harkening back to
+ /// `x86_32`, the first eight registers are `rax`, `rcx`, `rdx`, `rbx`, `rsp`, `rbp`, `rsi`,
+ /// and `rdi` (or `eXX` for the 32-bit forms, `XX` for 16-bit forms).
+ pub fn num(&self) -> u8 {
+ self.num
+ }
+
+ /// the class of register this register is in.
+ ///
+ /// this corresponds to the register's size, but is by the register's usage in the instruction
+ /// set; `rax` and `mm0` are the same size, but different classes (`Q`(word) and `MM` (mmx)
+ /// respectively).
+ pub fn class(&self) -> RegisterClass {
+ RegisterClass { kind: self.bank }
+ }
+
+ #[cfg(feature = "fmt")]
+ /// return a human-friendly name for this register. the returned name is the same as would be
+ /// used to render this register in an instruction.
+ pub fn name(&self) -> &'static str {
+ display::regspec_label(self)
+ }
+
+ /// construct a `RegSpec` for x87 register `st(num)`
+ #[inline]
+ pub fn st(num: u8) -> RegSpec {
+ if num >= 8 {
+ panic!("invalid x87 reg st({})", num);
+ }
+
+ RegSpec {
+ num,
+ bank: RegisterBank::ST
+ }
+ }
+
+ /// construct a `RegSpec` for xmm reg `num`
+ #[inline]
+ pub fn xmm(num: u8) -> RegSpec {
+ if num >= 32 {
+ panic!("invalid x86 xmm reg {}", num);
+ }
+
+ RegSpec {
+ num,
+ bank: RegisterBank::X
+ }
+ }
+
+ /// construct a `RegSpec` for ymm reg `num`
+ #[inline]
+ pub fn ymm(num: u8) -> RegSpec {
+ if num >= 32 {
+ panic!("invalid x86 ymm reg {}", num);
+ }
+
+ RegSpec {
+ num,
+ bank: RegisterBank::Y
+ }
+ }
+
+ /// construct a `RegSpec` for zmm reg `num`
+ #[inline]
+ pub fn zmm(num: u8) -> RegSpec {
+ if num >= 32 {
+ panic!("invalid x86 zmm reg {}", num);
+ }
+
+ RegSpec {
+ num,
+ bank: RegisterBank::Z
+ }
+ }
+
+ /// construct a `RegSpec` for mask reg `num`
+ #[inline]
+ pub fn mask(num: u8) -> RegSpec {
+ if num >= 32 {
+ panic!("invalid x86 mask reg {}", num);
+ }
+
+ RegSpec {
+ num,
+ bank: RegisterBank::K
+ }
+ }
+
+ /// construct a `RegSpec` for dword reg `num`
+ #[inline]
+ pub fn d(num: u8) -> RegSpec {
+ if num >= 8 {
+ panic!("invalid x86 dword reg {}", num);
+ }
+
+ RegSpec {
+ num,
+ bank: RegisterBank::D
+ }
+ }
+
+ /// construct a `RegSpec` for word reg `num`
+ #[inline]
+ pub fn w(num: u8) -> RegSpec {
+ if num >= 8 {
+ panic!("invalid x86 word reg {}", num);
+ }
+
+ RegSpec {
+ num,
+ bank: RegisterBank::W
+ }
+ }
+
+ /// construct a `RegSpec` for byte reg `num`
+ #[inline]
+ pub fn b(num: u8) -> RegSpec {
+ if num >= 8 {
+ panic!("invalid x86 byte reg {}", num);
+ }
+
+ RegSpec {
+ num,
+ bank: RegisterBank::B
+ }
+ }
+
+ #[inline]
+ fn from_parts(num: u8, bank: RegisterBank) -> RegSpec {
+ RegSpec {
+ num: num,
+ bank: bank
+ }
+ }
+
+ #[inline]
+ pub const fn eip() -> RegSpec {
+ RegSpec {
+ num: 0,
+ bank: RegisterBank::EIP
+ }
+ }
+
+ #[inline]
+ pub const fn eflags() -> RegSpec {
+ RegSpec {
+ num: 0,
+ bank: RegisterBank::EFlags
+ }
+ }
+
+ #[inline]
+ pub const fn esp() -> RegSpec {
+ RegSpec { bank: RegisterBank::D, num: 4 }
+ }
+
+ #[inline]
+ pub const fn ebp() -> RegSpec {
+ RegSpec { bank: RegisterBank::D, num: 5 }
+ }
+
+ #[inline]
+ pub const fn cs() -> RegSpec {
+ RegSpec { bank: RegisterBank::S, num: 1 }
+ }
+
+ #[inline]
+ pub const fn ds() -> RegSpec {
+ RegSpec { bank: RegisterBank::S, num: 3 }
+ }
+
+ #[inline]
+ pub const fn es() -> RegSpec {
+ RegSpec { bank: RegisterBank::S, num: 0 }
+ }
+
+ #[inline]
+ pub const fn ss() -> RegSpec {
+ RegSpec { bank: RegisterBank::S, num: 2 }
+ }
+
+ #[inline]
+ pub const fn fs() -> RegSpec {
+ RegSpec { bank: RegisterBank::S, num: 4 }
+ }
+
+ #[inline]
+ pub const fn gs() -> RegSpec {
+ RegSpec { bank: RegisterBank::S, num: 5 }
+ }
+
+ #[inline]
+ pub const fn eax() -> RegSpec {
+ RegSpec { bank: RegisterBank::D, num: 0 }
+ }
+
+ #[inline]
+ pub const fn ecx() -> RegSpec {
+ RegSpec { bank: RegisterBank::D, num: 1 }
+ }
+
+ #[inline]
+ pub const fn edx() -> RegSpec {
+ RegSpec { bank: RegisterBank::D, num: 2 }
+ }
+
+ #[inline]
+ pub const fn ebx() -> RegSpec {
+ RegSpec { bank: RegisterBank::D, num: 3 }
+ }
+
+ #[inline]
+ pub const fn esi() -> RegSpec {
+ RegSpec { bank: RegisterBank::D, num: 6 }
+ }
+
+ #[inline]
+ pub const fn edi() -> RegSpec {
+ RegSpec { bank: RegisterBank::D, num: 7 }
+ }
+
+ #[inline]
+ pub const fn ax() -> RegSpec {
+ RegSpec { bank: RegisterBank::W, num: 0 }
+ }
+
+ #[inline]
+ pub const fn cx() -> RegSpec {
+ RegSpec { bank: RegisterBank::W, num: 1 }
+ }
+
+ #[inline]
+ pub const fn dx() -> RegSpec {
+ RegSpec { bank: RegisterBank::W, num: 2 }
+ }
+
+ #[inline]
+ pub const fn bx() -> RegSpec {
+ RegSpec { bank: RegisterBank::W, num: 3 }
+ }
+
+ #[inline]
+ pub const fn sp() -> RegSpec {
+ RegSpec { bank: RegisterBank::W, num: 4 }
+ }
+
+ #[inline]
+ pub const fn bp() -> RegSpec {
+ RegSpec { bank: RegisterBank::W, num: 5 }
+ }
+
+ #[inline]
+ pub const fn si() -> RegSpec {
+ RegSpec { bank: RegisterBank::W, num: 6 }
+ }
+
+ #[inline]
+ pub const fn di() -> RegSpec {
+ RegSpec { bank: RegisterBank::W, num: 7 }
+ }
+
+ #[inline]
+ pub const fn al() -> RegSpec {
+ RegSpec { bank: RegisterBank::B, num: 0 }
+ }
+
+ #[inline]
+ pub const fn cl() -> RegSpec {
+ RegSpec { bank: RegisterBank::B, num: 1 }
+ }
+
+ #[inline]
+ pub const fn dl() -> RegSpec {
+ RegSpec { bank: RegisterBank::B, num: 2 }
+ }
+
+ #[inline]
+ pub const fn ah() -> RegSpec {
+ RegSpec { bank: RegisterBank::B, num: 4 }
+ }
+
+ #[inline]
+ pub const fn ch() -> RegSpec {
+ RegSpec { bank: RegisterBank::B, num: 5 }
+ }
+
+ #[inline]
+ pub const fn zmm0() -> RegSpec {
+ RegSpec { bank: RegisterBank::Z, num: 0 }
+ }
+
+ #[inline]
+ pub const fn ymm0() -> RegSpec {
+ RegSpec { bank: RegisterBank::Y, num: 0 }
+ }
+
+ #[inline]
+ pub const fn xmm0() -> RegSpec {
+ RegSpec { bank: RegisterBank::X, num: 0 }
+ }
+
+ #[inline]
+ pub const fn st0() -> RegSpec {
+ RegSpec { bank: RegisterBank::ST, num: 0 }
+ }
+
+ #[inline]
+ pub const fn mm0() -> RegSpec {
+ RegSpec { bank: RegisterBank::MM, num: 0 }
+ }
+
+ /// return the size of this register, in bytes
+ #[inline]
+ pub fn width(&self) -> u8 {
+ self.class().width()
+ }
+}
+
+#[allow(non_camel_case_types)]
+#[allow(dead_code)]
+enum SizeCode {
+ b,
+ vd,
+}
+
+/// an operand for an `x86` instruction.
+///
+/// `Operand::Nothing` should be unreachable in practice; any such instructions should have an
+/// operand count of 0 (or at least one fewer than the `Nothing` operand's position).
+#[derive(Clone, Debug, PartialEq)]
+#[non_exhaustive]
+pub enum Operand {
+ /// a sign-extended byte
+ ImmediateI8(i8),
+ /// a zero-extended byte
+ ImmediateU8(u8),
+ /// a sign-extended word
+ ImmediateI16(i16),
+ /// a zero-extended word
+ ImmediateU16(u16),
+ /// a sign-extended dword
+ ImmediateI32(i32),
+ /// a zero-extended dword
+ ImmediateU32(u32),
+ /// a bare register operand, such as `rcx`.
+ Register(RegSpec),
+ /// an `avx512` register operand with optional mask register and merge mode, such as
+ /// `zmm3{k4}{z}`.
+ ///
+ /// if the mask register is `k0`, there is no masking applied, and the default x86 operation is
+ /// `MergeMode::Merge`.
+ RegisterMaskMerge(RegSpec, RegSpec, MergeMode),
+ /// an `avx512` register operand with optional mask register, merge mode, and suppressed
+ /// exceptions, such as `zmm3{k4}{z}{rd-sae}`.
+ ///
+ /// if the mask register is `k0`, there is no masking applied, and the default x86 operation is
+ /// `MergeMode::Merge`.
+ RegisterMaskMergeSae(RegSpec, RegSpec, MergeMode, SaeMode),
+ /// an `avx512` register operand with optional mask register, merge mode, and suppressed
+ /// exceptions, with no overridden rounding mode, such as `zmm3{k4}{z}{sae}`.
+ ///
+ /// if the mask register is `k0`, there is no masking applied, and the default x86 operation is
+ /// `MergeMode::Merge`.
+ RegisterMaskMergeSaeNoround(RegSpec, RegSpec, MergeMode),
+ /// a memory access to a literal word address. it's extremely rare that a well-formed x86
+ /// instruction uses this mode. as an example, `[0x1133]`
+ DisplacementU16(u16),
+ /// a memory access to a literal qword address. it's relatively rare that a well-formed x86
+ /// instruction uses this mode, but plausibe. for example, `fs:[0x14]`. segment overrides,
+ /// however, are maintained on the instruction itself.
+ DisplacementU32(u32),
+ /// a simple dereference of the address held in some register. for example: `[esi]`.
+ RegDeref(RegSpec),
+ /// a dereference of the address held in some register with offset. for example: `[esi + 0x14]`.
+ RegDisp(RegSpec, i32),
+ /// a dereference of the address held in some register scaled by 1, 2, 4, or 8. this is almost always used with the `lea` instruction. for example: `[edx * 4]`.
+ RegScale(RegSpec, u8),
+ /// a dereference of the address from summing two registers. for example: `[ebp + rax]`
+ RegIndexBase(RegSpec, RegSpec),
+ /// a dereference of the address from summing two registers with offset. for example: `[edi + ecx + 0x40]`
+ RegIndexBaseDisp(RegSpec, RegSpec, i32),
+ /// a dereference of the address held in some register scaled by 1, 2, 4, or 8 with offset. this is almost always used with the `lea` instruction. for example: `[eax * 4 + 0x30]`.
+ RegScaleDisp(RegSpec, u8, i32),
+ /// a dereference of the address from summing a register and index register scaled by 1, 2, 4,
+ /// or 8. for
+ /// example: `[esi + ecx * 4]`
+ RegIndexBaseScale(RegSpec, RegSpec, u8),
+ /// a dereference of the address from summing a register and index register scaled by 1, 2, 4,
+ /// or 8, with offset. for
+ /// example: `[esi + ecx * 4 + 0x1234]`
+ RegIndexBaseScaleDisp(RegSpec, RegSpec, u8, i32),
+ /// an `avx512` dereference of register with optional masking. for example: `[edx]{k3}`
+ RegDerefMasked(RegSpec, RegSpec),
+ /// an `avx512` dereference of register plus offset, with optional masking. for example: `[esp + 0x40]{k3}`
+ RegDispMasked(RegSpec, i32, RegSpec),
+ /// an `avx512` dereference of a register scaled by 1, 2, 4, or 8, with optional masking. this
+ /// seems extraordinarily unlikely to occur in practice. for example: `[esi * 4]{k2}`
+ RegScaleMasked(RegSpec, u8, RegSpec),
+ /// an `avx512` dereference of a register plus index scaled by 1, 2, 4, or 8, with optional masking.
+ /// for example: `[esi + eax * 4]{k6}`
+ RegIndexBaseMasked(RegSpec, RegSpec, RegSpec),
+ /// an `avx512` dereference of a register plus offset, with optional masking. for example:
+ /// `[esi + eax + 0x1313]{k6}`
+ RegIndexBaseDispMasked(RegSpec, RegSpec, i32, RegSpec),
+ /// an `avx512` dereference of a register scaled by 1, 2, 4, or 8 plus offset, with optional
+ /// masking. this seems extraordinarily unlikely to occur in practice. for example: `[esi *
+ /// 4 + 0x1357]{k2}`
+ RegScaleDispMasked(RegSpec, u8, i32, RegSpec),
+ /// an `avx512` dereference of a register plus index scaled by 1, 2, 4, or 8, with optional
+ /// masking. for example: `[esi + eax * 4]{k6}`
+ RegIndexBaseScaleMasked(RegSpec, RegSpec, u8, RegSpec),
+ /// an `avx512` dereference of a register plus index scaled by 1, 2, 4, or 8 and offset, with
+ /// optional masking. for example: `[esi + eax * 4 + 0x1313]{k6}`
+ RegIndexBaseScaleDispMasked(RegSpec, RegSpec, u8, i32, RegSpec),
+ /// no operand. it is a bug for `yaxpeax-x86` to construct an `Operand` of this kind for public
+ /// use; the instruction's `operand_count` should be reduced so as to make this invisible to
+ /// library clients.
+ Nothing,
+}
+
+impl OperandSpec {
+ fn masked(self) -> Self {
+ match self {
+ OperandSpec::RegRRR => OperandSpec::RegRRR_maskmerge,
+ OperandSpec::RegMMM => OperandSpec::RegMMM_maskmerge,
+ OperandSpec::RegVex => OperandSpec::RegVex_maskmerge,
+ OperandSpec::Deref => OperandSpec::Deref_mask,
+ OperandSpec::RegDisp => OperandSpec::RegDisp_mask,
+ OperandSpec::RegScale => OperandSpec::RegScale_mask,
+ OperandSpec::RegScaleDisp => OperandSpec::RegScaleDisp_mask,
+ OperandSpec::RegIndexBase => OperandSpec::RegIndexBase_mask,
+ OperandSpec::RegIndexBaseDisp => OperandSpec::RegIndexBaseDisp_mask,
+ OperandSpec::RegIndexBaseScale => OperandSpec::RegIndexBaseScale_mask,
+ OperandSpec::RegIndexBaseScaleDisp => OperandSpec::RegIndexBaseScaleDisp_mask,
+ o => o,
+ }
+ }
+ fn is_memory(&self) -> bool {
+ match self {
+ OperandSpec::DispU16 |
+ OperandSpec::DispU32 |
+ OperandSpec::Deref |
+ OperandSpec::Deref_si |
+ OperandSpec::Deref_di |
+ OperandSpec::Deref_esi |
+ OperandSpec::Deref_edi |
+ OperandSpec::RegDisp |
+ OperandSpec::RegScale |
+ OperandSpec::RegIndexBase |
+ OperandSpec::RegIndexBaseDisp |
+ OperandSpec::RegScaleDisp |
+ OperandSpec::RegIndexBaseScale |
+ OperandSpec::RegIndexBaseScaleDisp |
+ OperandSpec::Deref_mask |
+ OperandSpec::RegDisp_mask |
+ OperandSpec::RegScale_mask |
+ OperandSpec::RegScaleDisp_mask |
+ OperandSpec::RegIndexBase_mask |
+ OperandSpec::RegIndexBaseDisp_mask |
+ OperandSpec::RegIndexBaseScale_mask |
+ OperandSpec::RegIndexBaseScaleDisp_mask => {
+ true
+ },
+ OperandSpec::ImmI8 |
+ OperandSpec::ImmI16 |
+ OperandSpec::ImmI32 |
+ OperandSpec::ImmU8 |
+ OperandSpec::ImmU16 |
+ OperandSpec::RegRRR |
+ OperandSpec::RegRRR_maskmerge |
+ OperandSpec::RegRRR_maskmerge_sae |
+ OperandSpec::RegRRR_maskmerge_sae_noround |
+ OperandSpec::RegMMM |
+ OperandSpec::RegMMM_maskmerge |
+ OperandSpec::RegMMM_maskmerge_sae_noround |
+ OperandSpec::RegVex |
+ OperandSpec::RegVex_maskmerge |
+ OperandSpec::Reg4 |
+ OperandSpec::ImmInDispField |
+ OperandSpec::Nothing => {
+ false
+ }
+ }
+ }
+}
+/// an `avx512` merging mode.
+///
+/// the behavior for non-`avx512` instructions is equivalent to `merge`. `zero` is only useful in
+/// conjunction with a mask register, where bits specified in the mask register correspond to
+/// unmodified items in the instruction's desination.
+#[derive(Debug, Copy, Clone, PartialEq, Eq)]
+pub enum MergeMode {
+ Merge,
+ Zero,
+}
+impl From<bool> for MergeMode {
+ fn from(b: bool) -> Self {
+ if b {
+ MergeMode::Zero
+ } else {
+ MergeMode::Merge
+ }
+ }
+}
+/// an `avx512` custom rounding mode.
+#[derive(Debug, Copy, Clone, PartialEq, Eq)]
+pub enum SaeMode {
+ RoundNearest,
+ RoundDown,
+ RoundUp,
+ RoundZero,
+}
+const SAE_MODES: [SaeMode; 4] = [
+ SaeMode::RoundNearest,
+ SaeMode::RoundDown,
+ SaeMode::RoundUp,
+ SaeMode::RoundZero,
+];
+impl SaeMode {
+ /// a human-friendly label for this `SaeMode`:
+ ///
+ /// ```
+ /// use yaxpeax_x86::long_mode::SaeMode;
+ ///
+ /// assert_eq!(SaeMode::RoundNearest.label(), "{rne-sae}");
+ /// assert_eq!(SaeMode::RoundDown.label(), "{rd-sae}");
+ /// assert_eq!(SaeMode::RoundUp.label(), "{ru-sae}");
+ /// assert_eq!(SaeMode::RoundZero.label(), "{rz-sae}");
+ /// ```
+ pub fn label(&self) -> &'static str {
+ match self {
+ SaeMode::RoundNearest => "{rne-sae}",
+ SaeMode::RoundDown => "{rd-sae}",
+ SaeMode::RoundUp => "{ru-sae}",
+ SaeMode::RoundZero => "{rz-sae}",
+ }
+ }
+
+ fn from(l: bool, lp: bool) -> Self {
+ let mut idx = 0;
+ if l {
+ idx |= 1;
+ }
+ if lp {
+ idx |= 2;
+ }
+ SAE_MODES[idx]
+ }
+}
+impl Operand {
+ fn from_spec(inst: &Instruction, spec: OperandSpec) -> Operand {
+ match spec {
+ OperandSpec::Nothing => {
+ Operand::Nothing
+ }
+ // the register in modrm_rrr
+ OperandSpec::RegRRR => {
+ Operand::Register(inst.regs[0])
+ }
+ OperandSpec::RegRRR_maskmerge => {
+ Operand::RegisterMaskMerge(
+ inst.regs[0],
+ RegSpec::mask(inst.prefixes.evex_unchecked().mask_reg()),
+ MergeMode::from(inst.prefixes.evex_unchecked().merge()),
+ )
+ }
+ OperandSpec::RegRRR_maskmerge_sae => {
+ Operand::RegisterMaskMergeSae(
+ inst.regs[0],
+ RegSpec::mask(inst.prefixes.evex_unchecked().mask_reg()),
+ MergeMode::from(inst.prefixes.evex_unchecked().merge()),
+ SaeMode::from(inst.prefixes.evex_unchecked().vex().l(), inst.prefixes.evex_unchecked().lp()),
+ )
+ }
+ OperandSpec::RegRRR_maskmerge_sae_noround => {
+ Operand::RegisterMaskMergeSaeNoround(
+ inst.regs[0],
+ RegSpec::mask(inst.prefixes.evex_unchecked().mask_reg()),
+ MergeMode::from(inst.prefixes.evex_unchecked().merge()),
+ )
+ }
+ // the register in modrm_mmm (eg modrm mod bits were 11)
+ OperandSpec::RegMMM => {
+ Operand::Register(inst.regs[1])
+ }
+ OperandSpec::RegMMM_maskmerge => {
+ Operand::RegisterMaskMerge(
+ inst.regs[1],
+ RegSpec::mask(inst.prefixes.evex_unchecked().mask_reg()),
+ MergeMode::from(inst.prefixes.evex_unchecked().merge()),
+ )
+ }
+ OperandSpec::RegMMM_maskmerge_sae_noround => {
+ Operand::RegisterMaskMergeSaeNoround(
+ inst.regs[1],
+ RegSpec::mask(inst.prefixes.evex_unchecked().mask_reg()),
+ MergeMode::from(inst.prefixes.evex_unchecked().merge()),
+ )
+ }
+ OperandSpec::RegVex => {
+ Operand::Register(inst.regs[3])
+ }
+ OperandSpec::RegVex_maskmerge => {
+ Operand::RegisterMaskMerge(
+ inst.regs[3],
+ RegSpec::mask(inst.prefixes.evex_unchecked().mask_reg()),
+ MergeMode::from(inst.prefixes.evex_unchecked().merge()),
+ )
+ }
+ OperandSpec::Reg4 => {
+ Operand::Register(RegSpec { num: inst.imm as u8, bank: inst.regs[3].bank })
+ }
+ OperandSpec::ImmI8 => Operand::ImmediateI8(inst.imm as i8),
+ OperandSpec::ImmU8 => Operand::ImmediateU8(inst.imm as u8),
+ OperandSpec::ImmI16 => Operand::ImmediateI16(inst.imm as i16),
+ OperandSpec::ImmU16 => Operand::ImmediateU16(inst.imm as u16),
+ OperandSpec::ImmI32 => Operand::ImmediateI32(inst.imm as i32),
+ OperandSpec::ImmInDispField => Operand::ImmediateU16(inst.disp as u16),
+ OperandSpec::DispU16 => Operand::DisplacementU16(inst.disp as u16),
+ OperandSpec::DispU32 => Operand::DisplacementU32(inst.disp),
+ OperandSpec::Deref => {
+ Operand::RegDeref(inst.regs[1])
+ }
+ OperandSpec::Deref_si => {
+ Operand::RegDeref(RegSpec::si())
+ }
+ OperandSpec::Deref_di => {
+ Operand::RegDeref(RegSpec::di())
+ }
+ OperandSpec::Deref_esi => {
+ Operand::RegDeref(RegSpec::esi())
+ }
+ OperandSpec::Deref_edi => {
+ Operand::RegDeref(RegSpec::edi())
+ }
+ OperandSpec::RegDisp => {
+ Operand::RegDisp(inst.regs[1], inst.disp as i32)
+ }
+ OperandSpec::RegScale => {
+ Operand::RegScale(inst.regs[2], inst.scale)
+ }
+ OperandSpec::RegIndexBase => {
+ Operand::RegIndexBase(inst.regs[1], inst.regs[2])
+ }
+ OperandSpec::RegIndexBaseDisp => {
+ Operand::RegIndexBaseDisp(inst.regs[1], inst.regs[2], inst.disp as i32)
+ }
+ OperandSpec::RegScaleDisp => {
+ Operand::RegScaleDisp(inst.regs[2], inst.scale, inst.disp as i32)
+ }
+ OperandSpec::RegIndexBaseScale => {
+ Operand::RegIndexBaseScale(inst.regs[1], inst.regs[2], inst.scale)
+ }
+ OperandSpec::RegIndexBaseScaleDisp => {
+ Operand::RegIndexBaseScaleDisp(inst.regs[1], inst.regs[2], inst.scale, inst.disp as i32)
+ }
+ OperandSpec::Deref_mask => {
+ if inst.prefixes.evex_unchecked().mask_reg() != 0 {
+ Operand::RegDerefMasked(inst.regs[1], RegSpec::mask(inst.prefixes.evex_unchecked().mask_reg()))
+ } else {
+ Operand::RegDeref(inst.regs[1])
+ }
+ }
+ OperandSpec::RegDisp_mask => {
+ if inst.prefixes.evex_unchecked().mask_reg() != 0 {
+ Operand::RegDispMasked(inst.regs[1], inst.disp as i32, RegSpec::mask(inst.prefixes.evex_unchecked().mask_reg()))
+ } else {
+ Operand::RegDisp(inst.regs[1], inst.disp as i32)
+ }
+ }
+ OperandSpec::RegScale_mask => {
+ if inst.prefixes.evex_unchecked().mask_reg() != 0 {
+ Operand::RegScaleMasked(inst.regs[2], inst.scale, RegSpec::mask(inst.prefixes.evex_unchecked().mask_reg()))
+ } else {
+ Operand::RegScale(inst.regs[2], inst.scale)
+ }
+ }
+ OperandSpec::RegScaleDisp_mask => {
+ if inst.prefixes.evex_unchecked().mask_reg() != 0 {
+ Operand::RegScaleDispMasked(inst.regs[2], inst.scale, inst.disp as i32, RegSpec::mask(inst.prefixes.evex_unchecked().mask_reg()))
+ } else {
+ Operand::RegScaleDisp(inst.regs[2], inst.scale, inst.disp as i32)
+ }
+ }
+ OperandSpec::RegIndexBase_mask => {
+ if inst.prefixes.evex_unchecked().mask_reg() != 0 {
+ Operand::RegIndexBaseMasked(inst.regs[1], inst.regs[2], RegSpec::mask(inst.prefixes.evex_unchecked().mask_reg()))
+ } else {
+ Operand::RegIndexBase(inst.regs[1], inst.regs[2])
+ }
+ }
+ OperandSpec::RegIndexBaseDisp_mask => {
+ if inst.prefixes.evex_unchecked().mask_reg() != 0 {
+ Operand::RegIndexBaseDispMasked(inst.regs[1], inst.regs[2], inst.disp as i32, RegSpec::mask(inst.prefixes.evex_unchecked().mask_reg()))
+ } else {
+ Operand::RegIndexBaseDisp(inst.regs[1], inst.regs[2], inst.disp as i32)
+ }
+ }
+ OperandSpec::RegIndexBaseScale_mask => {
+ if inst.prefixes.evex_unchecked().mask_reg() != 0 {
+ Operand::RegIndexBaseScaleMasked(inst.regs[1], inst.regs[2], inst.scale, RegSpec::mask(inst.prefixes.evex_unchecked().mask_reg()))
+ } else {
+ Operand::RegIndexBaseScale(inst.regs[1], inst.regs[2], inst.scale)
+ }
+ }
+ OperandSpec::RegIndexBaseScaleDisp_mask => {
+ if inst.prefixes.evex_unchecked().mask_reg() != 0 {
+ Operand::RegIndexBaseScaleDispMasked(inst.regs[1], inst.regs[2], inst.scale, inst.disp as i32, RegSpec::mask(inst.prefixes.evex_unchecked().mask_reg()))
+ } else {
+ Operand::RegIndexBaseScaleDisp(inst.regs[1], inst.regs[2], inst.scale, inst.disp as i32)
+ }
+ }
+ }
+ }
+ /// returns `true` if this operand implies a memory access, `false` otherwise.
+ ///
+ /// notably, the `lea` instruction uses a memory operand without actually ever accessing
+ /// memory.
+ pub fn is_memory(&self) -> bool {
+ match self {
+ Operand::DisplacementU16(_) |
+ Operand::DisplacementU32(_) |
+ Operand::RegDeref(_) |
+ Operand::RegDisp(_, _) |
+ Operand::RegScale(_, _) |
+ Operand::RegIndexBase(_, _) |
+ Operand::RegIndexBaseDisp(_, _, _) |
+ Operand::RegScaleDisp(_, _, _) |
+ Operand::RegIndexBaseScale(_, _, _) |
+ Operand::RegIndexBaseScaleDisp(_, _, _, _) |
+ Operand::RegDerefMasked(_, _) |
+ Operand::RegDispMasked(_, _, _) |
+ Operand::RegScaleMasked(_, _, _) |
+ Operand::RegIndexBaseMasked(_, _, _) |
+ Operand::RegIndexBaseDispMasked(_, _, _, _) |
+ Operand::RegScaleDispMasked(_, _, _, _) |
+ Operand::RegIndexBaseScaleMasked(_, _, _, _) |
+ Operand::RegIndexBaseScaleDispMasked(_, _, _, _, _) => {
+ true
+ },
+ Operand::ImmediateI8(_) |
+ Operand::ImmediateU8(_) |
+ Operand::ImmediateI16(_) |
+ Operand::ImmediateU16(_) |
+ Operand::ImmediateU32(_) |
+ Operand::ImmediateI32(_) |
+ Operand::Register(_) |
+ Operand::RegisterMaskMerge(_, _, _) |
+ Operand::RegisterMaskMergeSae(_, _, _, _) |
+ Operand::RegisterMaskMergeSaeNoround(_, _, _) |
+ Operand::Nothing => {
+ false
+ }
+ }
+ }
+
+ /// return the width of this operand, in bytes. register widths are determined by the
+ /// register's class. the widths of memory operands are recorded on the instruction this
+ /// `Operand` came from; `None` here means the authoritative width is `instr.mem_size()`.
+ pub fn width(&self) -> Option<u8> {
+ match self {
+ Operand::Register(reg) => {
+ Some(reg.width())
+ }
+ Operand::RegisterMaskMerge(reg, _, _) => {
+ Some(reg.width())
+ }
+ Operand::ImmediateI8(_) |
+ Operand::ImmediateU8(_) => {
+ Some(1)
+ }
+ Operand::ImmediateI16(_) |
+ Operand::ImmediateU16(_) => {
+ Some(2)
+ }
+ Operand::ImmediateI32(_) |
+ Operand::ImmediateU32(_) => {
+ Some(4)
+ }
+ // memory operands or `Nothing`
+ _ => {
+ None
+ }
+ }
+ }
+}
+
+#[test]
+fn operand_size() {
+ assert_eq!(core::mem::size_of::<OperandSpec>(), 1);
+ assert_eq!(core::mem::size_of::<RegSpec>(), 2);
+ // assert_eq!(core::mem::size_of::<Prefixes>(), 4);
+ // assert_eq!(core::mem::size_of::<Instruction>(), 40);
+}
+
+/// an `x86` register class - `qword`, `dword`, `xmmword`, `segment`, and so on.
+///
+/// this is mostly useful for comparing a `RegSpec`'s [`RegSpec::class()`] with a constant out of
+/// [`register_class`].
+#[cfg_attr(feature="use-serde", derive(Serialize, Deserialize))]
+#[derive(Copy, Clone, Debug, Ord, PartialOrd, Eq, PartialEq, Hash)]
+pub struct RegisterClass {
+ kind: RegisterBank,
+}
+
+const REGISTER_CLASS_NAMES: &[&'static str] = &[
+ "dword",
+ "word",
+ "byte",
+ "cr",
+ "dr",
+ "segment",
+ "xmm",
+ "BUG. PLEASE REPORT.",
+ "BUG. PLEASE REPORT.",
+ "BUG. PLEASE REPORT.",
+ "ymm",
+ "BUG. PLEASE REPORT.",
+ "BUG. PLEASE REPORT.",
+ "BUG. PLEASE REPORT.",
+ "zmm",
+ "BUG. PLEASE REPORT.",
+ "BUG. PLEASE REPORT.",
+ "BUG. PLEASE REPORT.",
+ "x87-stack",
+ "mmx",
+ "k",
+ "eip",
+ "eflags",
+];
+
+/// high-level register classes in an x86 machine, such as "2-byte general purpose", "xmm", "x87",
+/// and so on. constants in this module are useful for inspecting the register class of a decoded
+/// instruction. as an example:
+/// ```
+/// extern crate yaxpeax_arch;
+/// use yaxpeax_x86::real_mode::{self as amd64};
+/// use yaxpeax_x86::real_mode::{Opcode, Operand, RegisterClass};
+/// use yaxpeax_arch::{Decoder, U8Reader};
+///
+/// let movsx_ax_cl = &[0x0f, 0xbe, 0xc1];
+/// let decoder = amd64::InstDecoder::default();
+/// let instruction = decoder
+/// .decode(&mut U8Reader::new(movsx_ax_cl))
+/// .expect("can decode");
+///
+/// assert_eq!(instruction.opcode(), Opcode::MOVSX);
+///
+/// fn show_register_class_info(regclass: RegisterClass) {
+/// match regclass {
+/// amd64::register_class::W => {
+/// println!(" and is a word register");
+/// }
+/// amd64::register_class::B => {
+/// println!(" and is a byte register");
+/// }
+/// other => {
+/// panic!("unexpected and invalid register class {:?}", other);
+/// }
+/// }
+/// }
+///
+/// if let Operand::Register(regspec) = instruction.operand(0) {
+/// println!("first operand is {}", regspec);
+/// show_register_class_info(regspec.class());
+/// }
+///
+/// if let Operand::Register(regspec) = instruction.operand(1) {
+/// println!("first operand is {}", regspec);
+/// show_register_class_info(regspec.class());
+/// }
+/// ```
+///
+/// this is preferable to alternatives like checking register names against a known list: a
+/// register class is one byte and "is qword general-purpose" can then be a simple one-byte
+/// compare, instead of 16 string compares.
+///
+/// `yaxpeax-x86` does not attempt to further distinguish between, for example, register
+/// suitability as operands. as an example, `cl` is only a byte register, with no additional
+/// register class to describe its use as an implicit shift operand.
+pub mod register_class {
+ use super::{RegisterBank, RegisterClass};
+ /// doubleword registers: eax through edi.
+ pub const D: RegisterClass = RegisterClass { kind: RegisterBank::D };
+ /// word registers: ax through di.
+ pub const W: RegisterClass = RegisterClass { kind: RegisterBank::W };
+ /// byte registers: al, cl, dl, bl, ah, ch, dh, bh.
+ pub const B: RegisterClass = RegisterClass { kind: RegisterBank::B };
+ /// control registers cr0 through cr7.
+ pub const CR: RegisterClass = RegisterClass { kind: RegisterBank::CR};
+ /// debug registers dr0 through dr7.
+ pub const DR: RegisterClass = RegisterClass { kind: RegisterBank::DR };
+ /// segment registers es, cs, ss, ds, fs, gs.
+ pub const S: RegisterClass = RegisterClass { kind: RegisterBank::S };
+ /// xmm registers xmm0 through xmm31.
+ pub const X: RegisterClass = RegisterClass { kind: RegisterBank::X };
+ /// ymm registers ymm0 through ymm31.
+ pub const Y: RegisterClass = RegisterClass { kind: RegisterBank::Y };
+ /// zmm registers zmm0 through zmm31.
+ pub const Z: RegisterClass = RegisterClass { kind: RegisterBank::Z };
+ /// x87 floating point stack entries st(0) through st(7).
+ pub const ST: RegisterClass = RegisterClass { kind: RegisterBank::ST };
+ /// mmx registers mm0 through mm7.
+ pub const MM: RegisterClass = RegisterClass { kind: RegisterBank::MM };
+ /// `AVX512` mask registers k0 through k7.
+ pub const K: RegisterClass = RegisterClass { kind: RegisterBank::K };
+ /// the full instruction pointer register.
+ pub const EIP: RegisterClass = RegisterClass { kind: RegisterBank::EIP };
+ /// the full cpu flags register.
+ pub const EFLAGS: RegisterClass = RegisterClass { kind: RegisterBank::EFlags };
+}
+
+impl RegisterClass {
+ /// return a human-friendly name for this register class
+ pub fn name(&self) -> &'static str {
+ REGISTER_CLASS_NAMES[self.kind as usize]
+ }
+
+ /// return the size of this register class, in bytes
+ pub fn width(&self) -> u8 {
+ match self.kind {
+ RegisterBank::D => 4,
+ RegisterBank::W => 2,
+ RegisterBank::B => 1,
+ RegisterBank::CR |
+ RegisterBank::DR => {
+ 4
+ },
+ RegisterBank::S => {
+ 2
+ },
+ RegisterBank::EIP => {
+ 4
+ }
+ RegisterBank::EFlags => {
+ 4
+ }
+ RegisterBank::X => {
+ 16
+ }
+ RegisterBank::Y => {
+ 32
+ }
+ RegisterBank::Z => {
+ 64
+ }
+ RegisterBank::ST => {
+ 10
+ }
+ RegisterBank::MM => {
+ 8
+ }
+ RegisterBank::K => {
+ 8
+ }
+ }
+ }
+}
+
+#[allow(non_camel_case_types)]
+#[cfg_attr(feature="use-serde", derive(Serialize, Deserialize))]
+#[derive(Copy, Clone, Debug, Ord, PartialOrd, Eq, PartialEq, Hash)]
+enum RegisterBank {
+ D = 0, W = 1, B = 2, // Dword, Word, Byte
+ CR = 3, DR = 4, S = 5, EIP = 21, EFlags = 22, // Control reg, Debug reg, Selector, ...
+ X = 6, Y = 10, Z = 14, // XMM, YMM, ZMM
+ ST = 18, MM = 19, // ST, MM regs (x87, mmx)
+ K = 20, // AVX512 mask registers
+}
+
+/// the segment register used by the corresponding instruction.
+///
+/// typically this will be `ds` but can be overridden. some instructions have specific segment
+/// registers used regardless of segment prefixes, and in these cases `yaxpeax-x86` will report the
+/// actual segment register a physical processor would use.
+#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
+pub enum Segment {
+ DS = 0, CS, ES, FS, GS, SS
+}
+
+const BMI1: [Opcode; 6] = [
+ Opcode::ANDN,
+ Opcode::BEXTR,
+ Opcode::BLSI,
+ Opcode::BLSMSK,
+ Opcode::BLSR,
+ Opcode::TZCNT,
+];
+
+const BMI2: [Opcode; 8] = [
+ Opcode::BZHI,
+ Opcode::MULX,
+ Opcode::PDEP,
+ Opcode::PEXT,
+ Opcode::RORX,
+ Opcode::SARX,
+ Opcode::SHRX,
+ Opcode::SHLX,
+];
+
+#[allow(dead_code)]
+const XSAVE: [Opcode; 10] = [
+ Opcode::XGETBV,
+ Opcode::XRSTOR,
+ Opcode::XRSTORS,
+ Opcode::XSAVE,
+ Opcode::XSAVEC,
+ Opcode::XSAVEC64,
+ Opcode::XSAVEOPT,
+ Opcode::XSAVES,
+ Opcode::XSAVES64,
+ Opcode::XSETBV,
+];
+
+#[allow(non_camel_case_types)]
+#[derive(Copy, Clone, Debug, Eq, PartialEq)]
+#[non_exhaustive]
+pub enum Opcode {
+ Invalid,
+ ADD,
+ OR,
+ ADC,
+ SBB,
+ AND,
+ XOR,
+ SUB,
+ CMP,
+ XADD,
+ BT,
+ BTS,
+ BTC,
+ BTR,
+ BSF,
+ BSR,
+ TZCNT,
+ MOVSS,
+ ADDSS,
+ SUBSS,
+ MULSS,
+ DIVSS,
+ MINSS,
+ MAXSS,
+ SQRTSS,
+ MOVSD,
+ SQRTSD,
+ ADDSD,
+ SUBSD,
+ MULSD,
+ DIVSD,
+ MINSD,
+ MAXSD,
+ MOVSLDUP,
+ MOVSHDUP,
+ MOVDDUP,
+ HADDPS,
+ HSUBPS,
+ ADDSUBPD,
+ ADDSUBPS,
+ CVTSI2SS,
+ CVTSI2SD,
+ CVTTSD2SI,
+ CVTTPS2DQ,
+ CVTPD2DQ,
+ CVTPD2PS,
+ CVTPS2DQ,
+ CVTSD2SI,
+ CVTSD2SS,
+ CVTTSS2SI,
+ CVTSS2SI,
+ CVTSS2SD,
+ CVTDQ2PD,
+ LDDQU,
+ MOVZX,
+ MOVSX,
+ MOVSXD,
+ SAR,
+ SAL,
+ SHR,
+ SHRD,
+ SHL,
+ RCR,
+ RCL,
+ ROR,
+ ROL,
+ INC,
+ DEC,
+ HLT,
+ CALL,
+ CALLF,
+ JMP,
+ JMPF,
+ PUSH,
+ POP,
+ LEA,
+ NOP,
+ PREFETCHNTA,
+ PREFETCH0,
+ PREFETCH1,
+ PREFETCH2,
+ XCHG,
+ POPF,
+ INT,
+ INTO,
+ IRET,
+ IRETD,
+ IRETQ,
+ RETF,
+ ENTER,
+ LEAVE,
+ MOV,
+ RETURN,
+ PUSHF,
+ WAIT,
+ CBW,
+ CWDE,
+ CDQE,
+ CWD,
+ CDQ,
+ CQO,
+ LODS,
+ STOS,
+ LAHF,
+ SAHF,
+ CMPS,
+ SCAS,
+ MOVS,
+ TEST,
+ INS,
+ IN,
+ OUTS,
+ OUT,
+ IMUL,
+ JO,
+ JNO,
+ JB,
+ JNB,
+ JZ,
+ JNZ,
+ JA,
+ JNA,
+ JS,
+ JNS,
+ JP,
+ JNP,
+ JL,
+ JGE,
+ JLE,
+ JG,
+ CMOVA,
+ CMOVB,
+ CMOVG,
+ CMOVGE,
+ CMOVL,
+ CMOVLE,
+ CMOVNA,
+ CMOVNB,
+ CMOVNO,
+ CMOVNP,
+ CMOVNS,
+ CMOVNZ,
+ CMOVO,
+ CMOVP,
+ CMOVS,
+ CMOVZ,
+ DIV,
+ IDIV,
+ MUL,
+ NEG,
+ NOT,
+ CMPXCHG,
+ SETO,
+ SETNO,
+ SETB,
+ SETAE,
+ SETZ,
+ SETNZ,
+ SETBE,
+ SETA,
+ SETS,
+ SETNS,
+ SETP,
+ SETNP,
+ SETL,
+ SETGE,
+ SETLE,
+ SETG,
+ CPUID,
+ UD0,
+ UD1,
+ UD2,
+ WBINVD,
+ INVD,
+ SYSRET,
+ CLTS,
+ SYSCALL,
+ LSL,
+ LAR,
+ LES,
+ LDS,
+ SGDT,
+ SIDT,
+ LGDT,
+ LIDT,
+ SMSW,
+ LMSW,
+ SWAPGS,
+ RDTSCP,
+ INVLPG,
+ FXSAVE,
+ FXRSTOR,
+ LDMXCSR,
+ STMXCSR,
+ XSAVE,
+ XRSTOR,
+ XSAVEOPT,
+ LFENCE,
+ MFENCE,
+ SFENCE,
+ CLFLUSH,
+ CLFLUSHOPT,
+ CLWB,
+ WRMSR,
+ RDTSC,
+ RDMSR,
+ RDPMC,
+ SLDT,
+ STR,
+ LLDT,
+ LTR,
+ VERR,
+ VERW,
+ CMC,
+ CLC,
+ STC,
+ CLI,
+ STI,
+ CLD,
+ STD,
+ JMPE,
+ POPCNT,
+ MOVDQU,
+ MOVDQA,
+ MOVQ,
+ CMPSS,
+ CMPSD,
+ UNPCKLPS,
+ UNPCKLPD,
+ UNPCKHPS,
+ UNPCKHPD,
+ PSHUFHW,
+ PSHUFLW,
+ MOVUPS,
+ MOVQ2DQ,
+ MOVDQ2Q,
+ RSQRTSS,
+ RCPSS,
+
+ ANDN,
+ BEXTR,
+ BLSI,
+ BLSMSK,
+ BLSR,
+ VMCLEAR,
+ VMXON,
+ VMCALL,
+ VMLAUNCH,
+ VMRESUME,
+ VMXOFF,
+ PCONFIG,
+ MONITOR,
+ MWAIT,
+ MONITORX,
+ MWAITX,
+ CLAC,
+ STAC,
+ ENCLS,
+ ENCLV,
+ XGETBV,
+ XSETBV,
+ VMFUNC,
+ XABORT,
+ XBEGIN,
+ XEND,
+ XTEST,
+ ENCLU,
+ RDPKRU,
+ WRPKRU,
+
+ RDPRU,
+ CLZERO,
+
+ RDSEED,
+ RDRAND,
+
+ ADDPS,
+ ADDPD,
+ ANDNPS,
+ ANDNPD,
+ ANDPS,
+ ANDPD,
+ BSWAP,
+ CMPPD,
+ CMPPS,
+ COMISD,
+ COMISS,
+ CVTDQ2PS,
+ CVTPI2PS,
+ CVTPI2PD,
+ CVTPS2PD,
+ CVTPS2PI,
+ CVTPD2PI,
+ CVTTPS2PI,
+ CVTTPD2PI,
+ CVTTPD2DQ,
+ DIVPS,
+ DIVPD,
+ EMMS,
+ GETSEC,
+ LFS,
+ LGS,
+ LSS,
+ MASKMOVQ,
+ MASKMOVDQU,
+ MAXPS,
+ MAXPD,
+ MINPS,
+ MINPD,
+ MOVAPS,
+ MOVAPD,
+ MOVD,
+ MOVLPS,
+ MOVLPD,
+ MOVHPS,
+ MOVHPD,
+ MOVLHPS,
+ MOVHLPS,
+ MOVUPD,
+ MOVMSKPS,
+ MOVMSKPD,
+ MOVNTI,
+ MOVNTPS,
+ MOVNTPD,
+ EXTRQ,
+ INSERTQ,
+ MOVNTSS,
+ MOVNTSD,
+ MOVNTQ,
+ MOVNTDQ,
+ MULPS,
+ MULPD,
+ ORPS,
+ ORPD,
+ PACKSSDW,
+ PACKSSWB,
+ PACKUSWB,
+ PADDB,
+ PADDD,
+ PADDQ,
+ PADDSB,
+ PADDSW,
+ PADDUSB,
+ PADDUSW,
+ PADDW,
+ PAND,
+ PANDN,
+ PAVGB,
+ PAVGW,
+ PCMPEQB,
+ PCMPEQD,
+ PCMPEQW,
+ PCMPGTB,
+ PCMPGTD,
+ PCMPGTW,
+ PINSRW,
+ PMADDWD,
+ PMAXSW,
+ PMAXUB,
+ PMINSW,
+ PMINUB,
+ PMOVMSKB,
+ PMULHUW,
+ PMULHW,
+ PMULLW,
+ PMULUDQ,
+ POR,
+ PSADBW,
+ PSHUFW,
+ PSHUFD,
+ PSLLD,
+ PSLLDQ,
+ PSLLQ,
+ PSLLW,
+ PSRAD,
+ PSRAW,
+ PSRLD,
+ PSRLDQ,
+ PSRLQ,
+ PSRLW,
+ PSUBB,
+ PSUBD,
+ PSUBQ,
+ PSUBSB,
+ PSUBSW,
+ PSUBUSB,
+ PSUBUSW,
+ PSUBW,
+ PUNPCKHBW,
+ PUNPCKHDQ,
+ PUNPCKHWD,
+ PUNPCKLBW,
+ PUNPCKLDQ,
+ PUNPCKLWD,
+ PUNPCKLQDQ,
+ PUNPCKHQDQ,
+ PXOR,
+ RCPPS,
+ RSM,
+ RSQRTPS,
+ SHLD,
+ SHUFPD,
+ SHUFPS,
+ SLHD,
+ SQRTPS,
+ SQRTPD,
+ SUBPS,
+ SUBPD,
+ SYSENTER,
+ SYSEXIT,
+ UCOMISD,
+ UCOMISS,
+ VMREAD,
+ VMWRITE,
+ XORPS,
+ XORPD,
+
+ VMOVDDUP,
+ VPSHUFLW,
+ VPSHUFHW,
+ VHADDPS,
+ VHSUBPS,
+ VADDSUBPS,
+ VCVTPD2DQ,
+ VLDDQU,
+
+ VCOMISD,
+ VCOMISS,
+ VUCOMISD,
+ VUCOMISS,
+ VADDPD,
+ VADDPS,
+ VADDSD,
+ VADDSS,
+ VADDSUBPD,
+ VAESDEC,
+ VAESDECLAST,
+ VAESENC,
+ VAESENCLAST,
+ VAESIMC,
+ VAESKEYGENASSIST,
+ VBLENDPD,
+ VBLENDPS,
+ VBLENDVPD,
+ VBLENDVPS,
+ VBROADCASTF128,
+ VBROADCASTI128,
+ VBROADCASTSD,
+ VBROADCASTSS,
+ VCMPSD,
+ VCMPSS,
+ VCMPPD,
+ VCMPPS,
+ VCVTDQ2PD,
+ VCVTDQ2PS,
+ VCVTPD2PS,
+ VCVTPH2PS,
+ VCVTPS2DQ,
+ VCVTPS2PD,
+ VCVTSS2SD,
+ VCVTSI2SS,
+ VCVTSI2SD,
+ VCVTSD2SI,
+ VCVTSD2SS,
+ VCVTPS2PH,
+ VCVTSS2SI,
+ VCVTTPD2DQ,
+ VCVTTPS2DQ,
+ VCVTTSS2SI,
+ VCVTTSD2SI,
+ VDIVPD,
+ VDIVPS,
+ VDIVSD,
+ VDIVSS,
+ VDPPD,
+ VDPPS,
+ VEXTRACTF128,
+ VEXTRACTI128,
+ VEXTRACTPS,
+ VFMADD132PD,
+ VFMADD132PS,
+ VFMADD132SD,
+ VFMADD132SS,
+ VFMADD213PD,
+ VFMADD213PS,
+ VFMADD213SD,
+ VFMADD213SS,
+ VFMADD231PD,
+ VFMADD231PS,
+ VFMADD231SD,
+ VFMADD231SS,
+ VFMADDSUB132PD,
+ VFMADDSUB132PS,
+ VFMADDSUB213PD,
+ VFMADDSUB213PS,
+ VFMADDSUB231PD,
+ VFMADDSUB231PS,
+ VFMSUB132PD,
+ VFMSUB132PS,
+ VFMSUB132SD,
+ VFMSUB132SS,
+ VFMSUB213PD,
+ VFMSUB213PS,
+ VFMSUB213SD,
+ VFMSUB213SS,
+ VFMSUB231PD,
+ VFMSUB231PS,
+ VFMSUB231SD,
+ VFMSUB231SS,
+ VFMSUBADD132PD,
+ VFMSUBADD132PS,
+ VFMSUBADD213PD,
+ VFMSUBADD213PS,
+ VFMSUBADD231PD,
+ VFMSUBADD231PS,
+ VFNMADD132PD,
+ VFNMADD132PS,
+ VFNMADD132SD,
+ VFNMADD132SS,
+ VFNMADD213PD,
+ VFNMADD213PS,
+ VFNMADD213SD,
+ VFNMADD213SS,
+ VFNMADD231PD,
+ VFNMADD231PS,
+ VFNMADD231SD,
+ VFNMADD231SS,
+ VFNMSUB132PD,
+ VFNMSUB132PS,
+ VFNMSUB132SD,
+ VFNMSUB132SS,
+ VFNMSUB213PD,
+ VFNMSUB213PS,
+ VFNMSUB213SD,
+ VFNMSUB213SS,
+ VFNMSUB231PD,
+ VFNMSUB231PS,
+ VFNMSUB231SD,
+ VFNMSUB231SS,
+ VGATHERDPD,
+ VGATHERDPS,
+ VGATHERQPD,
+ VGATHERQPS,
+ VHADDPD,
+ VHSUBPD,
+ VINSERTF128,
+ VINSERTI128,
+ VINSERTPS,
+ VMASKMOVDQU,
+ VMASKMOVPD,
+ VMASKMOVPS,
+ VMAXPD,
+ VMAXPS,
+ VMAXSD,
+ VMAXSS,
+ VMINPD,
+ VMINPS,
+ VMINSD,
+ VMINSS,
+ VMOVAPD,
+ VMOVAPS,
+ VMOVD,
+ VMOVDQA,
+ VMOVDQU,
+ VMOVHLPS,
+ VMOVHPD,
+ VMOVHPS,
+ VMOVLHPS,
+ VMOVLPD,
+ VMOVLPS,
+ VMOVMSKPD,
+ VMOVMSKPS,
+ VMOVNTDQ,
+ VMOVNTDQA,
+ VMOVNTPD,
+ VMOVNTPS,
+ VMOVQ,
+ VMOVSS,
+ VMOVSD,
+ VMOVSHDUP,
+ VMOVSLDUP,
+ VMOVUPD,
+ VMOVUPS,
+ VMPSADBW,
+ VMULPD,
+ VMULPS,
+ VMULSD,
+ VMULSS,
+ VPABSB,
+ VPABSD,
+ VPABSW,
+ VPACKSSDW,
+ VPACKUSDW,
+ VPACKSSWB,
+ VPACKUSWB,
+ VPADDB,
+ VPADDD,
+ VPADDQ,
+ VPADDSB,
+ VPADDSW,
+ VPADDUSB,
+ VPADDUSW,
+ VPADDW,
+ VPALIGNR,
+ VANDPD,
+ VANDPS,
+ VORPD,
+ VORPS,
+ VANDNPD,
+ VANDNPS,
+ VPAND,
+ VPANDN,
+ VPAVGB,
+ VPAVGW,
+ VPBLENDD,
+ VPBLENDVB,
+ VPBLENDW,
+ VPBROADCASTB,
+ VPBROADCASTD,
+ VPBROADCASTQ,
+ VPBROADCASTW,
+ VPCLMULQDQ,
+ VPCMPEQB,
+ VPCMPEQD,
+ VPCMPEQQ,
+ VPCMPEQW,
+ VPCMPGTB,
+ VPCMPGTD,
+ VPCMPGTQ,
+ VPCMPGTW,
+ VPCMPESTRI,
+ VPCMPESTRM,
+ VPCMPISTRI,
+ VPCMPISTRM,
+ VPERM2F128,
+ VPERM2I128,
+ VPERMD,
+ VPERMILPD,
+ VPERMILPS,
+ VPERMPD,
+ VPERMPS,
+ VPERMQ,
+ VPEXTRB,
+ VPEXTRD,
+ VPEXTRQ,
+ VPEXTRW,
+ VPGATHERDD,
+ VPGATHERDQ,
+ VPGATHERQD,
+ VPGATHERQQ,
+ VPHADDD,
+ VPHADDSW,
+ VPHADDW,
+ VPMADDUBSW,
+ VPHMINPOSUW,
+ VPHSUBD,
+ VPHSUBSW,
+ VPHSUBW,
+ VPINSRB,
+ VPINSRD,
+ VPINSRQ,
+ VPINSRW,
+ VPMADDWD,
+ VPMASKMOVD,
+ VPMASKMOVQ,
+ VPMAXSB,
+ VPMAXSD,
+ VPMAXSW,
+ VPMAXUB,
+ VPMAXUW,
+ VPMAXUD,
+ VPMINSB,
+ VPMINSW,
+ VPMINSD,
+ VPMINUB,
+ VPMINUW,
+ VPMINUD,
+ VPMOVMSKB,
+ VPMOVSXBD,
+ VPMOVSXBQ,
+ VPMOVSXBW,
+ VPMOVSXDQ,
+ VPMOVSXWD,
+ VPMOVSXWQ,
+ VPMOVZXBD,
+ VPMOVZXBQ,
+ VPMOVZXBW,
+ VPMOVZXDQ,
+ VPMOVZXWD,
+ VPMOVZXWQ,
+ VPMULDQ,
+ VPMULHRSW,
+ VPMULHUW,
+ VPMULHW,
+ VPMULLQ,
+ VPMULLD,
+ VPMULLW,
+ VPMULUDQ,
+ VPOR,
+ VPSADBW,
+ VPSHUFB,
+ VPSHUFD,
+ VPSIGNB,
+ VPSIGND,
+ VPSIGNW,
+ VPSLLD,
+ VPSLLDQ,
+ VPSLLQ,
+ VPSLLVD,
+ VPSLLVQ,
+ VPSLLW,
+ VPSRAD,
+ VPSRAVD,
+ VPSRAW,
+ VPSRLD,
+ VPSRLDQ,
+ VPSRLQ,
+ VPSRLVD,
+ VPSRLVQ,
+ VPSRLW,
+ VPSUBB,
+ VPSUBD,
+ VPSUBQ,
+ VPSUBSB,
+ VPSUBSW,
+ VPSUBUSB,
+ VPSUBUSW,
+ VPSUBW,
+ VPTEST,
+ VPUNPCKHBW,
+ VPUNPCKHDQ,
+ VPUNPCKHQDQ,
+ VPUNPCKHWD,
+ VPUNPCKLBW,
+ VPUNPCKLDQ,
+ VPUNPCKLQDQ,
+ VPUNPCKLWD,
+ VPXOR,
+ VRCPPS,
+ VROUNDPD,
+ VROUNDPS,
+ VROUNDSD,
+ VROUNDSS,
+ VRSQRTPS,
+ VRSQRTSS,
+ VRCPSS,
+ VSHUFPD,
+ VSHUFPS,
+ VSQRTPD,
+ VSQRTPS,
+ VSQRTSS,
+ VSQRTSD,
+ VSUBPD,
+ VSUBPS,
+ VSUBSD,
+ VSUBSS,
+ VTESTPD,
+ VTESTPS,
+ VUNPCKHPD,
+ VUNPCKHPS,
+ VUNPCKLPD,
+ VUNPCKLPS,
+ VXORPD,
+ VXORPS,
+ VZEROUPPER,
+ VZEROALL,
+ VLDMXCSR,
+ VSTMXCSR,
+
+ PCLMULQDQ,
+ AESKEYGENASSIST,
+ AESIMC,
+ AESENC,
+ AESENCLAST,
+ AESDEC,
+ AESDECLAST,
+ PCMPGTQ,
+ PCMPISTRM,
+ PCMPISTRI,
+ PCMPESTRI,
+ PACKUSDW,
+ PCMPESTRM,
+ PCMPEQQ,
+ PTEST,
+ PHMINPOSUW,
+ DPPS,
+ DPPD,
+ MPSADBW,
+ PMOVZXDQ,
+ PMOVSXDQ,
+ PMOVZXBD,
+ PMOVSXBD,
+ PMOVZXWQ,
+ PMOVSXWQ,
+ PMOVZXBQ,
+ PMOVSXBQ,
+ PMOVSXWD,
+ PMOVZXWD,
+ PEXTRQ,
+ PEXTRD,
+ PEXTRW,
+ PEXTRB,
+ PMOVSXBW,
+ PMOVZXBW,
+ PINSRQ,
+ PINSRD,
+ PINSRB,
+ EXTRACTPS,
+ INSERTPS,
+ ROUNDSS,
+ ROUNDSD,
+ ROUNDPS,
+ ROUNDPD,
+ PMAXSB,
+ PMAXSD,
+ PMAXUW,
+ PMAXUD,
+ PMINSD,
+ PMINSB,
+ PMINUD,
+ PMINUW,
+ BLENDW,
+ PBLENDVB,
+ PBLENDW,
+ BLENDVPS,
+ BLENDVPD,
+ BLENDPS,
+ BLENDPD,
+ PMULDQ,
+ MOVNTDQA,
+ PMULLD,
+ PALIGNR,
+ PSIGNW,
+ PSIGND,
+ PSIGNB,
+ PSHUFB,
+ PMULHRSW,
+ PMADDUBSW,
+ PABSD,
+ PABSW,
+ PABSB,
+ PHSUBSW,
+ PHSUBW,
+ PHSUBD,
+ PHADDD,
+ PHADDSW,
+ PHADDW,
+ HSUBPD,
+ HADDPD,
+
+ SHA1RNDS4,
+ SHA1NEXTE,
+ SHA1MSG1,
+ SHA1MSG2,
+ SHA256RNDS2,
+ SHA256MSG1,
+ SHA256MSG2,
+
+ LZCNT,
+ CLGI,
+ STGI,
+ SKINIT,
+ VMLOAD,
+ VMMCALL,
+ VMSAVE,
+ VMRUN,
+ INVLPGA,
+ INVLPGB,
+ TLBSYNC,
+
+ MOVBE,
+
+ ADCX,
+ ADOX,
+
+ PREFETCHW,
+
+ RDPID,
+ CMPXCHG8B,
+ CMPXCHG16B,
+ VMPTRLD,
+ VMPTRST,
+
+ BZHI,
+ MULX,
+ SHLX,
+ SHRX,
+ SARX,
+ PDEP,
+ PEXT,
+ RORX,
+ XRSTORS,
+ XRSTORS64,
+ XSAVEC,
+ XSAVEC64,
+ XSAVES,
+ XSAVES64,
+
+ RDFSBASE,
+ RDGSBASE,
+ WRFSBASE,
+ WRGSBASE,
+
+ CRC32,
+ SALC,
+ XLAT,
+
+ F2XM1,
+ FABS,
+ FADD,
+ FADDP,
+ FBLD,
+ FBSTP,
+ FCHS,
+ FCMOVB,
+ FCMOVBE,
+ FCMOVE,
+ FCMOVNB,
+ FCMOVNBE,
+ FCMOVNE,
+ FCMOVNU,
+ FCMOVU,
+ FCOM,
+ FCOMI,
+ FCOMIP,
+ FCOMP,
+ FCOMPP,
+ FCOS,
+ FDECSTP,
+ FDISI8087_NOP,
+ FDIV,
+ FDIVP,
+ FDIVR,
+ FDIVRP,
+ FENI8087_NOP,
+ FFREE,
+ FFREEP,
+ FIADD,
+ FICOM,
+ FICOMP,
+ FIDIV,
+ FIDIVR,
+ FILD,
+ FIMUL,
+ FINCSTP,
+ FIST,
+ FISTP,
+ FISTTP,
+ FISUB,
+ FISUBR,
+ FLD,
+ FLD1,
+ FLDCW,
+ FLDENV,
+ FLDL2E,
+ FLDL2T,
+ FLDLG2,
+ FLDLN2,
+ FLDPI,
+ FLDZ,
+ FMUL,
+ FMULP,
+ FNCLEX,
+ FNINIT,
+ FNOP,
+ FNSAVE,
+ FNSTCW,
+ FNSTENV,
+ FNSTOR,
+ FNSTSW,
+ FPATAN,
+ FPREM,
+ FPREM1,
+ FPTAN,
+ FRNDINT,
+ FRSTOR,
+ FSCALE,
+ FSETPM287_NOP,
+ FSIN,
+ FSINCOS,
+ FSQRT,
+ FST,
+ FSTP,
+ FSTPNCE,
+ FSUB,
+ FSUBP,
+ FSUBR,
+ FSUBRP,
+ FTST,
+ FUCOM,
+ FUCOMI,
+ FUCOMIP,
+ FUCOMP,
+ FUCOMPP,
+ FXAM,
+ FXCH,
+ FXTRACT,
+ FYL2X,
+ FYL2XP1,
+
+ LOOPNZ,
+ LOOPZ,
+ LOOP,
+ JCXZ,
+
+ PUSHA,
+ POPA,
+ BOUND,
+ ARPL,
+ AAS,
+ AAA,
+ DAS,
+ DAA,
+ AAM,
+ AAD,
+
+ // started shipping in Tremont, 2020 sept 23
+ MOVDIR64B,
+ MOVDIRI,
+
+ // started shipping in Tiger Lake, 2020 sept 2
+ AESDEC128KL,
+ AESDEC256KL,
+ AESDECWIDE128KL,
+ AESDECWIDE256KL,
+ AESENC128KL,
+ AESENC256KL,
+ AESENCWIDE128KL,
+ AESENCWIDE256KL,
+ ENCODEKEY128,
+ ENCODEKEY256,
+ LOADIWKEY,
+
+ // unsure
+ HRESET,
+
+ // 3dnow
+ FEMMS,
+ PI2FW,
+ PI2FD,
+ PF2IW,
+ PF2ID,
+ PMULHRW,
+ PFCMPGE,
+ PFMIN,
+ PFRCP,
+ PFRSQRT,
+ PFSUB,
+ PFADD,
+ PFCMPGT,
+ PFMAX,
+ PFRCPIT1,
+ PFRSQIT1,
+ PFSUBR,
+ PFACC,
+ PFCMPEQ,
+ PFMUL,
+ PFMULHRW,
+ PFRCPIT2,
+ PFNACC,
+ PFPNACC,
+ PSWAPD,
+ PAVGUSB,
+
+ // ENQCMD
+ ENQCMD,
+ ENQCMDS,
+
+ // INVPCID
+ INVEPT,
+ INVVPID,
+ INVPCID,
+
+ // PTWRITE
+ PTWRITE,
+
+ // GFNI
+ GF2P8AFFINEQB,
+ GF2P8AFFINEINVQB,
+ GF2P8MULB,
+
+ // CET
+ WRUSS,
+ WRSS,
+ INCSSP,
+ SAVEPREVSSP,
+ SETSSBSY,
+ CLRSSBSY,
+ RSTORSSP,
+
+ // TDX
+ TDCALL,
+ SEAMRET,
+ SEAMOPS,
+ SEAMCALL,
+
+ // WAITPKG
+ TPAUSE,
+ UMONITOR,
+ UMWAIT,
+
+ // UINTR
+ UIRET,
+ TESTUI,
+ CLUI,
+ STUI,
+ SENDUIPI,
+
+ // TSXLDTRK
+ XSUSLDTRK,
+ XRESLDTRK,
+
+ // AVX512F
+ VALIGND,
+ VALIGNQ,
+ VBLENDMPD,
+ VBLENDMPS,
+ VCOMPRESSPD,
+ VCOMPRESSPS,
+ VCVTPD2UDQ,
+ VCVTTPD2UDQ,
+ VCVTPS2UDQ,
+ VCVTTPS2UDQ,
+ VCVTQQ2PD,
+ VCVTQQ2PS,
+ VCVTSD2USI,
+ VCVTTSD2USI,
+ VCVTSS2USI,
+ VCVTTSS2USI,
+ VCVTUDQ2PD,
+ VCVTUDQ2PS,
+ VCVTUSI2USD,
+ VCVTUSI2USS,
+ VEXPANDPD,
+ VEXPANDPS,
+ VEXTRACTF32X4,
+ VEXTRACTF64X4,
+ VEXTRACTI32X4,
+ VEXTRACTI64X4,
+ VFIXUPIMMPD,
+ VFIXUPIMMPS,
+ VFIXUPIMMSD,
+ VFIXUPIMMSS,
+ VGETEXPPD,
+ VGETEXPPS,
+ VGETEXPSD,
+ VGETEXPSS,
+ VGETMANTPD,
+ VGETMANTPS,
+ VGETMANTSD,
+ VGETMANTSS,
+ VINSERTF32X4,
+ VINSERTF64X4,
+ VINSERTI64X4,
+ VMOVDQA32,
+ VMOVDQA64,
+ VMOVDQU32,
+ VMOVDQU64,
+ VPBLENDMD,
+ VPBLENDMQ,
+ VPCMPD,
+ VPCMPUD,
+ VPCMPQ,
+ VPCMPUQ,
+ VPCOMPRESSQ,
+ VPCOMPRESSD,
+ VPERMI2D,
+ VPERMI2Q,
+ VPERMI2PD,
+ VPERMI2PS,
+ VPERMT2D,
+ VPERMT2Q,
+ VPERMT2PD,
+ VPERMT2PS,
+ VPMAXSQ,
+ VPMAXUQ,
+ VPMINSQ,
+ VPMINUQ,
+ VPMOVSQB,
+ VPMOVUSQB,
+ VPMOVSQW,
+ VPMOVUSQW,
+ VPMOVSQD,
+ VPMOVUSQD,
+ VPMOVSDB,
+ VPMOVUSDB,
+ VPMOVSDW,
+ VPMOVUSDW,
+ VPROLD,
+ VPROLQ,
+ VPROLVD,
+ VPROLVQ,
+ VPRORD,
+ VPRORQ,
+ VPRORRD,
+ VPRORRQ,
+ VPSCATTERDD,
+ VPSCATTERDQ,
+ VPSCATTERQD,
+ VPSCATTERQQ,
+ VPSRAQ,
+ VPSRAVQ,
+ VPTESTNMD,
+ VPTESTNMQ,
+ VPTERNLOGD,
+ VPTERNLOGQ,
+ VPTESTMD,
+ VPTESTMQ,
+ VRCP14PD,
+ VRCP14PS,
+ VRCP14SD,
+ VRCP14SS,
+ VRNDSCALEPD,
+ VRNDSCALEPS,
+ VRNDSCALESD,
+ VRNDSCALESS,
+ VRSQRT14PD,
+ VRSQRT14PS,
+ VRSQRT14SD,
+ VRSQRT14SS,
+ VSCALEDPD,
+ VSCALEDPS,
+ VSCALEDSD,
+ VSCALEDSS,
+ VSCATTERDD,
+ VSCATTERDQ,
+ VSCATTERQD,
+ VSCATTERQQ,
+ VSHUFF32X4,
+ VSHUFF64X2,
+ VSHUFI32X4,
+ VSHUFI64X2,
+
+ // AVX512DQ
+ VCVTTPD2QQ,
+ VCVTPD2QQ,
+ VCVTTPD2UQQ,
+ VCVTPD2UQQ,
+ VCVTTPS2QQ,
+ VCVTPS2QQ,
+ VCVTTPS2UQQ,
+ VCVTPS2UQQ,
+ VCVTUQQ2PD,
+ VCVTUQQ2PS,
+ VEXTRACTF64X2,
+ VEXTRACTI64X2,
+ VFPCLASSPD,
+ VFPCLASSPS,
+ VFPCLASSSD,
+ VFPCLASSSS,
+ VINSERTF64X2,
+ VINSERTI64X2,
+ VPMOVM2D,
+ VPMOVM2Q,
+ VPMOVB2D,
+ VPMOVQ2M,
+ VRANGEPD,
+ VRANGEPS,
+ VRANGESD,
+ VRANGESS,
+ VREDUCEPD,
+ VREDUCEPS,
+ VREDUCESD,
+ VREDUCESS,
+
+ // AVX512BW
+ VDBPSADBW,
+ VMOVDQU8,
+ VMOVDQU16,
+ VPBLENDMB,
+ VPBLENDMW,
+ VPCMPB,
+ VPCMPUB,
+ VPCMPW,
+ VPCMPUW,
+ VPERMW,
+ VPERMI2B,
+ VPERMI2W,
+ VPMOVM2B,
+ VPMOVM2W,
+ VPMOVB2M,
+ VPMOVW2M,
+ VPMOVSWB,
+ VPMOVUSWB,
+ VPSLLVW,
+ VPSRAVW,
+ VPSRLVW,
+ VPTESTNMB,
+ VPTESTNMW,
+ VPTESTMB,
+ VPTESTMW,
+
+ // AVX512CD
+ VPBROADCASTM,
+ VPCONFLICTD,
+ VPCONFLICTQ,
+ VPLZCNTD,
+ VPLZCNTQ,
+
+ KUNPCKBW,
+ KUNPCKWD,
+ KUNPCKDQ,
+
+ KADDB,
+ KANDB,
+ KANDNB,
+ KMOVB,
+ KNOTB,
+ KORB,
+ KORTESTB,
+ KSHIFTLB,
+ KSHIFTRB,
+ KTESTB,
+ KXNORB,
+ KXORB,
+ KADDW,
+ KANDW,
+ KANDNW,
+ KMOVW,
+ KNOTW,
+ KORW,
+ KORTESTW,
+ KSHIFTLW,
+ KSHIFTRW,
+ KTESTW,
+ KXNORW,
+ KXORW,
+ KADDD,
+ KANDD,
+ KANDND,
+ KMOVD,
+ KNOTD,
+ KORD,
+ KORTESTD,
+ KSHIFTLD,
+ KSHIFTRD,
+ KTESTD,
+ KXNORD,
+ KXORD,
+ KADDQ,
+ KANDQ,
+ KANDNQ,
+ KMOVQ,
+ KNOTQ,
+ KORQ,
+ KORTESTQ,
+ KSHIFTLQ,
+ KSHIFTRQ,
+ KTESTQ,
+ KXNORQ,
+ KXORQ,
+
+ // AVX512ER
+ VEXP2PD,
+ VEXP2PS,
+ VEXP2SD,
+ VEXP2SS,
+ VRCP28PD,
+ VRCP28PS,
+ VRCP28SD,
+ VRCP28SS,
+ VRSQRT28PD,
+ VRSQRT28PS,
+ VRSQRT28SD,
+ VRSQRT28SS,
+
+ // AVX512PF
+ VGATHERPF0DPD,
+ VGATHERPF0DPS,
+ VGATHERPF0QPD,
+ VGATHERPF0QPS,
+ VGATHERPF1DPD,
+ VGATHERPF1DPS,
+ VGATHERPF1QPD,
+ VGATHERPF1QPS,
+ VSCATTERPF0DPD,
+ VSCATTERPF0DPS,
+ VSCATTERPF0QPD,
+ VSCATTERPF0QPS,
+ VSCATTERPF1DPD,
+ VSCATTERPF1DPS,
+ VSCATTERPF1QPD,
+ VSCATTERPF1QPS,
+
+ // MPX
+ BNDMK,
+ BNDCL,
+ BNDCU,
+ BNDCN,
+ BNDMOV,
+ BNDLDX,
+ BNDSTX,
+
+ VGF2P8AFFINEQB,
+ VGF2P8AFFINEINVQB,
+ VPSHRDQ,
+ VPSHRDD,
+ VPSHRDW,
+ VPSHLDQ,
+ VPSHLDD,
+ VPSHLDW,
+ VBROADCASTF32X8,
+ VBROADCASTF64X4,
+ VBROADCASTF32X4,
+ VBROADCASTF64X2,
+ VBROADCASTF32X2,
+ VBROADCASTI32X8,
+ VBROADCASTI64X4,
+ VBROADCASTI32X4,
+ VBROADCASTI64X2,
+ VBROADCASTI32X2,
+ VEXTRACTI32X8,
+ VEXTRACTF32X8,
+ VINSERTI32X8,
+ VINSERTF32X8,
+ VINSERTI32X4,
+ V4FNMADDSS,
+ V4FNMADDPS,
+ VCVTNEPS2BF16,
+ V4FMADDSS,
+ V4FMADDPS,
+ VCVTNE2PS2BF16,
+ VP2INTERSECTD,
+ VP2INTERSECTQ,
+ VP4DPWSSDS,
+ VP4DPWSSD,
+ VPDPWSSDS,
+ VPDPWSSD,
+ VPDPBUSDS,
+ VDPBF16PS,
+ VPBROADCASTMW2D,
+ VPBROADCASTMB2Q,
+ VPMOVD2M,
+ VPMOVQD,
+ VPMOVWB,
+ VPMOVDB,
+ VPMOVDW,
+ VPMOVQB,
+ VPMOVQW,
+ VGF2P8MULB,
+ VPMADD52HUQ,
+ VPMADD52LUQ,
+ VPSHUFBITQMB,
+ VPERMB,
+ VPEXPANDD,
+ VPEXPANDQ,
+ VPABSQ,
+ VPRORVD,
+ VPRORVQ,
+ VPMULTISHIFTQB,
+ VPERMT2B,
+ VPERMT2W,
+ VPSHRDVQ,
+ VPSHRDVD,
+ VPSHRDVW,
+ VPSHLDVQ,
+ VPSHLDVD,
+ VPSHLDVW,
+ VPCOMPRESSB,
+ VPCOMPRESSW,
+ VPEXPANDB,
+ VPEXPANDW,
+ VPOPCNTD,
+ VPOPCNTQ,
+ VPOPCNTB,
+ VPOPCNTW,
+ VSCALEFSS,
+ VSCALEFSD,
+ VSCALEFPS,
+ VSCALEFPD,
+ VPDPBUSD,
+ VCVTUSI2SD,
+ VCVTUSI2SS,
+ VPXORD,
+ VPXORQ,
+ VPORD,
+ VPORQ,
+ VPANDND,
+ VPANDNQ,
+ VPANDD,
+ VPANDQ,
+
+ PSMASH,
+ PVALIDATE,
+ RMPADJUST,
+ RMPUPDATE,
+}
+
+impl PartialEq for Instruction {
+ fn eq(&self, other: &Self) -> bool {
+ if self.prefixes != other.prefixes {
+ return false;
+ }
+
+ if self.opcode != other.opcode {
+ return false;
+ }
+
+ if self.operand_count != other.operand_count {
+ return false;
+ }
+
+ if self.mem_size != other.mem_size {
+ return false;
+ }
+
+ for i in 0..self.operand_count {
+ if self.operands[i as usize] != other.operands[i as usize] {
+ return false;
+ }
+
+ if self.operand(i) != other.operand(i) {
+ return false;
+ }
+ }
+
+ true
+ }
+}
+
+/// an `x86` instruction.
+///
+/// typically an opcode will be inspected by [`Instruction::opcode()`], and an instruction has
+/// [`Instruction::operand_count()`] many operands. operands are provided by
+/// [`Instruction::operand()`].
+#[derive(Debug, Clone, Copy, Eq)]
+pub struct Instruction {
+ pub prefixes: Prefixes,
+ /*
+ modrm_rrr: RegSpec,
+ modrm_mmm: RegSpec, // doubles as sib_base
+ sib_index: RegSpec,
+ vex_reg: RegSpec,
+ */
+ regs: [RegSpec; 4],
+ scale: u8,
+ length: u8,
+ operand_count: u8,
+ operands: [OperandSpec; 4],
+ imm: u32,
+ disp: u32,
+ opcode: Opcode,
+ mem_size: u8,
+}
+
+impl yaxpeax_arch::Instruction for Instruction {
+ fn well_defined(&self) -> bool {
+ // TODO: this is incorrect!
+ true
+ }
+}
+
+#[derive(Debug, PartialEq, Eq, Copy, Clone)]
+#[non_exhaustive]
+pub enum DecodeError {
+ ExhaustedInput,
+ InvalidOpcode,
+ InvalidOperand,
+ InvalidPrefixes,
+ TooLong,
+ IncompleteDecoder,
+}
+
+impl yaxpeax_arch::DecodeError for DecodeError {
+ fn data_exhausted(&self) -> bool { self == &DecodeError::ExhaustedInput }
+ fn bad_opcode(&self) -> bool { self == &DecodeError::InvalidOpcode }
+ fn bad_operand(&self) -> bool { self == &DecodeError::InvalidOperand }
+ fn description(&self) -> &'static str {
+ match self {
+ DecodeError::ExhaustedInput => { "exhausted input" },
+ DecodeError::InvalidOpcode => { "invalid opcode" },
+ DecodeError::InvalidOperand => { "invalid operand" },
+ DecodeError::InvalidPrefixes => { "invalid prefixes" },
+ DecodeError::TooLong => { "too long" },
+ DecodeError::IncompleteDecoder => { "the decoder is incomplete" },
+ }
+ }
+}
+
+#[allow(non_camel_case_types)]
+#[derive(Debug, Copy, Clone, Eq, PartialEq)]
+enum OperandSpec {
+ Nothing,
+ // the register in modrm_rrr
+ RegRRR,
+ // the register in modrm_rrr and is EVEX-encoded (may have a mask register, is merged or
+ // zeroed)
+ RegRRR_maskmerge,
+ // the register in modrm_rrr and is EVEX-encoded (may have a mask register, is merged or
+ // zeroed). additionally, this instruction has exceptions suppressed with a potentially
+ // custom rounding mode.
+ RegRRR_maskmerge_sae,
+ // the register in modrm_rrr and is EVEX-encoded (may have a mask register, is merged or
+ // zeroed). additionally, this instruction has exceptions suppressed.
+ RegRRR_maskmerge_sae_noround,
+ // the register in modrm_mmm (eg modrm mod bits were 11)
+ RegMMM,
+ // same as `RegRRR`: the register is modrm's `mmm` bits, and may be masekd.
+ RegMMM_maskmerge,
+ RegMMM_maskmerge_sae_noround,
+ // the register selected by vex-vvvv bits
+ RegVex,
+ RegVex_maskmerge,
+ // the register selected by a handful of avx2 vex-coded instructions,
+ // stuffed in imm4.
+ Reg4,
+ ImmI8,
+ ImmI16,
+ ImmI32,
+ ImmU8,
+ ImmU16,
+ // ENTER is a two-immediate instruction, where the first immediate is stored in the disp field.
+ // for this case, a second immediate-style operand is needed.
+ // turns out `insertq` and `extrq` are also two-immediate instructions, so this is generalized
+ // to cover them too.
+ ImmInDispField,
+ DispU16,
+ DispU32,
+ Deref,
+ Deref_si,
+ Deref_di,
+ Deref_esi,
+ Deref_edi,
+ RegDisp,
+ RegScale,
+ RegIndexBase,
+ RegIndexBaseDisp,
+ RegScaleDisp,
+ RegIndexBaseScale,
+ RegIndexBaseScaleDisp,
+ Deref_mask,
+ RegDisp_mask,
+ RegScale_mask,
+ RegScaleDisp_mask,
+ RegIndexBase_mask,
+ RegIndexBaseDisp_mask,
+ RegIndexBaseScale_mask,
+ RegIndexBaseScaleDisp_mask,
+}
+
+// the Hash, Eq, and PartialEq impls here are possibly misleading.
+// They exist because downstream some structs are spelled like
+// Foo<T> for T == x86. This is only to access associated types
+// which themselves are bounded, but their #[derive] require T to
+// implement these traits.
+/// a trivial struct for `yaxpeax_arch::Arch` to be implemented on. it's only interesting for the
+/// associated type parameters.
+#[cfg_attr(feature="use-serde", derive(Serialize, Deserialize))]
+#[derive(Hash, Eq, PartialEq, Debug, Copy, Clone)]
+#[allow(non_camel_case_types)]
+pub struct Arch;
+
+impl yaxpeax_arch::Arch for Arch {
+ type Address = u32;
+ type Word = u8;
+ type Instruction = Instruction;
+ type DecodeError = DecodeError;
+ type Decoder = InstDecoder;
+ type Operand = Operand;
+}
+
+impl LengthedInstruction for Instruction {
+ type Unit = AddressDiff<u32>;
+ #[inline]
+ fn len(&self) -> Self::Unit {
+ AddressDiff::from_const(self.length.into())
+ }
+ #[inline]
+ fn min_size() -> Self::Unit {
+ AddressDiff::from_const(1)
+ }
+}
+
+/// an `x86` instruction decoder.
+///
+/// fundamentally this is one or two primitives with no additional state kept during decoding. it
+/// can be copied cheaply, hashed cheaply, compared cheaply. if you really want to share an
+/// `InstDecoder` between threads, you could - but you might want to clone it instead.
+///
+/// unless you're using an `Arc<Mutex<InstDecoder>>`, which is _fine_ but i'd be very curious about
+/// the design requiring that.
+#[derive(PartialEq, Copy, Clone, Eq, Hash, PartialOrd, Ord)]
+pub struct InstDecoder {
+ // extensions tracked here:
+ // 0. SSE3
+ // 1. SSSE3
+ // 2. monitor (intel-only?)
+ // 3. vmx (some atom chips still lack it)
+ // 4. fma3 (intel haswell/broadwell+, amd piledriver+)
+ // 5. cmpxchg16b (some amd are missing this one)
+ // 6. sse4.1
+ // 7. sse4.2
+ // 8. movbe
+ // 9. popcnt (independent of BMI)
+ // 10. aesni
+ // 11. xsave (xsave, xrestor, xsetbv, xgetbv)
+ // 12. rdrand (intel ivybridge+, amd ..??)
+ // 13. sgx (eadd, eblock, ecreate, edbgrd, edbgwr, einit, eldb, eldu, epa, eremove, etrace,
+ // ewb, eenter, eexit, egetkey, ereport, eresume)
+ // 14. bmi1 (intel haswell+, amd jaguar+)
+ // 15. avx2 (intel haswell+, amd excavator+)
+ // 16. bmi2 (intel ?, amd ?)
+ // 17. invpcid
+ // 18. mpx
+ // 19. avx512_f
+ // 20. avx512_dq
+ // 21. rdseed
+ // 22. adx
+ // 23. avx512_fma
+ // 24. pcommit
+ // 25. clflushopt
+ // 26. clwb
+ // 27. avx512_pf
+ // 28. avx512_er
+ // 29. avx512_cd
+ // 30. sha
+ // 31. avx512_bw
+ // 32. avx512_vl
+ // 33. prefetchwt1
+ // 34. avx512_vbmi
+ // 35. avx512_vbmi2
+ // 36. gfni (galois field instructions)
+ // 37. vaes
+ // 38. pclmulqdq
+ // 39. avx_vnni
+ // 40. avx512_bitalg
+ // 41. avx512_vpopcntdq
+ // 42. avx512_4vnniw
+ // 43. avx512_4fmaps
+ // 44. cx8 // cmpxchg8 - is this actually optional in x86?
+ // 45. syscall // syscall/sysret - actually optional in x86?
+ // 46. rdtscp // actually optional in x86?
+ // 47. abm (lzcnt, popcnt)
+ // 48. sse4a
+ // 49. 3dnowprefetch // actually optional?
+ // 50. xop
+ // 51. skinit
+ // 52. tbm
+ // 53. intel quirks
+ // 54. amd quirks
+ // 55. avx (intel ?, amd ?)
+ // 56. amd-v/svm
+ // 57. lahfsahf
+ // 58. cmov
+ // 59. f16c
+ // 60. fma4
+ // 61. prefetchw
+ // 62. tsx
+ // 63. lzcnt
+ flags: u64,
+}
+
+impl InstDecoder {
+ /// instantiates an x86 decoder that decodes the bare minimum of real-mode x86.
+ ///
+ /// pedantic and only decodes what the spec says is well-defined, rejecting undefined sequences
+ /// and any instructions defined by extensions.
+ pub fn minimal() -> Self {
+ InstDecoder {
+ flags: 0,
+ }
+ }
+
+ /// helper to decode an instruction directly from a byte slice.
+ ///
+ /// this lets callers avoid the work of setting up a [`yaxpeax_arch::U8Reader`] for the slice
+ /// to decode.
+ pub fn decode_slice(&self, data: &[u8]) -> Result<Instruction, DecodeError> {
+ let mut reader = yaxpeax_arch::U8Reader::new(data);
+ self.decode(&mut reader)
+ }
+
+ pub fn sse3(&self) -> bool {
+ self.flags & (1 << 0) != 0
+ }
+
+ pub fn with_sse3(mut self) -> Self {
+ self.flags |= 1 << 0;
+ self
+ }
+
+ pub fn ssse3(&self) -> bool {
+ self.flags & (1 << 1) != 0
+ }
+
+ pub fn with_ssse3(mut self) -> Self {
+ self.flags |= 1 << 1;
+ self
+ }
+
+ pub fn monitor(&self) -> bool {
+ self.flags & (1 << 2) != 0
+ }
+
+ pub fn with_monitor(mut self) -> Self {
+ self.flags |= 1 << 2;
+ self
+ }
+
+ pub fn vmx(&self) -> bool {
+ self.flags & (1 << 3) != 0
+ }
+
+ pub fn with_vmx(mut self) -> Self {
+ self.flags |= 1 << 3;
+ self
+ }
+
+ pub fn fma3(&self) -> bool {
+ self.flags & (1 << 4) != 0
+ }
+
+ pub fn with_fma3(mut self) -> Self {
+ self.flags |= 1 << 4;
+ self
+ }
+
+ pub fn cmpxchg16b(&self) -> bool {
+ self.flags & (1 << 5) != 0
+ }
+
+ pub fn with_cmpxchg16b(mut self) -> Self {
+ self.flags |= 1 << 5;
+ self
+ }
+
+ pub fn sse4_1(&self) -> bool {
+ self.flags & (1 << 6) != 0
+ }
+
+ pub fn with_sse4_1(mut self) -> Self {
+ self.flags |= 1 << 6;
+ self
+ }
+
+ pub fn sse4_2(&self) -> bool {
+ self.flags & (1 << 7) != 0
+ }
+
+ pub fn with_sse4_2(mut self) -> Self {
+ self.flags |= 1 << 7;
+ self
+ }
+
+ pub fn with_sse4(self) -> Self {
+ self
+ .with_sse4_1()
+ .with_sse4_2()
+ }
+
+ pub fn movbe(&self) -> bool {
+ self.flags & (1 << 8) != 0
+ }
+
+ pub fn with_movbe(mut self) -> Self {
+ self.flags |= 1 << 8;
+ self
+ }
+
+ pub fn popcnt(&self) -> bool {
+ self.flags & (1 << 9) != 0
+ }
+
+ pub fn with_popcnt(mut self) -> Self {
+ self.flags |= 1 << 9;
+ self
+ }
+
+ pub fn aesni(&self) -> bool {
+ self.flags & (1 << 10) != 0
+ }
+
+ pub fn with_aesni(mut self) -> Self {
+ self.flags |= 1 << 10;
+ self
+ }
+
+ pub fn xsave(&self) -> bool {
+ self.flags & (1 << 11) != 0
+ }
+
+ pub fn with_xsave(mut self) -> Self {
+ self.flags |= 1 << 11;
+ self
+ }
+
+ pub fn rdrand(&self) -> bool {
+ self.flags & (1 << 12) != 0
+ }
+
+ pub fn with_rdrand(mut self) -> Self {
+ self.flags |= 1 << 12;
+ self
+ }
+
+ pub fn sgx(&self) -> bool {
+ self.flags & (1 << 13) != 0
+ }
+
+ pub fn with_sgx(mut self) -> Self {
+ self.flags |= 1 << 13;
+ self
+ }
+
+ pub fn bmi1(&self) -> bool {
+ self.flags & (1 << 14) != 0
+ }
+
+ pub fn with_bmi1(mut self) -> Self {
+ self.flags |= 1 << 14;
+ self
+ }
+
+ pub fn avx2(&self) -> bool {
+ self.flags & (1 << 15) != 0
+ }
+
+ pub fn with_avx2(mut self) -> Self {
+ self.flags |= 1 << 15;
+ self
+ }
+
+ /// `bmi2` indicates support for the `BZHI`, `MULX`, `PDEP`, `PEXT`, `RORX`, `SARX`, `SHRX`,
+ /// and `SHLX` instructions. `bmi2` is implemented in all x86 chips that implement `bmi`,
+ /// except the amd `piledriver` and `steamroller` microarchitectures.
+ pub fn bmi2(&self) -> bool {
+ self.flags & (1 << 16) != 0
+ }
+
+ pub fn with_bmi2(mut self) -> Self {
+ self.flags |= 1 << 16;
+ self
+ }
+
+ pub fn invpcid(&self) -> bool {
+ self.flags & (1 << 17) != 0
+ }
+
+ pub fn with_invpcid(mut self) -> Self {
+ self.flags |= 1 << 17;
+ self
+ }
+
+ pub fn mpx(&self) -> bool {
+ self.flags & (1 << 18) != 0
+ }
+
+ pub fn with_mpx(mut self) -> Self {
+ self.flags |= 1 << 18;
+ self
+ }
+
+ pub fn avx512_f(&self) -> bool {
+ self.flags & (1 << 19) != 0
+ }
+
+ pub fn with_avx512_f(mut self) -> Self {
+ self.flags |= 1 << 19;
+ self
+ }
+
+ pub fn avx512_dq(&self) -> bool {
+ self.flags & (1 << 20) != 0
+ }
+
+ pub fn with_avx512_dq(mut self) -> Self {
+ self.flags |= 1 << 20;
+ self
+ }
+
+ pub fn rdseed(&self) -> bool {
+ self.flags & (1 << 21) != 0
+ }
+
+ pub fn with_rdseed(mut self) -> Self {
+ self.flags |= 1 << 21;
+ self
+ }
+
+ pub fn adx(&self) -> bool {
+ self.flags & (1 << 22) != 0
+ }
+
+ pub fn with_adx(mut self) -> Self {
+ self.flags |= 1 << 22;
+ self
+ }
+
+ pub fn avx512_fma(&self) -> bool {
+ self.flags & (1 << 23) != 0
+ }
+
+ pub fn with_avx512_fma(mut self) -> Self {
+ self.flags |= 1 << 23;
+ self
+ }
+
+ pub fn pcommit(&self) -> bool {
+ self.flags & (1 << 24) != 0
+ }
+
+ pub fn with_pcommit(mut self) -> Self {
+ self.flags |= 1 << 24;
+ self
+ }
+
+ pub fn clflushopt(&self) -> bool {
+ self.flags & (1 << 25) != 0
+ }
+
+ pub fn with_clflushopt(mut self) -> Self {
+ self.flags |= 1 << 25;
+ self
+ }
+
+ pub fn clwb(&self) -> bool {
+ self.flags & (1 << 26) != 0
+ }
+
+ pub fn with_clwb(mut self) -> Self {
+ self.flags |= 1 << 26;
+ self
+ }
+
+ pub fn avx512_pf(&self) -> bool {
+ self.flags & (1 << 27) != 0
+ }
+
+ pub fn with_avx512_pf(mut self) -> Self {
+ self.flags |= 1 << 27;
+ self
+ }
+
+ pub fn avx512_er(&self) -> bool {
+ self.flags & (1 << 28) != 0
+ }
+
+ pub fn with_avx512_er(mut self) -> Self {
+ self.flags |= 1 << 28;
+ self
+ }
+
+ pub fn avx512_cd(&self) -> bool {
+ self.flags & (1 << 29) != 0
+ }
+
+ pub fn with_avx512_cd(mut self) -> Self {
+ self.flags |= 1 << 29;
+ self
+ }
+
+ pub fn sha(&self) -> bool {
+ self.flags & (1 << 30) != 0
+ }
+
+ pub fn with_sha(mut self) -> Self {
+ self.flags |= 1 << 30;
+ self
+ }
+
+ pub fn avx512_bw(&self) -> bool {
+ self.flags & (1 << 31) != 0
+ }
+
+ pub fn with_avx512_bw(mut self) -> Self {
+ self.flags |= 1 << 31;
+ self
+ }
+
+ pub fn avx512_vl(&self) -> bool {
+ self.flags & (1 << 32) != 0
+ }
+
+ pub fn with_avx512_vl(mut self) -> Self {
+ self.flags |= 1 << 32;
+ self
+ }
+
+ pub fn prefetchwt1(&self) -> bool {
+ self.flags & (1 << 33) != 0
+ }
+
+ pub fn with_prefetchwt1(mut self) -> Self {
+ self.flags |= 1 << 33;
+ self
+ }
+
+ pub fn avx512_vbmi(&self) -> bool {
+ self.flags & (1 << 34) != 0
+ }
+
+ pub fn with_avx512_vbmi(mut self) -> Self {
+ self.flags |= 1 << 34;
+ self
+ }
+
+ pub fn avx512_vbmi2(&self) -> bool {
+ self.flags & (1 << 35) != 0
+ }
+
+ pub fn with_avx512_vbmi2(mut self) -> Self {
+ self.flags |= 1 << 35;
+ self
+ }
+
+ pub fn gfni(&self) -> bool {
+ self.flags & (1 << 36) != 0
+ }
+
+ pub fn with_gfni(mut self) -> Self {
+ self.flags |= 1 << 36;
+ self
+ }
+
+ pub fn vaes(&self) -> bool {
+ self.flags & (1 << 37) != 0
+ }
+
+ pub fn with_vaes(mut self) -> Self {
+ self.flags |= 1 << 37;
+ self
+ }
+
+ pub fn pclmulqdq(&self) -> bool {
+ self.flags & (1 << 38) != 0
+ }
+
+ pub fn with_pclmulqdq(mut self) -> Self {
+ self.flags |= 1 << 38;
+ self
+ }
+
+ pub fn avx_vnni(&self) -> bool {
+ self.flags & (1 << 39) != 0
+ }
+
+ pub fn with_avx_vnni(mut self) -> Self {
+ self.flags |= 1 << 39;
+ self
+ }
+
+ pub fn avx512_bitalg(&self) -> bool {
+ self.flags & (1 << 40) != 0
+ }
+
+ pub fn with_avx512_bitalg(mut self) -> Self {
+ self.flags |= 1 << 40;
+ self
+ }
+
+ pub fn avx512_vpopcntdq(&self) -> bool {
+ self.flags & (1 << 41) != 0
+ }
+
+ pub fn with_avx512_vpopcntdq(mut self) -> Self {
+ self.flags |= 1 << 41;
+ self
+ }
+
+ pub fn avx512_4vnniw(&self) -> bool {
+ self.flags & (1 << 42) != 0
+ }
+
+ pub fn with_avx512_4vnniw(mut self) -> Self {
+ self.flags |= 1 << 42;
+ self
+ }
+
+ pub fn avx512_4fmaps(&self) -> bool {
+ self.flags & (1 << 43) != 0
+ }
+
+ pub fn with_avx512_4fmaps(mut self) -> Self {
+ self.flags |= 1 << 43;
+ self
+ }
+
+ /// returns `true` if this `InstDecoder` has **all** `avx512` features enabled.
+ pub fn avx512(&self) -> bool {
+ let avx512_mask =
+ (1 << 19) |
+ (1 << 20) |
+ (1 << 23) |
+ (1 << 27) |
+ (1 << 28) |
+ (1 << 29) |
+ (1 << 31) |
+ (1 << 32) |
+ (1 << 34) |
+ (1 << 35) |
+ (1 << 40) |
+ (1 << 41) |
+ (1 << 42) |
+ (1 << 43);
+
+ (self.flags & avx512_mask) == avx512_mask
+ }
+
+ /// enable all `avx512` features on this `InstDecoder`. no real CPU, at time of writing,
+ /// actually has such a feature comination, but this is a useful overestimate for `avx512`
+ /// generally.
+ pub fn with_avx512(mut self) -> Self {
+ let avx512_mask =
+ (1 << 19) |
+ (1 << 20) |
+ (1 << 23) |
+ (1 << 27) |
+ (1 << 28) |
+ (1 << 29) |
+ (1 << 31) |
+ (1 << 32) |
+ (1 << 34) |
+ (1 << 35) |
+ (1 << 40) |
+ (1 << 41) |
+ (1 << 42) |
+ (1 << 43);
+
+ self.flags |= avx512_mask;
+ self
+ }
+
+ pub fn cx8(&self) -> bool {
+ self.flags & (1 << 44) != 0
+ }
+
+ pub fn with_cx8(mut self) -> Self {
+ self.flags |= 1 << 44;
+ self
+ }
+
+ pub fn syscall(&self) -> bool {
+ self.flags & (1 << 45) != 0
+ }
+
+ pub fn with_syscall(mut self) -> Self {
+ self.flags |= 1 << 45;
+ self
+ }
+
+ pub fn rdtscp(&self) -> bool {
+ self.flags & (1 << 46) != 0
+ }
+
+ pub fn with_rdtscp(mut self) -> Self {
+ self.flags |= 1 << 46;
+ self
+ }
+
+ pub fn abm(&self) -> bool {
+ self.flags & (1 << 47) != 0
+ }
+
+ pub fn with_abm(mut self) -> Self {
+ self.flags |= 1 << 47;
+ self
+ }
+
+ pub fn sse4a(&self) -> bool {
+ self.flags & (1 << 48) != 0
+ }
+
+ pub fn with_sse4a(mut self) -> Self {
+ self.flags |= 1 << 48;
+ self
+ }
+
+ pub fn _3dnowprefetch(&self) -> bool {
+ self.flags & (1 << 49) != 0
+ }
+
+ pub fn with_3dnowprefetch(mut self) -> Self {
+ self.flags |= 1 << 49;
+ self
+ }
+
+ pub fn xop(&self) -> bool {
+ self.flags & (1 << 50) != 0
+ }
+
+ pub fn with_xop(mut self) -> Self {
+ self.flags |= 1 << 50;
+ self
+ }
+
+ pub fn skinit(&self) -> bool {
+ self.flags & (1 << 51) != 0
+ }
+
+ pub fn with_skinit(mut self) -> Self {
+ self.flags |= 1 << 51;
+ self
+ }
+
+ pub fn tbm(&self) -> bool {
+ self.flags & (1 << 52) != 0
+ }
+
+ pub fn with_tbm(mut self) -> Self {
+ self.flags |= 1 << 52;
+ self
+ }
+
+ pub fn intel_quirks(&self) -> bool {
+ self.flags & (1 << 53) != 0
+ }
+
+ pub fn with_intel_quirks(mut self) -> Self {
+ self.flags |= 1 << 53;
+ self
+ }
+
+ pub fn amd_quirks(&self) -> bool {
+ self.flags & (1 << 54) != 0
+ }
+
+ pub fn with_amd_quirks(mut self) -> Self {
+ self.flags |= 1 << 54;
+ self
+ }
+
+ pub fn avx(&self) -> bool {
+ self.flags & (1 << 55) != 0
+ }
+
+ pub fn with_avx(mut self) -> Self {
+ self.flags |= 1 << 55;
+ self
+ }
+
+ pub fn svm(&self) -> bool {
+ self.flags & (1 << 56) != 0
+ }
+
+ pub fn with_svm(mut self) -> Self {
+ self.flags |= 1 << 56;
+ self
+ }
+
+ /// `lahfsahf` is only unset for early revisions of 64-bit amd and intel chips. unfortunately
+ /// the clearest documentation on when these instructions were reintroduced into 64-bit
+ /// architectures seems to be
+ /// [wikipedia](https://en.wikipedia.org/wiki/X86-64#Older_implementations):
+ /// ```text
+ /// Early AMD64 and Intel 64 CPUs lacked LAHF and SAHF instructions in 64-bit mode. AMD
+ /// introduced these instructions (also in 64-bit mode) with their Athlon 64, Opteron and
+ /// Turion 64 revision D processors in March 2005[48][49][50] while Intel introduced the
+ /// instructions with the Pentium 4 G1 stepping in December 2005. The 64-bit version of Windows
+ /// 8.1 requires this feature.[47]
+ /// ```
+ ///
+ /// this puts reintroduction of these instructions somewhere in the middle of prescott and k8
+ /// lifecycles, for intel and amd respectively. because there is no specific uarch where these
+ /// features become enabled, prescott and k8 default to not supporting these instructions,
+ /// where later uarches support these instructions.
+ pub fn lahfsahf(&self) -> bool {
+ self.flags & (1 << 57) != 0
+ }
+
+ pub fn with_lahfsahf(mut self) -> Self {
+ self.flags |= 1 << 57;
+ self
+ }
+
+ pub fn cmov(&self) -> bool {
+ self.flags & (1 << 58) != 0
+ }
+
+ pub fn with_cmov(mut self) -> Self {
+ self.flags |= 1 << 58;
+ self
+ }
+
+ pub fn f16c(&self) -> bool {
+ self.flags & (1 << 59) != 0
+ }
+
+ pub fn with_f16c(mut self) -> Self {
+ self.flags |= 1 << 59;
+ self
+ }
+
+ pub fn fma4(&self) -> bool {
+ self.flags & (1 << 60) != 0
+ }
+
+ pub fn with_fma4(mut self) -> Self {
+ self.flags |= 1 << 60;
+ self
+ }
+
+ pub fn prefetchw(&self) -> bool {
+ self.flags & (1 << 61) != 0
+ }
+
+ pub fn with_prefetchw(mut self) -> Self {
+ self.flags |= 1 << 61;
+ self
+ }
+
+ pub fn tsx(&self) -> bool {
+ self.flags & (1 << 62) != 0
+ }
+
+ pub fn with_tsx(mut self) -> Self {
+ self.flags |= 1 << 62;
+ self
+ }
+
+ pub fn lzcnt(&self) -> bool {
+ self.flags & (1 << 63) != 0
+ }
+
+ pub fn with_lzcnt(mut self) -> Self {
+ self.flags |= 1 << 63;
+ self
+ }
+
+ /// Optionally reject or reinterpret instruction according to the decoder's
+ /// declared extensions.
+ fn revise_instruction(&self, inst: &mut Instruction) -> Result<(), DecodeError> {
+ if inst.prefixes.evex().is_some() {
+ if !self.avx512() {
+ return Err(DecodeError::InvalidOpcode);
+ } else {
+ return Ok(());
+ }
+ }
+ match inst.opcode {
+ Opcode::TZCNT => {
+ if !self.bmi1() {
+ // tzcnt is only supported if bmi1 is enabled. without bmi1, this decodes as
+ // bsf.
+ inst.opcode = Opcode::BSF;
+ }
+ }
+ Opcode::LDDQU |
+ Opcode::ADDSUBPS |
+ Opcode::ADDSUBPD |
+ Opcode::HADDPS |
+ Opcode::HSUBPS |
+ Opcode::HADDPD |
+ Opcode::HSUBPD |
+ Opcode::MOVSHDUP |
+ Opcode::MOVSLDUP |
+ Opcode::MOVDDUP |
+ Opcode::MONITOR |
+ Opcode::MWAIT => {
+ // via Intel section 5.7, SSE3 Instructions
+ if !self.sse3() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::PHADDW |
+ Opcode::PHADDSW |
+ Opcode::PHADDD |
+ Opcode::PHSUBW |
+ Opcode::PHSUBSW |
+ Opcode::PHSUBD |
+ Opcode::PABSB |
+ Opcode::PABSW |
+ Opcode::PABSD |
+ Opcode::PMADDUBSW |
+ Opcode::PMULHRSW |
+ Opcode::PSHUFB |
+ Opcode::PSIGNB |
+ Opcode::PSIGNW |
+ Opcode::PSIGND |
+ Opcode::PALIGNR => {
+ // via Intel section 5.8, SSSE3 Instructions
+ if !self.ssse3() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::PMULLD |
+ Opcode::PMULDQ |
+ Opcode::MOVNTDQA |
+ Opcode::BLENDPD |
+ Opcode::BLENDPS |
+ Opcode::BLENDVPD |
+ Opcode::BLENDVPS |
+ Opcode::PBLENDVB |
+ Opcode::BLENDW |
+ Opcode::PMINUW |
+ Opcode::PMINUD |
+ Opcode::PMINSB |
+ Opcode::PMINSD |
+ Opcode::PMAXUW |
+ Opcode::PMAXUD |
+ Opcode::PMAXSB |
+ Opcode::PMAXSD |
+ Opcode::ROUNDPS |
+ Opcode::ROUNDPD |
+ Opcode::ROUNDSS |
+ Opcode::ROUNDSD |
+ Opcode::PBLENDW |
+ Opcode::EXTRACTPS |
+ Opcode::INSERTPS |
+ Opcode::PINSRB |
+ Opcode::PINSRD |
+ Opcode::PINSRQ |
+ Opcode::PMOVSXBW |
+ Opcode::PMOVZXBW |
+ Opcode::PMOVSXBD |
+ Opcode::PMOVZXBD |
+ Opcode::PMOVSXWD |
+ Opcode::PMOVZXWD |
+ Opcode::PMOVSXBQ |
+ Opcode::PMOVZXBQ |
+ Opcode::PMOVSXWQ |
+ Opcode::PMOVZXWQ |
+ Opcode::PMOVSXDQ |
+ Opcode::PMOVZXDQ |
+ Opcode::DPPS |
+ Opcode::DPPD |
+ Opcode::MPSADBW |
+ Opcode::PHMINPOSUW |
+ Opcode::PTEST |
+ Opcode::PCMPEQQ |
+ Opcode::PEXTRB |
+ Opcode::PEXTRW |
+ Opcode::PEXTRD |
+ Opcode::PEXTRQ |
+ Opcode::PACKUSDW => {
+ // via Intel section 5.10, SSE4.1 Instructions
+ if !self.sse4_1() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::EXTRQ |
+ Opcode::INSERTQ |
+ Opcode::MOVNTSS |
+ Opcode::MOVNTSD => {
+ if !self.sse4a() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::CRC32 |
+ Opcode::PCMPESTRI |
+ Opcode::PCMPESTRM |
+ Opcode::PCMPISTRI |
+ Opcode::PCMPISTRM |
+ Opcode::PCMPGTQ => {
+ // via Intel section 5.11, SSE4.2 Instructions
+ if !self.sse4_2() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::AESDEC |
+ Opcode::AESDECLAST |
+ Opcode::AESENC |
+ Opcode::AESENCLAST |
+ Opcode::AESIMC |
+ Opcode::AESKEYGENASSIST => {
+ // via Intel section 5.12. AESNI AND PCLMULQDQ
+ if !self.aesni() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::PCLMULQDQ => {
+ // via Intel section 5.12. AESNI AND PCLMULQDQ
+ if !self.pclmulqdq() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::XABORT |
+ Opcode::XBEGIN |
+ Opcode::XEND |
+ Opcode::XTEST => {
+ if !self.tsx() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::SHA1MSG1 |
+ Opcode::SHA1MSG2 |
+ Opcode::SHA1NEXTE |
+ Opcode::SHA1RNDS4 |
+ Opcode::SHA256MSG1 |
+ Opcode::SHA256MSG2 |
+ Opcode::SHA256RNDS2 => {
+ if !self.sha() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::ENCLV |
+ Opcode::ENCLS |
+ Opcode::ENCLU => {
+ if !self.sgx() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ // AVX...
+ Opcode::VMOVDDUP |
+ Opcode::VPSHUFLW |
+ Opcode::VPSHUFHW |
+ Opcode::VHADDPS |
+ Opcode::VHSUBPS |
+ Opcode::VADDSUBPS |
+ Opcode::VCVTPD2DQ |
+ Opcode::VLDDQU |
+ Opcode::VCOMISD |
+ Opcode::VCOMISS |
+ Opcode::VUCOMISD |
+ Opcode::VUCOMISS |
+ Opcode::VADDPD |
+ Opcode::VADDPS |
+ Opcode::VADDSD |
+ Opcode::VADDSS |
+ Opcode::VADDSUBPD |
+ Opcode::VBLENDPD |
+ Opcode::VBLENDPS |
+ Opcode::VBLENDVPD |
+ Opcode::VBLENDVPS |
+ Opcode::VBROADCASTF128 |
+ Opcode::VBROADCASTI128 |
+ Opcode::VBROADCASTSD |
+ Opcode::VBROADCASTSS |
+ Opcode::VCMPSD |
+ Opcode::VCMPSS |
+ Opcode::VCMPPD |
+ Opcode::VCMPPS |
+ Opcode::VCVTDQ2PD |
+ Opcode::VCVTDQ2PS |
+ Opcode::VCVTPD2PS |
+ Opcode::VCVTPS2DQ |
+ Opcode::VCVTPS2PD |
+ Opcode::VCVTSS2SD |
+ Opcode::VCVTSI2SS |
+ Opcode::VCVTSI2SD |
+ Opcode::VCVTSD2SI |
+ Opcode::VCVTSD2SS |
+ Opcode::VCVTSS2SI |
+ Opcode::VCVTTPD2DQ |
+ Opcode::VCVTTPS2DQ |
+ Opcode::VCVTTSS2SI |
+ Opcode::VCVTTSD2SI |
+ Opcode::VDIVPD |
+ Opcode::VDIVPS |
+ Opcode::VDIVSD |
+ Opcode::VDIVSS |
+ Opcode::VDPPD |
+ Opcode::VDPPS |
+ Opcode::VEXTRACTF128 |
+ Opcode::VEXTRACTI128 |
+ Opcode::VEXTRACTPS |
+ Opcode::VFMADD132PD |
+ Opcode::VFMADD132PS |
+ Opcode::VFMADD132SD |
+ Opcode::VFMADD132SS |
+ Opcode::VFMADD213PD |
+ Opcode::VFMADD213PS |
+ Opcode::VFMADD213SD |
+ Opcode::VFMADD213SS |
+ Opcode::VFMADD231PD |
+ Opcode::VFMADD231PS |
+ Opcode::VFMADD231SD |
+ Opcode::VFMADD231SS |
+ Opcode::VFMADDSUB132PD |
+ Opcode::VFMADDSUB132PS |
+ Opcode::VFMADDSUB213PD |
+ Opcode::VFMADDSUB213PS |
+ Opcode::VFMADDSUB231PD |
+ Opcode::VFMADDSUB231PS |
+ Opcode::VFMSUB132PD |
+ Opcode::VFMSUB132PS |
+ Opcode::VFMSUB132SD |
+ Opcode::VFMSUB132SS |
+ Opcode::VFMSUB213PD |
+ Opcode::VFMSUB213PS |
+ Opcode::VFMSUB213SD |
+ Opcode::VFMSUB213SS |
+ Opcode::VFMSUB231PD |
+ Opcode::VFMSUB231PS |
+ Opcode::VFMSUB231SD |
+ Opcode::VFMSUB231SS |
+ Opcode::VFMSUBADD132PD |
+ Opcode::VFMSUBADD132PS |
+ Opcode::VFMSUBADD213PD |
+ Opcode::VFMSUBADD213PS |
+ Opcode::VFMSUBADD231PD |
+ Opcode::VFMSUBADD231PS |
+ Opcode::VFNMADD132PD |
+ Opcode::VFNMADD132PS |
+ Opcode::VFNMADD132SD |
+ Opcode::VFNMADD132SS |
+ Opcode::VFNMADD213PD |
+ Opcode::VFNMADD213PS |
+ Opcode::VFNMADD213SD |
+ Opcode::VFNMADD213SS |
+ Opcode::VFNMADD231PD |
+ Opcode::VFNMADD231PS |
+ Opcode::VFNMADD231SD |
+ Opcode::VFNMADD231SS |
+ Opcode::VFNMSUB132PD |
+ Opcode::VFNMSUB132PS |
+ Opcode::VFNMSUB132SD |
+ Opcode::VFNMSUB132SS |
+ Opcode::VFNMSUB213PD |
+ Opcode::VFNMSUB213PS |
+ Opcode::VFNMSUB213SD |
+ Opcode::VFNMSUB213SS |
+ Opcode::VFNMSUB231PD |
+ Opcode::VFNMSUB231PS |
+ Opcode::VFNMSUB231SD |
+ Opcode::VFNMSUB231SS |
+ Opcode::VGATHERDPD |
+ Opcode::VGATHERDPS |
+ Opcode::VGATHERQPD |
+ Opcode::VGATHERQPS |
+ Opcode::VHADDPD |
+ Opcode::VHSUBPD |
+ Opcode::VINSERTF128 |
+ Opcode::VINSERTI128 |
+ Opcode::VINSERTPS |
+ Opcode::VMASKMOVDQU |
+ Opcode::VMASKMOVPD |
+ Opcode::VMASKMOVPS |
+ Opcode::VMAXPD |
+ Opcode::VMAXPS |
+ Opcode::VMAXSD |
+ Opcode::VMAXSS |
+ Opcode::VMINPD |
+ Opcode::VMINPS |
+ Opcode::VMINSD |
+ Opcode::VMINSS |
+ Opcode::VMOVAPD |
+ Opcode::VMOVAPS |
+ Opcode::VMOVD |
+ Opcode::VMOVDQA |
+ Opcode::VMOVDQU |
+ Opcode::VMOVHLPS |
+ Opcode::VMOVHPD |
+ Opcode::VMOVHPS |
+ Opcode::VMOVLHPS |
+ Opcode::VMOVLPD |
+ Opcode::VMOVLPS |
+ Opcode::VMOVMSKPD |
+ Opcode::VMOVMSKPS |
+ Opcode::VMOVNTDQ |
+ Opcode::VMOVNTDQA |
+ Opcode::VMOVNTPD |
+ Opcode::VMOVNTPS |
+ Opcode::VMOVQ |
+ Opcode::VMOVSS |
+ Opcode::VMOVSD |
+ Opcode::VMOVSHDUP |
+ Opcode::VMOVSLDUP |
+ Opcode::VMOVUPD |
+ Opcode::VMOVUPS |
+ Opcode::VMPSADBW |
+ Opcode::VMULPD |
+ Opcode::VMULPS |
+ Opcode::VMULSD |
+ Opcode::VMULSS |
+ Opcode::VPABSB |
+ Opcode::VPABSD |
+ Opcode::VPABSW |
+ Opcode::VPACKSSDW |
+ Opcode::VPACKUSDW |
+ Opcode::VPACKSSWB |
+ Opcode::VPACKUSWB |
+ Opcode::VPADDB |
+ Opcode::VPADDD |
+ Opcode::VPADDQ |
+ Opcode::VPADDSB |
+ Opcode::VPADDSW |
+ Opcode::VPADDUSB |
+ Opcode::VPADDUSW |
+ Opcode::VPADDW |
+ Opcode::VPALIGNR |
+ Opcode::VPAND |
+ Opcode::VANDPD |
+ Opcode::VANDPS |
+ Opcode::VANDNPD |
+ Opcode::VANDNPS |
+ Opcode::VORPD |
+ Opcode::VORPS |
+ Opcode::VPANDN |
+ Opcode::VPAVGB |
+ Opcode::VPAVGW |
+ Opcode::VPBLENDD |
+ Opcode::VPBLENDVB |
+ Opcode::VPBLENDW |
+ Opcode::VPBROADCASTB |
+ Opcode::VPBROADCASTD |
+ Opcode::VPBROADCASTQ |
+ Opcode::VPBROADCASTW |
+ Opcode::VPCLMULQDQ |
+ Opcode::VPCMPEQB |
+ Opcode::VPCMPEQD |
+ Opcode::VPCMPEQQ |
+ Opcode::VPCMPEQW |
+ Opcode::VPCMPGTB |
+ Opcode::VPCMPGTD |
+ Opcode::VPCMPGTQ |
+ Opcode::VPCMPGTW |
+ Opcode::VPCMPESTRI |
+ Opcode::VPCMPESTRM |
+ Opcode::VPCMPISTRI |
+ Opcode::VPCMPISTRM |
+ Opcode::VPERM2F128 |
+ Opcode::VPERM2I128 |
+ Opcode::VPERMD |
+ Opcode::VPERMILPD |
+ Opcode::VPERMILPS |
+ Opcode::VPERMPD |
+ Opcode::VPERMPS |
+ Opcode::VPERMQ |
+ Opcode::VPEXTRB |
+ Opcode::VPEXTRD |
+ Opcode::VPEXTRQ |
+ Opcode::VPEXTRW |
+ Opcode::VPGATHERDD |
+ Opcode::VPGATHERDQ |
+ Opcode::VPGATHERQD |
+ Opcode::VPGATHERQQ |
+ Opcode::VPHADDD |
+ Opcode::VPHADDSW |
+ Opcode::VPHADDW |
+ Opcode::VPMADDUBSW |
+ Opcode::VPHMINPOSUW |
+ Opcode::VPHSUBD |
+ Opcode::VPHSUBSW |
+ Opcode::VPHSUBW |
+ Opcode::VPINSRB |
+ Opcode::VPINSRD |
+ Opcode::VPINSRQ |
+ Opcode::VPINSRW |
+ Opcode::VPMADDWD |
+ Opcode::VPMASKMOVD |
+ Opcode::VPMASKMOVQ |
+ Opcode::VPMAXSB |
+ Opcode::VPMAXSD |
+ Opcode::VPMAXSW |
+ Opcode::VPMAXUB |
+ Opcode::VPMAXUW |
+ Opcode::VPMAXUD |
+ Opcode::VPMINSB |
+ Opcode::VPMINSW |
+ Opcode::VPMINSD |
+ Opcode::VPMINUB |
+ Opcode::VPMINUW |
+ Opcode::VPMINUD |
+ Opcode::VPMOVMSKB |
+ Opcode::VPMOVSXBD |
+ Opcode::VPMOVSXBQ |
+ Opcode::VPMOVSXBW |
+ Opcode::VPMOVSXDQ |
+ Opcode::VPMOVSXWD |
+ Opcode::VPMOVSXWQ |
+ Opcode::VPMOVZXBD |
+ Opcode::VPMOVZXBQ |
+ Opcode::VPMOVZXBW |
+ Opcode::VPMOVZXDQ |
+ Opcode::VPMOVZXWD |
+ Opcode::VPMOVZXWQ |
+ Opcode::VPMULDQ |
+ Opcode::VPMULHRSW |
+ Opcode::VPMULHUW |
+ Opcode::VPMULHW |
+ Opcode::VPMULLQ |
+ Opcode::VPMULLD |
+ Opcode::VPMULLW |
+ Opcode::VPMULUDQ |
+ Opcode::VPOR |
+ Opcode::VPSADBW |
+ Opcode::VPSHUFB |
+ Opcode::VPSHUFD |
+ Opcode::VPSIGNB |
+ Opcode::VPSIGND |
+ Opcode::VPSIGNW |
+ Opcode::VPSLLD |
+ Opcode::VPSLLDQ |
+ Opcode::VPSLLQ |
+ Opcode::VPSLLVD |
+ Opcode::VPSLLVQ |
+ Opcode::VPSLLW |
+ Opcode::VPSRAD |
+ Opcode::VPSRAVD |
+ Opcode::VPSRAW |
+ Opcode::VPSRLD |
+ Opcode::VPSRLDQ |
+ Opcode::VPSRLQ |
+ Opcode::VPSRLVD |
+ Opcode::VPSRLVQ |
+ Opcode::VPSRLW |
+ Opcode::VPSUBB |
+ Opcode::VPSUBD |
+ Opcode::VPSUBQ |
+ Opcode::VPSUBSB |
+ Opcode::VPSUBSW |
+ Opcode::VPSUBUSB |
+ Opcode::VPSUBUSW |
+ Opcode::VPSUBW |
+ Opcode::VPTEST |
+ Opcode::VPUNPCKHBW |
+ Opcode::VPUNPCKHDQ |
+ Opcode::VPUNPCKHQDQ |
+ Opcode::VPUNPCKHWD |
+ Opcode::VPUNPCKLBW |
+ Opcode::VPUNPCKLDQ |
+ Opcode::VPUNPCKLQDQ |
+ Opcode::VPUNPCKLWD |
+ Opcode::VPXOR |
+ Opcode::VRCPPS |
+ Opcode::VROUNDPD |
+ Opcode::VROUNDPS |
+ Opcode::VROUNDSD |
+ Opcode::VROUNDSS |
+ Opcode::VRSQRTPS |
+ Opcode::VRSQRTSS |
+ Opcode::VRCPSS |
+ Opcode::VSHUFPD |
+ Opcode::VSHUFPS |
+ Opcode::VSQRTPD |
+ Opcode::VSQRTPS |
+ Opcode::VSQRTSS |
+ Opcode::VSQRTSD |
+ Opcode::VSUBPD |
+ Opcode::VSUBPS |
+ Opcode::VSUBSD |
+ Opcode::VSUBSS |
+ Opcode::VTESTPD |
+ Opcode::VTESTPS |
+ Opcode::VUNPCKHPD |
+ Opcode::VUNPCKHPS |
+ Opcode::VUNPCKLPD |
+ Opcode::VUNPCKLPS |
+ Opcode::VXORPD |
+ Opcode::VXORPS |
+ Opcode::VZEROUPPER |
+ Opcode::VZEROALL |
+ Opcode::VLDMXCSR |
+ Opcode::VSTMXCSR => {
+ // TODO: check a table for these
+ if !self.avx() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::VAESDEC |
+ Opcode::VAESDECLAST |
+ Opcode::VAESENC |
+ Opcode::VAESENCLAST |
+ Opcode::VAESIMC |
+ Opcode::VAESKEYGENASSIST => {
+ // TODO: check a table for these
+ if !self.avx() || !self.aesni() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::MOVBE => {
+ if !self.movbe() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::POPCNT => {
+ /*
+ * from the intel SDM:
+ * ```
+ * Before an application attempts to use the POPCNT instruction, it must check that
+ * the processor supports SSE4.2 (if CPUID.01H:ECX.SSE4_2[bit 20] = 1) and POPCNT
+ * (if CPUID.01H:ECX.POPCNT[bit 23] = 1).
+ * ```
+ */
+ if self.intel_quirks() && (self.sse4_2() || self.popcnt()) {
+ return Ok(());
+ } else if !self.popcnt() {
+ /*
+ * elsewhere from the amd APM:
+ * `Instruction Subsets and CPUID Feature Flags` on page 507 indicates that
+ * popcnt is present when the popcnt bit is reported by cpuid. this seems to be
+ * the less quirky default, so `intel_quirks` is considered the outlier, and
+ * before this default.
+ * */
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::LZCNT => {
+ /*
+ * amd APM, `LZCNT` page 212:
+ * LZCNT is an Advanced Bit Manipulation (ABM) instruction. Support for the LZCNT
+ * instruction is indicated by CPUID Fn8000_0001_ECX[ABM] = 1.
+ *
+ * meanwhile the intel SDM simply states:
+ * ```
+ * CPUID.EAX=80000001H:ECX.LZCNT[bit 5]: if 1 indicates the processor supports the
+ * LZCNT instruction.
+ * ```
+ *
+ * so that's considered the less-quirky (default) case here.
+ * */
+ if self.amd_quirks() && !self.abm() {
+ return Err(DecodeError::InvalidOpcode);
+ } else if !self.lzcnt() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::ADCX |
+ Opcode::ADOX => {
+ if !self.adx() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::VMRUN |
+ Opcode::VMLOAD |
+ Opcode::VMSAVE |
+ Opcode::CLGI |
+ Opcode::VMMCALL |
+ Opcode::INVLPGA => {
+ if !self.svm() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::STGI |
+ Opcode::SKINIT => {
+ if !self.svm() || !self.skinit() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::LAHF |
+ Opcode::SAHF => {
+ if !self.lahfsahf() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::VCVTPS2PH |
+ Opcode::VCVTPH2PS => {
+ /*
+ * from intel SDM:
+ * ```
+ * 14.4.1 Detection of F16C Instructions Application using float 16 instruction
+ * must follow a detection sequence similar to AVX to ensure: • The OS has
+ * enabled YMM state management support, • The processor support AVX as
+ * indicated by the CPUID feature flag, i.e. CPUID.01H:ECX.AVX[bit 28] = 1. •
+ * The processor support 16-bit floating-point conversion instructions via a
+ * CPUID feature flag (CPUID.01H:ECX.F16C[bit 29] = 1).
+ * ```
+ *
+ * TODO: only the VEX-coded variant of this instruction should be gated on `f16c`.
+ * the EVEX-coded variant should be gated on `avx512f` or `avx512vl` if not
+ * EVEX.512-coded.
+ */
+ if !self.avx() || !self.f16c() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::RDRAND => {
+ if !self.rdrand() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::RDSEED => {
+ if !self.rdseed() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ Opcode::MONITORX | Opcode::MWAITX | // these are gated on the `monitorx` and `mwaitx` cpuid bits, but are AMD-only.
+ Opcode::CLZERO | Opcode::RDPRU => { // again, gated on specific cpuid bits, but AMD-only.
+ if !self.amd_quirks() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ other => {
+ if !self.bmi1() {
+ if BMI1.contains(&other) {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ if !self.bmi2() {
+ if BMI2.contains(&other) {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ }
+ }
+ Ok(())
+ }
+}
+
+impl Default for InstDecoder {
+ /// Instantiates an x86 decoder that probably decodes what you want.
+ ///
+ /// Attempts to match real processors in interpretation of undefined sequences, and decodes any
+ /// instruction defined in any extension.
+ fn default() -> Self {
+ Self {
+ flags: 0xffffffff_ffffffff,
+ }
+ }
+}
+
+impl Decoder<Arch> for InstDecoder {
+ fn decode<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpeax_arch::Arch>::Word>>(&self, words: &mut T) -> Result<Instruction, <Arch as yaxpeax_arch::Arch>::DecodeError> {
+ let mut instr = Instruction::invalid();
+ read_instr(self, words, &mut instr)?;
+
+ instr.length = words.offset() as u8;
+ if words.offset() > 15 {
+ return Err(DecodeError::TooLong);
+ }
+
+ if self != &InstDecoder::default() {
+ self.revise_instruction(&mut instr)?;
+ }
+
+ Ok(instr)
+ }
+ fn decode_into<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpeax_arch::Arch>::Word>>(&self, instr: &mut Instruction, words: &mut T) -> Result<(), <Arch as yaxpeax_arch::Arch>::DecodeError> {
+ read_instr(self, words, instr)?;
+
+ instr.length = words.offset() as u8;
+ if words.offset() > 15 {
+ return Err(DecodeError::TooLong);
+ }
+
+ if self != &InstDecoder::default() {
+ self.revise_instruction(instr)?;
+ }
+
+ Ok(())
+ }
+}
+
+impl Opcode {
+ /// get the [`ConditionCode`] for this instruction, if it is in fact conditional. x86's
+ /// conditional instructions are `Jcc`, `CMOVcc`, andd `SETcc`.
+ pub fn condition(&self) -> Option<ConditionCode> {
+ match self {
+ Opcode::JO |
+ Opcode::CMOVO |
+ Opcode::SETO => { Some(ConditionCode::O) },
+ Opcode::JNO |
+ Opcode::CMOVNO |
+ Opcode::SETNO => { Some(ConditionCode::NO) },
+ Opcode::JB |
+ Opcode::CMOVB |
+ Opcode::SETB => { Some(ConditionCode::B) },
+ Opcode::JNB |
+ Opcode::CMOVNB |
+ Opcode::SETAE => { Some(ConditionCode::AE) },
+ Opcode::JZ |
+ Opcode::CMOVZ |
+ Opcode::SETZ => { Some(ConditionCode::Z) },
+ Opcode::JNZ |
+ Opcode::CMOVNZ |
+ Opcode::SETNZ => { Some(ConditionCode::NZ) },
+ Opcode::JA |
+ Opcode::CMOVA |
+ Opcode::SETA => { Some(ConditionCode::A) },
+ Opcode::JNA |
+ Opcode::CMOVNA |
+ Opcode::SETBE => { Some(ConditionCode::BE) },
+ Opcode::JS |
+ Opcode::CMOVS |
+ Opcode::SETS => { Some(ConditionCode::S) },
+ Opcode::JNS |
+ Opcode::CMOVNS |
+ Opcode::SETNS => { Some(ConditionCode::NS) },
+ Opcode::JP |
+ Opcode::CMOVP |
+ Opcode::SETP => { Some(ConditionCode::P) },
+ Opcode::JNP |
+ Opcode::CMOVNP |
+ Opcode::SETNP => { Some(ConditionCode::NP) },
+ Opcode::JL |
+ Opcode::CMOVL |
+ Opcode::SETL => { Some(ConditionCode::L) },
+ Opcode::JGE |
+ Opcode::CMOVGE |
+ Opcode::SETGE => { Some(ConditionCode::GE) },
+ Opcode::JG |
+ Opcode::CMOVG |
+ Opcode::SETG => { Some(ConditionCode::G) },
+ Opcode::JLE |
+ Opcode::CMOVLE |
+ Opcode::SETLE => { Some(ConditionCode::LE) },
+ _ => None,
+ }
+ }
+}
+
+impl Default for Instruction {
+ fn default() -> Self {
+ Instruction::invalid()
+ }
+}
+
+impl Instruction {
+ /// get the `Opcode` of this instruction.
+ pub fn opcode(&self) -> Opcode {
+ self.opcode
+ }
+
+ /// get the `Operand` at the provided index.
+ ///
+ /// panics if the index is `>= 4`.
+ pub fn operand(&self, i: u8) -> Operand {
+ assert!(i < 4);
+ Operand::from_spec(self, self.operands[i as usize])
+ }
+
+ /// get the number of operands in this instruction. useful in iterating an instruction's
+ /// operands generically.
+ pub fn operand_count(&self) -> u8 {
+ self.operand_count
+ }
+
+ /// check if operand `i` is an actual operand or not. will be `false` for `i >=
+ /// inst.operand_count()`.
+ pub fn operand_present(&self, i: u8) -> bool {
+ assert!(i < 4);
+ if i >= self.operand_count {
+ return false;
+ }
+
+ if let OperandSpec::Nothing = self.operands[i as usize] {
+ false
+ } else {
+ true
+ }
+ }
+
+ /// get the memory access information for this instruction, if it accesses memory.
+ ///
+ /// the corresponding `MemoryAccessSize` may report that the size of accessed memory is
+ /// indeterminate; this is the case for `xsave/xrestor`-style instructions whose operation size
+ /// varies based on physical processor.
+ pub fn mem_size(&self) -> Option<MemoryAccessSize> {
+ if self.mem_size != 0 {
+ Some(MemoryAccessSize { size: self.mem_size })
+ } else {
+ None
+ }
+ }
+
+ /// build a new instruction representing nothing in particular. this is primarily useful as a
+ /// default to pass to `decode_into`.
+ pub fn invalid() -> Instruction {
+ Instruction {
+ prefixes: Prefixes::new(0),
+ opcode: Opcode::NOP,
+ mem_size: 0,
+ regs: [RegSpec::eax(); 4],
+ scale: 0,
+ length: 0,
+ disp: 0,
+ imm: 0,
+ operand_count: 0,
+ operands: [OperandSpec::Nothing; 4],
+ }
+ }
+
+ /// get the `Segment` that will *actually* be used for accessing the operand at index `i`.
+ ///
+ /// `stos`, `lods`, `movs`, and `cmps` specifically name some segments for use regardless of
+ /// prefixes.
+ pub fn segment_override_for_op(&self, op: u8) -> Option<Segment> {
+ match self.opcode {
+ Opcode::STOS => {
+ if op == 0 {
+ Some(Segment::ES)
+ } else {
+ None
+ }
+ }
+ Opcode::LODS => {
+ if op == 1 {
+ Some(self.prefixes.segment)
+ } else {
+ None
+ }
+ }
+ Opcode::MOVS => {
+ if op == 0 {
+ Some(Segment::ES)
+ } else if op == 1 {
+ Some(self.prefixes.segment)
+ } else {
+ None
+ }
+ }
+ Opcode::CMPS => {
+ if op == 0 {
+ Some(self.prefixes.segment)
+ } else if op == 1 {
+ Some(Segment::ES)
+ } else {
+ None
+ }
+ },
+ _ => {
+ // most operands are pretty simple:
+ if self.operands[op as usize].is_memory() &&
+ self.prefixes.segment != Segment::DS {
+ Some(self.prefixes.segment)
+ } else {
+ None
+ }
+ }
+ }
+ }
+
+ #[cfg(feature = "fmt")]
+ /// wrap a reference to this instruction with a `DisplayStyle` to format the instruction with
+ /// later. see the documentation on [`display::DisplayStyle`] for more.
+ ///
+ /// ```
+ /// use yaxpeax_x86::long_mode::{InstDecoder, DisplayStyle};
+ ///
+ /// let decoder = InstDecoder::default();
+ /// let inst = decoder.decode_slice(&[0x33, 0xc1]).unwrap();
+ ///
+ /// assert_eq!("eax ^= ecx", inst.display_with(DisplayStyle::C).to_string());
+ /// assert_eq!("xor eax, ecx", inst.display_with(DisplayStyle::Intel).to_string());
+ /// ```
+ pub fn display_with<'a>(&'a self, style: display::DisplayStyle) -> display::InstructionDisplayer<'a> {
+ display::InstructionDisplayer {
+ style,
+ instr: self,
+ }
+ }
+}
+
+#[derive(Debug, Copy, Clone, Eq, PartialEq)]
+struct EvexData {
+ // data: present, z, b, Lp, Rp. aaa
+ bits: u8,
+}
+
+/// the prefixes on an instruction.
+///
+/// `rep`, `repnz`, `lock`, and segment override prefixes are directly accessible here. `vex` and
+/// `evex` prefixes are available through their associated helpers.
+#[derive(Debug, Copy, Clone, Eq, PartialEq)]
+pub struct Prefixes {
+ bits: u8,
+ vex: PrefixVex,
+ segment: Segment,
+ evex_data: EvexData,
+}
+
+#[derive(Debug, Copy, Clone, Eq, PartialEq)]
+pub struct PrefixEvex {
+ vex: PrefixVex,
+ evex_data: EvexData,
+}
+
+impl PrefixEvex {
+ fn present(&self) -> bool {
+ self.evex_data.present()
+ }
+ /// the `evex` prefix's parts that overlap with `vex` definitions - `L`, `W`, `R`, `X`, and `B`
+ /// bits.
+ pub fn vex(&self) -> &PrefixVex {
+ &self.vex
+ }
+ /// the `avx512` mask register in use. `0` indicates "no mask register".
+ pub fn mask_reg(&self) -> u8 {
+ self.evex_data.aaa()
+ }
+ pub fn broadcast(&self) -> bool {
+ self.evex_data.b()
+ }
+ pub fn merge(&self) -> bool {
+ self.evex_data.z()
+ }
+ /// the `evex` `L'` bit.
+ pub fn lp(&self) -> bool {
+ self.evex_data.lp()
+ }
+ /// the `evex` `R'` bit.
+ pub fn rp(&self) -> bool {
+ self.evex_data.rp()
+ }
+}
+
+/// bits specified in an avx/avx2 [`vex`](https://en.wikipedia.org/wiki/VEX_prefix) prefix, `L`, `W`, `R`, `X`, and `B`.
+#[derive(Debug, Copy, Clone, Eq, PartialEq)]
+pub struct PrefixVex {
+ bits: u8,
+}
+
+#[allow(dead_code)]
+impl PrefixVex {
+ #[inline]
+ pub fn b(&self) -> bool { (self.bits & 0x01) == 0x01 }
+ #[inline]
+ pub fn x(&self) -> bool { (self.bits & 0x02) == 0x02 }
+ #[inline]
+ pub fn r(&self) -> bool { (self.bits & 0x04) == 0x04 }
+ #[inline]
+ pub fn w(&self) -> bool { (self.bits & 0x08) == 0x08 }
+ #[inline]
+ pub fn l(&self) -> bool { (self.bits & 0x10) == 0x10 }
+ #[inline]
+ fn present(&self) -> bool { (self.bits & 0x80) == 0x80 }
+ #[inline]
+ fn compressed_disp(&self) -> bool { (self.bits & 0x20) == 0x20 }
+}
+
+#[allow(dead_code)]
+impl Prefixes {
+ fn new(bits: u8) -> Prefixes {
+ Prefixes {
+ bits: bits,
+ vex: PrefixVex { bits: 0 },
+ segment: Segment::DS,
+ evex_data: EvexData { bits: 0 },
+ }
+ }
+ fn vex_from(&mut self, bits: u8) {
+ self.vex = PrefixVex {
+ bits
+ };
+ }
+ #[inline]
+ pub fn rep(&self) -> bool { self.bits & 0x30 == 0x10 }
+ #[inline]
+ fn set_rep(&mut self) { self.bits = (self.bits & 0xcf) | 0x10 }
+ #[inline]
+ pub fn repnz(&self) -> bool { self.bits & 0x30 == 0x30 }
+ #[inline]
+ fn set_repnz(&mut self) { self.bits = (self.bits & 0xcf) | 0x30 }
+ #[inline]
+ pub fn rep_any(&self) -> bool { self.bits & 0x30 != 0x00 }
+ #[inline]
+ fn operand_size(&self) -> bool { self.bits & 0x1 == 1 }
+ #[inline]
+ fn set_operand_size(&mut self) { self.bits = self.bits | 0x1 }
+ #[inline]
+ fn unset_operand_size(&mut self) { self.bits = self.bits & !0x1 }
+ #[inline]
+ fn address_size(&self) -> bool { self.bits & 0x2 == 2 }
+ #[inline]
+ fn set_address_size(&mut self) { self.bits = self.bits | 0x2 }
+ #[inline]
+ fn set_lock(&mut self) { self.bits |= 0x4 }
+ #[inline]
+ pub fn lock(&self) -> bool { self.bits & 0x4 == 4 }
+ #[inline]
+ pub fn cs(&mut self) { self.segment = Segment::CS }
+ #[inline]
+ fn set_cs(&mut self) { self.segment = Segment::CS }
+ #[inline]
+ pub fn ds(&self) -> bool { self.segment == Segment::DS }
+ #[inline]
+ fn set_ds(&mut self) { self.segment = Segment::DS }
+ #[inline]
+ pub fn es(&self) -> bool { self.segment == Segment::ES }
+ #[inline]
+ fn set_es(&mut self) { self.segment = Segment::ES }
+ #[inline]
+ pub fn fs(&self) -> bool { self.segment == Segment::FS }
+ #[inline]
+ fn set_fs(&mut self) { self.segment = Segment::FS }
+ #[inline]
+ pub fn gs(&self) -> bool { self.segment == Segment::GS }
+ #[inline]
+ fn set_gs(&mut self) { self.segment = Segment::GS }
+ #[inline]
+ pub fn ss(&self) -> bool { self.segment == Segment::SS }
+ #[inline]
+ fn set_ss(&mut self) { self.segment = Segment::SS }
+ #[inline]
+ fn vex_unchecked(&self) -> PrefixVex { PrefixVex { bits: self.vex.bits } }
+ #[inline]
+ pub fn vex(&self) -> Option<PrefixVex> {
+ let vex = self.vex_unchecked();
+ if vex.present() {
+ Some(vex)
+ } else {
+ None
+ }
+ }
+ #[inline]
+ fn evex_unchecked(&self) -> PrefixEvex { PrefixEvex { vex: PrefixVex { bits: self.vex.bits }, evex_data: self.evex_data } }
+ #[inline]
+ pub fn evex(&self) -> Option<PrefixEvex> {
+ let evex = self.evex_unchecked();
+ if evex.present() {
+ Some(evex)
+ } else {
+ None
+ }
+ }
+
+ #[inline]
+ fn apply_compressed_disp(&mut self, state: bool) {
+ if state {
+ self.vex.bits |= 0x20;
+ } else {
+ self.vex.bits &= 0xdf;
+ }
+ }
+
+ #[inline]
+ fn vex_from_c5(&mut self, bits: u8) {
+ // collect rex bits
+ let r = bits & 0x80;
+ let wrxb = (r >> 5) ^ 0x04;
+ let l = (bits & 0x04) << 2;
+ let synthetic_rex = wrxb | l | 0x80;
+ self.vex = PrefixVex { bits: synthetic_rex };
+ }
+
+ #[inline]
+ fn vex_from_c4(&mut self, high: u8, low: u8) {
+ let w = low & 0x80;
+ let rxb = (high >> 5) ^ 0x07;
+ let wrxb = rxb | w >> 4;
+ let l = (low & 0x04) << 2;
+ let synthetic_vex = wrxb | l | 0x80;
+ self.vex = PrefixVex { bits: synthetic_vex };
+ }
+
+ #[inline]
+ fn evex_from(&mut self, b1: u8, b2: u8, b3: u8) {
+ let w = b2 & 0x80;
+ let rxb = ((b1 >> 5) & 0b111) ^ 0b111; // `rxb` is provided in inverted form
+ let wrxb = rxb | (w >> 4);
+ let l = (b3 & 0x20) >> 1;
+ let synthetic_vex = wrxb | l | 0x80;
+ self.vex_from(synthetic_vex);
+
+ // R' is provided in inverted form
+ let rp = ((b1 & 0x10) >> 4) ^ 1;
+ let lp = (b3 & 0x40) >> 6;
+ let aaa = b3 & 0b111;
+ let z = (b3 & 0x80) >> 7;
+ let b = (b3 & 0x10) >> 4;
+ self.evex_data.from(rp, lp, z, b, aaa);
+ }
+}
+
+impl EvexData {
+ fn from(&mut self, rp: u8, lp: u8, z: u8, b: u8, aaa: u8) {
+ let mut bits = 0;
+ bits |= aaa;
+ bits |= b << 3;
+ bits |= z << 4;
+ bits |= lp << 5;
+ bits |= rp << 6;
+ bits |= 0x80;
+ self.bits = bits;
+ }
+}
+
+impl EvexData {
+ pub(crate) fn present(&self) -> bool {
+ self.bits & 0b1000_0000 != 0
+ }
+
+ pub(crate) fn aaa(&self) -> u8 {
+ self.bits & 0b111
+ }
+
+ pub(crate) fn b(&self) -> bool {
+ (self.bits & 0b0000_1000) != 0
+ }
+
+ pub(crate) fn z(&self) -> bool {
+ (self.bits & 0b0001_0000) != 0
+ }
+
+ pub(crate) fn lp(&self) -> bool {
+ (self.bits & 0b0010_0000) != 0
+ }
+
+ pub(crate) fn rp(&self) -> bool {
+ (self.bits & 0b0100_0000) != 0
+ }
+}
+
+#[derive(Debug)]
+struct OperandCodeBuilder {
+ bits: u16
+}
+
+#[allow(non_camel_case_types)]
+enum ZOperandCategory {
+ Zv_R = 0,
+ Zv_AX = 1,
+ Zb_Ib_R = 2,
+ Zv_Iv_R = 3,
+}
+
+struct ZOperandInstructions {
+ bits: u16
+}
+
+impl ZOperandInstructions {
+ fn category(&self) -> u8 {
+ (self.bits >> 4) as u8 & 0b11
+ }
+ fn reg(&self) -> u8 {
+ (self.bits & 0b111) as u8
+ }
+}
+
+struct EmbeddedOperandInstructions {
+ bits: u16
+}
+
+impl EmbeddedOperandInstructions {
+ #[allow(unused)]
+ fn bits(&self) -> u16 {
+ self.bits
+ }
+}
+
+#[allow(non_snake_case)]
+impl OperandCodeBuilder {
+ const fn new() -> Self {
+ OperandCodeBuilder { bits: 0 }
+ }
+
+ const fn bits(&self) -> u16 {
+ self.bits
+ }
+
+ const fn from_bits(bits: u16) -> Self {
+ Self { bits }
+ }
+
+ const fn read_modrm(mut self) -> Self {
+ self.bits |= 0x8000;
+ self
+ }
+
+ const fn op0_is_rrr_and_embedded_instructions(mut self) -> Self {
+ self = self.set_embedded_instructions();
+ self.bits |= 0x2000;
+ self
+ }
+
+ const fn set_embedded_instructions(mut self) -> Self {
+ self.bits |= 0x4000;
+ self
+ }
+
+ #[allow(unused)]
+ const fn op0_is_rrr(&self) -> bool {
+ self.bits & 0x2000 != 0
+ }
+
+ fn has_embedded_instructions(&self) -> bool {
+ self.bits & 0x4000 != 0
+ }
+
+ fn get_embedded_instructions(&self) -> Result<ZOperandInstructions, EmbeddedOperandInstructions> {
+ // 0x4000 indicates embedded instructions
+ // 0x3fff > 0x0080 indicates the embedded instructions are a Z-style operand
+ if self.bits & 0x7f80 <= 0x407f {
+ Ok(ZOperandInstructions { bits: self.bits })
+ } else {
+ Err(EmbeddedOperandInstructions { bits: self.bits })
+ }
+ }
+
+ #[allow(unused)]
+ fn special_case_handler_index(&self) -> u16 {
+ self.bits & 0xff
+ }
+
+ const fn special_case(mut self, case: u16) -> Self {
+ // leave 0x4000 unset
+ self.bits |= case & 0xff;
+ self
+ }
+
+ const fn operand_case(mut self, case: u16) -> Self {
+ // leave 0x4000 unset
+ self.bits |= case & 0xff;
+ self
+ }
+
+ const fn op0_is_rrr_and_Z_operand(mut self, category: ZOperandCategory, reg_num: u8) -> Self {
+ self = self.set_embedded_instructions();
+ // if op0 is rrr, 0x2000 unset indicates the operand category written in bits 11:10
+ // further, reg number is bits 0:2
+ //
+ // when 0x2000 is unset:
+ // 0x1cf8 are all unused bits, so far
+ //
+ // if you're counting, that's 8 bits remaining.
+ // it also means one of those (0x0400?) can be used to pick some other interpretation
+ // scheme.
+ self.bits |= (category as u8 as u16) << 4;
+ self.bits |= reg_num as u16 & 0b111;
+ self
+ }
+
+ const fn read_E(mut self) -> Self {
+ self.bits |= 0x1000;
+ self
+ }
+
+ const fn has_read_E(&self) -> bool {
+ self.bits & 0x1000 != 0
+ }
+
+ const fn byte_operands(mut self) -> Self {
+ self.bits |= 0x0800;
+ self
+ }
+
+ const fn mem_reg(mut self) -> Self {
+ self.bits |= 0x0400;
+ self
+ }
+
+ const fn reg_mem(self) -> Self {
+ // 0x0400 unset
+ self
+ }
+
+ const fn has_byte_operands(&self) -> bool {
+ (self.bits & 0x0800) != 0
+ }
+
+ #[allow(unused)]
+ const fn has_mem_reg(&self) -> bool {
+ (self.bits & 0x0400) != 0
+ }
+
+ const fn has_reg_mem(&self) -> bool {
+ (self.bits & 0x0400) == 0
+ }
+
+ const fn only_modrm_operands(mut self) -> Self {
+ self.bits |= 0x0200;
+ self
+ }
+
+ const fn is_only_modrm_operands(&self) -> bool {
+ self.bits & 0x0200 != 0
+ }
+
+ // WHEN AN IMMEDIATE IS PRESENT, THERE ARE ONLY 0x3F ALLOWED SPECIAL CASES.
+ // WHEN NO IMMEDIATE IS PRESENT, THERE ARE 0xFF ALLOWED SPECIAL CASES.
+ // SIZE IS DECIDED BY THE FOLLOWING TABLE:
+ // 0: 1 BYTE
+ // 1: 4 BYTES
+ const fn with_imm(mut self, only_imm: bool, size: u8) -> Self {
+ self.bits |= 0x100;
+ self.bits |= (size as u16) << 6;
+ self.bits |= (only_imm as u16) << 7;
+ self
+ }
+
+ fn has_imm(&self) -> Option<(bool, u8)> {
+ if self.bits & 0x100 != 0 {
+ Some(((self.bits & 0x80) != 0, (self.bits as u8 >> 6) & 1))
+ } else {
+ None
+ }
+ }
+}
+
+#[allow(non_camel_case_types)]
+// might be able to pack these into a u8, but with `Operand` being u16 as well now there's little
+// point. table entries will have a padding byte per record already.
+//
+// many of the one-off per-opcode variants could be written as 'decide based on opcode' but trying
+// to pack this more tightly only makes sense if opcode were smaller, to get some space savings.
+//
+// bit 15 is "read modrm?"
+// 0bMxxx_xxxx_xxxx_xxxx
+// |
+// |
+// |
+// |
+// |
+// |
+// ---------------------------> read modr/m?
+#[repr(u16)]
+#[derive(Copy, Clone, Debug, PartialEq)]
+enum OperandCode {
+ Ivs = OperandCodeBuilder::new().special_case(25).bits(),
+ I_3 = OperandCodeBuilder::new().special_case(27).bits(),
+ Nothing = OperandCodeBuilder::new().special_case(28).bits(),
+ Ib = OperandCodeBuilder::new().with_imm(false, 0).special_case(32).bits(),
+ Ibs = OperandCodeBuilder::new().with_imm(true, 0).special_case(33).bits(),
+ Jvds = OperandCodeBuilder::new().with_imm(true, 1).special_case(32).bits(),
+ Yv_Xv = OperandCodeBuilder::new().special_case(50).bits(),
+
+ x87_d8 = OperandCodeBuilder::new().special_case(32).bits(),
+ x87_d9 = OperandCodeBuilder::new().special_case(33).bits(),
+ x87_da = OperandCodeBuilder::new().special_case(34).bits(),
+ x87_db = OperandCodeBuilder::new().special_case(35).bits(),
+ x87_dc = OperandCodeBuilder::new().special_case(36).bits(),
+ x87_dd = OperandCodeBuilder::new().special_case(37).bits(),
+ x87_de = OperandCodeBuilder::new().special_case(38).bits(),
+ x87_df = OperandCodeBuilder::new().special_case(39).bits(),
+
+ Eb_R0 = OperandCodeBuilder::new()
+ .read_modrm()
+ .set_embedded_instructions()
+ .read_E()
+ .byte_operands()
+ .operand_case(0)
+ .bits(),
+ AL_Ib = OperandCodeBuilder::new().special_case(33).with_imm(false, 0).bits(),
+ AX_Ib = OperandCodeBuilder::new().special_case(34).with_imm(false, 0).bits(),
+ Ib_AL = OperandCodeBuilder::new().special_case(35).with_imm(false, 0).bits(),
+ Ib_AX = OperandCodeBuilder::new().special_case(36).with_imm(false, 0).bits(),
+ AX_DX = OperandCodeBuilder::new().special_case(44).bits(),
+ AL_DX = OperandCodeBuilder::new().special_case(45).bits(),
+ DX_AX = OperandCodeBuilder::new().special_case(46).bits(),
+ DX_AL = OperandCodeBuilder::new().special_case(47).bits(),
+ MOVQ_f30f = OperandCodeBuilder::new().special_case(48).bits(),
+
+// Unsupported = OperandCodeBuilder::new().special_case(49).bits(),
+
+ ModRM_0x0f00 = OperandCodeBuilder::new().read_modrm().special_case(40).bits(),
+ ModRM_0x0f01 = OperandCodeBuilder::new().read_modrm().special_case(41).bits(),
+ ModRM_0x0f0d = OperandCodeBuilder::new().read_modrm().special_case(42).bits(),
+ ModRM_0x0f0f = OperandCodeBuilder::new().read_modrm().special_case(65).bits(), // 3dnow
+ ModRM_0x0fae = OperandCodeBuilder::new().read_modrm().special_case(43).bits(),
+ ModRM_0x0fba = OperandCodeBuilder::new().read_modrm().special_case(44).bits(),
+// ModRM_0xf30fae = OperandCodeBuilder::new().read_modrm().special_case(46).bits(),
+// ModRM_0x660fae = OperandCodeBuilder::new().read_modrm().special_case(47).bits(),
+// ModRM_0xf30fc7 = OperandCodeBuilder::new().read_modrm().special_case(48).bits(),
+// ModRM_0x660f38 = OperandCodeBuilder::new().read_modrm().special_case(49).bits(),
+// ModRM_0xf20f38 = OperandCodeBuilder::new().read_modrm().special_case(50).bits(),
+// ModRM_0xf30f38 = OperandCodeBuilder::new().read_modrm().special_case(51).bits(),
+ ModRM_0xf30f38d8 = OperandCodeBuilder::new().read_modrm().special_case(45).bits(),
+ ModRM_0xf30f38dc = OperandCodeBuilder::new().read_modrm().special_case(46).bits(),
+ ModRM_0xf30f38dd = OperandCodeBuilder::new().read_modrm().special_case(47).bits(),
+ ModRM_0xf30f38de = OperandCodeBuilder::new().read_modrm().special_case(48).bits(),
+ ModRM_0xf30f38df = OperandCodeBuilder::new().read_modrm().special_case(49).bits(),
+ ModRM_0xf30f38fa = OperandCodeBuilder::new().read_modrm().special_case(50).bits(),
+ ModRM_0xf30f38fb = OperandCodeBuilder::new().read_modrm().special_case(51).bits(),
+ ModRM_0xf30f3af0 = OperandCodeBuilder::new().read_modrm().special_case(52).bits(),
+// ModRM_0x660f3a = OperandCodeBuilder::new().read_modrm().special_case(52).bits(),
+// ModRM_0x0f38 = OperandCodeBuilder::new().read_modrm().special_case(53).bits(),
+// ModRM_0x0f3a = OperandCodeBuilder::new().read_modrm().special_case(54).bits(),
+ ModRM_0x0f71 = OperandCodeBuilder::new().read_modrm().special_case(55).bits(),
+ ModRM_0x0f72 = OperandCodeBuilder::new().read_modrm().special_case(56).bits(),
+ ModRM_0x0f73 = OperandCodeBuilder::new().read_modrm().special_case(57).bits(),
+ ModRM_0xf20f78 = OperandCodeBuilder::new().read_modrm().special_case(58).bits(),
+ ModRM_0x660f78 = OperandCodeBuilder::new().read_modrm().special_case(59).bits(),
+// ModRM_0x660f12 = OperandCodeBuilder::new().read_modrm().special_case(58).bits(),
+// ModRM_0x660f16 = OperandCodeBuilder::new().read_modrm().special_case(59).bits(),
+// ModRM_0x660f71 = OperandCodeBuilder::new().read_modrm().special_case(60).bits(),
+// ModRM_0x660f72 = OperandCodeBuilder::new().read_modrm().special_case(61).bits(),
+// ModRM_0x660f73 = OperandCodeBuilder::new().read_modrm().special_case(62).bits(),
+// ModRM_0x660fc7 = OperandCodeBuilder::new().read_modrm().special_case(63).bits(),
+ ModRM_0x0fc7 = OperandCodeBuilder::new().read_modrm().special_case(64).bits(),
+ ModRM_0xc4 = OperandCodeBuilder::new().read_modrm().special_case(66).bits(),
+ ModRM_0xc5 = OperandCodeBuilder::new().read_modrm().special_case(67).bits(),
+ // xmmword?
+ ModRM_0x0f12 = OperandCodeBuilder::new()
+ .read_modrm()
+ .op0_is_rrr_and_embedded_instructions()
+ .read_E()
+ .reg_mem()
+ .operand_case(65)
+ .bits(),
+ // xmmword?
+ ModRM_0x0f16 = OperandCodeBuilder::new()
+ .read_modrm()
+ .op0_is_rrr_and_embedded_instructions()
+ .read_E()
+ .reg_mem()
+ .operand_case(66)
+ .bits(),
+ // encode immediates?
+ ModRM_0xc0_Eb_Ib = OperandCodeBuilder::new()
+ .read_modrm()
+ .set_embedded_instructions()
+ .read_E()
+ .byte_operands()
+ .operand_case(5)
+ .bits(),
+ ModRM_0xc1_Ev_Ib = OperandCodeBuilder::new()
+ .read_modrm()
+ .set_embedded_instructions()
+ .read_E()
+ .operand_case(6)
+ .bits(),
+ ModRM_0xd0_Eb_1 = OperandCodeBuilder::new()
+ .read_modrm()
+ .set_embedded_instructions()
+ .read_E()
+ .byte_operands()
+ .operand_case(7)
+ .bits(),
+ ModRM_0xd1_Ev_1 = OperandCodeBuilder::new()
+ .read_modrm()
+ .set_embedded_instructions()
+ .read_E()
+ .operand_case(8)
+ .bits(),
+ ModRM_0xd2_Eb_CL = OperandCodeBuilder::new()
+ .read_modrm()
+ .set_embedded_instructions()
+ .read_E()
+ .byte_operands()
+ .operand_case(9)
+ .bits(),
+ ModRM_0xd3_Ev_CL = OperandCodeBuilder::new()
+ .read_modrm()
+ .set_embedded_instructions()
+ .read_E()
+ .operand_case(10)
+ .bits(),
+ ModRM_0x80_Eb_Ib = OperandCodeBuilder::new()
+ .read_modrm()
+ .set_embedded_instructions()
+ .read_E()
+ .with_imm(false, 0)
+ .byte_operands()
+ .operand_case(1)
+ .bits(),
+ ModRM_0x83_Ev_Ibs = OperandCodeBuilder::new()
+ .read_modrm()
+ .set_embedded_instructions()
+ .read_E()
+ .with_imm(false, 0)
+ .operand_case(26)
+ .bits(),
+ // this would be Eb_Ivs, 0x8e
+ ModRM_0x81_Ev_Ivs = OperandCodeBuilder::new()
+ .read_modrm()
+ .set_embedded_instructions()
+ .read_E()
+ .operand_case(2)
+ .bits(),
+ ModRM_0xc6_Eb_Ib = OperandCodeBuilder::new()
+ .read_modrm()
+ .set_embedded_instructions()
+ .read_E()
+ .byte_operands()
+ .operand_case(3)
+ .bits(),
+ ModRM_0xc7_Ev_Iv = OperandCodeBuilder::new()
+ .read_modrm()
+ .set_embedded_instructions()
+ .read_E()
+ .operand_case(4)
+ .bits(),
+ ModRM_0xfe_Eb = OperandCodeBuilder::new()
+ .read_modrm()
+ .set_embedded_instructions()
+ .read_E()
+ .byte_operands()
+ .operand_case(13)
+ .bits(),
+ ModRM_0x8f_Ev = OperandCodeBuilder::new()
+ .read_modrm()
+ .set_embedded_instructions()
+ .read_E()
+ .operand_case(30)
+ .bits(),
+ // gap, 0x94
+ ModRM_0xff_Ev = OperandCodeBuilder::new()
+ .read_modrm()
+ .set_embedded_instructions()
+ .read_E()
+ .operand_case(14)
+ .bits(),
+ ModRM_0x0f18 = OperandCodeBuilder::new()
+ .read_modrm()
+ .set_embedded_instructions()
+ .read_E()
+ .operand_case(58)
+ .bits(),
+ ModRM_0xf6 = OperandCodeBuilder::new()
+ .read_modrm()
+ .set_embedded_instructions()
+ .read_E()
+ .byte_operands()
+ .operand_case(11)
+ .bits(),
+ ModRM_0xf7 = OperandCodeBuilder::new()
+ .read_modrm()
+ .set_embedded_instructions()
+ .read_E()
+ .operand_case(12)
+ .bits(),
+ Ev = OperandCodeBuilder::new()
+ .read_modrm()
+ .set_embedded_instructions()
+ .read_E()
+ .operand_case(18)
+ .bits(),
+ Zv_R0 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_R, 0).bits(),
+ Zv_R1 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_R, 1).bits(),
+ Zv_R2 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_R, 2).bits(),
+ Zv_R3 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_R, 3).bits(),
+ Zv_R4 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_R, 4).bits(),
+ Zv_R5 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_R, 5).bits(),
+ Zv_R6 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_R, 6).bits(),
+ Zv_R7 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_R, 7).bits(),
+ // Zv_AX_R0 = 0x48,
+ Zv_AX_R1 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_AX, 1).bits(),
+ Zv_AX_R2 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_AX, 2).bits(),
+ Zv_AX_R3 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_AX, 3).bits(),
+ Zv_AX_R4 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_AX, 4).bits(),
+ Zv_AX_R5 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_AX, 5).bits(),
+ Zv_AX_R6 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_AX, 6).bits(),
+ Zv_AX_R7 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_AX, 7).bits(),
+ Zb_Ib_R0 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zb_Ib_R, 0).bits(),
+ Zb_Ib_R1 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zb_Ib_R, 1).bits(),
+ Zb_Ib_R2 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zb_Ib_R, 2).bits(),
+ Zb_Ib_R3 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zb_Ib_R, 3).bits(),
+ Zb_Ib_R4 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zb_Ib_R, 4).bits(),
+ Zb_Ib_R5 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zb_Ib_R, 5).bits(),
+ Zb_Ib_R6 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zb_Ib_R, 6).bits(),
+ Zb_Ib_R7 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zb_Ib_R, 7).bits(),
+ Zv_Iv_R0 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_Iv_R, 0).bits(),
+ Zv_Iv_R1 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_Iv_R, 1).bits(),
+ Zv_Iv_R2 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_Iv_R, 2).bits(),
+ Zv_Iv_R3 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_Iv_R, 3).bits(),
+ Zv_Iv_R4 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_Iv_R, 4).bits(),
+ Zv_Iv_R5 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_Iv_R, 5).bits(),
+ Zv_Iv_R6 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_Iv_R, 6).bits(),
+ Zv_Iv_R7 = OperandCodeBuilder::new().op0_is_rrr_and_Z_operand(ZOperandCategory::Zv_Iv_R, 7).bits(),
+ Gv_Eb = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().operand_case(15).bits(),
+ Gv_Ew = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().operand_case(16).bits(),
+ Gv_Ew_LSL = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().operand_case(37).bits(),
+// Gdq_Ed = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().operand_case(17).bits(),
+ Gd_Ed = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().operand_case(51).bits(),
+ Md_Gd = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().operand_case(52).bits(),
+// Gdq_Ed = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().operand_case(17).bits(),
+ Gd_Ev = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().operand_case(40).bits(),
+// Md_Gd = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().operand_case(51).bits(),
+ G_E_xmm_Ib = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().operand_case(22).bits(),
+ G_E_xmm_Ub = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().operand_case(60).bits(),
+ G_U_xmm_Ub = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().operand_case(61).bits(),
+ AL_Ob = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().operand_case(50).bits(),
+ AL_Xb = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().operand_case(52).bits(),
+ AX_Ov = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().operand_case(53).bits(),
+ AL_Ibs = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().with_imm(false, 0).byte_operands().operand_case(23).bits(),
+ AX_Ivd = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().operand_case(24).bits(),
+
+ Eb_Gb = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().byte_operands().only_modrm_operands().mem_reg().bits(),
+ Ev_Gv = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().only_modrm_operands().mem_reg().bits(),
+ Gb_Eb = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().byte_operands().only_modrm_operands().reg_mem().bits(),
+ Gv_Ev = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().only_modrm_operands().reg_mem().bits(),
+ Gv_M = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().only_modrm_operands().reg_mem().operand_case(25).bits(),
+ MOVDIR64B = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().reg_mem().operand_case(108).bits(),
+ M_Gv = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().reg_mem().operand_case(109).bits(),
+ Gv_Ev_Ib = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().with_imm(false, 0).reg_mem().operand_case(40).bits(),
+
+ Gv_Ev_Iv = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().reg_mem().operand_case(41).bits(),
+ Rv_Gmm_Ib = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_modrm().read_E().reg_mem().operand_case(55).bits(),
+ // gap, 0x9a
+ G_xmm_E_mm = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().reg_mem().operand_case(53).bits(),
+ G_xmm_U_mm = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().reg_mem().operand_case(54).bits(),
+ U_mm_G_xmm = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().mem_reg().operand_case(55).bits(),
+ G_xmm_Ed = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().reg_mem().operand_case(57).bits(),
+ G_mm_E_xmm = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().reg_mem().operand_case(58).bits(),
+ Gd_U_xmm = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().reg_mem().operand_case(59).bits(),
+ Gv_E_xmm = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().reg_mem().operand_case(60).bits(),
+ //= 0x816f, // mirror G_xmm_Ed, but also read an immediate
+ G_xmm_Ew_Ib = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().reg_mem().operand_case(61).bits(),
+ G_U_xmm = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().reg_mem().operand_case(62).bits(),
+ G_M_xmm = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().reg_mem().operand_case(20).bits(),
+ G_E_xmm = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().reg_mem().operand_case(21).bits(),
+ E_G_xmm = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().mem_reg().operand_case(19).bits(),
+ G_Ed_xmm = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().reg_mem().operand_case(31).bits(),
+ Ed_G_xmm = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().mem_reg().operand_case(29).bits(),
+ M_G_xmm = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().mem_reg().operand_case(63).bits(),
+ G_E_mm = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().reg_mem().operand_case(64).bits(),
+ G_U_mm = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().reg_mem().operand_case(65).bits(),
+ E_G_mm = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().mem_reg().operand_case(66).bits(),
+ Ed_G_mm = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().mem_reg().operand_case(67).bits(),
+ // Ed_G_xmm = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().mem_reg().operand_case(68).bits(),
+ G_mm_Ed = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().mem_reg().operand_case(69).bits(),
+ G_mm_E = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().mem_reg().operand_case(70).bits(),
+ Ev_Gv_Ib = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().reg_mem().operand_case(71).bits(),
+ Ev_Gv_CL = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().reg_mem().operand_case(72).bits(),
+ G_mm_U_mm = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().reg_mem().operand_case(73).bits(),
+ G_Mq_mm = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().read_E().reg_mem().operand_case(74).bits(),
+ G_mm_Ew_Ib = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().operand_case(75).bits(),
+ G_E_q = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().operand_case(76).bits(),
+ E_G_q = OperandCodeBuilder::new().op0_is_rrr_and_embedded_instructions().operand_case(77).bits(),
+ CVT_AA = OperandCodeBuilder::new().special_case(77).bits(),
+ CVT_DA = OperandCodeBuilder::new().special_case(78).bits(),
+ Rq_Cq_0 = OperandCodeBuilder::new().special_case(79).bits(),
+ Rq_Dq_0 = OperandCodeBuilder::new().special_case(80).bits(),
+ Cq_Rq_0 = OperandCodeBuilder::new().special_case(81).bits(),
+ Dq_Rq_0 = OperandCodeBuilder::new().special_case(82).bits(),
+ FS = OperandCodeBuilder::new().special_case(83).bits(),
+ GS = OperandCodeBuilder::new().special_case(84).bits(),
+ Yb_DX = OperandCodeBuilder::new().special_case(85).bits(),
+ Yv_DX = OperandCodeBuilder::new().special_case(86).bits(),
+ DX_Xb = OperandCodeBuilder::new().special_case(87).bits(),
+ DX_Xv = OperandCodeBuilder::new().special_case(88).bits(),
+ AH = OperandCodeBuilder::new().special_case(89).bits(),
+ AX_Xv = OperandCodeBuilder::new().special_case(90).bits(),
+ Ew_Sw = OperandCodeBuilder::new().special_case(91).bits(),
+ Fw = OperandCodeBuilder::new().special_case(92).bits(),
+ I_1 = OperandCodeBuilder::new().special_case(93).bits(),
+ Iw = OperandCodeBuilder::new().special_case(94).bits(),
+ Iw_Ib = OperandCodeBuilder::new().special_case(95).bits(),
+ Ob_AL = OperandCodeBuilder::new().special_case(96).bits(),
+ Ov_AX = OperandCodeBuilder::new().special_case(97).bits(),
+ Sw_Ew = OperandCodeBuilder::new().special_case(98).bits(),
+ Yb_AL = OperandCodeBuilder::new().special_case(99).bits(),
+ Yb_Xb = OperandCodeBuilder::new().special_case(100).bits(),
+ Yv_AX = OperandCodeBuilder::new().special_case(101).bits(),
+ Ew_Gw = OperandCodeBuilder::new().special_case(102).bits(),
+ ES = OperandCodeBuilder::new().special_case(103).bits(),
+ CS = OperandCodeBuilder::new().special_case(104).bits(),
+ SS = OperandCodeBuilder::new().special_case(105).bits(),
+ DS = OperandCodeBuilder::new().special_case(106).bits(),
+ ModRM_0x62 = OperandCodeBuilder::new().special_case(107).bits(),
+ INV_Gv_M = OperandCodeBuilder::new().special_case(108).bits(),
+ PMOVX_G_E_xmm = OperandCodeBuilder::new().operand_case(109).bits(),
+ PMOVX_E_G_xmm = OperandCodeBuilder::new().operand_case(110).bits(),
+ G_Ev_xmm_Ib = OperandCodeBuilder::new().operand_case(111).bits(),
+ G_E_mm_Ib = OperandCodeBuilder::new().operand_case(112).bits(),
+}
+
+const LOCKABLE_INSTRUCTIONS: &[Opcode] = &[
+ Opcode::ADD,
+ Opcode::ADC,
+ Opcode::AND,
+ Opcode::BTC,
+ Opcode::BTR,
+ Opcode::BTS,
+ Opcode::CMPXCHG,
+ Opcode::CMPXCHG8B,
+ Opcode::DEC,
+ Opcode::INC,
+ Opcode::NEG,
+ Opcode::NOT,
+ Opcode::OR,
+ Opcode::SBB,
+ Opcode::SUB,
+ Opcode::XOR,
+ Opcode::XADD,
+ Opcode::XCHG,
+];
+
+fn base_opcode_map(v: u8) -> Opcode {
+ match v {
+ 0 => Opcode::ADD,
+ 1 => Opcode::OR,
+ 2 => Opcode::ADC,
+ 3 => Opcode::SBB,
+ 4 => Opcode::AND,
+ 5 => Opcode::SUB,
+ 6 => Opcode::XOR,
+ 7 => Opcode::CMP,
+ _ => { unsafe { unreachable_unchecked() } }
+ }
+}
+
+const BITWISE_OPCODE_MAP: [Opcode; 8] = [
+ Opcode::ROL,
+ Opcode::ROR,
+ Opcode::RCL,
+ Opcode::RCR,
+ Opcode::SHL,
+ Opcode::SHR,
+ Opcode::SAL,
+ Opcode::SAR
+];
+
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+enum Interpretation {
+ Instruction(Opcode),
+ Prefix,
+}
+
+#[derive(Copy, Clone, Debug, PartialEq)]
+// this should be a 32-byte struct..
+struct OpcodeRecord(Interpretation, OperandCode);
+
+#[test]
+fn opcode_record_size() {
+ // there are more than 256 opcodes...
+ assert_eq!(core::mem::size_of::<OpcodeRecord>(), 4);
+}
+
+const OPCODES: [OpcodeRecord; 256] = [
+ OpcodeRecord(Interpretation::Instruction(Opcode::ADD), OperandCode::Eb_Gb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::ADD), OperandCode::Ev_Gv),
+ OpcodeRecord(Interpretation::Instruction(Opcode::ADD), OperandCode::Gb_Eb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::ADD), OperandCode::Gv_Ev),
+ OpcodeRecord(Interpretation::Instruction(Opcode::ADD), OperandCode::AL_Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::ADD), OperandCode::AX_Ivd),
+ OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::ES),
+ OpcodeRecord(Interpretation::Instruction(Opcode::POP), OperandCode::ES),
+ OpcodeRecord(Interpretation::Instruction(Opcode::OR), OperandCode::Eb_Gb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::OR), OperandCode::Ev_Gv),
+ OpcodeRecord(Interpretation::Instruction(Opcode::OR), OperandCode::Gb_Eb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::OR), OperandCode::Gv_Ev),
+ OpcodeRecord(Interpretation::Instruction(Opcode::OR), OperandCode::AL_Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::OR), OperandCode::AX_Ivd),
+ OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::CS),
+ OpcodeRecord(Interpretation::Prefix, OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::ADC), OperandCode::Eb_Gb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::ADC), OperandCode::Ev_Gv),
+ OpcodeRecord(Interpretation::Instruction(Opcode::ADC), OperandCode::Gb_Eb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::ADC), OperandCode::Gv_Ev),
+ OpcodeRecord(Interpretation::Instruction(Opcode::ADC), OperandCode::AL_Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::ADC), OperandCode::AX_Ivd),
+ OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::SS),
+ OpcodeRecord(Interpretation::Instruction(Opcode::POP), OperandCode::SS),
+ OpcodeRecord(Interpretation::Instruction(Opcode::SBB), OperandCode::Eb_Gb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::SBB), OperandCode::Ev_Gv),
+ OpcodeRecord(Interpretation::Instruction(Opcode::SBB), OperandCode::Gb_Eb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::SBB), OperandCode::Gv_Ev),
+ OpcodeRecord(Interpretation::Instruction(Opcode::SBB), OperandCode::AL_Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::SBB), OperandCode::AX_Ivd),
+ OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::DS),
+ OpcodeRecord(Interpretation::Instruction(Opcode::POP), OperandCode::DS),
+ OpcodeRecord(Interpretation::Instruction(Opcode::AND), OperandCode::Eb_Gb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::AND), OperandCode::Ev_Gv),
+ OpcodeRecord(Interpretation::Instruction(Opcode::AND), OperandCode::Gb_Eb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::AND), OperandCode::Gv_Ev),
+ OpcodeRecord(Interpretation::Instruction(Opcode::AND), OperandCode::AL_Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::AND), OperandCode::AX_Ivd),
+ OpcodeRecord(Interpretation::Prefix, OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::DAA), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::SUB), OperandCode::Eb_Gb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::SUB), OperandCode::Ev_Gv),
+ OpcodeRecord(Interpretation::Instruction(Opcode::SUB), OperandCode::Gb_Eb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::SUB), OperandCode::Gv_Ev),
+ OpcodeRecord(Interpretation::Instruction(Opcode::SUB), OperandCode::AL_Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::SUB), OperandCode::AX_Ivd),
+ OpcodeRecord(Interpretation::Prefix, OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::DAS), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::XOR), OperandCode::Eb_Gb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::XOR), OperandCode::Ev_Gv),
+ OpcodeRecord(Interpretation::Instruction(Opcode::XOR), OperandCode::Gb_Eb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::XOR), OperandCode::Gv_Ev),
+ OpcodeRecord(Interpretation::Instruction(Opcode::XOR), OperandCode::AL_Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::XOR), OperandCode::AX_Ivd),
+ OpcodeRecord(Interpretation::Prefix, OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::AAA), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::CMP), OperandCode::Eb_Gb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::CMP), OperandCode::Ev_Gv),
+ OpcodeRecord(Interpretation::Instruction(Opcode::CMP), OperandCode::Gb_Eb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::CMP), OperandCode::Gv_Ev),
+ OpcodeRecord(Interpretation::Instruction(Opcode::CMP), OperandCode::AL_Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::CMP), OperandCode::AX_Ivd),
+ OpcodeRecord(Interpretation::Prefix, OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::AAS), OperandCode::Nothing),
+// 0x40:
+ OpcodeRecord(Interpretation::Instruction(Opcode::INC), OperandCode::Zv_R0),
+ OpcodeRecord(Interpretation::Instruction(Opcode::INC), OperandCode::Zv_R1),
+ OpcodeRecord(Interpretation::Instruction(Opcode::INC), OperandCode::Zv_R2),
+ OpcodeRecord(Interpretation::Instruction(Opcode::INC), OperandCode::Zv_R3),
+ OpcodeRecord(Interpretation::Instruction(Opcode::INC), OperandCode::Zv_R4),
+ OpcodeRecord(Interpretation::Instruction(Opcode::INC), OperandCode::Zv_R5),
+ OpcodeRecord(Interpretation::Instruction(Opcode::INC), OperandCode::Zv_R6),
+ OpcodeRecord(Interpretation::Instruction(Opcode::INC), OperandCode::Zv_R7),
+ OpcodeRecord(Interpretation::Instruction(Opcode::DEC), OperandCode::Zv_R0),
+ OpcodeRecord(Interpretation::Instruction(Opcode::DEC), OperandCode::Zv_R1),
+ OpcodeRecord(Interpretation::Instruction(Opcode::DEC), OperandCode::Zv_R2),
+ OpcodeRecord(Interpretation::Instruction(Opcode::DEC), OperandCode::Zv_R3),
+ OpcodeRecord(Interpretation::Instruction(Opcode::DEC), OperandCode::Zv_R4),
+ OpcodeRecord(Interpretation::Instruction(Opcode::DEC), OperandCode::Zv_R5),
+ OpcodeRecord(Interpretation::Instruction(Opcode::DEC), OperandCode::Zv_R6),
+ OpcodeRecord(Interpretation::Instruction(Opcode::DEC), OperandCode::Zv_R7),
+// 0x50:
+ OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::Zv_R0),
+ OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::Zv_R1),
+ OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::Zv_R2),
+ OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::Zv_R3),
+ OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::Zv_R4),
+ OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::Zv_R5),
+ OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::Zv_R6),
+ OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::Zv_R7),
+ OpcodeRecord(Interpretation::Instruction(Opcode::POP), OperandCode::Zv_R0),
+ OpcodeRecord(Interpretation::Instruction(Opcode::POP), OperandCode::Zv_R1),
+ OpcodeRecord(Interpretation::Instruction(Opcode::POP), OperandCode::Zv_R2),
+ OpcodeRecord(Interpretation::Instruction(Opcode::POP), OperandCode::Zv_R3),
+ OpcodeRecord(Interpretation::Instruction(Opcode::POP), OperandCode::Zv_R4),
+ OpcodeRecord(Interpretation::Instruction(Opcode::POP), OperandCode::Zv_R5),
+ OpcodeRecord(Interpretation::Instruction(Opcode::POP), OperandCode::Zv_R6),
+ OpcodeRecord(Interpretation::Instruction(Opcode::POP), OperandCode::Zv_R7),
+// 0x60
+ OpcodeRecord(Interpretation::Instruction(Opcode::PUSHA), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::POPA), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::BOUND), OperandCode::ModRM_0x62),
+ OpcodeRecord(Interpretation::Instruction(Opcode::ARPL), OperandCode::Ew_Gw),
+ OpcodeRecord(Interpretation::Prefix, OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Prefix, OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Prefix, OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Prefix, OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::Ivs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::IMUL), OperandCode::Gv_Ev_Iv),
+ OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::IMUL), OperandCode::Gv_Ev_Ib),
+ OpcodeRecord(Interpretation::Instruction(Opcode::INS), OperandCode::Yb_DX),
+ OpcodeRecord(Interpretation::Instruction(Opcode::INS), OperandCode::Yv_DX),
+ OpcodeRecord(Interpretation::Instruction(Opcode::OUTS), OperandCode::DX_Xb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::OUTS), OperandCode::DX_Xv),
+// 0x70
+ OpcodeRecord(Interpretation::Instruction(Opcode::JO), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::JNO), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::JB), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::JNB), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::JZ), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::JNZ), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::JNA), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::JA), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::JS), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::JNS), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::JP), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::JNP), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::JL), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::JGE), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::JLE), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::JG), OperandCode::Ibs),
+// 0x80
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x80_Eb_Ib),
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x81_Ev_Ivs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x83_Ev_Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::TEST), OperandCode::Eb_Gb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::TEST), OperandCode::Ev_Gv),
+ OpcodeRecord(Interpretation::Instruction(Opcode::XCHG), OperandCode::Eb_Gb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::XCHG), OperandCode::Ev_Gv),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Eb_Gb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Ev_Gv),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Gb_Eb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Gv_Ev),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Ew_Sw),
+ OpcodeRecord(Interpretation::Instruction(Opcode::LEA), OperandCode::Gv_M),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Sw_Ew),
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x8f_Ev),
+ OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::XCHG), OperandCode::Zv_AX_R1),
+ OpcodeRecord(Interpretation::Instruction(Opcode::XCHG), OperandCode::Zv_AX_R2),
+ OpcodeRecord(Interpretation::Instruction(Opcode::XCHG), OperandCode::Zv_AX_R3),
+ OpcodeRecord(Interpretation::Instruction(Opcode::XCHG), OperandCode::Zv_AX_R4),
+ OpcodeRecord(Interpretation::Instruction(Opcode::XCHG), OperandCode::Zv_AX_R5),
+ OpcodeRecord(Interpretation::Instruction(Opcode::XCHG), OperandCode::Zv_AX_R6),
+ OpcodeRecord(Interpretation::Instruction(Opcode::XCHG), OperandCode::Zv_AX_R7),
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::CVT_AA),
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::CVT_DA),
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::WAIT), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::PUSHF), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::POPF), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::SAHF), OperandCode::AH),
+ OpcodeRecord(Interpretation::Instruction(Opcode::LAHF), OperandCode::AH),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::AL_Ob),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::AX_Ov),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Ob_AL),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Ov_AX),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOVS), OperandCode::Yb_Xb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOVS), OperandCode::Yv_Xv),
+ OpcodeRecord(Interpretation::Instruction(Opcode::CMPS), OperandCode::Yb_Xb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::CMPS), OperandCode::Yv_Xv),
+ OpcodeRecord(Interpretation::Instruction(Opcode::TEST), OperandCode::AL_Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::TEST), OperandCode::AX_Ivd),
+ OpcodeRecord(Interpretation::Instruction(Opcode::STOS), OperandCode::Yb_AL),
+ OpcodeRecord(Interpretation::Instruction(Opcode::STOS), OperandCode::Yv_AX),
+ OpcodeRecord(Interpretation::Instruction(Opcode::LODS), OperandCode::AL_Xb),
+ OpcodeRecord(Interpretation::Instruction(Opcode::LODS), OperandCode::AX_Xv),
+ OpcodeRecord(Interpretation::Instruction(Opcode::SCAS), OperandCode::Yb_AL),
+ OpcodeRecord(Interpretation::Instruction(Opcode::SCAS), OperandCode::Yv_AX),
+// 0xb0
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Zb_Ib_R0),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Zb_Ib_R1),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Zb_Ib_R2),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Zb_Ib_R3),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Zb_Ib_R4),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Zb_Ib_R5),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Zb_Ib_R6),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Zb_Ib_R7),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Zv_Iv_R0),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Zv_Iv_R1),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Zv_Iv_R2),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Zv_Iv_R3),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Zv_Iv_R4),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Zv_Iv_R5),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Zv_Iv_R6),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Zv_Iv_R7),
+// 0xc0
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0xc0_Eb_Ib),
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0xc1_Ev_Ib),
+ OpcodeRecord(Interpretation::Instruction(Opcode::RETURN), OperandCode::Iw),
+ OpcodeRecord(Interpretation::Instruction(Opcode::RETURN), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::LES), OperandCode::ModRM_0xc4),
+ OpcodeRecord(Interpretation::Instruction(Opcode::LDS), OperandCode::ModRM_0xc5),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::ModRM_0xc6_Eb_Ib),
+ OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::ModRM_0xc7_Ev_Iv),
+ OpcodeRecord(Interpretation::Instruction(Opcode::ENTER), OperandCode::Iw_Ib),
+ OpcodeRecord(Interpretation::Instruction(Opcode::LEAVE), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::RETF), OperandCode::Iw),
+ OpcodeRecord(Interpretation::Instruction(Opcode::RETF), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::INT), OperandCode::I_3),
+ OpcodeRecord(Interpretation::Instruction(Opcode::INT), OperandCode::Ib),
+ OpcodeRecord(Interpretation::Instruction(Opcode::INTO), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::IRET), OperandCode::Fw),
+// 0xd0
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0xd0_Eb_1),
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0xd1_Ev_1),
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0xd2_Eb_CL),
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0xd3_Ev_CL),
+ OpcodeRecord(Interpretation::Instruction(Opcode::AAM), OperandCode::Ib),
+ OpcodeRecord(Interpretation::Instruction(Opcode::AAD), OperandCode::Ib),
+ OpcodeRecord(Interpretation::Instruction(Opcode::SALC), OperandCode::Nothing),
+ // XLAT
+ OpcodeRecord(Interpretation::Instruction(Opcode::XLAT), OperandCode::Nothing),
+ // x86 d8
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::x87_d8),
+ // x86 d9
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::x87_d9),
+ // x86 da
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::x87_da),
+ // x86 db
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::x87_db),
+ // x86 dc
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::x87_dc),
+ // x86 dd
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::x87_dd),
+ // x86 de
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::x87_de),
+ // x86 df
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::x87_df),
+// 0xe0
+ OpcodeRecord(Interpretation::Instruction(Opcode::LOOPNZ), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::LOOPZ), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::LOOP), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::JCXZ), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::IN), OperandCode::AL_Ib),
+ OpcodeRecord(Interpretation::Instruction(Opcode::IN), OperandCode::AX_Ib),
+ OpcodeRecord(Interpretation::Instruction(Opcode::OUT), OperandCode::Ib_AL),
+ OpcodeRecord(Interpretation::Instruction(Opcode::OUT), OperandCode::Ib_AX),
+// 0xe8
+ OpcodeRecord(Interpretation::Instruction(Opcode::CALL), OperandCode::Jvds),
+ OpcodeRecord(Interpretation::Instruction(Opcode::JMP), OperandCode::Jvds),
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::JMP), OperandCode::Ibs),
+ OpcodeRecord(Interpretation::Instruction(Opcode::IN), OperandCode::AL_DX),
+ OpcodeRecord(Interpretation::Instruction(Opcode::IN), OperandCode::AX_DX),
+ OpcodeRecord(Interpretation::Instruction(Opcode::OUT), OperandCode::DX_AL),
+ OpcodeRecord(Interpretation::Instruction(Opcode::OUT), OperandCode::DX_AX),
+// 0xf0
+ OpcodeRecord(Interpretation::Prefix, OperandCode::Nothing),
+ // ICEBP?
+ OpcodeRecord(Interpretation::Instruction(Opcode::INT), OperandCode::I_1),
+ OpcodeRecord(Interpretation::Prefix, OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Prefix, OperandCode::Nothing),
+// 0xf4
+ OpcodeRecord(Interpretation::Instruction(Opcode::HLT), OperandCode::Nothing),
+ // CMC
+ OpcodeRecord(Interpretation::Instruction(Opcode::CMC), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0xf6),
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0xf7),
+ OpcodeRecord(Interpretation::Instruction(Opcode::CLC), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::STC), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::CLI), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::STI), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::CLD), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::STD), OperandCode::Nothing),
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0xfe_Eb),
+ // TODO: test 0xff /3
+ OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0xff_Ev),
+];
+
+#[allow(non_snake_case)]
+pub(self) fn read_E<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpeax_arch::Arch>::Word>>(words: &mut T, instr: &mut Instruction, modrm: u8, width: u8) -> Result<OperandSpec, DecodeError> {
+ let bank = width_to_gp_reg_bank(width);
+ if modrm >= 0b11000000 {
+ read_modrm_reg(instr, modrm, bank)
+ } else {
+ read_M(words, instr, modrm)
+ }
+}
+#[allow(non_snake_case)]
+pub(self) fn read_E_mm<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpeax_arch::Arch>::Word>>(words: &mut T, instr: &mut Instruction, modrm: u8) -> Result<OperandSpec, DecodeError> {
+ if modrm >= 0b11000000 {
+ read_modrm_reg(instr, modrm, RegisterBank::MM)
+ } else {
+ read_M(words, instr, modrm)
+ }
+}
+#[allow(non_snake_case)]
+pub(self) fn read_E_st<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpeax_arch::Arch>::Word>>(words: &mut T, instr: &mut Instruction, modrm: u8) -> Result<OperandSpec, DecodeError> {
+ if modrm >= 0b11000000 {
+ read_modrm_reg(instr, modrm, RegisterBank::ST)
+ } else {
+ read_M(words, instr, modrm)
+ }
+}
+#[allow(non_snake_case)]
+pub(self) fn read_E_xmm<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpeax_arch::Arch>::Word>>(words: &mut T, instr: &mut Instruction, modrm: u8) -> Result<OperandSpec, DecodeError> {
+ if modrm >= 0b11000000 {
+ read_modrm_reg(instr, modrm, RegisterBank::X)
+ } else {
+ read_M(words, instr, modrm)
+ }
+}
+#[allow(non_snake_case)]
+pub(self) fn read_E_ymm<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpeax_arch::Arch>::Word>>(words: &mut T, instr: &mut Instruction, modrm: u8) -> Result<OperandSpec, DecodeError> {
+ if modrm >= 0b11000000 {
+ read_modrm_reg(instr, modrm, RegisterBank::Y)
+ } else {
+ read_M(words, instr, modrm)
+ }
+}
+#[allow(non_snake_case)]
+pub(self) fn read_E_vex<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpeax_arch::Arch>::Word>>(words: &mut T, instr: &mut Instruction, modrm: u8, bank: RegisterBank) -> Result<OperandSpec, DecodeError> {
+ if modrm >= 0b11000000 {
+ read_modrm_reg(instr, modrm, bank)
+ } else {
+ let res = read_M(words, instr, modrm)?;
+ if (modrm & 0b01_000_000) == 0b01_000_000 {
+ instr.prefixes.apply_compressed_disp(true);
+ }
+ Ok(res)
+ }
+}
+
+#[allow(non_snake_case)]
+fn read_modrm_reg(instr: &mut Instruction, modrm: u8, reg_bank: RegisterBank) -> Result<OperandSpec, DecodeError> {
+ instr.regs[1] = RegSpec::from_parts(modrm & 7, reg_bank);
+ Ok(OperandSpec::RegMMM)
+}
+
+#[allow(non_snake_case)]
+fn read_sib<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpeax_arch::Arch>::Word>>(words: &mut T, instr: &mut Instruction, modrm: u8) -> Result<OperandSpec, DecodeError> {
+ let modbits = modrm >> 6;
+ let sibbyte = words.next().ok().ok_or(DecodeError::ExhaustedInput)?;
+ instr.regs[1].num |= sibbyte & 7;
+ instr.regs[2].num |= (sibbyte >> 3) & 7;
+
+ let disp = if modbits == 0b00 {
+ if (sibbyte & 7) == 0b101 {
+ read_num(words, 4)? as i32
+ } else {
+ 0
+ }
+ } else if modbits == 0b01 {
+ read_num(words, 1)? as i8 as i32
+ } else {
+ read_num(words, 4)? as i32
+ };
+ instr.disp = disp as u32;
+
+ let scale = 1u8 << (sibbyte >> 6);
+ instr.scale = scale;
+
+ let op_spec = if (sibbyte & 7) == 0b101 {
+ if ((sibbyte >> 3) & 7) == 0b100 {
+ if modbits == 0b00 {
+ OperandSpec::DispU32
+ } else {
+ instr.regs[1].num |= 0b101;
+
+ if disp == 0 {
+ OperandSpec::Deref
+ } else {
+ OperandSpec::RegDisp
+ }
+ }
+ } else {
+ instr.regs[1].num |= 0b101;
+ instr.regs[2].num |= (sibbyte >> 3) & 7;
+
+ let scale = 1u8 << (sibbyte >> 6);
+ instr.scale = scale;
+
+ if disp == 0 {
+ if modbits == 0 {
+ OperandSpec::RegScale
+ } else {
+ OperandSpec::RegIndexBaseScale
+ }
+ } else {
+ if modbits == 0 {
+ OperandSpec::RegScaleDisp
+ } else {
+ OperandSpec::RegIndexBaseScaleDisp
+ }
+ }
+ }
+ } else {
+ instr.regs[1].num |= sibbyte & 7;
+
+ if ((sibbyte >> 3) & 7) == 0b100 {
+ if disp == 0 {
+ OperandSpec::Deref
+ } else {
+ OperandSpec::RegDisp
+ }
+ } else {
+ instr.regs[2].num |= (sibbyte >> 3) & 7;
+
+ let scale = 1u8 << (sibbyte >> 6);
+ instr.scale = scale;
+ if disp == 0 {
+ OperandSpec::RegIndexBaseScale
+ } else {
+ OperandSpec::RegIndexBaseScaleDisp
+ }
+ }
+ };
+ Ok(op_spec)
+}
+
+#[allow(non_snake_case)]
+fn read_M_16bit<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpeax_arch::Arch>::Word>>(words: &mut T, instr: &mut Instruction, modrm: u8) -> Result<OperandSpec, DecodeError> {
+ let modbits = modrm >> 6;
+ let mmm = modrm & 7;
+ if modbits == 0b00 && mmm == 0b110 {
+ return Ok(OperandSpec::DispU16);
+ }
+ match mmm {
+ 0b000 => {
+ instr.regs[1] = RegSpec::bx();
+ instr.regs[2] = RegSpec::si();
+ },
+ 0b001 => {
+ instr.regs[1] = RegSpec::bx();
+ instr.regs[2] = RegSpec::di();
+ },
+ 0b010 => {
+ instr.regs[1] = RegSpec::bp();
+ instr.regs[2] = RegSpec::si();
+ },
+ 0b011 => {
+ instr.regs[1] = RegSpec::bp();
+ instr.regs[2] = RegSpec::di();
+ },
+ 0b100 => {
+ instr.regs[1] = RegSpec::si();
+ },
+ 0b101 => {
+ instr.regs[1] = RegSpec::di();
+ },
+ 0b110 => {
+ instr.regs[1] = RegSpec::bp();
+ },
+ 0b111 => {
+ instr.regs[1] = RegSpec::bx();
+ },
+ _ => { unreachable!("impossible bit pattern"); }
+ }
+ match modbits {
+ 0b00 => {
+ if mmm > 3 {
+ Ok(OperandSpec::Deref)
+ } else {
+ Ok(OperandSpec::RegIndexBase)
+ }
+ },
+ 0b01 => {
+ instr.disp = read_num(words, 1)? as i8 as i32 as u32;
+ if mmm > 3 {
+ if instr.disp != 0 {
+ Ok(OperandSpec::RegDisp)
+ } else {
+ Ok(OperandSpec::Deref)
+ }
+ } else {
+ if instr.disp != 0 {
+ Ok(OperandSpec::RegIndexBaseDisp)
+ } else {
+ Ok(OperandSpec::RegIndexBase)
+ }
+ }
+ },
+ 0b10 => {
+ instr.disp = read_num(words, 2)? as i16 as i32 as u32;
+ if mmm > 3 {
+ if instr.disp != 0 {
+ Ok(OperandSpec::RegDisp)
+ } else {
+ Ok(OperandSpec::Deref)
+ }
+ } else {
+ if instr.disp != 0 {
+ Ok(OperandSpec::RegIndexBaseDisp)
+ } else {
+ Ok(OperandSpec::RegIndexBase)
+ }
+ }
+ },
+ _ => {
+ unreachable!("read_M_16but but mod bits were not a memory operand");
+ }
+ }
+}
+
+#[allow(non_snake_case)]
+fn read_M<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpeax_arch::Arch>::Word>>(words: &mut T, instr: &mut Instruction, modrm: u8) -> Result<OperandSpec, DecodeError> {
+ // by default read M as a 16-bit size address
+ if !instr.prefixes.address_size() {
+ return read_M_16bit(words, instr, modrm);
+ }
+ instr.regs[1].bank = RegisterBank::D;
+ let modbits = modrm >> 6;
+ let mmm = modrm & 7;
+ let op_spec = if mmm == 4 {
+ return read_sib(words, instr, modrm);
+ } else if mmm == 5 && modbits == 0b00 {
+ instr.disp = read_num(words, 4)?;
+ OperandSpec::DispU32
+ } else {
+ instr.regs[1].num |= mmm;
+
+ if modbits == 0b00 {
+ OperandSpec::Deref
+ } else {
+ let disp = if modbits == 0b01 {
+ read_num(words, 1)? as i8 as i32
+ } else {
+ read_num(words, 4)? as i32
+ };
+ if disp == 0 {
+ OperandSpec::Deref
+ } else {
+ instr.disp = disp as i32 as u32;
+ OperandSpec::RegDisp
+ }
+ }
+ };
+ Ok(op_spec)
+}
+
+#[inline]
+fn width_to_gp_reg_bank(width: u8) -> RegisterBank {
+ match width {
+ 1 => return RegisterBank::B,
+ 2 => return RegisterBank::W,
+ 4 => return RegisterBank::D,
+ _ => unsafe { unreachable_unchecked(); }
+ }
+}
+
+fn read_0f_opcode(opcode: u8, prefixes: &mut Prefixes) -> OpcodeRecord {
+ // seems like f2 takes priority, then f3, then 66, then "no prefix". for SOME instructions an
+ // invalid prefix is in fact an invalid instruction. so just duplicate for the four kinds of
+ // opcode lists.
+ if prefixes.repnz() {
+ match opcode {
+ 0x00 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f00),
+ 0x01 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f01),
+ 0x02 => OpcodeRecord(Interpretation::Instruction(Opcode::LAR), OperandCode::Gv_Ew),
+ 0x03 => OpcodeRecord(Interpretation::Instruction(Opcode::LSL), OperandCode::Gv_Ew_LSL),
+ 0x04 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x05 => OpcodeRecord(Interpretation::Instruction(Opcode::SYSCALL), OperandCode::Nothing),
+ 0x06 => OpcodeRecord(Interpretation::Instruction(Opcode::CLTS), OperandCode::Nothing),
+ 0x07 => OpcodeRecord(Interpretation::Instruction(Opcode::SYSRET), OperandCode::Nothing),
+ 0x08 => OpcodeRecord(Interpretation::Instruction(Opcode::INVD), OperandCode::Nothing),
+ 0x09 => OpcodeRecord(Interpretation::Instruction(Opcode::WBINVD), OperandCode::Nothing),
+ 0x0a => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x0b => OpcodeRecord(Interpretation::Instruction(Opcode::UD2), OperandCode::Nothing),
+ 0x0c => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x0d => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f0d),
+ 0x0e => OpcodeRecord(Interpretation::Instruction(Opcode::FEMMS), OperandCode::Nothing),
+ 0x0f => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f0f),
+
+ 0x10 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVSD), OperandCode::PMOVX_G_E_xmm),
+ 0x11 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVSD), OperandCode::PMOVX_E_G_xmm),
+ 0x12 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVDDUP), OperandCode::PMOVX_G_E_xmm),
+ 0x13 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x14 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x15 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x16 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x17 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x18 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f18),
+ 0x19 => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1a => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1b => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1c => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1d => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1e => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1f => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+// 0x20
+ 0x20 => OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Rq_Cq_0),
+ 0x21 => OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Rq_Dq_0),
+ 0x22 => OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Cq_Rq_0),
+ 0x23 => OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Dq_Rq_0),
+ 0x24 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x25 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x26 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x27 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x28 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x29 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x2a => OpcodeRecord(Interpretation::Instruction(Opcode::CVTSI2SD), OperandCode::G_xmm_Ed),
+ 0x2b => OpcodeRecord(Interpretation::Instruction(Opcode::MOVNTSD), OperandCode::M_G_xmm),
+ 0x2c => OpcodeRecord(Interpretation::Instruction(Opcode::CVTTSD2SI), OperandCode::PMOVX_G_E_xmm),
+ 0x2d => OpcodeRecord(Interpretation::Instruction(Opcode::CVTSD2SI), OperandCode::PMOVX_G_E_xmm),
+ 0x2e => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x2f => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+
+ 0x30 => OpcodeRecord(Interpretation::Instruction(Opcode::WRMSR), OperandCode::Nothing),
+ 0x31 => OpcodeRecord(Interpretation::Instruction(Opcode::RDTSC), OperandCode::Nothing),
+ 0x32 => OpcodeRecord(Interpretation::Instruction(Opcode::RDMSR), OperandCode::Nothing),
+ 0x33 => OpcodeRecord(Interpretation::Instruction(Opcode::RDPMC), OperandCode::Nothing),
+ 0x34 => OpcodeRecord(Interpretation::Instruction(Opcode::SYSENTER), OperandCode::Nothing),
+ 0x35 => OpcodeRecord(Interpretation::Instruction(Opcode::SYSEXIT), OperandCode::Nothing),
+ 0x36 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x37 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x38 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing), // handled before getting to `read_0f_opcode`
+ 0x39 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x3a => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing), // handled before getting to `read_0f_opcode`
+ 0x3b => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x3c => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x3d => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x3e => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x3f => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+
+ 0x40 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVO), OperandCode::Gv_Ev),
+ 0x41 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNO), OperandCode::Gv_Ev),
+ 0x42 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVB), OperandCode::Gv_Ev),
+ 0x43 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNB), OperandCode::Gv_Ev),
+ 0x44 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVZ), OperandCode::Gv_Ev),
+ 0x45 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNZ), OperandCode::Gv_Ev),
+ 0x46 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNA), OperandCode::Gv_Ev),
+ 0x47 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVA), OperandCode::Gv_Ev),
+ 0x48 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVS), OperandCode::Gv_Ev),
+ 0x49 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNS), OperandCode::Gv_Ev),
+ 0x4a => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVP), OperandCode::Gv_Ev),
+ 0x4b => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNP), OperandCode::Gv_Ev),
+ 0x4c => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVL), OperandCode::Gv_Ev),
+ 0x4d => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVGE), OperandCode::Gv_Ev),
+ 0x4e => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVLE), OperandCode::Gv_Ev),
+ 0x4f => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVG), OperandCode::Gv_Ev),
+
+ 0x50 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x51 => OpcodeRecord(Interpretation::Instruction(Opcode::SQRTSD), OperandCode::PMOVX_G_E_xmm),
+ 0x52 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x53 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x54 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x55 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x56 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x57 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x58 => OpcodeRecord(Interpretation::Instruction(Opcode::ADDSD), OperandCode::PMOVX_G_E_xmm),
+ 0x59 => OpcodeRecord(Interpretation::Instruction(Opcode::MULSD), OperandCode::PMOVX_G_E_xmm),
+ 0x5a => OpcodeRecord(Interpretation::Instruction(Opcode::CVTSD2SS), OperandCode::PMOVX_G_E_xmm),
+ 0x5b => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x5c => OpcodeRecord(Interpretation::Instruction(Opcode::SUBSD), OperandCode::PMOVX_G_E_xmm),
+ 0x5d => OpcodeRecord(Interpretation::Instruction(Opcode::MINSD), OperandCode::PMOVX_G_E_xmm),
+ 0x5e => OpcodeRecord(Interpretation::Instruction(Opcode::DIVSD), OperandCode::PMOVX_G_E_xmm),
+ 0x5f => OpcodeRecord(Interpretation::Instruction(Opcode::MAXSD), OperandCode::PMOVX_G_E_xmm),
+
+ 0x60 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x61 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x62 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x63 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x64 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x65 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x66 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x67 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x68 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x69 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x6a => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x6b => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x6c => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x6d => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x6e => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x6f => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+
+ 0x70 => OpcodeRecord(Interpretation::Instruction(Opcode::PSHUFLW), OperandCode::G_E_xmm_Ib),
+ 0x71 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing), // no f2-0f71 instructions, so we can stop early
+ 0x72 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing), // no f2-0f72 instructions, so we can stop early
+ 0x73 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing), // no f2-0f73 instructions, so we can stop early
+ 0x74 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x75 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x76 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x77 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x78 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0xf20f78),
+ 0x79 => OpcodeRecord(Interpretation::Instruction(Opcode::INSERTQ), OperandCode::G_U_xmm),
+ 0x7a => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x7b => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x7c => OpcodeRecord(Interpretation::Instruction(Opcode::HADDPS), OperandCode::G_E_xmm),
+ 0x7d => OpcodeRecord(Interpretation::Instruction(Opcode::HSUBPS), OperandCode::G_E_xmm),
+ 0x7e => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x7f => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+// 0x80
+ 0x80 => OpcodeRecord(Interpretation::Instruction(Opcode::JO), OperandCode::Jvds),
+ 0x81 => OpcodeRecord(Interpretation::Instruction(Opcode::JNO), OperandCode::Jvds),
+ 0x82 => OpcodeRecord(Interpretation::Instruction(Opcode::JB), OperandCode::Jvds),
+ 0x83 => OpcodeRecord(Interpretation::Instruction(Opcode::JNB), OperandCode::Jvds),
+ 0x84 => OpcodeRecord(Interpretation::Instruction(Opcode::JZ), OperandCode::Jvds),
+ 0x85 => OpcodeRecord(Interpretation::Instruction(Opcode::JNZ), OperandCode::Jvds),
+ 0x86 => OpcodeRecord(Interpretation::Instruction(Opcode::JNA), OperandCode::Jvds),
+ 0x87 => OpcodeRecord(Interpretation::Instruction(Opcode::JA), OperandCode::Jvds),
+ 0x88 => OpcodeRecord(Interpretation::Instruction(Opcode::JS), OperandCode::Jvds),
+ 0x89 => OpcodeRecord(Interpretation::Instruction(Opcode::JNS), OperandCode::Jvds),
+ 0x8a => OpcodeRecord(Interpretation::Instruction(Opcode::JP), OperandCode::Jvds),
+ 0x8b => OpcodeRecord(Interpretation::Instruction(Opcode::JNP), OperandCode::Jvds),
+ 0x8c => OpcodeRecord(Interpretation::Instruction(Opcode::JL), OperandCode::Jvds),
+ 0x8d => OpcodeRecord(Interpretation::Instruction(Opcode::JGE), OperandCode::Jvds),
+ 0x8e => OpcodeRecord(Interpretation::Instruction(Opcode::JLE), OperandCode::Jvds),
+ 0x8f => OpcodeRecord(Interpretation::Instruction(Opcode::JG), OperandCode::Jvds),
+
+// 0x90
+ 0x90 => OpcodeRecord(Interpretation::Instruction(Opcode::SETO), OperandCode::Eb_R0),
+ 0x91 => OpcodeRecord(Interpretation::Instruction(Opcode::SETNO), OperandCode::Eb_R0),
+ 0x92 => OpcodeRecord(Interpretation::Instruction(Opcode::SETB), OperandCode::Eb_R0),
+ 0x93 => OpcodeRecord(Interpretation::Instruction(Opcode::SETAE), OperandCode::Eb_R0),
+ 0x94 => OpcodeRecord(Interpretation::Instruction(Opcode::SETZ), OperandCode::Eb_R0),
+ 0x95 => OpcodeRecord(Interpretation::Instruction(Opcode::SETNZ), OperandCode::Eb_R0),
+ 0x96 => OpcodeRecord(Interpretation::Instruction(Opcode::SETBE), OperandCode::Eb_R0),
+ 0x97 => OpcodeRecord(Interpretation::Instruction(Opcode::SETA), OperandCode::Eb_R0),
+ 0x98 => OpcodeRecord(Interpretation::Instruction(Opcode::SETS), OperandCode::Eb_R0),
+ 0x99 => OpcodeRecord(Interpretation::Instruction(Opcode::SETNS), OperandCode::Eb_R0),
+ 0x9a => OpcodeRecord(Interpretation::Instruction(Opcode::SETP), OperandCode::Eb_R0),
+ 0x9b => OpcodeRecord(Interpretation::Instruction(Opcode::SETNP), OperandCode::Eb_R0),
+ 0x9c => OpcodeRecord(Interpretation::Instruction(Opcode::SETL), OperandCode::Eb_R0),
+ 0x9d => OpcodeRecord(Interpretation::Instruction(Opcode::SETGE), OperandCode::Eb_R0),
+ 0x9e => OpcodeRecord(Interpretation::Instruction(Opcode::SETLE), OperandCode::Eb_R0),
+ 0x9f => OpcodeRecord(Interpretation::Instruction(Opcode::SETG), OperandCode::Eb_R0),
+
+// 0xa0
+ 0xa0 => OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::FS),
+ 0xa1 => OpcodeRecord(Interpretation::Instruction(Opcode::POP), OperandCode::FS),
+ 0xa2 => OpcodeRecord(Interpretation::Instruction(Opcode::CPUID), OperandCode::Nothing),
+ 0xa3 => OpcodeRecord(Interpretation::Instruction(Opcode::BT), OperandCode::Ev_Gv),
+ 0xa4 => OpcodeRecord(Interpretation::Instruction(Opcode::SHLD), OperandCode::Ev_Gv_Ib),
+ 0xa5 => OpcodeRecord(Interpretation::Instruction(Opcode::SHLD), OperandCode::Ev_Gv_CL),
+ 0xa6 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xa7 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xa8 => OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::GS),
+ 0xa9 => OpcodeRecord(Interpretation::Instruction(Opcode::POP), OperandCode::GS),
+ 0xaa => OpcodeRecord(Interpretation::Instruction(Opcode::RSM), OperandCode::Nothing),
+ 0xab => OpcodeRecord(Interpretation::Instruction(Opcode::BTS), OperandCode::Ev_Gv),
+ 0xac => OpcodeRecord(Interpretation::Instruction(Opcode::SHRD), OperandCode::Ev_Gv_Ib),
+ 0xad => OpcodeRecord(Interpretation::Instruction(Opcode::SHRD), OperandCode::Ev_Gv_CL),
+ 0xae => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0fae),
+ 0xaf => OpcodeRecord(Interpretation::Instruction(Opcode::IMUL), OperandCode::Gv_Ev),
+
+// 0xb0
+ 0xb0 => OpcodeRecord(Interpretation::Instruction(Opcode::CMPXCHG), OperandCode::Eb_Gb),
+ 0xb1 => OpcodeRecord(Interpretation::Instruction(Opcode::CMPXCHG), OperandCode::Ev_Gv),
+ 0xb2 => OpcodeRecord(Interpretation::Instruction(Opcode::LSS), OperandCode::INV_Gv_M),
+ 0xb3 => OpcodeRecord(Interpretation::Instruction(Opcode::BTR), OperandCode::Ev_Gv),
+ 0xb4 => OpcodeRecord(Interpretation::Instruction(Opcode::LFS), OperandCode::INV_Gv_M),
+ 0xb5 => OpcodeRecord(Interpretation::Instruction(Opcode::LGS), OperandCode::INV_Gv_M),
+ 0xb6 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVZX), OperandCode::Gv_Eb),
+ 0xb7 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVZX), OperandCode::Gv_Ew),
+ 0xb8 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xb9 => OpcodeRecord(Interpretation::Instruction(Opcode::UD1), OperandCode::Gv_Ev),
+ 0xba => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0fba),
+ 0xbb => OpcodeRecord(Interpretation::Instruction(Opcode::BTC), OperandCode::Ev_Gv),
+ 0xbc => OpcodeRecord(Interpretation::Instruction(Opcode::BSF), OperandCode::Gv_Ev),
+ 0xbd => OpcodeRecord(Interpretation::Instruction(Opcode::BSR), OperandCode::Gv_Ev),
+ 0xbe => OpcodeRecord(Interpretation::Instruction(Opcode::MOVSX), OperandCode::Gv_Eb),
+ 0xbf => OpcodeRecord(Interpretation::Instruction(Opcode::MOVSX), OperandCode::Gv_Ew),
+// 0xc0
+ 0xc0 => OpcodeRecord(Interpretation::Instruction(Opcode::XADD), OperandCode::Eb_Gb),
+ 0xc1 => OpcodeRecord(Interpretation::Instruction(Opcode::XADD), OperandCode::Ev_Gv),
+ 0xc2 => OpcodeRecord(Interpretation::Instruction(Opcode::CMPSD), OperandCode::G_E_xmm_Ib),
+ 0xc3 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xc4 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xc5 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xc6 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xc7 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0fc7), // cmpxchg permits an f2 prefix, which is the only reason this entry is not `Nothing`
+ 0xc8 => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R0),
+ 0xc9 => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R1),
+ 0xca => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R2),
+ 0xcb => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R3),
+ 0xcc => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R4),
+ 0xcd => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R5),
+ 0xce => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R6),
+ 0xcf => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R7),
+
+ 0xd0 => OpcodeRecord(Interpretation::Instruction(Opcode::ADDSUBPS), OperandCode::G_E_xmm),
+ 0xd1 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xd2 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xd3 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xd4 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xd5 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xd6 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVDQ2Q), OperandCode::U_mm_G_xmm),
+ 0xd7 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xd8 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xd9 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xda => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xdb => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xdc => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xdd => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xde => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xdf => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+// 0xe0
+ 0xe0 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xe1 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xe2 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xe3 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xe4 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xe5 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xe6 => OpcodeRecord(Interpretation::Instruction(Opcode::CVTPD2DQ), OperandCode::G_E_xmm),
+ 0xe7 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xe8 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xe9 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xea => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xeb => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xec => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xed => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xee => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xef => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+
+ 0xf0 => OpcodeRecord(Interpretation::Instruction(Opcode::LDDQU), OperandCode::G_M_xmm),
+ 0xf1 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xf2 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xf3 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xf4 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xf5 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xf6 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xf7 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xf8 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xf9 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xfa => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xfb => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xfc => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xfd => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xfe => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xff => OpcodeRecord(Interpretation::Instruction(Opcode::UD0), OperandCode::Gd_Ed),
+ }
+ } else if prefixes.rep() {
+ match opcode {
+ 0x00 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f00),
+ 0x01 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f01),
+ 0x02 => OpcodeRecord(Interpretation::Instruction(Opcode::LAR), OperandCode::Gv_Ew),
+ 0x03 => OpcodeRecord(Interpretation::Instruction(Opcode::LSL), OperandCode::Gv_Ew_LSL),
+ 0x04 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x05 => OpcodeRecord(Interpretation::Instruction(Opcode::SYSCALL), OperandCode::Nothing),
+ 0x06 => OpcodeRecord(Interpretation::Instruction(Opcode::CLTS), OperandCode::Nothing),
+ 0x07 => OpcodeRecord(Interpretation::Instruction(Opcode::SYSRET), OperandCode::Nothing),
+ 0x08 => OpcodeRecord(Interpretation::Instruction(Opcode::INVD), OperandCode::Nothing),
+ 0x09 => OpcodeRecord(Interpretation::Instruction(Opcode::WBINVD), OperandCode::Nothing),
+ 0x0a => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x0b => OpcodeRecord(Interpretation::Instruction(Opcode::UD2), OperandCode::Nothing),
+ 0x0c => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x0d => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f0d),
+ 0x0e => OpcodeRecord(Interpretation::Instruction(Opcode::FEMMS), OperandCode::Nothing),
+ 0x0f => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f0f),
+
+ 0x10 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVSS), OperandCode::G_Ed_xmm),
+ 0x11 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVSS), OperandCode::Ed_G_xmm),
+ 0x12 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVSLDUP), OperandCode::G_E_xmm),
+ 0x13 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x14 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x15 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x16 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVSHDUP), OperandCode::G_E_xmm),
+ 0x17 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x18 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f18),
+ 0x19 => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1a => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1b => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1c => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1d => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1e => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1f => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+
+ 0x20 => OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Rq_Cq_0),
+ 0x21 => OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Rq_Dq_0),
+ 0x22 => OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Cq_Rq_0),
+ 0x23 => OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Dq_Rq_0),
+ 0x24 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x25 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x26 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x27 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x28 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x29 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x2a => OpcodeRecord(Interpretation::Instruction(Opcode::CVTSI2SS), OperandCode::G_xmm_Ed),
+ 0x2b => OpcodeRecord(Interpretation::Instruction(Opcode::MOVNTSS), OperandCode::M_G_xmm),
+ 0x2c => OpcodeRecord(Interpretation::Instruction(Opcode::CVTTSS2SI), OperandCode::Gv_E_xmm),
+ 0x2d => OpcodeRecord(Interpretation::Instruction(Opcode::CVTSS2SI), OperandCode::Gv_E_xmm),
+ 0x2e => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x2f => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+
+ 0x30 => OpcodeRecord(Interpretation::Instruction(Opcode::WRMSR), OperandCode::Nothing),
+ 0x31 => OpcodeRecord(Interpretation::Instruction(Opcode::RDTSC), OperandCode::Nothing),
+ 0x32 => OpcodeRecord(Interpretation::Instruction(Opcode::RDMSR), OperandCode::Nothing),
+ 0x33 => OpcodeRecord(Interpretation::Instruction(Opcode::RDPMC), OperandCode::Nothing),
+ 0x34 => OpcodeRecord(Interpretation::Instruction(Opcode::SYSENTER), OperandCode::Nothing),
+ 0x35 => OpcodeRecord(Interpretation::Instruction(Opcode::SYSEXIT), OperandCode::Nothing),
+ 0x36 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x37 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x38 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing), // handled before getting to `read_0f_opcode`
+ 0x39 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x3a => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing), // handled before getting to `read_0f_opcode`
+ 0x3b => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x3c => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x3d => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x3e => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x3f => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+
+ 0x40 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVO), OperandCode::Gv_Ev),
+ 0x41 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNO), OperandCode::Gv_Ev),
+ 0x42 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVB), OperandCode::Gv_Ev),
+ 0x43 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNB), OperandCode::Gv_Ev),
+ 0x44 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVZ), OperandCode::Gv_Ev),
+ 0x45 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNZ), OperandCode::Gv_Ev),
+ 0x46 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNA), OperandCode::Gv_Ev),
+ 0x47 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVA), OperandCode::Gv_Ev),
+ 0x48 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVS), OperandCode::Gv_Ev),
+ 0x49 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNS), OperandCode::Gv_Ev),
+ 0x4a => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVP), OperandCode::Gv_Ev),
+ 0x4b => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNP), OperandCode::Gv_Ev),
+ 0x4c => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVL), OperandCode::Gv_Ev),
+ 0x4d => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVGE), OperandCode::Gv_Ev),
+ 0x4e => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVLE), OperandCode::Gv_Ev),
+ 0x4f => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVG), OperandCode::Gv_Ev),
+// 0x50
+ 0x50 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x51 => OpcodeRecord(Interpretation::Instruction(Opcode::SQRTSS), OperandCode::G_Ed_xmm),
+ 0x52 => OpcodeRecord(Interpretation::Instruction(Opcode::RSQRTSS), OperandCode::G_Ed_xmm),
+ 0x53 => OpcodeRecord(Interpretation::Instruction(Opcode::RCPSS), OperandCode::G_Ed_xmm),
+ 0x54 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x55 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x56 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x57 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x58 => OpcodeRecord(Interpretation::Instruction(Opcode::ADDSS), OperandCode::G_Ed_xmm),
+ 0x59 => OpcodeRecord(Interpretation::Instruction(Opcode::MULSS), OperandCode::G_Ed_xmm),
+ 0x5a => OpcodeRecord(Interpretation::Instruction(Opcode::CVTSS2SD), OperandCode::PMOVX_G_E_xmm),
+ 0x5b => OpcodeRecord(Interpretation::Instruction(Opcode::CVTTPS2DQ), OperandCode::G_E_xmm),
+ 0x5c => OpcodeRecord(Interpretation::Instruction(Opcode::SUBSS), OperandCode::G_Ed_xmm),
+ 0x5d => OpcodeRecord(Interpretation::Instruction(Opcode::MINSS), OperandCode::G_Ed_xmm),
+ 0x5e => OpcodeRecord(Interpretation::Instruction(Opcode::DIVSS), OperandCode::G_Ed_xmm),
+ 0x5f => OpcodeRecord(Interpretation::Instruction(Opcode::MAXSS), OperandCode::G_Ed_xmm),
+// 0x60
+ 0x60 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x61 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x62 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x63 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x64 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x65 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x66 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x67 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x68 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x69 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x6a => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x6b => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x6c => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x6d => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x6e => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x6f => OpcodeRecord(Interpretation::Instruction(Opcode::MOVDQU), OperandCode::G_E_xmm),
+// 0x70
+ 0x70 => OpcodeRecord(Interpretation::Instruction(Opcode::PSHUFHW), OperandCode::G_E_xmm_Ib),
+ 0x71 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing), // no f3-0f71 instructions, so we can stop early
+ 0x72 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing), // no f3-0f72 instructions, so we can stop early
+ 0x73 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing), // no f3-0f73 instructions, so we can stop early
+ 0x74 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x75 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x76 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x77 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x78 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x79 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x7a => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x7b => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x7c => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x7d => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x7e => OpcodeRecord(Interpretation::Instruction(Opcode::MOVQ), OperandCode::MOVQ_f30f),
+ 0x7f => OpcodeRecord(Interpretation::Instruction(Opcode::MOVDQU), OperandCode::E_G_xmm),
+// 0x80
+ 0x80 => OpcodeRecord(Interpretation::Instruction(Opcode::JO), OperandCode::Jvds),
+ 0x81 => OpcodeRecord(Interpretation::Instruction(Opcode::JNO), OperandCode::Jvds),
+ 0x82 => OpcodeRecord(Interpretation::Instruction(Opcode::JB), OperandCode::Jvds),
+ 0x83 => OpcodeRecord(Interpretation::Instruction(Opcode::JNB), OperandCode::Jvds),
+ 0x84 => OpcodeRecord(Interpretation::Instruction(Opcode::JZ), OperandCode::Jvds),
+ 0x85 => OpcodeRecord(Interpretation::Instruction(Opcode::JNZ), OperandCode::Jvds),
+ 0x86 => OpcodeRecord(Interpretation::Instruction(Opcode::JNA), OperandCode::Jvds),
+ 0x87 => OpcodeRecord(Interpretation::Instruction(Opcode::JA), OperandCode::Jvds),
+ 0x88 => OpcodeRecord(Interpretation::Instruction(Opcode::JS), OperandCode::Jvds),
+ 0x89 => OpcodeRecord(Interpretation::Instruction(Opcode::JNS), OperandCode::Jvds),
+ 0x8a => OpcodeRecord(Interpretation::Instruction(Opcode::JP), OperandCode::Jvds),
+ 0x8b => OpcodeRecord(Interpretation::Instruction(Opcode::JNP), OperandCode::Jvds),
+ 0x8c => OpcodeRecord(Interpretation::Instruction(Opcode::JL), OperandCode::Jvds),
+ 0x8d => OpcodeRecord(Interpretation::Instruction(Opcode::JGE), OperandCode::Jvds),
+ 0x8e => OpcodeRecord(Interpretation::Instruction(Opcode::JLE), OperandCode::Jvds),
+ 0x8f => OpcodeRecord(Interpretation::Instruction(Opcode::JG), OperandCode::Jvds),
+
+// 0x90
+ 0x90 => OpcodeRecord(Interpretation::Instruction(Opcode::SETO), OperandCode::Eb_R0),
+ 0x91 => OpcodeRecord(Interpretation::Instruction(Opcode::SETNO), OperandCode::Eb_R0),
+ 0x92 => OpcodeRecord(Interpretation::Instruction(Opcode::SETB), OperandCode::Eb_R0),
+ 0x93 => OpcodeRecord(Interpretation::Instruction(Opcode::SETAE), OperandCode::Eb_R0),
+ 0x94 => OpcodeRecord(Interpretation::Instruction(Opcode::SETZ), OperandCode::Eb_R0),
+ 0x95 => OpcodeRecord(Interpretation::Instruction(Opcode::SETNZ), OperandCode::Eb_R0),
+ 0x96 => OpcodeRecord(Interpretation::Instruction(Opcode::SETBE), OperandCode::Eb_R0),
+ 0x97 => OpcodeRecord(Interpretation::Instruction(Opcode::SETA), OperandCode::Eb_R0),
+ 0x98 => OpcodeRecord(Interpretation::Instruction(Opcode::SETS), OperandCode::Eb_R0),
+ 0x99 => OpcodeRecord(Interpretation::Instruction(Opcode::SETNS), OperandCode::Eb_R0),
+ 0x9a => OpcodeRecord(Interpretation::Instruction(Opcode::SETP), OperandCode::Eb_R0),
+ 0x9b => OpcodeRecord(Interpretation::Instruction(Opcode::SETNP), OperandCode::Eb_R0),
+ 0x9c => OpcodeRecord(Interpretation::Instruction(Opcode::SETL), OperandCode::Eb_R0),
+ 0x9d => OpcodeRecord(Interpretation::Instruction(Opcode::SETGE), OperandCode::Eb_R0),
+ 0x9e => OpcodeRecord(Interpretation::Instruction(Opcode::SETLE), OperandCode::Eb_R0),
+ 0x9f => OpcodeRecord(Interpretation::Instruction(Opcode::SETG), OperandCode::Eb_R0),
+
+// 0xa0
+ 0xa0 => OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::FS),
+ 0xa1 => OpcodeRecord(Interpretation::Instruction(Opcode::POP), OperandCode::FS),
+ 0xa2 => OpcodeRecord(Interpretation::Instruction(Opcode::CPUID), OperandCode::Nothing),
+ 0xa3 => OpcodeRecord(Interpretation::Instruction(Opcode::BT), OperandCode::Ev_Gv),
+ 0xa4 => OpcodeRecord(Interpretation::Instruction(Opcode::SHLD), OperandCode::Ev_Gv_Ib),
+ 0xa5 => OpcodeRecord(Interpretation::Instruction(Opcode::SHLD), OperandCode::Ev_Gv_CL),
+ 0xa6 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xa7 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xa8 => OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::GS),
+ 0xa9 => OpcodeRecord(Interpretation::Instruction(Opcode::POP), OperandCode::GS),
+ 0xaa => OpcodeRecord(Interpretation::Instruction(Opcode::RSM), OperandCode::Nothing),
+ 0xab => OpcodeRecord(Interpretation::Instruction(Opcode::BTS), OperandCode::Ev_Gv),
+ 0xac => OpcodeRecord(Interpretation::Instruction(Opcode::SHRD), OperandCode::Ev_Gv_Ib),
+ 0xad => OpcodeRecord(Interpretation::Instruction(Opcode::SHRD), OperandCode::Ev_Gv_CL),
+ 0xae => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0fae),
+ 0xaf => OpcodeRecord(Interpretation::Instruction(Opcode::IMUL), OperandCode::Gv_Ev),
+
+// 0xb0
+ 0xb0 => OpcodeRecord(Interpretation::Instruction(Opcode::CMPXCHG), OperandCode::Eb_Gb),
+ 0xb1 => OpcodeRecord(Interpretation::Instruction(Opcode::CMPXCHG), OperandCode::Ev_Gv),
+ 0xb2 => OpcodeRecord(Interpretation::Instruction(Opcode::LSS), OperandCode::INV_Gv_M),
+ 0xb3 => OpcodeRecord(Interpretation::Instruction(Opcode::BTR), OperandCode::Ev_Gv),
+ 0xb4 => OpcodeRecord(Interpretation::Instruction(Opcode::LFS), OperandCode::INV_Gv_M),
+ 0xb5 => OpcodeRecord(Interpretation::Instruction(Opcode::LGS), OperandCode::INV_Gv_M),
+ 0xb6 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVZX), OperandCode::Gv_Eb),
+ 0xb7 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVZX), OperandCode::Gv_Ew),
+ 0xb8 => OpcodeRecord(Interpretation::Instruction(Opcode::POPCNT), OperandCode::Gv_Ev),
+ 0xb9 => OpcodeRecord(Interpretation::Instruction(Opcode::UD1), OperandCode::Gv_Ev),
+ 0xba => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0fba),
+ 0xbb => OpcodeRecord(Interpretation::Instruction(Opcode::BTC), OperandCode::Ev_Gv),
+ 0xbc => OpcodeRecord(Interpretation::Instruction(Opcode::TZCNT), OperandCode::Gv_Ev),
+ 0xbd => OpcodeRecord(Interpretation::Instruction(Opcode::LZCNT), OperandCode::Gv_Ev),
+ 0xbe => OpcodeRecord(Interpretation::Instruction(Opcode::MOVSX), OperandCode::Gv_Eb),
+ 0xbf => OpcodeRecord(Interpretation::Instruction(Opcode::MOVSX), OperandCode::Gv_Ew),
+// 0xc0
+ 0xc0 => OpcodeRecord(Interpretation::Instruction(Opcode::XADD), OperandCode::Eb_Gb),
+ 0xc1 => OpcodeRecord(Interpretation::Instruction(Opcode::XADD), OperandCode::Ev_Gv),
+ 0xc2 => OpcodeRecord(Interpretation::Instruction(Opcode::CMPSS), OperandCode::G_E_xmm_Ib),
+ 0xc3 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xc4 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xc5 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xc6 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xc7 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0fc7),
+ 0xc8 => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R0),
+ 0xc9 => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R1),
+ 0xca => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R2),
+ 0xcb => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R3),
+ 0xcc => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R4),
+ 0xcd => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R5),
+ 0xce => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R6),
+ 0xcf => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R7),
+
+ 0xd0 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xd1 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xd2 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xd3 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xd4 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xd5 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xd6 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVQ2DQ), OperandCode::G_xmm_U_mm),
+ 0xd7 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xd8 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xd9 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xda => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xdb => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xdc => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xdd => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xde => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xdf => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+// 0xe0
+ 0xe0 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xe1 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xe2 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xe3 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xe4 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xe5 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xe6 => OpcodeRecord(Interpretation::Instruction(Opcode::CVTDQ2PD), OperandCode::G_E_xmm),
+ 0xe7 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xe8 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xe9 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xea => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xeb => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xec => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xed => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xee => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xef => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+// 0xf0
+ 0xf0 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xf1 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xf2 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xf3 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xf4 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xf5 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xf6 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xf7 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xf8 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xf9 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xfa => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xfb => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xfc => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xfd => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xfe => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xff => OpcodeRecord(Interpretation::Instruction(Opcode::UD0), OperandCode::Gd_Ed),
+ }
+ } else if prefixes.operand_size() {
+ match opcode {
+ 0x00 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f00),
+ 0x01 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f01),
+ 0x02 => OpcodeRecord(Interpretation::Instruction(Opcode::LAR), OperandCode::Gv_Ew),
+ 0x03 => OpcodeRecord(Interpretation::Instruction(Opcode::LSL), OperandCode::Gv_Ew_LSL),
+ 0x04 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x05 => OpcodeRecord(Interpretation::Instruction(Opcode::SYSCALL), OperandCode::Nothing),
+ 0x06 => OpcodeRecord(Interpretation::Instruction(Opcode::CLTS), OperandCode::Nothing),
+ 0x07 => OpcodeRecord(Interpretation::Instruction(Opcode::SYSRET), OperandCode::Nothing),
+ 0x08 => OpcodeRecord(Interpretation::Instruction(Opcode::INVD), OperandCode::Nothing),
+ 0x09 => OpcodeRecord(Interpretation::Instruction(Opcode::WBINVD), OperandCode::Nothing),
+ 0x0a => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x0b => OpcodeRecord(Interpretation::Instruction(Opcode::UD2), OperandCode::Nothing),
+ 0x0c => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x0d => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f0d),
+ 0x0e => OpcodeRecord(Interpretation::Instruction(Opcode::FEMMS), OperandCode::Nothing),
+ 0x0f => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f0f),
+
+ 0x10 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVUPD), OperandCode::G_E_xmm),
+ 0x11 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVUPD), OperandCode::E_G_xmm),
+ 0x12 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVLPD), OperandCode::PMOVX_G_E_xmm),
+ 0x13 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVLPD), OperandCode::PMOVX_E_G_xmm),
+ 0x14 => OpcodeRecord(Interpretation::Instruction(Opcode::UNPCKLPD), OperandCode::G_E_xmm),
+ 0x15 => OpcodeRecord(Interpretation::Instruction(Opcode::UNPCKHPD), OperandCode::G_E_xmm),
+ 0x16 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVHPD), OperandCode::PMOVX_G_E_xmm),
+ 0x17 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVHPD), OperandCode::PMOVX_E_G_xmm),
+ 0x18 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f18),
+ 0x19 => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1a => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1b => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1c => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1d => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1e => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1f => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+
+ 0x20 => OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Rq_Cq_0),
+ 0x21 => OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Rq_Dq_0),
+ 0x22 => OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Cq_Rq_0),
+ 0x23 => OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Dq_Rq_0),
+ 0x24 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x25 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x26 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x27 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x28 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVAPD), OperandCode::G_E_xmm),
+ 0x29 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVAPD), OperandCode::E_G_xmm),
+ 0x2a => OpcodeRecord(Interpretation::Instruction(Opcode::CVTPI2PD), OperandCode::G_xmm_E_mm),
+ 0x2b => OpcodeRecord(Interpretation::Instruction(Opcode::MOVNTPD), OperandCode::M_G_xmm),
+ 0x2c => OpcodeRecord(Interpretation::Instruction(Opcode::CVTTPD2PI), OperandCode::G_mm_E_xmm),
+ 0x2d => OpcodeRecord(Interpretation::Instruction(Opcode::CVTPD2PI), OperandCode::G_mm_E_xmm),
+ 0x2e => OpcodeRecord(Interpretation::Instruction(Opcode::UCOMISD), OperandCode::PMOVX_G_E_xmm),
+ 0x2f => OpcodeRecord(Interpretation::Instruction(Opcode::COMISD), OperandCode::PMOVX_G_E_xmm),
+
+ 0x30 => OpcodeRecord(Interpretation::Instruction(Opcode::WRMSR), OperandCode::Nothing),
+ 0x31 => OpcodeRecord(Interpretation::Instruction(Opcode::RDTSC), OperandCode::Nothing),
+ 0x32 => OpcodeRecord(Interpretation::Instruction(Opcode::RDMSR), OperandCode::Nothing),
+ 0x33 => OpcodeRecord(Interpretation::Instruction(Opcode::RDPMC), OperandCode::Nothing),
+ 0x34 => OpcodeRecord(Interpretation::Instruction(Opcode::SYSENTER), OperandCode::Nothing),
+ 0x35 => OpcodeRecord(Interpretation::Instruction(Opcode::SYSEXIT), OperandCode::Nothing),
+ 0x36 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x37 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x38 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing), // handled before getting to `read_0f_opcode`
+ 0x39 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x3a => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing), // handled before getting to `read_0f_opcode`
+ 0x3b => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x3c => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x3d => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x3e => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x3f => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+
+ 0x40 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVO), OperandCode::Gv_Ev),
+ 0x41 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNO), OperandCode::Gv_Ev),
+ 0x42 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVB), OperandCode::Gv_Ev),
+ 0x43 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNB), OperandCode::Gv_Ev),
+ 0x44 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVZ), OperandCode::Gv_Ev),
+ 0x45 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNZ), OperandCode::Gv_Ev),
+ 0x46 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNA), OperandCode::Gv_Ev),
+ 0x47 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVA), OperandCode::Gv_Ev),
+ 0x48 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVS), OperandCode::Gv_Ev),
+ 0x49 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNS), OperandCode::Gv_Ev),
+ 0x4a => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVP), OperandCode::Gv_Ev),
+ 0x4b => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNP), OperandCode::Gv_Ev),
+ 0x4c => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVL), OperandCode::Gv_Ev),
+ 0x4d => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVGE), OperandCode::Gv_Ev),
+ 0x4e => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVLE), OperandCode::Gv_Ev),
+ 0x4f => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVG), OperandCode::Gv_Ev),
+ 0x50 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVMSKPD), OperandCode::Gd_U_xmm),
+ 0x51 => OpcodeRecord(Interpretation::Instruction(Opcode::SQRTPD), OperandCode::G_E_xmm),
+ 0x52 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x53 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x54 => OpcodeRecord(Interpretation::Instruction(Opcode::ANDPD), OperandCode::G_E_xmm),
+ 0x55 => OpcodeRecord(Interpretation::Instruction(Opcode::ANDNPD), OperandCode::G_E_xmm),
+ 0x56 => OpcodeRecord(Interpretation::Instruction(Opcode::ORPD), OperandCode::G_E_xmm),
+ 0x57 => OpcodeRecord(Interpretation::Instruction(Opcode::XORPD), OperandCode::G_E_xmm),
+ 0x58 => OpcodeRecord(Interpretation::Instruction(Opcode::ADDPD), OperandCode::G_E_xmm),
+ 0x59 => OpcodeRecord(Interpretation::Instruction(Opcode::MULPD), OperandCode::G_E_xmm),
+ 0x5a => OpcodeRecord(Interpretation::Instruction(Opcode::CVTPD2PS), OperandCode::G_E_xmm),
+ 0x5b => OpcodeRecord(Interpretation::Instruction(Opcode::CVTPS2DQ), OperandCode::G_E_xmm),
+ 0x5c => OpcodeRecord(Interpretation::Instruction(Opcode::SUBPD), OperandCode::G_E_xmm),
+ 0x5d => OpcodeRecord(Interpretation::Instruction(Opcode::MINPD), OperandCode::G_E_xmm),
+ 0x5e => OpcodeRecord(Interpretation::Instruction(Opcode::DIVPD), OperandCode::G_E_xmm),
+ 0x5f => OpcodeRecord(Interpretation::Instruction(Opcode::MAXPD), OperandCode::G_E_xmm),
+ 0x60 => OpcodeRecord(Interpretation::Instruction(Opcode::PUNPCKLBW), OperandCode::G_E_xmm),
+ 0x61 => OpcodeRecord(Interpretation::Instruction(Opcode::PUNPCKLWD), OperandCode::G_E_xmm),
+ 0x62 => OpcodeRecord(Interpretation::Instruction(Opcode::PUNPCKLDQ), OperandCode::G_E_xmm),
+ 0x63 => OpcodeRecord(Interpretation::Instruction(Opcode::PACKSSWB), OperandCode::G_E_xmm),
+ 0x64 => OpcodeRecord(Interpretation::Instruction(Opcode::PCMPGTB), OperandCode::G_E_xmm),
+ 0x65 => OpcodeRecord(Interpretation::Instruction(Opcode::PCMPGTW), OperandCode::G_E_xmm),
+ 0x66 => OpcodeRecord(Interpretation::Instruction(Opcode::PCMPGTD), OperandCode::G_E_xmm),
+ 0x67 => OpcodeRecord(Interpretation::Instruction(Opcode::PACKUSWB), OperandCode::G_E_xmm),
+ 0x68 => OpcodeRecord(Interpretation::Instruction(Opcode::PUNPCKHBW), OperandCode::G_E_xmm),
+ 0x69 => OpcodeRecord(Interpretation::Instruction(Opcode::PUNPCKHWD), OperandCode::G_E_xmm),
+ 0x6a => OpcodeRecord(Interpretation::Instruction(Opcode::PUNPCKHDQ), OperandCode::G_E_xmm),
+ 0x6b => OpcodeRecord(Interpretation::Instruction(Opcode::PACKSSDW), OperandCode::G_E_xmm),
+ 0x6c => OpcodeRecord(Interpretation::Instruction(Opcode::PUNPCKLQDQ), OperandCode::G_E_xmm),
+ 0x6d => OpcodeRecord(Interpretation::Instruction(Opcode::PUNPCKHQDQ), OperandCode::G_E_xmm),
+ 0x6e => OpcodeRecord(Interpretation::Instruction(Opcode::MOVD), OperandCode::G_xmm_Ed),
+ 0x6f => OpcodeRecord(Interpretation::Instruction(Opcode::MOVDQA), OperandCode::G_E_xmm),
+ 0x70 => OpcodeRecord(Interpretation::Instruction(Opcode::PSHUFD), OperandCode::G_E_xmm_Ib),
+ 0x71 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f71),
+ 0x72 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f72),
+ 0x73 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f73),
+ 0x74 => OpcodeRecord(Interpretation::Instruction(Opcode::PCMPEQB), OperandCode::G_E_xmm),
+ 0x75 => OpcodeRecord(Interpretation::Instruction(Opcode::PCMPEQW), OperandCode::G_E_xmm),
+ 0x76 => OpcodeRecord(Interpretation::Instruction(Opcode::PCMPEQD), OperandCode::G_E_xmm),
+ 0x77 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x78 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x660f78),
+ 0x79 => OpcodeRecord(Interpretation::Instruction(Opcode::EXTRQ), OperandCode::G_U_xmm),
+ 0x7a => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x7b => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x7c => OpcodeRecord(Interpretation::Instruction(Opcode::HADDPD), OperandCode::G_E_xmm),
+ 0x7d => OpcodeRecord(Interpretation::Instruction(Opcode::HSUBPD), OperandCode::G_E_xmm),
+ 0x7e => OpcodeRecord(Interpretation::Instruction(Opcode::MOVD), OperandCode::Ed_G_xmm),
+ 0x7f => OpcodeRecord(Interpretation::Instruction(Opcode::MOVDQA), OperandCode::E_G_xmm),
+// 0x80
+ 0x80 => OpcodeRecord(Interpretation::Instruction(Opcode::JO), OperandCode::Jvds),
+ 0x81 => OpcodeRecord(Interpretation::Instruction(Opcode::JNO), OperandCode::Jvds),
+ 0x82 => OpcodeRecord(Interpretation::Instruction(Opcode::JB), OperandCode::Jvds),
+ 0x83 => OpcodeRecord(Interpretation::Instruction(Opcode::JNB), OperandCode::Jvds),
+ 0x84 => OpcodeRecord(Interpretation::Instruction(Opcode::JZ), OperandCode::Jvds),
+ 0x85 => OpcodeRecord(Interpretation::Instruction(Opcode::JNZ), OperandCode::Jvds),
+ 0x86 => OpcodeRecord(Interpretation::Instruction(Opcode::JNA), OperandCode::Jvds),
+ 0x87 => OpcodeRecord(Interpretation::Instruction(Opcode::JA), OperandCode::Jvds),
+ 0x88 => OpcodeRecord(Interpretation::Instruction(Opcode::JS), OperandCode::Jvds),
+ 0x89 => OpcodeRecord(Interpretation::Instruction(Opcode::JNS), OperandCode::Jvds),
+ 0x8a => OpcodeRecord(Interpretation::Instruction(Opcode::JP), OperandCode::Jvds),
+ 0x8b => OpcodeRecord(Interpretation::Instruction(Opcode::JNP), OperandCode::Jvds),
+ 0x8c => OpcodeRecord(Interpretation::Instruction(Opcode::JL), OperandCode::Jvds),
+ 0x8d => OpcodeRecord(Interpretation::Instruction(Opcode::JGE), OperandCode::Jvds),
+ 0x8e => OpcodeRecord(Interpretation::Instruction(Opcode::JLE), OperandCode::Jvds),
+ 0x8f => OpcodeRecord(Interpretation::Instruction(Opcode::JG), OperandCode::Jvds),
+
+// 0x90
+ 0x90 => OpcodeRecord(Interpretation::Instruction(Opcode::SETO), OperandCode::Eb_R0),
+ 0x91 => OpcodeRecord(Interpretation::Instruction(Opcode::SETNO), OperandCode::Eb_R0),
+ 0x92 => OpcodeRecord(Interpretation::Instruction(Opcode::SETB), OperandCode::Eb_R0),
+ 0x93 => OpcodeRecord(Interpretation::Instruction(Opcode::SETAE), OperandCode::Eb_R0),
+ 0x94 => OpcodeRecord(Interpretation::Instruction(Opcode::SETZ), OperandCode::Eb_R0),
+ 0x95 => OpcodeRecord(Interpretation::Instruction(Opcode::SETNZ), OperandCode::Eb_R0),
+ 0x96 => OpcodeRecord(Interpretation::Instruction(Opcode::SETBE), OperandCode::Eb_R0),
+ 0x97 => OpcodeRecord(Interpretation::Instruction(Opcode::SETA), OperandCode::Eb_R0),
+ 0x98 => OpcodeRecord(Interpretation::Instruction(Opcode::SETS), OperandCode::Eb_R0),
+ 0x99 => OpcodeRecord(Interpretation::Instruction(Opcode::SETNS), OperandCode::Eb_R0),
+ 0x9a => OpcodeRecord(Interpretation::Instruction(Opcode::SETP), OperandCode::Eb_R0),
+ 0x9b => OpcodeRecord(Interpretation::Instruction(Opcode::SETNP), OperandCode::Eb_R0),
+ 0x9c => OpcodeRecord(Interpretation::Instruction(Opcode::SETL), OperandCode::Eb_R0),
+ 0x9d => OpcodeRecord(Interpretation::Instruction(Opcode::SETGE), OperandCode::Eb_R0),
+ 0x9e => OpcodeRecord(Interpretation::Instruction(Opcode::SETLE), OperandCode::Eb_R0),
+ 0x9f => OpcodeRecord(Interpretation::Instruction(Opcode::SETG), OperandCode::Eb_R0),
+
+// 0xa0
+ 0xa0 => OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::FS),
+ 0xa1 => OpcodeRecord(Interpretation::Instruction(Opcode::POP), OperandCode::FS),
+ 0xa2 => OpcodeRecord(Interpretation::Instruction(Opcode::CPUID), OperandCode::Nothing),
+ 0xa3 => OpcodeRecord(Interpretation::Instruction(Opcode::BT), OperandCode::Ev_Gv),
+ 0xa4 => OpcodeRecord(Interpretation::Instruction(Opcode::SHLD), OperandCode::Ev_Gv_Ib),
+ 0xa5 => OpcodeRecord(Interpretation::Instruction(Opcode::SHLD), OperandCode::Ev_Gv_CL),
+ 0xa6 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xa7 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xa8 => OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::GS),
+ 0xa9 => OpcodeRecord(Interpretation::Instruction(Opcode::POP), OperandCode::GS),
+ 0xaa => OpcodeRecord(Interpretation::Instruction(Opcode::RSM), OperandCode::Nothing),
+ 0xab => OpcodeRecord(Interpretation::Instruction(Opcode::BTS), OperandCode::Ev_Gv),
+ 0xac => OpcodeRecord(Interpretation::Instruction(Opcode::SHRD), OperandCode::Ev_Gv_Ib),
+ 0xad => OpcodeRecord(Interpretation::Instruction(Opcode::SHRD), OperandCode::Ev_Gv_CL),
+ 0xae => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0fae),
+ 0xaf => OpcodeRecord(Interpretation::Instruction(Opcode::IMUL), OperandCode::Gv_Ev),
+
+// 0xb0
+ 0xb0 => OpcodeRecord(Interpretation::Instruction(Opcode::CMPXCHG), OperandCode::Eb_Gb),
+ 0xb1 => OpcodeRecord(Interpretation::Instruction(Opcode::CMPXCHG), OperandCode::Ev_Gv),
+ 0xb2 => OpcodeRecord(Interpretation::Instruction(Opcode::LSS), OperandCode::Gv_M),
+ 0xb3 => OpcodeRecord(Interpretation::Instruction(Opcode::BTR), OperandCode::Ev_Gv),
+ 0xb4 => OpcodeRecord(Interpretation::Instruction(Opcode::LFS), OperandCode::Gv_M),
+ 0xb5 => OpcodeRecord(Interpretation::Instruction(Opcode::LGS), OperandCode::Gv_M),
+ 0xb6 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVZX), OperandCode::Gv_Eb),
+ 0xb7 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVZX), OperandCode::Gv_Ew),
+ 0xb8 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xb9 => OpcodeRecord(Interpretation::Instruction(Opcode::UD1), OperandCode::Gv_Ev),
+ 0xba => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0fba),
+ 0xbb => OpcodeRecord(Interpretation::Instruction(Opcode::BTC), OperandCode::Ev_Gv),
+ 0xbc => OpcodeRecord(Interpretation::Instruction(Opcode::BSF), OperandCode::Gv_Ev),
+ 0xbd => OpcodeRecord(Interpretation::Instruction(Opcode::BSR), OperandCode::Gv_Ev),
+ 0xbe => OpcodeRecord(Interpretation::Instruction(Opcode::MOVSX), OperandCode::Gv_Eb),
+ 0xbf => OpcodeRecord(Interpretation::Instruction(Opcode::MOVSX), OperandCode::Gv_Ew),
+// 0xc0
+ 0xc0 => OpcodeRecord(Interpretation::Instruction(Opcode::XADD), OperandCode::Eb_Gb),
+ 0xc1 => OpcodeRecord(Interpretation::Instruction(Opcode::XADD), OperandCode::Ev_Gv),
+ 0xc2 => OpcodeRecord(Interpretation::Instruction(Opcode::CMPPD), OperandCode::G_E_xmm_Ib),
+ 0xc3 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xc4 => OpcodeRecord(Interpretation::Instruction(Opcode::PINSRW), OperandCode::G_xmm_Ew_Ib),
+ 0xc5 => OpcodeRecord(Interpretation::Instruction(Opcode::PEXTRW), OperandCode::G_U_xmm_Ub),
+ 0xc6 => OpcodeRecord(Interpretation::Instruction(Opcode::SHUFPD), OperandCode::G_E_xmm_Ib),
+ 0xc7 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0fc7),
+ 0xc8 => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R0),
+ 0xc9 => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R1),
+ 0xca => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R2),
+ 0xcb => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R3),
+ 0xcc => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R4),
+ 0xcd => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R5),
+ 0xce => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R6),
+ 0xcf => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R7),
+// 0xd0
+ 0xd0 => OpcodeRecord(Interpretation::Instruction(Opcode::ADDSUBPD), OperandCode::G_E_xmm),
+ 0xd1 => OpcodeRecord(Interpretation::Instruction(Opcode::PSRLW), OperandCode::G_E_xmm),
+ 0xd2 => OpcodeRecord(Interpretation::Instruction(Opcode::PSRLD), OperandCode::G_E_xmm),
+ 0xd3 => OpcodeRecord(Interpretation::Instruction(Opcode::PSRLQ), OperandCode::G_E_xmm),
+ 0xd4 => OpcodeRecord(Interpretation::Instruction(Opcode::PADDQ), OperandCode::G_E_xmm),
+ 0xd5 => OpcodeRecord(Interpretation::Instruction(Opcode::PMULLW), OperandCode::G_E_xmm),
+ 0xd6 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVQ), OperandCode::PMOVX_E_G_xmm),
+ 0xd7 => OpcodeRecord(Interpretation::Instruction(Opcode::PMOVMSKB), OperandCode::Gd_U_xmm),
+ 0xd8 => OpcodeRecord(Interpretation::Instruction(Opcode::PSUBUSB), OperandCode::G_E_xmm),
+ 0xd9 => OpcodeRecord(Interpretation::Instruction(Opcode::PSUBUSW), OperandCode::G_E_xmm),
+ 0xda => OpcodeRecord(Interpretation::Instruction(Opcode::PMINUB), OperandCode::G_E_xmm),
+ 0xdb => OpcodeRecord(Interpretation::Instruction(Opcode::PAND), OperandCode::G_E_xmm),
+ 0xdc => OpcodeRecord(Interpretation::Instruction(Opcode::PADDUSB), OperandCode::G_E_xmm),
+ 0xdd => OpcodeRecord(Interpretation::Instruction(Opcode::PADDUSW), OperandCode::G_E_xmm),
+ 0xde => OpcodeRecord(Interpretation::Instruction(Opcode::PMAXUB), OperandCode::G_E_xmm),
+ 0xdf => OpcodeRecord(Interpretation::Instruction(Opcode::PANDN), OperandCode::G_E_xmm),
+// 0xe0
+ 0xe0 => OpcodeRecord(Interpretation::Instruction(Opcode::PAVGB), OperandCode::G_E_xmm),
+ 0xe1 => OpcodeRecord(Interpretation::Instruction(Opcode::PSRAW), OperandCode::G_E_xmm),
+ 0xe2 => OpcodeRecord(Interpretation::Instruction(Opcode::PSRAD), OperandCode::G_E_xmm),
+ 0xe3 => OpcodeRecord(Interpretation::Instruction(Opcode::PAVGW), OperandCode::G_E_xmm),
+ 0xe4 => OpcodeRecord(Interpretation::Instruction(Opcode::PMULHUW), OperandCode::G_E_xmm),
+ 0xe5 => OpcodeRecord(Interpretation::Instruction(Opcode::PMULHW), OperandCode::G_E_xmm),
+ 0xe6 => OpcodeRecord(Interpretation::Instruction(Opcode::CVTTPD2DQ), OperandCode::G_E_xmm),
+ 0xe7 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVNTDQ), OperandCode::M_G_xmm),
+ 0xe8 => OpcodeRecord(Interpretation::Instruction(Opcode::PSUBSB), OperandCode::G_E_xmm),
+ 0xe9 => OpcodeRecord(Interpretation::Instruction(Opcode::PSUBSW), OperandCode::G_E_xmm),
+ 0xea => OpcodeRecord(Interpretation::Instruction(Opcode::PMINSW), OperandCode::G_E_xmm),
+ 0xeb => OpcodeRecord(Interpretation::Instruction(Opcode::POR), OperandCode::G_E_xmm),
+ 0xec => OpcodeRecord(Interpretation::Instruction(Opcode::PADDSB), OperandCode::G_E_xmm),
+ 0xed => OpcodeRecord(Interpretation::Instruction(Opcode::PADDSW), OperandCode::G_E_xmm),
+ 0xee => OpcodeRecord(Interpretation::Instruction(Opcode::PMAXSW), OperandCode::G_E_xmm),
+ 0xef => OpcodeRecord(Interpretation::Instruction(Opcode::PXOR), OperandCode::G_E_xmm),
+// 0xf0
+ 0xf0 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xf1 => OpcodeRecord(Interpretation::Instruction(Opcode::PSLLW), OperandCode::G_E_xmm),
+ 0xf2 => OpcodeRecord(Interpretation::Instruction(Opcode::PSLLD), OperandCode::G_E_xmm),
+ 0xf3 => OpcodeRecord(Interpretation::Instruction(Opcode::PSLLQ), OperandCode::G_E_xmm),
+ 0xf4 => OpcodeRecord(Interpretation::Instruction(Opcode::PMULUDQ), OperandCode::G_E_xmm),
+ 0xf5 => OpcodeRecord(Interpretation::Instruction(Opcode::PMADDWD), OperandCode::G_E_xmm),
+ 0xf6 => OpcodeRecord(Interpretation::Instruction(Opcode::PSADBW), OperandCode::G_E_xmm),
+ 0xf7 => OpcodeRecord(Interpretation::Instruction(Opcode::MASKMOVDQU), OperandCode::G_U_xmm),
+ 0xf8 => OpcodeRecord(Interpretation::Instruction(Opcode::PSUBB), OperandCode::G_E_xmm),
+ 0xf9 => OpcodeRecord(Interpretation::Instruction(Opcode::PSUBW), OperandCode::G_E_xmm),
+ 0xfa => OpcodeRecord(Interpretation::Instruction(Opcode::PSUBD), OperandCode::G_E_xmm),
+ 0xfb => OpcodeRecord(Interpretation::Instruction(Opcode::PSUBQ), OperandCode::G_E_xmm),
+ 0xfc => OpcodeRecord(Interpretation::Instruction(Opcode::PADDB), OperandCode::G_E_xmm),
+ 0xfd => OpcodeRecord(Interpretation::Instruction(Opcode::PADDW), OperandCode::G_E_xmm),
+ 0xfe => OpcodeRecord(Interpretation::Instruction(Opcode::PADDD), OperandCode::G_E_xmm),
+ 0xff => OpcodeRecord(Interpretation::Instruction(Opcode::UD0), OperandCode::Gd_Ed),
+ }
+ } else {
+ match opcode {
+ 0x00 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f00),
+ 0x01 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f01),
+ 0x02 => OpcodeRecord(Interpretation::Instruction(Opcode::LAR), OperandCode::Gv_Ew),
+ 0x03 => OpcodeRecord(Interpretation::Instruction(Opcode::LSL), OperandCode::Gv_Ew_LSL),
+ 0x04 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x05 => OpcodeRecord(Interpretation::Instruction(Opcode::SYSCALL), OperandCode::Nothing),
+ 0x06 => OpcodeRecord(Interpretation::Instruction(Opcode::CLTS), OperandCode::Nothing),
+ 0x07 => OpcodeRecord(Interpretation::Instruction(Opcode::SYSRET), OperandCode::Nothing),
+ 0x08 => OpcodeRecord(Interpretation::Instruction(Opcode::INVD), OperandCode::Nothing),
+ 0x09 => OpcodeRecord(Interpretation::Instruction(Opcode::WBINVD), OperandCode::Nothing),
+ 0x0a => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x0b => OpcodeRecord(Interpretation::Instruction(Opcode::UD2), OperandCode::Nothing),
+ 0x0c => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x0d => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f0d),
+ 0x0e => OpcodeRecord(Interpretation::Instruction(Opcode::FEMMS), OperandCode::Nothing),
+ 0x0f => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f0f),
+
+ 0x10 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVUPS), OperandCode::G_E_xmm),
+ 0x11 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVUPS), OperandCode::E_G_xmm),
+ 0x12 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f12),
+ 0x13 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVLPS), OperandCode::M_G_xmm),
+ 0x14 => OpcodeRecord(Interpretation::Instruction(Opcode::UNPCKLPS), OperandCode::G_E_xmm),
+ 0x15 => OpcodeRecord(Interpretation::Instruction(Opcode::UNPCKHPS), OperandCode::G_E_xmm),
+ 0x16 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f16),
+ 0x17 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVHPS), OperandCode::PMOVX_E_G_xmm),
+ 0x18 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f18),
+ 0x19 => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1a => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1b => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1c => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1d => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1e => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+ 0x1f => OpcodeRecord(Interpretation::Instruction(Opcode::NOP), OperandCode::Ev),
+
+ 0x20 => OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Rq_Cq_0),
+ 0x21 => OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Rq_Dq_0),
+ 0x22 => OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Cq_Rq_0),
+ 0x23 => OpcodeRecord(Interpretation::Instruction(Opcode::MOV), OperandCode::Dq_Rq_0),
+ 0x24 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x25 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x26 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x27 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x28 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVAPS), OperandCode::G_E_xmm),
+ 0x29 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVAPS), OperandCode::E_G_xmm),
+ 0x2a => OpcodeRecord(Interpretation::Instruction(Opcode::CVTPI2PS), OperandCode::G_xmm_E_mm),
+ 0x2b => OpcodeRecord(Interpretation::Instruction(Opcode::MOVNTPS), OperandCode::M_G_xmm),
+ 0x2c => OpcodeRecord(Interpretation::Instruction(Opcode::CVTTPS2PI), OperandCode::G_mm_E_xmm),
+ 0x2d => OpcodeRecord(Interpretation::Instruction(Opcode::CVTPS2PI), OperandCode::G_mm_E_xmm),
+ 0x2e => OpcodeRecord(Interpretation::Instruction(Opcode::UCOMISS), OperandCode::PMOVX_G_E_xmm),
+ 0x2f => OpcodeRecord(Interpretation::Instruction(Opcode::COMISS), OperandCode::PMOVX_G_E_xmm),
+// 0x30
+ 0x30 => OpcodeRecord(Interpretation::Instruction(Opcode::WRMSR), OperandCode::Nothing),
+ 0x31 => OpcodeRecord(Interpretation::Instruction(Opcode::RDTSC), OperandCode::Nothing),
+ 0x32 => OpcodeRecord(Interpretation::Instruction(Opcode::RDMSR), OperandCode::Nothing),
+ 0x33 => OpcodeRecord(Interpretation::Instruction(Opcode::RDPMC), OperandCode::Nothing),
+ 0x34 => OpcodeRecord(Interpretation::Instruction(Opcode::SYSENTER), OperandCode::Nothing),
+ 0x35 => OpcodeRecord(Interpretation::Instruction(Opcode::SYSEXIT), OperandCode::Nothing),
+ 0x36 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x37 => OpcodeRecord(Interpretation::Instruction(Opcode::GETSEC), OperandCode::Nothing),
+ 0x38 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing), // handled before getting to `read_0f_opcode`
+ 0x39 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x3a => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing), // handled before getting to `read_0f_opcode`
+ 0x3b => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x3c => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x3d => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x3e => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x3f => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+
+// 0x40
+ 0x40 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVO), OperandCode::Gv_Ev),
+ 0x41 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNO), OperandCode::Gv_Ev),
+ 0x42 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVB), OperandCode::Gv_Ev),
+ 0x43 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNB), OperandCode::Gv_Ev),
+ 0x44 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVZ), OperandCode::Gv_Ev),
+ 0x45 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNZ), OperandCode::Gv_Ev),
+ 0x46 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNA), OperandCode::Gv_Ev),
+ 0x47 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVA), OperandCode::Gv_Ev),
+ 0x48 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVS), OperandCode::Gv_Ev),
+ 0x49 => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNS), OperandCode::Gv_Ev),
+ 0x4a => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVP), OperandCode::Gv_Ev),
+ 0x4b => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVNP), OperandCode::Gv_Ev),
+ 0x4c => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVL), OperandCode::Gv_Ev),
+ 0x4d => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVGE), OperandCode::Gv_Ev),
+ 0x4e => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVLE), OperandCode::Gv_Ev),
+ 0x4f => OpcodeRecord(Interpretation::Instruction(Opcode::CMOVG), OperandCode::Gv_Ev),
+
+// 0x50
+ 0x50 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVMSKPS), OperandCode::Gd_U_xmm),
+ 0x51 => OpcodeRecord(Interpretation::Instruction(Opcode::SQRTPS), OperandCode::G_E_xmm),
+ 0x52 => OpcodeRecord(Interpretation::Instruction(Opcode::RSQRTPS), OperandCode::G_E_xmm),
+ 0x53 => OpcodeRecord(Interpretation::Instruction(Opcode::RCPPS), OperandCode::G_E_xmm),
+ 0x54 => OpcodeRecord(Interpretation::Instruction(Opcode::ANDPS), OperandCode::G_E_xmm),
+ 0x55 => OpcodeRecord(Interpretation::Instruction(Opcode::ANDNPS), OperandCode::G_E_xmm),
+ 0x56 => OpcodeRecord(Interpretation::Instruction(Opcode::ORPS), OperandCode::G_E_xmm),
+ 0x57 => OpcodeRecord(Interpretation::Instruction(Opcode::XORPS), OperandCode::G_E_xmm),
+ 0x58 => OpcodeRecord(Interpretation::Instruction(Opcode::ADDPS), OperandCode::G_E_xmm),
+ 0x59 => OpcodeRecord(Interpretation::Instruction(Opcode::MULPS), OperandCode::G_E_xmm),
+ 0x5a => OpcodeRecord(Interpretation::Instruction(Opcode::CVTPS2PD), OperandCode::PMOVX_G_E_xmm),
+ 0x5b => OpcodeRecord(Interpretation::Instruction(Opcode::CVTDQ2PS), OperandCode::G_E_xmm),
+ 0x5c => OpcodeRecord(Interpretation::Instruction(Opcode::SUBPS), OperandCode::G_E_xmm),
+ 0x5d => OpcodeRecord(Interpretation::Instruction(Opcode::MINPS), OperandCode::G_E_xmm),
+ 0x5e => OpcodeRecord(Interpretation::Instruction(Opcode::DIVPS), OperandCode::G_E_xmm),
+ 0x5f => OpcodeRecord(Interpretation::Instruction(Opcode::MAXPS), OperandCode::G_E_xmm),
+
+// 0x60
+ 0x60 => OpcodeRecord(Interpretation::Instruction(Opcode::PUNPCKLBW), OperandCode::G_E_mm),
+ 0x61 => OpcodeRecord(Interpretation::Instruction(Opcode::PUNPCKLWD), OperandCode::G_E_mm),
+ 0x62 => OpcodeRecord(Interpretation::Instruction(Opcode::PUNPCKLDQ), OperandCode::G_E_mm),
+ 0x63 => OpcodeRecord(Interpretation::Instruction(Opcode::PACKSSWB), OperandCode::G_E_mm),
+ 0x64 => OpcodeRecord(Interpretation::Instruction(Opcode::PCMPGTB), OperandCode::G_E_mm),
+ 0x65 => OpcodeRecord(Interpretation::Instruction(Opcode::PCMPGTW), OperandCode::G_E_mm),
+ 0x66 => OpcodeRecord(Interpretation::Instruction(Opcode::PCMPGTD), OperandCode::G_E_mm),
+ 0x67 => OpcodeRecord(Interpretation::Instruction(Opcode::PACKUSWB), OperandCode::G_E_mm),
+ 0x68 => OpcodeRecord(Interpretation::Instruction(Opcode::PUNPCKHBW), OperandCode::G_E_mm),
+ 0x69 => OpcodeRecord(Interpretation::Instruction(Opcode::PUNPCKHWD), OperandCode::G_E_mm),
+ 0x6a => OpcodeRecord(Interpretation::Instruction(Opcode::PUNPCKHDQ), OperandCode::G_E_mm),
+ 0x6b => OpcodeRecord(Interpretation::Instruction(Opcode::PACKSSDW), OperandCode::G_E_mm),
+ 0x6c => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x6d => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x6e => OpcodeRecord(Interpretation::Instruction(Opcode::MOVD), OperandCode::G_mm_Ed),
+ 0x6f => OpcodeRecord(Interpretation::Instruction(Opcode::MOVQ), OperandCode::G_mm_E),
+
+// 0x70
+ 0x70 => OpcodeRecord(Interpretation::Instruction(Opcode::PSHUFW), OperandCode::G_E_mm_Ib),
+ 0x71 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f71),
+ 0x72 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f72),
+ 0x73 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0f73),
+ 0x74 => OpcodeRecord(Interpretation::Instruction(Opcode::PCMPEQB), OperandCode::G_E_mm),
+ 0x75 => OpcodeRecord(Interpretation::Instruction(Opcode::PCMPEQW), OperandCode::G_E_mm),
+ 0x76 => OpcodeRecord(Interpretation::Instruction(Opcode::PCMPEQD), OperandCode::G_E_mm),
+ 0x77 => OpcodeRecord(Interpretation::Instruction(Opcode::EMMS), OperandCode::Nothing),
+ 0x78 => OpcodeRecord(Interpretation::Instruction(Opcode::VMREAD), OperandCode::E_G_q),
+ 0x79 => OpcodeRecord(Interpretation::Instruction(Opcode::VMWRITE), OperandCode::G_E_q),
+ 0x7a => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x7b => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x7c => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x7d => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0x7e => OpcodeRecord(Interpretation::Instruction(Opcode::MOVD), OperandCode::Ed_G_mm),
+ 0x7f => OpcodeRecord(Interpretation::Instruction(Opcode::MOVQ), OperandCode::E_G_mm),
+
+// 0x80
+ 0x80 => OpcodeRecord(Interpretation::Instruction(Opcode::JO), OperandCode::Jvds),
+ 0x81 => OpcodeRecord(Interpretation::Instruction(Opcode::JNO), OperandCode::Jvds),
+ 0x82 => OpcodeRecord(Interpretation::Instruction(Opcode::JB), OperandCode::Jvds),
+ 0x83 => OpcodeRecord(Interpretation::Instruction(Opcode::JNB), OperandCode::Jvds),
+ 0x84 => OpcodeRecord(Interpretation::Instruction(Opcode::JZ), OperandCode::Jvds),
+ 0x85 => OpcodeRecord(Interpretation::Instruction(Opcode::JNZ), OperandCode::Jvds),
+ 0x86 => OpcodeRecord(Interpretation::Instruction(Opcode::JNA), OperandCode::Jvds),
+ 0x87 => OpcodeRecord(Interpretation::Instruction(Opcode::JA), OperandCode::Jvds),
+ 0x88 => OpcodeRecord(Interpretation::Instruction(Opcode::JS), OperandCode::Jvds),
+ 0x89 => OpcodeRecord(Interpretation::Instruction(Opcode::JNS), OperandCode::Jvds),
+ 0x8a => OpcodeRecord(Interpretation::Instruction(Opcode::JP), OperandCode::Jvds),
+ 0x8b => OpcodeRecord(Interpretation::Instruction(Opcode::JNP), OperandCode::Jvds),
+ 0x8c => OpcodeRecord(Interpretation::Instruction(Opcode::JL), OperandCode::Jvds),
+ 0x8d => OpcodeRecord(Interpretation::Instruction(Opcode::JGE), OperandCode::Jvds),
+ 0x8e => OpcodeRecord(Interpretation::Instruction(Opcode::JLE), OperandCode::Jvds),
+ 0x8f => OpcodeRecord(Interpretation::Instruction(Opcode::JG), OperandCode::Jvds),
+
+// 0x90
+ 0x90 => OpcodeRecord(Interpretation::Instruction(Opcode::SETO), OperandCode::Eb_R0),
+ 0x91 => OpcodeRecord(Interpretation::Instruction(Opcode::SETNO), OperandCode::Eb_R0),
+ 0x92 => OpcodeRecord(Interpretation::Instruction(Opcode::SETB), OperandCode::Eb_R0),
+ 0x93 => OpcodeRecord(Interpretation::Instruction(Opcode::SETAE), OperandCode::Eb_R0),
+ 0x94 => OpcodeRecord(Interpretation::Instruction(Opcode::SETZ), OperandCode::Eb_R0),
+ 0x95 => OpcodeRecord(Interpretation::Instruction(Opcode::SETNZ), OperandCode::Eb_R0),
+ 0x96 => OpcodeRecord(Interpretation::Instruction(Opcode::SETBE), OperandCode::Eb_R0),
+ 0x97 => OpcodeRecord(Interpretation::Instruction(Opcode::SETA), OperandCode::Eb_R0),
+ 0x98 => OpcodeRecord(Interpretation::Instruction(Opcode::SETS), OperandCode::Eb_R0),
+ 0x99 => OpcodeRecord(Interpretation::Instruction(Opcode::SETNS), OperandCode::Eb_R0),
+ 0x9a => OpcodeRecord(Interpretation::Instruction(Opcode::SETP), OperandCode::Eb_R0),
+ 0x9b => OpcodeRecord(Interpretation::Instruction(Opcode::SETNP), OperandCode::Eb_R0),
+ 0x9c => OpcodeRecord(Interpretation::Instruction(Opcode::SETL), OperandCode::Eb_R0),
+ 0x9d => OpcodeRecord(Interpretation::Instruction(Opcode::SETGE), OperandCode::Eb_R0),
+ 0x9e => OpcodeRecord(Interpretation::Instruction(Opcode::SETLE), OperandCode::Eb_R0),
+ 0x9f => OpcodeRecord(Interpretation::Instruction(Opcode::SETG), OperandCode::Eb_R0),
+
+// 0xa0
+ 0xa0 => OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::FS),
+ 0xa1 => OpcodeRecord(Interpretation::Instruction(Opcode::POP), OperandCode::FS),
+ 0xa2 => OpcodeRecord(Interpretation::Instruction(Opcode::CPUID), OperandCode::Nothing),
+ 0xa3 => OpcodeRecord(Interpretation::Instruction(Opcode::BT), OperandCode::Ev_Gv),
+ 0xa4 => OpcodeRecord(Interpretation::Instruction(Opcode::SHLD), OperandCode::Ev_Gv_Ib),
+ 0xa5 => OpcodeRecord(Interpretation::Instruction(Opcode::SHLD), OperandCode::Ev_Gv_CL),
+ 0xa6 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xa7 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xa8 => OpcodeRecord(Interpretation::Instruction(Opcode::PUSH), OperandCode::GS),
+ 0xa9 => OpcodeRecord(Interpretation::Instruction(Opcode::POP), OperandCode::GS),
+ 0xaa => OpcodeRecord(Interpretation::Instruction(Opcode::RSM), OperandCode::Nothing),
+ 0xab => OpcodeRecord(Interpretation::Instruction(Opcode::BTS), OperandCode::Ev_Gv),
+ 0xac => OpcodeRecord(Interpretation::Instruction(Opcode::SHRD), OperandCode::Ev_Gv_Ib),
+ 0xad => OpcodeRecord(Interpretation::Instruction(Opcode::SHRD), OperandCode::Ev_Gv_CL),
+ 0xae => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0fae),
+ 0xaf => OpcodeRecord(Interpretation::Instruction(Opcode::IMUL), OperandCode::Gv_Ev),
+
+// 0xb0
+ 0xb0 => OpcodeRecord(Interpretation::Instruction(Opcode::CMPXCHG), OperandCode::Eb_Gb),
+ 0xb1 => OpcodeRecord(Interpretation::Instruction(Opcode::CMPXCHG), OperandCode::Ev_Gv),
+ 0xb2 => OpcodeRecord(Interpretation::Instruction(Opcode::LSS), OperandCode::INV_Gv_M),
+ 0xb3 => OpcodeRecord(Interpretation::Instruction(Opcode::BTR), OperandCode::Ev_Gv),
+ 0xb4 => OpcodeRecord(Interpretation::Instruction(Opcode::LFS), OperandCode::INV_Gv_M),
+ 0xb5 => OpcodeRecord(Interpretation::Instruction(Opcode::LGS), OperandCode::INV_Gv_M),
+ 0xb6 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVZX), OperandCode::Gv_Eb),
+ 0xb7 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVZX), OperandCode::Gv_Ew),
+ 0xb8 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing), // JMPE, ITANIUM
+ 0xb9 => OpcodeRecord(Interpretation::Instruction(Opcode::UD1), OperandCode::Gv_Ev),
+ 0xba => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0fba),
+ 0xbb => OpcodeRecord(Interpretation::Instruction(Opcode::BTC), OperandCode::Ev_Gv),
+ 0xbc => OpcodeRecord(Interpretation::Instruction(Opcode::BSF), OperandCode::Gv_Ev),
+ 0xbd => OpcodeRecord(Interpretation::Instruction(Opcode::BSR), OperandCode::Gv_Ev),
+ 0xbe => OpcodeRecord(Interpretation::Instruction(Opcode::MOVSX), OperandCode::Gv_Eb),
+ 0xbf => OpcodeRecord(Interpretation::Instruction(Opcode::MOVSX), OperandCode::Gv_Ew),
+
+// 0xc0
+ 0xc0 => OpcodeRecord(Interpretation::Instruction(Opcode::XADD), OperandCode::Eb_Gb),
+ 0xc1 => OpcodeRecord(Interpretation::Instruction(Opcode::XADD), OperandCode::Ev_Gv),
+ 0xc2 => OpcodeRecord(Interpretation::Instruction(Opcode::CMPPS), OperandCode::G_E_xmm_Ib),
+ 0xc3 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVNTI), OperandCode::Md_Gd),
+ 0xc4 => OpcodeRecord(Interpretation::Instruction(Opcode::PINSRW), OperandCode::G_mm_Ew_Ib),
+ 0xc5 => OpcodeRecord(Interpretation::Instruction(Opcode::PEXTRW), OperandCode::Rv_Gmm_Ib),
+ 0xc6 => OpcodeRecord(Interpretation::Instruction(Opcode::SHUFPS), OperandCode::G_E_xmm_Ib),
+ 0xc7 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0x0fc7),
+ 0xc8 => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R0),
+ 0xc9 => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R1),
+ 0xca => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R2),
+ 0xcb => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R3),
+ 0xcc => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R4),
+ 0xcd => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R5),
+ 0xce => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R6),
+ 0xcf => OpcodeRecord(Interpretation::Instruction(Opcode::BSWAP), OperandCode::Zv_R7),
+
+// 0xd0
+ 0xd0 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xd1 => OpcodeRecord(Interpretation::Instruction(Opcode::PSRLW), OperandCode::G_E_mm),
+ 0xd2 => OpcodeRecord(Interpretation::Instruction(Opcode::PSRLD), OperandCode::G_E_mm),
+ 0xd3 => OpcodeRecord(Interpretation::Instruction(Opcode::PSRLQ), OperandCode::G_E_mm),
+ 0xd4 => OpcodeRecord(Interpretation::Instruction(Opcode::PADDQ), OperandCode::G_E_mm),
+ 0xd5 => OpcodeRecord(Interpretation::Instruction(Opcode::PMULLW), OperandCode::G_E_mm),
+ 0xd6 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xd7 => OpcodeRecord(Interpretation::Instruction(Opcode::PMOVMSKB), OperandCode::G_U_mm),
+ 0xd8 => OpcodeRecord(Interpretation::Instruction(Opcode::PSUBUSB), OperandCode::G_E_mm),
+ 0xd9 => OpcodeRecord(Interpretation::Instruction(Opcode::PSUBUSW), OperandCode::G_E_mm),
+ 0xda => OpcodeRecord(Interpretation::Instruction(Opcode::PMINUB), OperandCode::G_E_mm),
+ 0xdb => OpcodeRecord(Interpretation::Instruction(Opcode::PAND), OperandCode::G_E_mm),
+ 0xdc => OpcodeRecord(Interpretation::Instruction(Opcode::PADDUSB), OperandCode::G_E_mm),
+ 0xdd => OpcodeRecord(Interpretation::Instruction(Opcode::PADDUSW), OperandCode::G_E_mm),
+ 0xde => OpcodeRecord(Interpretation::Instruction(Opcode::PMAXUB), OperandCode::G_E_mm),
+ 0xdf => OpcodeRecord(Interpretation::Instruction(Opcode::PANDN), OperandCode::G_E_mm),
+
+// 0xe0
+ 0xe0 => OpcodeRecord(Interpretation::Instruction(Opcode::PAVGB), OperandCode::G_E_mm),
+ 0xe1 => OpcodeRecord(Interpretation::Instruction(Opcode::PSRAW), OperandCode::G_E_mm),
+ 0xe2 => OpcodeRecord(Interpretation::Instruction(Opcode::PSRAD), OperandCode::G_E_mm),
+ 0xe3 => OpcodeRecord(Interpretation::Instruction(Opcode::PAVGW), OperandCode::G_E_mm),
+ 0xe4 => OpcodeRecord(Interpretation::Instruction(Opcode::PMULHUW), OperandCode::G_E_mm),
+ 0xe5 => OpcodeRecord(Interpretation::Instruction(Opcode::PMULHW), OperandCode::G_E_mm),
+ 0xe6 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xe7 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVNTQ), OperandCode::G_Mq_mm),
+ 0xe8 => OpcodeRecord(Interpretation::Instruction(Opcode::PSUBSB), OperandCode::G_E_mm),
+ 0xe9 => OpcodeRecord(Interpretation::Instruction(Opcode::PSUBSW), OperandCode::G_E_mm),
+ 0xea => OpcodeRecord(Interpretation::Instruction(Opcode::PMINSW), OperandCode::G_E_mm),
+ 0xeb => OpcodeRecord(Interpretation::Instruction(Opcode::POR), OperandCode::G_E_mm),
+ 0xec => OpcodeRecord(Interpretation::Instruction(Opcode::PADDSB), OperandCode::G_E_mm),
+ 0xed => OpcodeRecord(Interpretation::Instruction(Opcode::PADDSW), OperandCode::G_E_mm),
+ 0xee => OpcodeRecord(Interpretation::Instruction(Opcode::PMAXSW), OperandCode::G_E_mm),
+ 0xef => OpcodeRecord(Interpretation::Instruction(Opcode::PXOR), OperandCode::G_E_mm),
+// 0xf0
+ 0xf0 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ 0xf1 => OpcodeRecord(Interpretation::Instruction(Opcode::PSLLW), OperandCode::G_E_mm),
+ 0xf2 => OpcodeRecord(Interpretation::Instruction(Opcode::PSLLD), OperandCode::G_E_mm),
+ 0xf3 => OpcodeRecord(Interpretation::Instruction(Opcode::PSLLQ), OperandCode::G_E_mm),
+ 0xf4 => OpcodeRecord(Interpretation::Instruction(Opcode::PMULUDQ), OperandCode::G_E_mm),
+ 0xf5 => OpcodeRecord(Interpretation::Instruction(Opcode::PMADDWD), OperandCode::G_E_mm),
+ 0xf6 => OpcodeRecord(Interpretation::Instruction(Opcode::PSADBW), OperandCode::G_E_mm),
+ 0xf7 => OpcodeRecord(Interpretation::Instruction(Opcode::MASKMOVQ), OperandCode::G_mm_U_mm),
+ 0xf8 => OpcodeRecord(Interpretation::Instruction(Opcode::PSUBB), OperandCode::G_E_mm),
+ 0xf9 => OpcodeRecord(Interpretation::Instruction(Opcode::PSUBW), OperandCode::G_E_mm),
+ 0xfa => OpcodeRecord(Interpretation::Instruction(Opcode::PSUBD), OperandCode::G_E_mm),
+ 0xfb => OpcodeRecord(Interpretation::Instruction(Opcode::PSUBQ), OperandCode::G_E_mm),
+ 0xfc => OpcodeRecord(Interpretation::Instruction(Opcode::PADDB), OperandCode::G_E_mm),
+ 0xfd => OpcodeRecord(Interpretation::Instruction(Opcode::PADDW), OperandCode::G_E_mm),
+ 0xfe => OpcodeRecord(Interpretation::Instruction(Opcode::PADDD), OperandCode::G_E_mm),
+ 0xff => OpcodeRecord(Interpretation::Instruction(Opcode::UD0), OperandCode::Gd_Ed),
+ }
+ }
+}
+
+fn read_0f38_opcode(opcode: u8, prefixes: &mut Prefixes) -> OpcodeRecord {
+ if prefixes.rep() {
+ return match opcode {
+ 0xd8 => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0xf30f38d8),
+ 0xdc => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0xf30f38dc),
+ 0xdd => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0xf30f38dd),
+ 0xde => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0xf30f38de),
+ 0xdf => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0xf30f38df),
+ 0xf6 => OpcodeRecord(Interpretation::Instruction(Opcode::ADOX), OperandCode::Gv_Ev),
+ 0xf8 => {
+ prefixes.unset_operand_size();
+ OpcodeRecord(Interpretation::Instruction(Opcode::ENQCMDS), OperandCode::INV_Gv_M)
+ },
+ 0xfa => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0xf30f38fa),
+ 0xfb => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::ModRM_0xf30f38fb),
+ _ => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ };
+ }
+
+ if prefixes.repnz() {
+ return match opcode {
+ 0xf0 => OpcodeRecord(Interpretation::Instruction(Opcode::CRC32), OperandCode::Gv_Eb),
+ 0xf1 => OpcodeRecord(Interpretation::Instruction(Opcode::CRC32), OperandCode::Gd_Ev),
+ 0xf8 => {
+ prefixes.unset_operand_size();
+ OpcodeRecord(Interpretation::Instruction(Opcode::ENQCMD), OperandCode::INV_Gv_M)
+ },
+ _ => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ };
+ }
+
+ if prefixes.operand_size() {
+ // leave operand size present for `movbe`
+ if opcode != 0xf0 && opcode != 0xf1 {
+ prefixes.unset_operand_size();
+ }
+
+ return match opcode {
+ 0x00 => OpcodeRecord(Interpretation::Instruction(Opcode::PSHUFB), OperandCode::G_E_xmm),
+ 0x01 => OpcodeRecord(Interpretation::Instruction(Opcode::PHADDW), OperandCode::G_E_xmm),
+ 0x02 => OpcodeRecord(Interpretation::Instruction(Opcode::PHADDD), OperandCode::G_E_xmm),
+ 0x03 => OpcodeRecord(Interpretation::Instruction(Opcode::PHADDSW), OperandCode::G_E_xmm),
+ 0x04 => OpcodeRecord(Interpretation::Instruction(Opcode::PMADDUBSW), OperandCode::G_E_xmm),
+ 0x05 => OpcodeRecord(Interpretation::Instruction(Opcode::PHSUBW), OperandCode::G_E_xmm),
+ 0x06 => OpcodeRecord(Interpretation::Instruction(Opcode::PHSUBD), OperandCode::G_E_xmm),
+ 0x07 => OpcodeRecord(Interpretation::Instruction(Opcode::PHSUBSW), OperandCode::G_E_xmm),
+ 0x08 => OpcodeRecord(Interpretation::Instruction(Opcode::PSIGNB), OperandCode::G_E_xmm),
+ 0x09 => OpcodeRecord(Interpretation::Instruction(Opcode::PSIGNW), OperandCode::G_E_xmm),
+ 0x0a => OpcodeRecord(Interpretation::Instruction(Opcode::PSIGND), OperandCode::G_E_xmm),
+ 0x0b => OpcodeRecord(Interpretation::Instruction(Opcode::PMULHRSW), OperandCode::G_E_xmm),
+ 0x10 => OpcodeRecord(Interpretation::Instruction(Opcode::PBLENDVB), OperandCode::G_E_xmm),
+ 0x14 => OpcodeRecord(Interpretation::Instruction(Opcode::BLENDVPS), OperandCode::G_E_xmm),
+ 0x15 => OpcodeRecord(Interpretation::Instruction(Opcode::BLENDVPD), OperandCode::G_E_xmm),
+ 0x17 => OpcodeRecord(Interpretation::Instruction(Opcode::PTEST), OperandCode::G_E_xmm),
+ 0x1c => OpcodeRecord(Interpretation::Instruction(Opcode::PABSB), OperandCode::G_E_xmm),
+ 0x1d => OpcodeRecord(Interpretation::Instruction(Opcode::PABSW), OperandCode::G_E_xmm),
+ 0x1e => OpcodeRecord(Interpretation::Instruction(Opcode::PABSD), OperandCode::G_E_xmm),
+ 0x20 => OpcodeRecord(Interpretation::Instruction(Opcode::PMOVSXBW), OperandCode::PMOVX_G_E_xmm),
+ 0x21 => OpcodeRecord(Interpretation::Instruction(Opcode::PMOVSXBD), OperandCode::PMOVX_G_E_xmm),
+ 0x22 => OpcodeRecord(Interpretation::Instruction(Opcode::PMOVSXBQ), OperandCode::PMOVX_G_E_xmm),
+ 0x23 => OpcodeRecord(Interpretation::Instruction(Opcode::PMOVSXWD), OperandCode::PMOVX_G_E_xmm),
+ 0x24 => OpcodeRecord(Interpretation::Instruction(Opcode::PMOVSXWQ), OperandCode::PMOVX_G_E_xmm),
+ 0x25 => OpcodeRecord(Interpretation::Instruction(Opcode::PMOVSXDQ), OperandCode::PMOVX_G_E_xmm),
+ 0x28 => OpcodeRecord(Interpretation::Instruction(Opcode::PMULDQ), OperandCode::G_E_xmm),
+ 0x29 => OpcodeRecord(Interpretation::Instruction(Opcode::PCMPEQQ), OperandCode::G_E_xmm),
+ 0x2a => OpcodeRecord(Interpretation::Instruction(Opcode::MOVNTDQA), OperandCode::G_M_xmm),
+ 0x2b => OpcodeRecord(Interpretation::Instruction(Opcode::PACKUSDW), OperandCode::G_E_xmm),
+ 0x30 => OpcodeRecord(Interpretation::Instruction(Opcode::PMOVZXBW), OperandCode::PMOVX_G_E_xmm),
+ 0x31 => OpcodeRecord(Interpretation::Instruction(Opcode::PMOVZXBD), OperandCode::PMOVX_G_E_xmm),
+ 0x32 => OpcodeRecord(Interpretation::Instruction(Opcode::PMOVZXBQ), OperandCode::PMOVX_G_E_xmm),
+ 0x33 => OpcodeRecord(Interpretation::Instruction(Opcode::PMOVZXWD), OperandCode::PMOVX_G_E_xmm),
+ 0x34 => OpcodeRecord(Interpretation::Instruction(Opcode::PMOVZXWQ), OperandCode::PMOVX_G_E_xmm),
+ 0x35 => OpcodeRecord(Interpretation::Instruction(Opcode::PMOVZXDQ), OperandCode::PMOVX_G_E_xmm),
+ 0x37 => OpcodeRecord(Interpretation::Instruction(Opcode::PCMPGTQ), OperandCode::G_E_xmm),
+ 0x38 => OpcodeRecord(Interpretation::Instruction(Opcode::PMINSB), OperandCode::G_E_xmm),
+ 0x39 => OpcodeRecord(Interpretation::Instruction(Opcode::PMINSD), OperandCode::G_E_xmm),
+ 0x3a => OpcodeRecord(Interpretation::Instruction(Opcode::PMINUW), OperandCode::G_E_xmm),
+ 0x3b => OpcodeRecord(Interpretation::Instruction(Opcode::PMINUD), OperandCode::G_E_xmm),
+ 0x3c => OpcodeRecord(Interpretation::Instruction(Opcode::PMAXSB), OperandCode::G_E_xmm),
+ 0x3d => OpcodeRecord(Interpretation::Instruction(Opcode::PMAXSD), OperandCode::G_E_xmm),
+ 0x3e => OpcodeRecord(Interpretation::Instruction(Opcode::PMAXUW), OperandCode::G_E_xmm),
+ 0x3f => OpcodeRecord(Interpretation::Instruction(Opcode::PMAXUD), OperandCode::G_E_xmm),
+ 0x40 => OpcodeRecord(Interpretation::Instruction(Opcode::PMULLD), OperandCode::G_E_xmm),
+ 0x41 => OpcodeRecord(Interpretation::Instruction(Opcode::PHMINPOSUW), OperandCode::G_E_xmm),
+ 0x80 => OpcodeRecord(Interpretation::Instruction(Opcode::INVEPT), OperandCode::INV_Gv_M),
+ 0x81 => OpcodeRecord(Interpretation::Instruction(Opcode::INVVPID), OperandCode::INV_Gv_M),
+ 0x82 => OpcodeRecord(Interpretation::Instruction(Opcode::INVPCID), OperandCode::INV_Gv_M),
+ 0xcf => OpcodeRecord(Interpretation::Instruction(Opcode::GF2P8MULB), OperandCode::G_E_xmm),
+ 0xdb => OpcodeRecord(Interpretation::Instruction(Opcode::AESIMC), OperandCode::G_E_xmm),
+ 0xdc => OpcodeRecord(Interpretation::Instruction(Opcode::AESENC), OperandCode::G_E_xmm),
+ 0xdd => OpcodeRecord(Interpretation::Instruction(Opcode::AESENCLAST), OperandCode::G_E_xmm),
+ 0xde => OpcodeRecord(Interpretation::Instruction(Opcode::AESDEC), OperandCode::G_E_xmm),
+ 0xdf => OpcodeRecord(Interpretation::Instruction(Opcode::AESDECLAST), OperandCode::G_E_xmm),
+ 0xf0 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVBE), OperandCode::Gv_M),
+ 0xf1 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVBE), OperandCode::M_Gv),
+ 0xf5 => OpcodeRecord(Interpretation::Instruction(Opcode::WRUSS), OperandCode::Md_Gd),
+ 0xf6 => OpcodeRecord(Interpretation::Instruction(Opcode::ADCX), OperandCode::Gv_Ev),
+ 0xf8 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVDIR64B), OperandCode::MOVDIR64B),
+ _ => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ };
+ } else {
+ return match opcode {
+ 0x00 => OpcodeRecord(Interpretation::Instruction(Opcode::PSHUFB), OperandCode::G_E_mm),
+ 0x01 => OpcodeRecord(Interpretation::Instruction(Opcode::PHADDW), OperandCode::G_E_mm),
+ 0x02 => OpcodeRecord(Interpretation::Instruction(Opcode::PHADDD), OperandCode::G_E_mm),
+ 0x03 => OpcodeRecord(Interpretation::Instruction(Opcode::PHADDSW), OperandCode::G_E_mm),
+ 0x04 => OpcodeRecord(Interpretation::Instruction(Opcode::PMADDUBSW), OperandCode::G_E_mm),
+ 0x05 => OpcodeRecord(Interpretation::Instruction(Opcode::PHSUBW), OperandCode::G_E_mm),
+ 0x06 => OpcodeRecord(Interpretation::Instruction(Opcode::PHSUBD), OperandCode::G_E_mm),
+ 0x07 => OpcodeRecord(Interpretation::Instruction(Opcode::PHSUBSW), OperandCode::G_E_mm),
+ 0x08 => OpcodeRecord(Interpretation::Instruction(Opcode::PSIGNB), OperandCode::G_E_mm),
+ 0x09 => OpcodeRecord(Interpretation::Instruction(Opcode::PSIGNW), OperandCode::G_E_mm),
+ 0x0a => OpcodeRecord(Interpretation::Instruction(Opcode::PSIGND), OperandCode::G_E_mm),
+ 0x0b => OpcodeRecord(Interpretation::Instruction(Opcode::PMULHRSW), OperandCode::G_E_mm),
+ 0x1c => OpcodeRecord(Interpretation::Instruction(Opcode::PABSB), OperandCode::G_E_mm),
+ 0x1d => OpcodeRecord(Interpretation::Instruction(Opcode::PABSW), OperandCode::G_E_mm),
+ 0x1e => OpcodeRecord(Interpretation::Instruction(Opcode::PABSD), OperandCode::G_E_mm),
+ 0xc8 => OpcodeRecord(Interpretation::Instruction(Opcode::SHA1NEXTE), OperandCode::G_E_xmm),
+ 0xc9 => OpcodeRecord(Interpretation::Instruction(Opcode::SHA1MSG1), OperandCode::G_E_xmm),
+ 0xca => OpcodeRecord(Interpretation::Instruction(Opcode::SHA1MSG2), OperandCode::G_E_xmm),
+ 0xcb => OpcodeRecord(Interpretation::Instruction(Opcode::SHA256RNDS2), OperandCode::G_E_xmm),
+ 0xcc => OpcodeRecord(Interpretation::Instruction(Opcode::SHA256MSG1), OperandCode::G_E_xmm),
+ 0xcd => OpcodeRecord(Interpretation::Instruction(Opcode::SHA256MSG2), OperandCode::G_E_xmm),
+ 0xf0 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVBE), OperandCode::Gv_M),
+ 0xf1 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVBE), OperandCode::M_Gv),
+ 0xf6 => OpcodeRecord(Interpretation::Instruction(Opcode::WRSS), OperandCode::Md_Gd),
+ 0xf9 => OpcodeRecord(Interpretation::Instruction(Opcode::MOVDIRI), OperandCode::Md_Gd),
+ _ => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ };
+ }
+}
+
+fn read_0f3a_opcode(opcode: u8, prefixes: &mut Prefixes) -> OpcodeRecord {
+ if prefixes.rep() {
+ if prefixes != &Prefixes::new(0x10) {
+ return OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing);
+ }
+ return match opcode {
+ 0xf0 => OpcodeRecord(Interpretation::Instruction(Opcode::HRESET), OperandCode::ModRM_0xf30f3af0),
+ _ => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ };
+ }
+
+ if prefixes.repnz() {
+ return OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing);
+ }
+
+ if prefixes.operand_size() {
+ return match opcode {
+ 0x08 => OpcodeRecord(Interpretation::Instruction(Opcode::ROUNDPS), OperandCode::G_E_xmm_Ib),
+ 0x09 => OpcodeRecord(Interpretation::Instruction(Opcode::ROUNDPD), OperandCode::G_E_xmm_Ib),
+ 0x0a => OpcodeRecord(Interpretation::Instruction(Opcode::ROUNDSS), OperandCode::G_E_xmm_Ib),
+ 0x0b => OpcodeRecord(Interpretation::Instruction(Opcode::ROUNDSD), OperandCode::G_E_xmm_Ib),
+ 0x0c => OpcodeRecord(Interpretation::Instruction(Opcode::BLENDPS), OperandCode::G_E_xmm_Ib),
+ 0x0d => OpcodeRecord(Interpretation::Instruction(Opcode::BLENDPD), OperandCode::G_E_xmm_Ib),
+ 0x0e => OpcodeRecord(Interpretation::Instruction(Opcode::PBLENDW), OperandCode::G_E_xmm_Ib),
+ 0x0f => OpcodeRecord(Interpretation::Instruction(Opcode::PALIGNR), OperandCode::G_E_xmm_Ib),
+ 0x14 => OpcodeRecord(Interpretation::Instruction(Opcode::PEXTRB), OperandCode::G_Ev_xmm_Ib),
+ 0x15 => OpcodeRecord(Interpretation::Instruction(Opcode::PEXTRW), OperandCode::G_Ev_xmm_Ib),
+ 0x16 => OpcodeRecord(Interpretation::Instruction(Opcode::PEXTRD), OperandCode::G_Ev_xmm_Ib),
+ 0x17 => OpcodeRecord(Interpretation::Instruction(Opcode::EXTRACTPS), OperandCode::G_Ev_xmm_Ib),
+ 0x20 => OpcodeRecord(Interpretation::Instruction(Opcode::PINSRB), OperandCode::G_Ev_xmm_Ib),
+ 0x21 => OpcodeRecord(Interpretation::Instruction(Opcode::INSERTPS), OperandCode::G_Ev_xmm_Ib),
+ 0x22 => OpcodeRecord(Interpretation::Instruction(Opcode::PINSRD), OperandCode::G_Ev_xmm_Ib),
+ 0x40 => OpcodeRecord(Interpretation::Instruction(Opcode::DPPS), OperandCode::G_E_xmm_Ib),
+ 0x41 => OpcodeRecord(Interpretation::Instruction(Opcode::DPPD), OperandCode::G_E_xmm_Ib),
+ 0x42 => OpcodeRecord(Interpretation::Instruction(Opcode::MPSADBW), OperandCode::G_E_xmm_Ib),
+ 0x44 => OpcodeRecord(Interpretation::Instruction(Opcode::PCLMULQDQ), OperandCode::G_E_xmm_Ib),
+ 0x60 => OpcodeRecord(Interpretation::Instruction(Opcode::PCMPESTRM), OperandCode::G_E_xmm_Ib),
+ 0x61 => OpcodeRecord(Interpretation::Instruction(Opcode::PCMPESTRI), OperandCode::G_E_xmm_Ib),
+ 0x62 => OpcodeRecord(Interpretation::Instruction(Opcode::PCMPISTRM), OperandCode::G_E_xmm_Ib),
+ 0x63 => OpcodeRecord(Interpretation::Instruction(Opcode::PCMPISTRI), OperandCode::G_E_xmm_Ib),
+ 0xcc => OpcodeRecord(Interpretation::Instruction(Opcode::SHA1RNDS4), OperandCode::G_E_xmm_Ib),
+ 0xce => OpcodeRecord(Interpretation::Instruction(Opcode::GF2P8AFFINEQB), OperandCode::G_E_xmm_Ub),
+ 0xcf => OpcodeRecord(Interpretation::Instruction(Opcode::GF2P8AFFINEINVQB), OperandCode::G_E_xmm_Ub),
+ 0xdf => OpcodeRecord(Interpretation::Instruction(Opcode::AESKEYGENASSIST), OperandCode::G_E_xmm_Ub),
+ _ => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ };
+ }
+
+ return match opcode {
+ 0xcc => OpcodeRecord(Interpretation::Instruction(Opcode::SHA1RNDS4), OperandCode::G_E_xmm_Ub),
+ 0x0f => OpcodeRecord(Interpretation::Instruction(Opcode::PALIGNR), OperandCode::G_E_mm_Ib),
+ _ => OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing),
+ };
+}
+
+fn read_instr<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpeax_arch::Arch>::Word>>(decoder: &InstDecoder, words: &mut T, instruction: &mut Instruction) -> Result<(), DecodeError> {
+ words.mark();
+ let mut nextb = words.next().ok().ok_or(DecodeError::ExhaustedInput)?;
+ let mut next_rec = OPCODES[nextb as usize];
+ let mut prefixes = Prefixes::new(0);
+
+ // default registers to `[eax; 4]`
+ instruction.regs = unsafe { core::mem::transmute(0u64) };
+ instruction.mem_size = 0;
+ // default operands to [RegRRR, Nothing, Nothing, Nothing]
+ instruction.operands = unsafe { core::mem::transmute(0x00_00_00_01) };
+ instruction.operand_count = 2;
+
+
+ let record: OpcodeRecord = loop {
+ let record = next_rec;
+ if let Interpretation::Instruction(_) = record.0 {
+ break record;
+ } else {
+ let b = nextb;
+ if words.offset() >= 15 {
+ return Err(DecodeError::TooLong);
+ }
+ if b == 0x0f {
+ let b = words.next().ok().ok_or(DecodeError::ExhaustedInput)?;
+ if b == 0x38 {
+ let b = words.next().ok().ok_or(DecodeError::ExhaustedInput)?;
+ break read_0f38_opcode(b, &mut prefixes);
+ } else if b == 0x3a {
+ let b = words.next().ok().ok_or(DecodeError::ExhaustedInput)?;
+ break read_0f3a_opcode(b, &mut prefixes);
+ } else {
+ break read_0f_opcode(b, &mut prefixes);
+ }
+ }
+
+ nextb = words.next().ok().ok_or(DecodeError::ExhaustedInput)?;
+ next_rec = unsafe {
+ core::ptr::read_volatile(&OPCODES[nextb as usize])
+ };
+ match b {
+ 0x26 => {
+ prefixes.set_es();
+ },
+ 0x2e => {
+ prefixes.set_cs();
+ },
+ 0x36 => {
+ prefixes.set_ss();
+ },
+ 0x3e => {
+ prefixes.set_ds();
+ },
+ 0x64 => {
+ prefixes.set_fs();
+ },
+ 0x65 => {
+ prefixes.set_gs();
+ },
+ 0x66 => {
+ prefixes.set_operand_size();
+ },
+ 0x67 => {
+ prefixes.set_address_size();
+ },
+ 0xf0 => {
+ prefixes.set_lock();
+ },
+ 0xf2 => {
+ prefixes.set_repnz();
+ },
+ 0xf3 => {
+ prefixes.set_rep();
+ },
+ _ => { unsafe { unreachable_unchecked(); } }
+ }
+ }
+ };
+ if record == OpcodeRecord(Interpretation::Instruction(Opcode::Invalid), OperandCode::Nothing) {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ if let Interpretation::Instruction(opcode) = record.0 {
+ instruction.opcode = opcode;
+ } else {
+ unsafe { unreachable_unchecked(); }
+ }
+ instruction.prefixes = prefixes;
+ read_operands(decoder, words, instruction, record.1)?;
+ instruction.length = words.offset() as u8;
+ if instruction.length > 15 {
+ return Err(DecodeError::TooLong);
+ }
+
+ if instruction.prefixes.lock() {
+ if !LOCKABLE_INSTRUCTIONS.contains(&instruction.opcode) || !instruction.operands[0].is_memory() {
+ return Err(DecodeError::InvalidPrefixes);
+ }
+ }
+
+ if decoder != &InstDecoder::default() {
+ // we might have to fix up or reject this instruction under whatever cpu features we need to
+ // pretend to have.
+ decoder.revise_instruction(instruction)?;
+ }
+ Ok(())
+}
+/* likely cases
+ OperandCode::Eb_R0 => 0
+ _op @ OperandCode::ModRM_0x80_Eb_Ib => 1
+ _op @ OperandCode::ModRM_0x81_Ev_Ivs => 2
+ op @ OperandCode::ModRM_0xc6_Eb_Ib => 3
+ op @ OperandCode::ModRM_0xc7_Ev_Iv => 4
+ op @ OperandCode::ModRM_0xc0_Eb_Ib => 5
+ op @ OperandCode::ModRM_0xc1_Ev_Ib => 6
+ op @ OperandCode::ModRM_0xd0_Eb_1 => 7
+ op @ OperandCode::ModRM_0xd1_Ev_1 => 8
+ op @ OperandCode::ModRM_0xd2_Eb_CL => 9
+ op @ OperandCode::ModRM_0xd3_Ev_CL => 10
+ _op @ OperandCode::ModRM_0xf6 => 11
+ _op @ OperandCode::ModRM_0xf7 => 12
+ OperandCode::ModRM_0xfe_Eb => 13
+ OperandCode::ModRM_0xff_Ev => 14
+ OperandCode::Gv_Eb => 15
+ OperandCode::Gv_Ew => 16
+ OperandCode::Ev => 18
+ OperandCode::E_G_xmm => 19
+ op @ OperandCode::G_M_xmm => 20
+ op @ OperandCode::G_E_xmm => 21
+ OperandCode::G_E_xmm_Ib => 22
+ OperandCode::AL_Ibs => 23
+ OperandCode::AX_Ivd => 24
+ OperandCode::Ivs => 25
+ OperandCode::ModRM_0x83_Ev_Ibs => 26
+ OperandCode::I_3 => 27
+ OperandCode::Nothing => 28
+ OperandCode::G_E_mm_Ib => 29
+ OperandCode::ModRM_0x8f_Ev => 30
+
+ */
+fn read_operands<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpeax_arch::Arch>::Word>>(decoder: &InstDecoder, words: &mut T, instruction: &mut Instruction, operand_code: OperandCode) -> Result<(), DecodeError> {
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operand_count = 2;
+ let operand_code = OperandCodeBuilder::from_bits(operand_code as u16);
+ if operand_code.has_embedded_instructions() {
+ match operand_code.get_embedded_instructions() {
+ Ok(z_operand_code) => {
+ let reg = z_operand_code.reg();
+ match z_operand_code.category() {
+ 0 => {
+ // these are Zv_R
+ let bank = if instruction.prefixes.operand_size() {
+ RegisterBank::D
+ } else {
+ RegisterBank::W
+ };
+ instruction.regs[0] =
+ RegSpec::from_parts(reg, bank);
+ instruction.operand_count = 1;
+ }
+ 1 => {
+ // Zv_AX
+ let bank = if instruction.prefixes.operand_size() {
+ RegisterBank::D
+ } else {
+ RegisterBank::W
+ };
+ instruction.regs[0] =
+ RegSpec::from_parts(0, bank);
+ instruction.operands[1] = OperandSpec::RegMMM;
+ instruction.regs[1] =
+ RegSpec::from_parts(reg, bank);
+ instruction.operand_count = 2;
+ }
+ 2 => {
+ // these are Zb_Ib_R
+ instruction.regs[0] =
+ RegSpec::from_parts(reg, RegisterBank::B);
+ instruction.imm =
+ read_imm_unsigned(words, 1)?;
+ instruction.operands[1] = OperandSpec::ImmU8;
+ }
+ 3 => {
+ // category == 3, Zv_Iv_R
+ if instruction.prefixes.operand_size() {
+ instruction.regs[0] =
+ RegSpec::from_parts(reg, RegisterBank::D);
+ instruction.imm =
+ read_imm_unsigned(words, 4)?;
+ instruction.operands[1] = OperandSpec::ImmI32;
+ } else {
+ instruction.regs[0] =
+ RegSpec::from_parts(reg, RegisterBank::W);
+ instruction.imm =
+ read_imm_unsigned(words, 2)?;
+ instruction.operands[1] = OperandSpec::ImmI16;
+ }
+ }
+ _ => {
+ unreachable!("bad category");
+ }
+ }
+ return Ok(());
+ },
+ // EmbeddedOperandInstructions but those are entirely handled in the fall-through
+ // below. one day this may grow to be an `Err(the_operand_instructions)` though, so for
+ // a simpler diff the above is pre-`match`/`Ok`'d.
+ _ => {}
+ }
+ }
+
+ let mut modrm = 0;
+ let bank: RegisterBank;
+ let mut mem_oper = OperandSpec::Nothing;
+ if operand_code.has_read_E() {
+ // cool! we can precompute opwidth and know we need to read_E.
+ if !operand_code.has_byte_operands() {
+ // further, this is an vd E, but adcx is always 32-bit operands
+ if instruction.prefixes.operand_size() || instruction.opcode == Opcode::ADCX || instruction.opcode == Opcode::ADOX {
+ instruction.mem_size = 4;
+ bank = RegisterBank::D;
+ } else {
+ instruction.mem_size = 2;
+ bank = RegisterBank::W;
+ }
+ } else {
+ instruction.mem_size = 1;
+ bank = RegisterBank::B;
+ };
+ modrm = read_modrm(words)?;
+ instruction.regs[0].bank = bank;
+ instruction.regs[0].num = (modrm >> 3) & 7;
+
+ mem_oper = if modrm >= 0b11000000 {
+ if operand_code.bits() == (OperandCode::Gv_M as u16) {
+ return Err(DecodeError::InvalidOperand);
+ }
+ read_modrm_reg(instruction, modrm, bank)?
+ } else {
+ read_M(words, instruction, modrm)?
+ };
+ instruction.operands[1] = mem_oper;
+ }
+
+ if let Some((only_imm, immsz)) = operand_code.has_imm() {
+ instruction.imm =
+ read_imm_signed(words, 1 << (immsz * 1))? as u32;
+ if only_imm {
+ if immsz == 0 {
+ instruction.operands[0] = OperandSpec::ImmI8;
+ } else {
+ instruction.operands[0] = OperandSpec::ImmI32;
+ }
+ instruction.operand_count = 1;
+ return Ok(());
+ }
+ }
+
+ if operand_code.is_only_modrm_operands() {
+ if !operand_code.has_reg_mem() {
+ instruction.operands[0] = mem_oper;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ };
+ } else {
+// match operand_code {
+ match operand_code.special_case_handler_index() {
+ 0 => {
+ instruction.operands[0] = mem_oper;
+ instruction.operand_count = 1;
+ },
+ 1 => {
+ instruction.opcode = base_opcode_map((modrm >> 3) & 7);
+ instruction.operands[0] = mem_oper;
+ instruction.operands[1] = OperandSpec::ImmI8;
+ instruction.operand_count = 2;
+ }
+ 2 => {
+ instruction.operands[0] = mem_oper;
+ let numwidth = if instruction.prefixes.operand_size() {
+ 4
+ } else {
+ 2
+ };
+ instruction.imm = read_imm_signed(words, numwidth)? as u32;
+ instruction.opcode = base_opcode_map((modrm >> 3) & 7);
+ instruction.operands[1] = match numwidth {
+ 2 => OperandSpec::ImmI16,
+ 4 => OperandSpec::ImmI32,
+ _ => unsafe { unreachable_unchecked() }
+ };
+ instruction.operand_count = 2;
+ },
+ 3 => { // ModRM_0xc6_Eb_Ib
+ if modrm == 0xf8 {
+ instruction.opcode = Opcode::XABORT;
+ instruction.imm = read_imm_signed(words, 1)? as u32;
+ instruction.operands[0] = OperandSpec::ImmI8;
+ instruction.operand_count = 1;
+ return Ok(());
+ }
+ if (modrm & 0b00111000) != 0 {
+ return Err(DecodeError::InvalidOperand); // Err("Invalid modr/m for opcode 0xc7".to_string());
+ }
+
+ instruction.operands[0] = mem_oper;
+ instruction.opcode = Opcode::MOV;
+ instruction.imm = read_imm_signed(words, 1)? as u32;
+ instruction.operands[1] = OperandSpec::ImmI8;
+ instruction.operand_count = 2;
+ }
+ 4 => { // ModRM_0xc7_Ev_Iv
+ if modrm == 0xf8 {
+ instruction.opcode = Opcode::XBEGIN;
+ instruction.imm = if instruction.prefixes.operand_size() {
+ read_imm_signed(words, 5)? as i32 as u32
+ } else {
+ read_imm_signed(words, 2)? as i16 as i32 as u32
+ };
+ instruction.operands[0] = OperandSpec::ImmI32;
+ instruction.operand_count = 1;
+ return Ok(());
+ }
+ if (modrm & 0b00111000) != 0 {
+ return Err(DecodeError::InvalidOperand); // Err("Invalid modr/m for opcode 0xc7".to_string());
+ }
+
+ instruction.operands[0] = mem_oper;
+ instruction.opcode = Opcode::MOV;
+ if !instruction.prefixes.operand_size() {
+ instruction.imm = read_imm_signed(words, 2)? as u32;
+ instruction.operands[1] = OperandSpec::ImmI16;
+ } else {
+ instruction.imm = read_imm_signed(words, 4)? as u32;
+ instruction.operands[1] = OperandSpec::ImmI32;
+ }
+ },
+ op @ 5 |
+ op @ 6 |
+ op @ 7 |
+ op @ 8 |
+ op @ 9 |
+ op @ 10 => {
+ instruction.operands[0] = mem_oper;
+ instruction.opcode = BITWISE_OPCODE_MAP[((modrm >> 3) & 7) as usize].clone();
+ if op == 10 {
+ instruction.regs[0] = RegSpec::cl();
+ instruction.operands[1] = OperandSpec::RegRRR;
+ } else if op == 9 {
+ instruction.regs[0] = RegSpec::cl();
+ instruction.operands[1] = OperandSpec::RegRRR;
+ } else {
+ let num = match op {
+ 5 |
+ 6 => {
+ read_num(words, 1)?
+ }
+ _ => {
+ // these are the _1 variants, everything else is unreachable
+ 1
+ }
+ };
+ instruction.imm = num;
+ instruction.operands[1] = OperandSpec::ImmI8;
+ }
+ instruction.operand_count = 2;
+ },
+ op @ 11 |
+ op @ 12 => {
+ let opwidth = if op == 11 {
+ 1
+ } else {
+ if instruction.prefixes.operand_size() {
+ 4
+ } else {
+ 2
+ }
+ };
+ instruction.operands[0] = mem_oper;
+ const TABLE: [Opcode; 8] = [
+ Opcode::TEST, Opcode::TEST, Opcode::NOT, Opcode::NEG,
+ Opcode::MUL, Opcode::IMUL, Opcode::DIV, Opcode::IDIV,
+ ];
+ let rrr = (modrm >> 3) & 7;
+ instruction.opcode = TABLE[rrr as usize];
+ if rrr < 2 {
+ instruction.opcode = Opcode::TEST;
+ let numwidth = if opwidth == 8 { 4 } else { opwidth };
+ instruction.imm = read_imm_signed(words, numwidth)? as u32;
+ instruction.operands[1] = match opwidth {
+ 1 => OperandSpec::ImmI8,
+ 2 => OperandSpec::ImmI16,
+ 4 => OperandSpec::ImmI32,
+ _ => unsafe { unreachable_unchecked() }
+ };
+ } else {
+ instruction.operand_count = 1;
+ }
+ },
+ 13 => {
+ instruction.operands[0] = mem_oper;
+ let r = (modrm >> 3) & 7;
+ if r >= 2 {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ instruction.opcode = [
+ Opcode::INC,
+ Opcode::DEC,
+ ][r as usize];
+ instruction.operand_count = 1;
+ }
+ 14 => {
+ instruction.operands[0] = mem_oper;
+ let r = (modrm >> 3) & 7;
+ if r == 7 {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ let opcode = [
+ Opcode::INC,
+ Opcode::DEC,
+ Opcode::CALL,
+ Opcode::CALLF,
+ Opcode::JMP,
+ Opcode::JMPF,
+ Opcode::PUSH,
+ ][r as usize];
+ if instruction.operands[0] == OperandSpec::RegMMM {
+ // in real mode, `xed` reports that operand-size does in fact override from word to
+ // dword. unlikely larger modes, operand-size can't shrink the call operand down.
+ if opcode == Opcode::CALLF || opcode == Opcode::JMPF {
+ return Err(DecodeError::InvalidOperand);
+ }
+ } else {
+ if opcode == Opcode::CALL || opcode == Opcode::JMP || opcode == Opcode::PUSH || opcode == Opcode::POP {
+ if instruction.prefixes.operand_size() {
+ instruction.mem_size = 4;
+ } else {
+ instruction.mem_size = 2;
+ }
+ } else if opcode == Opcode::CALLF || opcode == Opcode::JMPF {
+ instruction.mem_size = 4;
+ }
+ }
+ instruction.opcode = opcode;
+ instruction.operand_count = 1;
+ }
+ 15 => {
+ let modrm = read_modrm(words)?;
+
+ instruction.operands[1] = read_E(words, instruction, modrm, 1)?;
+ instruction.regs[0] = if instruction.prefixes.operand_size() || instruction.opcode == Opcode::CRC32 {
+ RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::D)
+ } else {
+ RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::W)
+ };
+ if instruction.operands[1] != OperandSpec::RegMMM {
+ instruction.mem_size = 1;
+ }
+ instruction.operand_count = 2;
+ },
+ 16 => {
+ let modrm = read_modrm(words)?;
+
+ instruction.operands[1] = read_E(words, instruction, modrm, 2)?;
+ instruction.regs[0] = if instruction.prefixes.operand_size() {
+ RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::D)
+ } else {
+ RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::W)
+ };
+ if instruction.operands[1] != OperandSpec::RegMMM {
+ instruction.mem_size = 2;
+ }
+ instruction.operand_count = 2;
+ },
+ 18 => {
+ instruction.operands[0] = mem_oper;
+ instruction.operand_count = 1;
+ },
+ 19 => {
+ instruction.regs[0].bank = RegisterBank::X;
+ instruction.operands[0] = mem_oper;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.operand_count = 2;
+ if instruction.operands[0] == OperandSpec::RegMMM {
+ // fix the register to XMM
+ instruction.regs[1].bank = RegisterBank::X;
+ } else {
+ instruction.mem_size = 16;
+ }
+ },
+ op @ 20 |
+ op @ 21 => {
+ instruction.regs[0].bank = RegisterBank::X;
+ instruction.operand_count = 2;
+ if instruction.operands[1] == OperandSpec::RegMMM {
+ if op == 20 {
+ return Err(DecodeError::InvalidOperand);
+ } else {
+ // fix the register to XMM
+ instruction.regs[1].bank = RegisterBank::X;
+ }
+ } else {
+ if instruction.opcode == Opcode::MOVDDUP {
+ instruction.mem_size = 8;
+ } else {
+ instruction.mem_size = 16;
+ }
+ }
+ },
+ 22 => {
+ let modrm = read_modrm(words)?;
+
+ instruction.operands[1] = read_E_xmm(words, instruction, modrm)?;
+ instruction.regs[0] =
+ RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X);
+ instruction.imm =
+ read_num(words, 1)? as u8 as u32;
+ if instruction.operands[1] != OperandSpec::RegMMM {
+ if instruction.opcode == Opcode::CMPSS {
+ instruction.mem_size = 4;
+ } else if instruction.opcode == Opcode::CMPSD {
+ instruction.mem_size = 8;
+ } else {
+ instruction.mem_size = 16;
+ }
+ }
+ instruction.operands[2] = OperandSpec::ImmI8;
+ instruction.operand_count = 3;
+ },
+ 23 => {
+ instruction.regs[0] =
+ RegSpec::al();
+ instruction.operands[1] = OperandSpec::ImmI8;
+ instruction.operand_count = 2;
+ }
+ 24 => {
+ let opwidth = if instruction.prefixes.operand_size() {
+ instruction.regs[0] =
+ RegSpec::from_parts(0, RegisterBank::D);
+ 4
+ } else {
+ instruction.regs[0] =
+ RegSpec::from_parts(0, RegisterBank::W);
+ 2
+ };
+ instruction.imm =
+ read_imm_signed(words, opwidth)? as u32;
+ instruction.operands[1] = match opwidth {
+ 2 => OperandSpec::ImmI16,
+ 4 => OperandSpec::ImmI32,
+ _ => unsafe { unreachable_unchecked() }
+ };
+ instruction.operand_count = 2;
+ }
+ 25 => {
+ let opwidth = if instruction.prefixes.operand_size() {
+ 4
+ } else {
+ 2
+ };
+ instruction.imm =
+ read_imm_unsigned(words, opwidth)?;
+ instruction.operands[0] = match opwidth {
+ 2 => OperandSpec::ImmI16,
+ 4 => OperandSpec::ImmI32,
+ _ => unsafe { unreachable_unchecked() }
+ };
+ instruction.operand_count = 1;
+ },
+ 26 => {
+ instruction.operands[0] = mem_oper;
+ instruction.opcode = base_opcode_map((modrm >> 3) & 7);
+ instruction.operands[1] = OperandSpec::ImmI8;
+ instruction.operand_count = 2;
+ },
+ 27 => {
+ instruction.imm = 3;
+ instruction.operands[0] = OperandSpec::ImmU8;
+ instruction.operand_count = 1;
+ }
+ 28 => {
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ return Ok(());
+ },
+ 29 => {
+ instruction.regs[0].bank = RegisterBank::X;
+ instruction.operands[0] = mem_oper;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.operand_count = 2;
+ if instruction.operands[0] == OperandSpec::RegMMM {
+ // fix the register to XMM
+ if instruction.opcode == Opcode::MOVD {
+ instruction.regs[1].bank = RegisterBank::D;
+ } else {
+ instruction.regs[1].bank = RegisterBank::X;
+ }
+ } else {
+ instruction.mem_size = 4;
+ }
+ },
+ 30 => {
+ instruction.operands[0] = mem_oper;
+ let r = (modrm >> 3) & 7;
+ if r >= 1 {
+ // TODO: this is where XOP decoding would occur
+ return Err(DecodeError::IncompleteDecoder);
+ }
+ instruction.opcode = [
+ Opcode::POP,
+ ][r as usize];
+ instruction.operand_count = 1;
+ }
+ 31 => {
+ instruction.regs[0].bank = RegisterBank::X;
+ instruction.operand_count = 2;
+ if instruction.operands[1] == OperandSpec::RegMMM {
+ // fix the register to XMM
+ instruction.regs[1].bank = RegisterBank::X;
+ } else {
+ instruction.mem_size = 4;
+ }
+ },
+ _ => {
+ let operand_code: OperandCode = unsafe { core::mem::transmute(operand_code.bits()) };
+ unlikely_operands(decoder, words, instruction, operand_code, mem_oper)?;
+ }
+ };
+ }
+
+ Ok(())
+}
+fn unlikely_operands<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpeax_arch::Arch>::Word>>(decoder: &InstDecoder, words: &mut T, instruction: &mut Instruction, operand_code: OperandCode, mem_oper: OperandSpec) -> Result<(), DecodeError> {
+ match operand_code {
+ OperandCode::G_E_mm_Ib => {
+ let modrm = read_modrm(words)?;
+
+ instruction.operands[1] = read_E_mm(words, instruction, modrm)?;
+ instruction.regs[0] = RegSpec { bank: RegisterBank::MM, num: (modrm >> 3) & 7 };
+ if instruction.operands[1] == OperandSpec::RegMMM {
+ instruction.regs[1].bank = RegisterBank::MM;
+ } else {
+ instruction.mem_size = 8;
+ }
+ instruction.imm = read_num(words, 1)? as u8 as u32;
+ instruction.operands[2] = OperandSpec::ImmI8;
+ instruction.operand_count = 3;
+ }
+ OperandCode::G_Ev_xmm_Ib => {
+ let modrm = read_modrm(words)?;
+
+ instruction.operands[1] = read_E_xmm(words, instruction, modrm)?;
+ instruction.regs[0] = RegSpec { bank: RegisterBank::X, num: (modrm >> 3) & 7 };
+ instruction.imm = read_num(words, 1)? as u8 as u32;
+ if instruction.operands[1] != OperandSpec::RegMMM {
+ instruction.mem_size = match instruction.opcode {
+ Opcode::PEXTRB => 1,
+ Opcode::PEXTRW => 2,
+ Opcode::PEXTRD => 4,
+ Opcode::EXTRACTPS => 4,
+ Opcode::INSERTPS => 4,
+ Opcode::PINSRB => 1,
+ Opcode::PINSRW => 2,
+ Opcode::PINSRD => 4,
+ _ => 8,
+ };
+ }
+ instruction.operands[2] = OperandSpec::ImmI8;
+ instruction.operand_count = 3;
+ }
+ OperandCode::PMOVX_E_G_xmm => {
+ let modrm = read_modrm(words)?;
+
+ instruction.regs[0] = RegSpec { bank: RegisterBank::X, num: (modrm >> 3) & 7 };
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.operands[0] = read_E_xmm(words, instruction, modrm)?;
+ if instruction.operands[0] != OperandSpec::RegMMM {
+ if [].contains(&instruction.opcode) {
+ instruction.mem_size = 2;
+ } else {
+ instruction.mem_size = 8;
+ }
+ } else {
+ if instruction.opcode == Opcode::MOVLPD || instruction.opcode == Opcode::MOVHPD || instruction.opcode == Opcode::MOVHPS {
+ return Err(DecodeError::InvalidOperand);
+ }
+ }
+ }
+ OperandCode::PMOVX_G_E_xmm => {
+ let modrm = read_modrm(words)?;
+
+ instruction.regs[0] = RegSpec { bank: RegisterBank::X, num: (modrm >> 3) & 7 };
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operands[1] = read_E_xmm(words, instruction, modrm)?;
+ if instruction.opcode == Opcode::CVTTSD2SI || instruction.opcode == Opcode::CVTSD2SI {
+ instruction.regs[0].bank = RegisterBank::D;
+ }
+ if instruction.operands[1] != OperandSpec::RegMMM {
+ if [Opcode::PMOVSXBQ, Opcode::PMOVZXBQ].contains(&instruction.opcode) {
+ instruction.mem_size = 2;
+ } else if [Opcode::PMOVZXBD, Opcode::UCOMISS, Opcode::COMISS, Opcode::CVTSS2SD].contains(&instruction.opcode) {
+ instruction.mem_size = 4;
+ } else {
+ instruction.mem_size = 8;
+ }
+ } else {
+ if instruction.opcode == Opcode::MOVLPD || instruction.opcode == Opcode::MOVHPD {
+ return Err(DecodeError::InvalidOperand);
+ }
+ }
+ }
+ OperandCode::INV_Gv_M => {
+ let modrm = read_modrm(words)?;
+ if modrm >= 0xc0 {
+ return Err(DecodeError::InvalidOperand);
+ }
+
+ instruction.regs[0] = RegSpec { bank: RegisterBank::D, num: (modrm >> 3) & 7 };
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operands[1] = read_M(words, instruction, modrm)?;
+ if [Opcode::LFS, Opcode::LGS, Opcode::LSS].contains(&instruction.opcode) {
+ if instruction.prefixes.operand_size() {
+ instruction.mem_size = 4;
+ } else {
+ instruction.mem_size = 6;
+ }
+ } else if [Opcode::ENQCMD, Opcode::ENQCMDS].contains(&instruction.opcode) {
+ instruction.regs[0].bank = RegisterBank::W;
+ instruction.mem_size = 64;
+ } else {
+ instruction.mem_size = 16;
+ }
+ }
+ OperandCode::ModRM_0xc4 => {
+ let modrm = words.next().ok().ok_or(DecodeError::ExhaustedInput)?;
+ if modrm & 0b11000000 == 0b11000000 {
+ // interpret the c4 as a vex prefix
+ if instruction.prefixes.lock() || instruction.prefixes.operand_size() || instruction.prefixes.rep() || instruction.prefixes.repnz() {
+ // prefixes and then vex is invalid! reject it.
+ return Err(DecodeError::InvalidPrefixes);
+ } else {
+ vex::three_byte_vex(words, modrm, instruction)?;
+
+ if decoder != &InstDecoder::default() {
+ decoder.revise_instruction(instruction)?;
+ }
+ return Ok(());
+ }
+ } else {
+ // LES
+ instruction.regs[0] = RegSpec::from_parts((modrm >> 3) & 7, if instruction.prefixes.operand_size() { RegisterBank::D } else { RegisterBank::W });
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operands[1] = read_M(words, instruction, modrm)?;
+ if instruction.prefixes.operand_size() {
+ instruction.mem_size = 6;
+ } else {
+ instruction.mem_size = 4;
+ }
+ }
+ },
+ OperandCode::ModRM_0xc5 => {
+ let modrm = words.next().ok().ok_or(DecodeError::ExhaustedInput)?;
+ if (modrm & 0b1100_0000) == 0b1100_0000 {
+ // interpret the c5 as a vex prefix
+ if instruction.prefixes.lock() || instruction.prefixes.operand_size() || instruction.prefixes.rep() || instruction.prefixes.repnz() {
+ // prefixes and then vex is invalid! reject it.
+ return Err(DecodeError::InvalidPrefixes);
+ } else {
+ vex::two_byte_vex(words, modrm, instruction)?;
+
+ if decoder != &InstDecoder::default() {
+ decoder.revise_instruction(instruction)?;
+ }
+ return Ok(());
+ }
+ } else {
+ // LDS
+ instruction.regs[0] = RegSpec::from_parts((modrm >> 3) & 7, if instruction.prefixes.operand_size() { RegisterBank::D } else { RegisterBank::W });
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operands[1] = read_M(words, instruction, modrm)?;
+ if instruction.prefixes.operand_size() {
+ instruction.mem_size = 6;
+ } else {
+ instruction.mem_size = 4;
+ }
+ }
+ },
+ OperandCode::G_U_xmm_Ub => {
+ let modrm = read_modrm(words)?;
+
+ instruction.operands[1] = read_E_xmm(words, instruction, modrm)?;
+ if instruction.operands[1] != OperandSpec::RegMMM {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.regs[0] =
+ RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::D);
+ instruction.imm =
+ read_num(words, 1)? as u8 as u32;
+ instruction.operands[2] = OperandSpec::ImmU8;
+ instruction.operand_count = 3;
+ }
+ OperandCode::ModRM_0xf20f78 => {
+ instruction.opcode = Opcode::INSERTQ;
+
+ let modrm = read_modrm(words)?;
+
+ if modrm < 0b11_000_000 {
+ return Err(DecodeError::InvalidOperand);
+ }
+
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.regs[0] =
+ RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X);
+ instruction.operands[1] = OperandSpec::RegMMM;
+ instruction.regs[1] =
+ RegSpec::from_parts(modrm & 7, RegisterBank::X);
+ instruction.imm =
+ read_num(words, 1)? as u8 as u32;
+ instruction.disp =
+ read_num(words, 1)? as u8 as u32;
+ instruction.operands[2] = OperandSpec::ImmU8;
+ instruction.operands[3] = OperandSpec::ImmInDispField;
+ instruction.operand_count = 4;
+ }
+ OperandCode::ModRM_0x660f78 => {
+ instruction.opcode = Opcode::EXTRQ;
+
+ let modrm = read_modrm(words)?;
+
+ if modrm < 0b11_000_000 {
+ return Err(DecodeError::InvalidOperand);
+ }
+
+ if modrm >= 0b11_001_000 {
+ return Err(DecodeError::InvalidOperand);
+ }
+
+ instruction.operands[0] = OperandSpec::RegMMM;
+ instruction.regs[1] =
+ RegSpec::from_parts(modrm & 7, RegisterBank::X);
+ instruction.imm =
+ read_num(words, 1)? as u8 as u32;
+ instruction.disp =
+ read_num(words, 1)? as u8 as u32;
+ instruction.operands[1] = OperandSpec::ImmU8;
+ instruction.operands[2] = OperandSpec::ImmInDispField;
+ instruction.operand_count = 3;
+
+ }
+ OperandCode::G_E_xmm_Ub => {
+ let modrm = read_modrm(words)?;
+
+ instruction.operands[1] = read_E_xmm(words, instruction, modrm)?;
+ instruction.regs[0] =
+ RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X);
+ instruction.imm =
+ read_num(words, 1)? as u8 as u32;
+ if instruction.operands[1] != OperandSpec::RegMMM {
+ instruction.mem_size = 16;
+ }
+ instruction.operands[2] = OperandSpec::ImmU8;
+ instruction.operand_count = 3;
+ }
+ OperandCode::Gd_Ed => {
+ instruction.regs[0].bank = RegisterBank::D;
+ if mem_oper == OperandSpec::RegMMM {
+ instruction.regs[1].bank = RegisterBank::D;
+ } else {
+ instruction.mem_size = 4;
+ }
+ instruction.operands[1] = mem_oper;
+ instruction.operand_count = 2;
+ }
+ OperandCode::Md_Gd => {
+ instruction.regs[0].bank = RegisterBank::D;
+ if mem_oper == OperandSpec::RegMMM {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.mem_size = 4;
+ instruction.operands[1] = instruction.operands[0];
+ instruction.operands[0] = mem_oper;
+ instruction.operand_count = 2;
+ }
+ OperandCode::G_U_xmm => {
+ instruction.regs[0].bank = RegisterBank::X;
+ if mem_oper != OperandSpec::RegMMM {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.regs[1].bank = RegisterBank::X;
+ instruction.operand_count = 2;
+ },
+ OperandCode::Gv_Ev_Ib => {
+ instruction.operands[2] = OperandSpec::ImmI8;
+ instruction.operand_count = 3;
+ }
+ OperandCode::Gv_Ev_Iv => {
+ let opwidth = if instruction.prefixes.operand_size() {
+ 4
+ } else {
+ 2
+ };
+ instruction.imm =
+ read_imm_signed(words, opwidth)? as u32;
+ instruction.operands[2] = match opwidth {
+ 2 => OperandSpec::ImmI16,
+ 4 => OperandSpec::ImmI32,
+ _ => unsafe { unreachable_unchecked() }
+ };
+ instruction.operand_count = 3;
+ }
+ OperandCode::Ev_Gv_Ib => {
+ instruction.operands[0] = mem_oper;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.imm =
+ read_imm_signed(words, 1)? as u32;
+ instruction.operands[2] = OperandSpec::ImmI8;
+ instruction.operand_count = 3;
+ }
+ OperandCode::Ev_Gv_CL => {
+ instruction.operands[0] = mem_oper;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.operands[2] = OperandSpec::RegVex;
+ instruction.regs[3] = RegSpec::cl();
+ instruction.operand_count = 3;
+ }
+ OperandCode::G_mm_Ew_Ib => {
+ let modrm = read_modrm(words)?;
+
+ instruction.operands[1] = read_E(words, instruction, modrm, 4)?;
+ instruction.regs[0] =
+ RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::MM);
+ if instruction.operands[1] == OperandSpec::RegMMM {
+ instruction.regs[1].bank = RegisterBank::D;
+ } else {
+ instruction.mem_size = 2;
+ }
+ instruction.imm =
+ read_num(words, 1)? as u8 as u32;
+ instruction.operands[2] = OperandSpec::ImmI8;
+ instruction.operand_count = 3;
+ }
+ OperandCode::G_E_mm => {
+ instruction.regs[0].bank = RegisterBank::MM;
+ instruction.regs[0].num &= 0b111;
+ if mem_oper == OperandSpec::RegMMM {
+ instruction.regs[1].bank = RegisterBank::MM;
+ instruction.regs[1].num &= 0b111;
+ } else {
+ if [Opcode::PUNPCKLBW, Opcode::PUNPCKLWD, Opcode::PUNPCKLDQ].contains(&instruction.opcode) {
+ instruction.mem_size = 4;
+ } else {
+ instruction.mem_size = 8;
+ }
+ }
+ instruction.operand_count = 2;
+ },
+ OperandCode::G_U_mm => {
+ instruction.regs[0].bank = RegisterBank::D;
+ if mem_oper != OperandSpec::RegMMM {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.regs[1].bank = RegisterBank::MM;
+ instruction.regs[1].num &= 0b111;
+ instruction.operand_count = 2;
+ },
+ OperandCode::Gv_Ew_LSL => {
+ let modrm = read_modrm(words)?;
+ if !instruction.prefixes.operand_size() {
+ instruction.regs[0] =
+ RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::W);
+ } else {
+ instruction.regs[0] =
+ RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::W);
+ };
+
+ instruction.operands[1] = read_E(words, instruction, modrm, 2)?;
+ // lsl is weird. the full register width is written, but only the low 16 bits are used.
+ if instruction.operands[1] == OperandSpec::RegMMM {
+ instruction.regs[1].bank = RegisterBank::W;
+ } else {
+ instruction.mem_size = 2;
+ }
+ instruction.operand_count = 2;
+ },
+ OperandCode::Gd_Ev => {
+ let modrm = read_modrm(words)?;
+
+ let opwidth = if instruction.prefixes.operand_size() {
+ 4
+ } else {
+ 2
+ };
+ instruction.operands[1] = read_E(words, instruction, modrm, opwidth)?;
+ instruction.regs[0] =
+ RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::D);
+ instruction.operand_count = 2;
+ if instruction.operands[1] != OperandSpec::RegMMM {
+ instruction.mem_size = opwidth;
+ }
+ },
+ op @ OperandCode::AL_Ob |
+ op @ OperandCode::AX_Ov => {
+ instruction.regs[0] = match op {
+ OperandCode::AL_Ob => {
+ instruction.mem_size = 1;
+ RegSpec::al()
+ },
+ OperandCode::AX_Ov => {
+ if !instruction.prefixes.operand_size() {
+ instruction.mem_size = 2;
+ RegSpec::ax()
+ } else {
+ instruction.mem_size = 4;
+ RegSpec::eax()
+ }
+ }
+ _ => {
+ unsafe { unreachable_unchecked() }
+ }
+ };
+ let addr_width = if instruction.prefixes.address_size() { 4 } else { 2 };
+ let imm = read_num(words, addr_width)?;
+ instruction.disp = imm;
+ if instruction.prefixes.address_size() {
+ instruction.operands[1] = OperandSpec::DispU16;
+ } else {
+ instruction.operands[1] = OperandSpec::DispU32;
+ };
+ instruction.operand_count = 2;
+ }
+ op @ OperandCode::Ob_AL |
+ op @ OperandCode::Ov_AX => {
+ instruction.regs[0] = match op {
+ OperandCode::Ob_AL => {
+ instruction.mem_size = 1;
+ RegSpec::al()
+ },
+ OperandCode::Ov_AX => {
+ if !instruction.prefixes.operand_size() {
+ instruction.mem_size = 2;
+ RegSpec::ax()
+ } else {
+ instruction.mem_size = 4;
+ RegSpec::eax()
+ }
+ }
+ _ => {
+ unsafe { unreachable_unchecked() }
+ }
+ };
+ let addr_width = if instruction.prefixes.address_size() { 4 } else { 2 };
+ let imm = read_num(words, addr_width)?;
+ instruction.disp = imm;
+ instruction.operands[0] = if instruction.prefixes.address_size() {
+ OperandSpec::DispU16
+ } else {
+ OperandSpec::DispU32
+ };
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.operand_count = 2;
+ }
+ OperandCode::I_1 => {
+ instruction.imm = 1;
+ instruction.operands[0] = OperandSpec::ImmU8;
+ instruction.operand_count = 1;
+ }
+ /*
+ OperandCode::Unsupported => {
+ return Err(DecodeError::IncompleteDecoder);
+ }
+ */
+ OperandCode::Iw_Ib => {
+ instruction.disp = read_num(words, 2)?;
+ instruction.imm = read_num(words, 1)?;
+ instruction.operands[0] = OperandSpec::ImmInDispField;
+ instruction.operands[1] = OperandSpec::ImmU8;
+ instruction.operand_count = 2;
+ }
+ OperandCode::Fw => {
+ if !instruction.prefixes.operand_size() {
+ instruction.opcode = Opcode::IRET;
+ } else {
+ instruction.opcode = Opcode::IRETD;
+ }
+ instruction.operand_count = 0;
+ }
+ OperandCode::G_mm_U_mm => {
+ instruction.regs[0].bank = RegisterBank::MM;
+ if mem_oper != OperandSpec::RegMMM {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.regs[1].bank = RegisterBank::MM;
+ instruction.regs[1].num &= 0b111;
+ instruction.regs[0].num &= 0b111;
+ instruction.operand_count = 2;
+ },
+ OperandCode::E_G_q => {
+ if instruction.prefixes.operand_size() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+
+ let modrm = read_modrm(words)?;
+
+ instruction.operands[0] = read_E(words, instruction, modrm, 4)?;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.regs[0] =
+ RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::D);
+ instruction.operand_count = 2;
+ if instruction.operands[0] != OperandSpec::RegMMM {
+ instruction.mem_size = 4;
+ }
+ }
+ OperandCode::G_E_q => {
+ if instruction.prefixes.operand_size() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+
+ let modrm = read_modrm(words)?;
+
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.regs[0] =
+ RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::D);
+ instruction.operands[1] = read_E(words, instruction, modrm, 4)?;
+ if instruction.operands[0] != OperandSpec::RegMMM {
+ instruction.mem_size = 4;
+ }
+ instruction.operand_count = 2;
+ }
+ OperandCode::G_Mq_mm => {
+ instruction.operands[1] = instruction.operands[0];
+ instruction.operands[0] = mem_oper;
+ instruction.regs[0].bank = RegisterBank::MM;
+ if mem_oper == OperandSpec::RegMMM {
+ return Err(DecodeError::InvalidOperand);
+ } else {
+ instruction.mem_size = 8;
+ }
+ instruction.regs[0].num &= 0b111;
+ instruction.operand_count = 2;
+ },
+ OperandCode::MOVQ_f30f => {
+ instruction.operand_count = 2;
+ let modrm = read_modrm(words)?;
+ instruction.regs[0] =
+ RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X);
+ instruction.operands[1] = read_E_xmm(words, instruction, modrm)?;
+ if instruction.operands[1] != OperandSpec::RegMMM {
+ instruction.mem_size = 8;
+ }
+ }
+ OperandCode::ModRM_0x0f0d => {
+ let modrm = read_modrm(words)?;
+ let r = (modrm >> 3) & 0b111;
+
+ let opwidth = if instruction.prefixes.operand_size() {
+ 4
+ } else {
+ 2
+ };
+
+ match r {
+ 1 => {
+ instruction.opcode = Opcode::PREFETCHW;
+ }
+ _ => {
+ instruction.opcode = Opcode::NOP;
+ }
+ }
+ instruction.operands[0] = read_E(words, instruction, modrm, opwidth)?;
+ if instruction.operands[0] != OperandSpec::RegMMM {
+ instruction.mem_size = 64;
+ }
+ instruction.operand_count = 1;
+ }
+ OperandCode::ModRM_0x0f0f => {
+ // 3dnow instructions are WILD, the opcode is encoded as an imm8 trailing the
+ // instruction.
+
+ let modrm = read_modrm(words)?;
+ instruction.operands[1] = read_E_mm(words, instruction, modrm)?;
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.regs[0] = RegSpec { bank: RegisterBank::MM, num: (modrm >> 3) & 7 };
+ if instruction.operands[1] != OperandSpec::RegMMM {
+ instruction.mem_size = 8;
+ }
+
+ let opcode = read_modrm(words)?;
+ match opcode {
+ 0x0c => {
+ instruction.opcode = Opcode::PI2FW;
+ }
+ 0x0d => {
+ instruction.opcode = Opcode::PI2FD;
+ }
+ 0x1c => {
+ instruction.opcode = Opcode::PF2IW;
+ }
+ 0x1d => {
+ instruction.opcode = Opcode::PF2ID;
+ }
+ 0x8a => {
+ instruction.opcode = Opcode::PFNACC;
+ }
+ 0x8e => {
+ instruction.opcode = Opcode::PFPNACC;
+ }
+ 0x90 => {
+ instruction.opcode = Opcode::PFCMPGE;
+ }
+ 0x94 => {
+ instruction.opcode = Opcode::PFMIN;
+ }
+ 0x96 => {
+ instruction.opcode = Opcode::PFRCP;
+ }
+ 0x97 => {
+ instruction.opcode = Opcode::PFRSQRT;
+ }
+ 0x9a => {
+ instruction.opcode = Opcode::PFSUB;
+ }
+ 0x9e => {
+ instruction.opcode = Opcode::PFADD;
+ }
+ 0xa0 => {
+ instruction.opcode = Opcode::PFCMPGT;
+ }
+ 0xa4 => {
+ instruction.opcode = Opcode::PFMAX;
+ }
+ 0xa6 => {
+ instruction.opcode = Opcode::PFRCPIT1;
+ }
+ 0xa7 => {
+ instruction.opcode = Opcode::PFRSQIT1;
+ }
+ 0xaa => {
+ instruction.opcode = Opcode::PFSUBR;
+ }
+ 0xae => {
+ instruction.opcode = Opcode::PFACC;
+ }
+ 0xb0 => {
+ instruction.opcode = Opcode::PFCMPEQ;
+ }
+ 0xb4 => {
+ instruction.opcode = Opcode::PFMUL;
+ }
+ 0xb6 => {
+ instruction.opcode = Opcode::PFRCPIT2;
+ }
+ 0xb7 => {
+ instruction.opcode = Opcode::PMULHRW;
+ }
+ 0xbb => {
+ instruction.opcode = Opcode::PSWAPD;
+ }
+ 0xbf => {
+ instruction.opcode = Opcode::PAVGUSB;
+ }
+ _ => {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ }
+ OperandCode::ModRM_0x0fc7 => {
+ if instruction.prefixes.repnz() {
+ let modrm = read_modrm(words)?;
+ let is_reg = (modrm & 0xc0) == 0xc0;
+
+ let r = (modrm >> 3) & 7;
+ match r {
+ 1 => {
+ if is_reg {
+ return Err(DecodeError::InvalidOperand);
+ } else {
+ instruction.opcode = Opcode::CMPXCHG8B;
+ instruction.mem_size = 8;
+ instruction.operand_count = 1;
+ instruction.operands[0] = read_E(words, instruction, modrm, 4)?;
+ }
+ return Ok(());
+ }
+ _ => {
+ return Err(DecodeError::InvalidOperand);
+ }
+ }
+ }
+ if instruction.prefixes.operand_size() {
+ let opwidth = if instruction.prefixes.operand_size() {
+ 4
+ } else {
+ 2
+ };
+ let modrm = read_modrm(words)?;
+ let is_reg = (modrm & 0xc0) == 0xc0;
+
+ let r = (modrm >> 3) & 7;
+ match r {
+ 1 => {
+ if is_reg {
+ return Err(DecodeError::InvalidOperand);
+ } else {
+ instruction.opcode = Opcode::CMPXCHG8B;
+ instruction.mem_size = 8;
+ instruction.operand_count = 1;
+ instruction.operands[0] = read_E(words, instruction, modrm, 4)?;
+ }
+ return Ok(());
+ }
+ 6 => {
+ instruction.opcode = Opcode::VMCLEAR;
+ instruction.operands[0] = read_E(words, instruction, modrm, opwidth)?;
+ if instruction.operands[0] == OperandSpec::RegMMM {
+ // this would be invalid as `vmclear`, so fall back to the parse as
+ // 66-prefixed rdrand. this is a register operand, so just demote it to the
+ // dword-form operand:
+ instruction.regs[1] = RegSpec { bank: RegisterBank::D, num: instruction.regs[1].num };
+ instruction.opcode = Opcode::RDRAND;
+ } else {
+ instruction.mem_size = 8;
+ }
+ instruction.operand_count = 1;
+ return Ok(());
+ }
+ 7 => {
+ instruction.operands[0] = read_E(words, instruction, modrm, opwidth)?;
+ if instruction.operands[0] == OperandSpec::RegMMM {
+ // this would be invalid as `vmclear`, so fall back to the parse as
+ // 66-prefixed rdrand. this is a register operand, so just demote it to the
+ // dword-form operand:
+ instruction.regs[1] = RegSpec { bank: RegisterBank::D, num: instruction.regs[1].num };
+ instruction.opcode = Opcode::RDSEED;
+ } else {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ instruction.operand_count = 1;
+ return Ok(());
+ }
+ _ => {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ }
+
+ if instruction.prefixes.rep() {
+ let opwidth = if instruction.prefixes.operand_size() {
+ 4
+ } else {
+ 2
+ };
+ let modrm = read_modrm(words)?;
+ let is_reg = (modrm & 0xc0) == 0xc0;
+
+ let r = (modrm >> 3) & 7;
+ match r {
+ 1 => {
+ if is_reg {
+ return Err(DecodeError::InvalidOperand);
+ } else {
+ instruction.opcode = Opcode::CMPXCHG8B;
+ instruction.mem_size = 8;
+ instruction.operand_count = 1;
+ instruction.operands[0] = read_E(words, instruction, modrm, 4)?;
+ }
+ }
+ 6 => {
+ instruction.opcode = Opcode::VMXON;
+ instruction.operands[0] = read_E(words, instruction, modrm, opwidth)?;
+ if instruction.operands[0] == OperandSpec::RegMMM {
+ // invalid as `vmxon`, reg-form is `senduipi`
+ instruction.opcode = Opcode::SENDUIPI;
+ // and the operand is always a dword register
+ instruction.regs[1].bank = RegisterBank::D;
+ } else {
+ instruction.mem_size = 8;
+ }
+ instruction.operand_count = 1;
+ }
+ 7 => {
+ instruction.opcode = Opcode::RDPID;
+ instruction.operands[0] = read_E(words, instruction, modrm, 4)?;
+ if instruction.operands[0] != OperandSpec::RegMMM {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.operand_count = 1;
+ }
+ _ => {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ return Ok(());
+ }
+
+ let modrm = read_modrm(words)?;
+ let is_reg = (modrm & 0xc0) == 0xc0;
+
+ let r = (modrm >> 3) & 0b111;
+
+ let opcode = match r {
+ 0b001 => {
+ if is_reg {
+ return Err(DecodeError::InvalidOperand);
+ } else {
+ instruction.mem_size = 8;
+ Opcode::CMPXCHG8B
+ }
+ }
+ 0b011 => {
+ if is_reg {
+ return Err(DecodeError::InvalidOperand);
+ } else {
+ instruction.mem_size = 63;
+ Opcode::XRSTORS
+ }
+ }
+ 0b100 => {
+ if is_reg {
+ return Err(DecodeError::InvalidOperand);
+ } else {
+ instruction.mem_size = 63;
+ Opcode::XSAVEC
+ }
+ }
+ 0b101 => {
+ if is_reg {
+ return Err(DecodeError::InvalidOperand);
+ } else {
+ instruction.mem_size = 63;
+ Opcode::XSAVES
+ }
+ }
+ 0b110 => {
+ if is_reg {
+ Opcode::RDRAND
+ } else {
+ instruction.mem_size = 8;
+ Opcode::VMPTRLD
+ }
+ }
+ 0b111 => {
+ if is_reg {
+ Opcode::RDSEED
+ } else {
+ instruction.mem_size = 8;
+ Opcode::VMPTRST
+ }
+ }
+ _ => {
+ return Err(DecodeError::InvalidOperand);
+ }
+ };
+
+ instruction.opcode = opcode;
+ instruction.operand_count = 1;
+ let opwidth = if instruction.prefixes.operand_size() {
+ 4
+ } else {
+ 2
+ };
+ instruction.operands[0] = read_E(words, instruction, modrm, opwidth)?;
+ },
+ OperandCode::ModRM_0x0f71 => {
+ if instruction.prefixes.rep() || instruction.prefixes.repnz() {
+ return Err(DecodeError::InvalidOperand);
+ }
+
+ instruction.operand_count = 2;
+
+ let modrm = read_modrm(words)?;
+ if modrm & 0xc0 != 0xc0 {
+ return Err(DecodeError::InvalidOperand);
+ }
+
+ let r = (modrm >> 3) & 7;
+ match r {
+ 2 => {
+ instruction.opcode = Opcode::PSRLW;
+ }
+ 4 => {
+ instruction.opcode = Opcode::PSRAW;
+ }
+ 6 => {
+ instruction.opcode = Opcode::PSLLW;
+ }
+ _ => {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+
+ if instruction.prefixes.operand_size() {
+ instruction.regs[1] = RegSpec { bank: RegisterBank::X, num: modrm & 7 };
+ } else {
+ instruction.regs[1] = RegSpec { bank: RegisterBank::MM, num: modrm & 7 };
+ }
+ instruction.operands[0] = OperandSpec::RegMMM;
+ instruction.imm = read_imm_signed(words, 1)? as u32;
+ instruction.operands[1] = OperandSpec::ImmU8;
+ },
+ OperandCode::ModRM_0x0f72 => {
+ if instruction.prefixes.rep() || instruction.prefixes.repnz() {
+ return Err(DecodeError::InvalidOperand);
+ }
+
+ instruction.operand_count = 2;
+
+ let modrm = read_modrm(words)?;
+ if modrm & 0xc0 != 0xc0 {
+ return Err(DecodeError::InvalidOperand);
+ }
+
+ let r = (modrm >> 3) & 7;
+ match r {
+ 2 => {
+ instruction.opcode = Opcode::PSRLD;
+ }
+ 4 => {
+ instruction.opcode = Opcode::PSRAD;
+ }
+ 6 => {
+ instruction.opcode = Opcode::PSLLD;
+ }
+ _ => {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+
+ if instruction.prefixes.operand_size() {
+ instruction.regs[1] = RegSpec { bank: RegisterBank::X, num: modrm & 7 };
+ } else {
+ instruction.regs[1] = RegSpec { bank: RegisterBank::MM, num: modrm & 7 };
+ }
+ instruction.operands[0] = OperandSpec::RegMMM;
+ instruction.imm = read_imm_signed(words, 1)? as u32;
+ instruction.operands[1] = OperandSpec::ImmU8;
+ },
+ OperandCode::ModRM_0x0f73 => {
+ if instruction.prefixes.rep() || instruction.prefixes.repnz() {
+ return Err(DecodeError::InvalidOperand);
+ }
+
+ instruction.operand_count = 2;
+
+ let modrm = read_modrm(words)?;
+ if modrm & 0xc0 != 0xc0 {
+ return Err(DecodeError::InvalidOperand);
+ }
+
+ let r = (modrm >> 3) & 7;
+ match r {
+ 2 => {
+ instruction.opcode = Opcode::PSRLQ;
+ }
+ 3 => {
+ if !instruction.prefixes.operand_size() {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.opcode = Opcode::PSRLDQ;
+ }
+ 6 => {
+ instruction.opcode = Opcode::PSLLQ;
+ }
+ 7 => {
+ if !instruction.prefixes.operand_size() {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.opcode = Opcode::PSLLDQ;
+ }
+ _ => {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+
+ if instruction.prefixes.operand_size() {
+ instruction.regs[1] = RegSpec { bank: RegisterBank::X, num: modrm & 7 };
+ } else {
+ instruction.regs[1] = RegSpec { bank: RegisterBank::MM, num: modrm & 7 };
+ }
+ instruction.operands[0] = OperandSpec::RegMMM;
+ instruction.imm = read_imm_signed(words, 1)? as u32;
+ instruction.operands[1] = OperandSpec::ImmU8;
+ },
+ OperandCode::ModRM_0xf30f38d8 => {
+ let modrm = read_modrm(words)?;
+ let r = (modrm >> 3) & 7;
+ instruction.mem_size = 63;
+ match r {
+ 0b000 => {
+ if modrm >= 0b11_000_000 {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.mem_size = 48;
+ instruction.opcode = Opcode::AESENCWIDE128KL;
+ instruction.operands[0] = read_M(words, instruction, modrm)?;
+ return Ok(());
+ }
+ 0b001 => {
+ if modrm >= 0b11_000_000 {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.mem_size = 48;
+ instruction.opcode = Opcode::AESDECWIDE128KL;
+ instruction.operands[0] = read_M(words, instruction, modrm)?;
+ return Ok(());
+ }
+ 0b010 => {
+ if modrm >= 0b11_000_000 {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.mem_size = 64;
+ instruction.opcode = Opcode::AESENCWIDE256KL;
+ instruction.operands[0] = read_M(words, instruction, modrm)?;
+ return Ok(());
+ }
+ 0b011 => {
+ if modrm >= 0b11_000_000 {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.mem_size = 64;
+ instruction.opcode = Opcode::AESDECWIDE256KL;
+ instruction.operands[0] = read_M(words, instruction, modrm)?;
+ return Ok(());
+ }
+ _ => {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ }
+ OperandCode::ModRM_0xf30f38dc => {
+ read_operands(decoder, words, instruction, OperandCode::G_E_xmm)?;
+ if let OperandSpec::RegMMM = instruction.operands[1] {
+ instruction.opcode = Opcode::LOADIWKEY;
+ } else {
+ instruction.mem_size = 48;
+ instruction.opcode = Opcode::AESENC128KL;
+ }
+ }
+ OperandCode::ModRM_0xf30f38dd => {
+ read_operands(decoder, words, instruction, OperandCode::G_E_xmm)?;
+ if let OperandSpec::RegMMM = instruction.operands[1] {
+ return Err(DecodeError::InvalidOperand);
+ } else {
+ instruction.mem_size = 48;
+ instruction.opcode = Opcode::AESDEC128KL;
+ }
+ }
+ OperandCode::ModRM_0xf30f38de => {
+ read_operands(decoder, words, instruction, OperandCode::G_E_xmm)?;
+ if let OperandSpec::RegMMM = instruction.operands[1] {
+ return Err(DecodeError::InvalidOperand);
+ } else {
+ instruction.mem_size = 64;
+ instruction.opcode = Opcode::AESENC256KL;
+ }
+ }
+ OperandCode::ModRM_0xf30f38df => {
+ read_operands(decoder, words, instruction, OperandCode::G_E_xmm)?;
+ if let OperandSpec::RegMMM = instruction.operands[1] {
+ return Err(DecodeError::InvalidOperand);
+ } else {
+ instruction.mem_size = 64;
+ instruction.opcode = Opcode::AESDEC256KL;
+ }
+ }
+ OperandCode::ModRM_0xf30f38fa => {
+ instruction.opcode = Opcode::ENCODEKEY128;
+ read_operands(decoder, words, instruction, OperandCode::G_U_xmm)?;
+ instruction.regs[0].bank = RegisterBank::D;
+ instruction.regs[1].bank = RegisterBank::D;
+ }
+ OperandCode::ModRM_0xf30f38fb => {
+ instruction.opcode = Opcode::ENCODEKEY256;
+ read_operands(decoder, words, instruction, OperandCode::G_U_xmm)?;
+ instruction.regs[0].bank = RegisterBank::D;
+ instruction.regs[1].bank = RegisterBank::D;
+ }
+ OperandCode::ModRM_0xf30f3af0 => {
+ let modrm = words.next().ok().ok_or(DecodeError::ExhaustedInput)?;
+ if modrm & 0xc0 != 0xc0 {
+ return Err(DecodeError::InvalidOpcode);
+ // invalid
+ }
+ instruction.opcode = Opcode::HRESET;
+ instruction.imm = read_num(words, 1)?;
+ instruction.operands[0] = OperandSpec::ImmU8;
+ }
+ OperandCode::G_mm_Ed => {
+ instruction.regs[0].bank = RegisterBank::MM;
+ instruction.regs[0].num &= 0b111;
+ if mem_oper == OperandSpec::RegMMM {
+ instruction.regs[1].bank = RegisterBank::D;
+ } else {
+ instruction.mem_size = 4;
+ }
+ }
+ OperandCode::G_mm_E => {
+ instruction.regs[0].bank = RegisterBank::MM;
+ instruction.regs[0].num &= 0b111;
+ if mem_oper == OperandSpec::RegMMM {
+ instruction.regs[1].bank = RegisterBank::MM;
+ instruction.regs[1].num &= 0b111;
+ } else {
+ instruction.mem_size = 8;
+ }
+ }
+ OperandCode::Ed_G_mm => {
+ instruction.operands[1] = instruction.operands[0];
+ instruction.operands[0] = mem_oper;
+ instruction.regs[0].bank = RegisterBank::MM;
+ instruction.regs[0].num &= 0b111;
+ if mem_oper == OperandSpec::RegMMM {
+ instruction.regs[1].bank = RegisterBank::D;
+ } else {
+ instruction.mem_size = 4;
+ }
+ }
+ OperandCode::Ed_G_xmm => {
+ instruction.operands[1] = instruction.operands[0];
+ instruction.operands[0] = mem_oper;
+ instruction.regs[0].bank = RegisterBank::Y;
+ if mem_oper == OperandSpec::RegMMM {
+ instruction.regs[1].bank = RegisterBank::D;
+ } else {
+ instruction.mem_size = 4;
+ }
+ }
+ OperandCode::E_G_mm => {
+ instruction.operands[1] = instruction.operands[0];
+ instruction.operands[0] = mem_oper;
+ instruction.regs[0].bank = RegisterBank::MM;
+ instruction.regs[0].num &= 0b111;
+ if mem_oper == OperandSpec::RegMMM {
+ instruction.regs[1].bank = RegisterBank::MM;
+ instruction.regs[1].num &= 0b111;
+ } else {
+ instruction.mem_size = 8;
+ }
+ }
+ OperandCode::G_xmm_Ew_Ib => {
+ instruction.operands[2] = OperandSpec::ImmU8;
+ instruction.operand_count = 3;
+ instruction.imm =
+ read_num(words, 1)?;
+ instruction.regs[0].bank = RegisterBank::X;
+ if mem_oper == OperandSpec::RegMMM {
+ instruction.regs[1].bank = RegisterBank::D;
+ } else {
+ instruction.mem_size = 2;
+ }
+ },
+ OperandCode::G_xmm_Ed => {
+ instruction.regs[0].bank = RegisterBank::X;
+ if mem_oper == OperandSpec::RegMMM {
+ instruction.regs[1].bank = RegisterBank::D;
+ } else {
+ instruction.mem_size = 4;
+ }
+ },
+ OperandCode::G_mm_E_xmm => {
+ instruction.regs[0].bank = RegisterBank::MM;
+ instruction.regs[0].num &= 0b111;
+ if mem_oper == OperandSpec::RegMMM {
+ instruction.regs[1].bank = RegisterBank::X;
+ } else {
+ instruction.mem_size = 16;
+ }
+ },
+ op @ OperandCode::G_xmm_U_mm |
+ op @ OperandCode::G_xmm_E_mm => {
+ instruction.regs[0].bank = RegisterBank::X;
+ if mem_oper == OperandSpec::RegMMM {
+ instruction.regs[1].bank = RegisterBank::MM;
+ instruction.regs[1].num &= 0b111;
+ } else {
+ if op == OperandCode::G_xmm_U_mm {
+ return Err(DecodeError::InvalidOperand);
+ } else {
+ instruction.mem_size = 8;
+ }
+ }
+ },
+ OperandCode::Rv_Gmm_Ib => {
+ instruction.operands[2] = OperandSpec::ImmU8;
+ instruction.operand_count = 3;
+ instruction.imm =
+ read_num(words, 1)?;
+ instruction.regs[0].bank = RegisterBank::D;
+ if mem_oper == OperandSpec::RegMMM {
+ instruction.regs[1].bank = RegisterBank::MM;
+ instruction.regs[1].num &= 0b111;
+ } else {
+ return Err(DecodeError::InvalidOperand);
+ }
+ }
+ OperandCode::U_mm_G_xmm => {
+ instruction.regs[1].bank = RegisterBank::X;
+ if mem_oper == OperandSpec::RegMMM {
+ instruction.regs[0].bank = RegisterBank::MM;
+ instruction.regs[0].num &= 0b111;
+ } else {
+ return Err(DecodeError::InvalidOperand);
+ }
+ }
+ // sure hope these aren't backwards huh
+ OperandCode::AL_Xb => {
+ instruction.regs[0] = RegSpec::al();
+ instruction.regs[1] = RegSpec::esi();
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operands[1] = OperandSpec::Deref;
+ instruction.mem_size = 1;
+ instruction.operand_count = 2;
+ }
+ OperandCode::Yb_Xb => {
+ instruction.operands[0] = OperandSpec::Deref_edi;
+ instruction.operands[1] = OperandSpec::Deref_esi;
+ instruction.mem_size = 1;
+ instruction.operand_count = 2;
+ }
+ OperandCode::Yb_AL => {
+ instruction.regs[0] = RegSpec::al();
+ instruction.regs[1] = RegSpec::esi();
+ instruction.operands[0] = OperandSpec::Deref;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.mem_size = 1;
+ instruction.operand_count = 2;
+ }
+ OperandCode::AX_Xv => {
+ instruction.regs[0] = if instruction.prefixes.operand_size() {
+ instruction.mem_size = 2;
+ RegSpec::ax()
+ } else {
+ instruction.mem_size = 4;
+ RegSpec::eax()
+ };
+ instruction.regs[1] = RegSpec::esi();
+ instruction.operands[1] = OperandSpec::Deref;
+ }
+ OperandCode::Yv_AX => {
+ instruction.regs[0] = if !instruction.prefixes.operand_size() {
+ instruction.mem_size = 2;
+ RegSpec::ax()
+ } else {
+ instruction.mem_size = 4;
+ RegSpec::eax()
+ };
+ if instruction.prefixes.address_size() {
+ instruction.operands[0] = OperandSpec::Deref_edi;
+ } else {
+ instruction.operands[0] = OperandSpec::Deref_di;
+ }
+ instruction.operands[1] = OperandSpec::RegRRR;
+ }
+ OperandCode::Yv_Xv => {
+ instruction.mem_size = if !instruction.prefixes.operand_size() {
+ 2
+ } else {
+ 4
+ };
+ if instruction.prefixes.address_size() {
+ instruction.operands[0] = OperandSpec::Deref_edi;
+ instruction.operands[1] = OperandSpec::Deref_esi;
+ } else {
+ instruction.operands[0] = OperandSpec::Deref_di;
+ instruction.operands[1] = OperandSpec::Deref_si;
+ }
+ }
+ OperandCode::ModRM_0x0f12 => {
+ instruction.regs[0].bank = RegisterBank::X;
+ instruction.operands[1] = mem_oper;
+ if instruction.operands[1] == OperandSpec::RegMMM {
+ if instruction.prefixes.operand_size() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ instruction.regs[1].bank = RegisterBank::X;
+ instruction.opcode = Opcode::MOVHLPS;
+ } else {
+ instruction.mem_size = 8;
+ if instruction.prefixes.operand_size() {
+ instruction.opcode = Opcode::MOVLPD;
+ } else {
+ instruction.opcode = Opcode::MOVLPS;
+ }
+ }
+ }
+ OperandCode::ModRM_0x0f16 => {
+ instruction.regs[0].bank = RegisterBank::X;
+ instruction.operands[1] = mem_oper;
+ if instruction.operands[1] == OperandSpec::RegMMM {
+ instruction.regs[1].bank = RegisterBank::X;
+ if instruction.prefixes.operand_size() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ instruction.opcode = Opcode::MOVLHPS;
+ } else {
+ instruction.mem_size = 8;
+ if instruction.prefixes.operand_size() {
+ instruction.opcode = Opcode::MOVHPD;
+ } else {
+ instruction.opcode = Opcode::MOVHPS;
+ }
+ }
+ }
+ OperandCode::ModRM_0x0f18 => {
+ let rrr = instruction.regs[0].num & 0b111;
+ instruction.operands[0] = mem_oper;
+ instruction.operand_count = 1;
+ instruction.opcode = if mem_oper == OperandSpec::RegMMM && rrr < 4 {
+ Opcode::NOP
+ } else {
+ match rrr {
+ 0 => Opcode::PREFETCHNTA,
+ 1 => Opcode::PREFETCH0,
+ 2 => Opcode::PREFETCH1,
+ 3 => Opcode::PREFETCH2,
+ _ => Opcode::NOP,
+ }
+ };
+ if mem_oper != OperandSpec::RegMMM {
+ instruction.mem_size = 64;
+ }
+ }
+ OperandCode::Gd_U_xmm => {
+ if instruction.operands[1] != OperandSpec::RegMMM {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.regs[0].bank = RegisterBank::D;
+ instruction.regs[1].bank = RegisterBank::X;
+ }
+ OperandCode::Gv_E_xmm => {
+ // in real-mode the reigster is always dword, regardless of prefixing
+ instruction.regs[0].bank = RegisterBank::D;
+ if instruction.operands[1] == OperandSpec::RegMMM {
+ instruction.regs[1].bank = RegisterBank::X;
+ } else {
+ instruction.mem_size = 4;
+ }
+ }
+ OperandCode::M_G_xmm => {
+ // in real-mode the reigster is always dword, regardless of prefixing
+ instruction.regs[0].bank = RegisterBank::D;
+ instruction.operands[1] = instruction.operands[0];
+ instruction.operands[0] = mem_oper;
+ if instruction.operands[0] == OperandSpec::RegMMM {
+ return Err(DecodeError::InvalidOperand);
+ } else {
+ if instruction.opcode == Opcode::MOVNTSS {
+ instruction.mem_size = 4;
+ } else if instruction.opcode == Opcode::MOVNTPD || instruction.opcode == Opcode::MOVNTDQ || instruction.opcode == Opcode::MOVNTPS {
+ instruction.mem_size = 16;
+ } else {
+ instruction.mem_size = 8;
+ }
+ }
+ instruction.regs[0].bank = RegisterBank::X;
+ }
+ OperandCode::Ew_Gw => {
+ let modrm = read_modrm(words)?;
+
+ instruction.regs[0] =
+ RegSpec { bank: RegisterBank::W, num: (modrm >> 3) & 7 };
+ instruction.operands[0] = read_E(words, instruction, modrm, 2)?;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.mem_size = 2;
+ instruction.operand_count = 2;
+ },
+ OperandCode::Ew_Sw => {
+ let opwidth = 2;
+ let modrm = read_modrm(words)?;
+
+ // check r
+ if ((modrm >> 3) & 7) > 5 {
+ // return Err(()); //Err("Invalid r".to_owned());
+ return Err(DecodeError::InvalidOperand);
+ }
+
+ instruction.regs[0] =
+ RegSpec { bank: RegisterBank::S, num: (modrm >> 3) & 7 };
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.operand_count = 2;
+
+ let mod_bits = modrm >> 6;
+ if mod_bits == 0b11 {
+ instruction.regs[1] =
+ RegSpec { bank: RegisterBank::W, num: modrm & 7};
+ instruction.operands[0] = OperandSpec::RegMMM;
+ } else {
+ instruction.operands[0] = read_E(words, instruction, modrm, opwidth)?;
+ instruction.mem_size = 2;
+ }
+ },
+ OperandCode::Sw_Ew => {
+ let modrm = read_modrm(words)?;
+
+ // check r
+ if ((modrm >> 3) & 7) > 5 {
+ // return Err(()); // Err("Invalid r".to_owned());
+ return Err(DecodeError::InvalidOperand);
+ }
+
+ instruction.regs[0] =
+ RegSpec { bank: RegisterBank::S, num: (modrm >> 3) & 7 };
+
+ // quoth the manual:
+ // ```
+ // The MOV instruction cannot be used to load the CS register. Attempting to do so
+ // results in an invalid opcode excep-tion (#UD). To load the CS register, use the far
+ // JMP, CALL, or RET instruction.
+ // ```
+ if instruction.regs[0].num == 1 {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operand_count = 2;
+
+ let mod_bits = modrm >> 6;
+ if mod_bits == 0b11 {
+ instruction.regs[1] =
+ RegSpec { bank: RegisterBank::W, num: modrm & 7};
+ instruction.operands[1] = OperandSpec::RegMMM;
+ } else {
+ instruction.operands[1] = read_M(words, instruction, modrm)?;
+ instruction.mem_size = 2;
+ }
+ },
+ OperandCode::CVT_AA => {
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ instruction.opcode = if instruction.prefixes.operand_size() {
+ Opcode::CWDE
+ } else {
+ Opcode::CBW
+ };
+ }
+ OperandCode::CVT_DA => {
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ instruction.opcode = if instruction.prefixes.operand_size() {
+ Opcode::CDQ
+ } else {
+ Opcode::CWD
+ };
+ }
+ OperandCode::Ib => {
+ instruction.operands[0] = OperandSpec::ImmU8;
+ instruction.operand_count = 1;
+ }
+ OperandCode::Iw => {
+ instruction.imm =
+ read_imm_unsigned(words, 2)?;
+ instruction.operands[0] = OperandSpec::ImmU16;
+ instruction.operand_count = 1;
+ }
+ OperandCode::ModRM_0x0f00 => {
+ instruction.operand_count = 1;
+ let modrm = read_modrm(words)?;
+ let r = (modrm >> 3) & 7;
+ if r == 0 {
+ instruction.opcode = Opcode::SLDT;
+ } else if r == 1 {
+ instruction.opcode = Opcode::STR;
+ } else if r == 2 {
+ instruction.opcode = Opcode::LLDT;
+ } else if r == 3 {
+ instruction.opcode = Opcode::LTR;
+ } else if r == 4 {
+ instruction.opcode = Opcode::VERR;
+ } else if r == 5 {
+ instruction.opcode = Opcode::VERW;
+ } else if r == 6 {
+ // TODO: this would be jmpe for x86-on-itanium systems.
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ return Err(DecodeError::InvalidOperand);
+ } else if r == 7 {
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ return Err(DecodeError::InvalidOperand);
+ } else {
+ unreachable!("r <= 8");
+ }
+ instruction.operands[0] = read_E(words, instruction, modrm, 2)?;
+ if instruction.operands[0] != OperandSpec::RegMMM {
+ instruction.mem_size = 2;
+ }
+ }
+ OperandCode::ModRM_0x0f01 => {
+ let opwidth = if instruction.prefixes.operand_size() {
+ 2
+ } else {
+ 4
+ };
+ let modrm = read_modrm(words)?;
+ let r = (modrm >> 3) & 7;
+ if r == 0 {
+ let mod_bits = modrm >> 6;
+ let m = modrm & 7;
+ if mod_bits == 0b11 {
+ if instruction.prefixes.rep() || instruction.prefixes.repnz() || instruction.prefixes.operand_size() {
+ return Err(DecodeError::InvalidOperand);
+ }
+
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ match m {
+ 0b000 => {
+ instruction.opcode = Opcode::ENCLV;
+ },
+ 0b001 => {
+ instruction.opcode = Opcode::VMCALL;
+ },
+ 0b010 => {
+ instruction.opcode = Opcode::VMLAUNCH;
+ },
+ 0b011 => {
+ instruction.opcode = Opcode::VMRESUME;
+ },
+ 0b100 => {
+ instruction.opcode = Opcode::VMXOFF;
+ },
+ _ => {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ } else {
+ instruction.opcode = Opcode::SGDT;
+ instruction.operand_count = 1;
+ instruction.mem_size = 63;
+ instruction.operands[0] = read_E(words, instruction, modrm, opwidth)?;
+ }
+ } else if r == 1 {
+ let mod_bits = modrm >> 6;
+ let m = modrm & 7;
+ if mod_bits == 0b11 {
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ if instruction.prefixes.rep() || instruction.prefixes.repnz() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ if instruction.prefixes.operand_size() {
+ match m {
+ 0b100 => {
+ instruction.opcode = Opcode::TDCALL;
+ }
+ 0b101 => {
+ instruction.opcode = Opcode::SEAMRET;
+ }
+ 0b110 => {
+ instruction.opcode = Opcode::SEAMOPS;
+ }
+ 0b111 => {
+ instruction.opcode = Opcode::SEAMCALL;
+ }
+ _ => {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ } else {
+ match m {
+ 0b000 => {
+ instruction.opcode = Opcode::MONITOR;
+ }
+ 0b001 => {
+ instruction.opcode = Opcode::MWAIT;
+ },
+ 0b010 => {
+ instruction.opcode = Opcode::CLAC;
+ }
+ 0b011 => {
+ instruction.opcode = Opcode::STAC;
+ }
+ 0b111 => {
+ instruction.opcode = Opcode::ENCLS;
+ }
+ _ => {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ }
+ } else {
+ instruction.opcode = Opcode::SIDT;
+ instruction.operand_count = 1;
+ instruction.mem_size = 63;
+ instruction.operands[0] = read_E(words, instruction, modrm, opwidth)?;
+ }
+ } else if r == 2 {
+ let mod_bits = modrm >> 6;
+ let m = modrm & 7;
+ if mod_bits == 0b11 {
+ if instruction.prefixes.rep() || instruction.prefixes.repnz() || instruction.prefixes.operand_size() {
+ return Err(DecodeError::InvalidOperand);
+ }
+
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ match m {
+ 0b000 => {
+ instruction.opcode = Opcode::XGETBV;
+ }
+ 0b001 => {
+ instruction.opcode = Opcode::XSETBV;
+ }
+ 0b100 => {
+ instruction.opcode = Opcode::VMFUNC;
+ }
+ 0b101 => {
+ instruction.opcode = Opcode::XEND;
+ }
+ 0b110 => {
+ instruction.opcode = Opcode::XTEST;
+ }
+ 0b111 => {
+ instruction.opcode = Opcode::ENCLU;
+ }
+ _ => {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ } else {
+ instruction.opcode = Opcode::LGDT;
+ instruction.operand_count = 1;
+ instruction.mem_size = 63;
+ instruction.operands[0] = read_E(words, instruction, modrm, opwidth)?;
+ }
+ } else if r == 3 {
+ let mod_bits = modrm >> 6;
+ let m = modrm & 7;
+ if mod_bits == 0b11 {
+ match m {
+ 0b000 => {
+ instruction.opcode = Opcode::VMRUN;
+ instruction.operand_count = 1;
+ instruction.regs[0] = RegSpec::ax();
+ instruction.operands[0] = OperandSpec::RegRRR;
+ },
+ 0b001 => {
+ instruction.opcode = Opcode::VMMCALL;
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ },
+ 0b010 => {
+ instruction.opcode = Opcode::VMLOAD;
+ instruction.operand_count = 1;
+ instruction.regs[0] = RegSpec::ax();
+ instruction.operands[0] = OperandSpec::RegRRR;
+ },
+ 0b011 => {
+ instruction.opcode = Opcode::VMSAVE;
+ instruction.operand_count = 1;
+ instruction.regs[0] = RegSpec::ax();
+ instruction.operands[0] = OperandSpec::RegRRR;
+ },
+ 0b100 => {
+ instruction.opcode = Opcode::STGI;
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ },
+ 0b101 => {
+ instruction.opcode = Opcode::CLGI;
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ },
+ 0b110 => {
+ instruction.opcode = Opcode::SKINIT;
+ instruction.operand_count = 1;
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.regs[0] = RegSpec::eax();
+ },
+ 0b111 => {
+ instruction.opcode = Opcode::INVLPGA;
+ instruction.operand_count = 2;
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operands[1] = OperandSpec::RegMMM;
+ instruction.regs[0] = RegSpec::ax();
+ instruction.regs[1] = RegSpec::ecx();
+ },
+ _ => {
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ return Err(DecodeError::InvalidOperand);
+ }
+ }
+ } else {
+ instruction.opcode = Opcode::LIDT;
+ instruction.operand_count = 1;
+ instruction.mem_size = 63;
+ instruction.operands[0] = read_E(words, instruction, modrm, opwidth)?;
+ }
+ } else if r == 4 {
+ // TODO: this permits storing only to word-size registers
+ // spec suggets this might do something different for f.ex rdi?
+ instruction.opcode = Opcode::SMSW;
+ instruction.operand_count = 1;
+ instruction.mem_size = 2;
+ instruction.operands[0] = read_E(words, instruction, modrm, 2)?;
+ } else if r == 5 {
+ let mod_bits = modrm >> 6;
+ if mod_bits != 0b11 {
+ if !instruction.prefixes.rep() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ instruction.opcode = Opcode::RSTORSSP;
+ instruction.operands[0] = read_E(words, instruction, modrm, 4)?;
+ instruction.mem_size = 8;
+ instruction.operand_count = 1;
+ return Ok(());
+ }
+
+ let m = modrm & 7;
+ match m {
+ 0b000 => {
+ if instruction.prefixes.repnz() {
+ instruction.opcode = Opcode::XSUSLDTRK;
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ return Ok(());
+ }
+ if !instruction.prefixes.rep() || instruction.prefixes.repnz() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ instruction.opcode = Opcode::SETSSBSY;
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ }
+ 0b001 => {
+ if instruction.prefixes.repnz() {
+ instruction.opcode = Opcode::XRESLDTRK;
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ return Ok(());
+ } else {
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ 0b010 => {
+ if !instruction.prefixes.rep() || instruction.prefixes.repnz() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ instruction.opcode = Opcode::SAVEPREVSSP;
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ }
+ 0b100 => {
+ if instruction.prefixes.rep() {
+ instruction.opcode = Opcode::UIRET;
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ } else {
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ 0b101 => {
+ if instruction.prefixes.rep() {
+ instruction.opcode = Opcode::TESTUI;
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ } else {
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ 0b110 => {
+ if instruction.prefixes.rep() {
+ instruction.opcode = Opcode::CLUI;
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ return Ok(());
+ } else if instruction.prefixes.operand_size() || instruction.prefixes.repnz() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ instruction.opcode = Opcode::RDPKRU;
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ }
+ 0b111 => {
+ if instruction.prefixes.rep() {
+ instruction.opcode = Opcode::STUI;
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ return Ok(());
+ } else if instruction.prefixes.operand_size() || instruction.prefixes.repnz() {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ instruction.opcode = Opcode::WRPKRU;
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ }
+ _ => {
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ } else if r == 6 {
+ instruction.opcode = Opcode::LMSW;
+ instruction.operand_count = 1;
+ instruction.mem_size = 2;
+ instruction.operands[0] = read_E(words, instruction, modrm, 2)?;
+ } else if r == 7 {
+ let mod_bits = modrm >> 6;
+ let m = modrm & 7;
+ if mod_bits == 0b11 {
+ if m == 0 {
+ // swapgs is not valid in modes other than 64-bit
+ return Err(DecodeError::InvalidOpcode);
+ } else if m == 1 {
+ instruction.opcode = Opcode::RDTSCP;
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ } else if m == 2 {
+ instruction.opcode = Opcode::MONITORX;
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ } else if m == 3 {
+ instruction.opcode = Opcode::MWAITX;
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ } else if m == 4 {
+ instruction.opcode = Opcode::CLZERO;
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ } else if m == 5 {
+ instruction.opcode = Opcode::RDPRU;
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.regs[0] = RegSpec::ecx();
+ instruction.operand_count = 1;
+ } else if m == 6 {
+ if instruction.prefixes.rep() {
+ if instruction.prefixes.repnz() || instruction.prefixes.operand_size() {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.opcode = Opcode::RMPADJUST;
+ instruction.operand_count = 0;
+ return Ok(());
+ } else if instruction.prefixes.repnz() {
+ if instruction.prefixes.rep() || instruction.prefixes.operand_size() {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.opcode = Opcode::RMPUPDATE;
+ instruction.operand_count = 0;
+ return Ok(());
+ } else if instruction.prefixes.operand_size() {
+ return Err(DecodeError::InvalidOperand);
+ }
+
+ instruction.opcode = Opcode::INVLPGB;
+ instruction.operand_count = 3;
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operands[1] = OperandSpec::RegMMM;
+ instruction.operands[2] = OperandSpec::RegVex;
+ instruction.regs[0] = RegSpec::eax();
+ instruction.regs[1] = RegSpec::edx();
+ instruction.regs[3] = RegSpec::ecx();
+ } else if m == 7 {
+ if instruction.prefixes.rep() {
+ if instruction.prefixes.repnz() || instruction.prefixes.operand_size() {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.opcode = Opcode::PSMASH;
+ instruction.operand_count = 0;
+ return Ok(());
+ } else if instruction.prefixes.repnz() {
+ if instruction.prefixes.rep() || instruction.prefixes.operand_size() {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.opcode = Opcode::PVALIDATE;
+ instruction.operand_count = 0;
+ return Ok(());
+ } else if instruction.prefixes.operand_size() {
+ return Err(DecodeError::InvalidOperand);
+ }
+
+ instruction.opcode = Opcode::TLBSYNC;
+ instruction.operand_count = 0;
+ } else {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ } else {
+ instruction.opcode = Opcode::INVLPG;
+ instruction.operand_count = 1;
+ instruction.mem_size = 1;
+ instruction.operands[0] = read_E(words, instruction, modrm, opwidth)?;
+ }
+ } else {
+ unreachable!("r <= 8");
+ }
+ }
+ OperandCode::ModRM_0x0fae => {
+ let modrm = read_modrm(words)?;
+ let r = (modrm >> 3) & 7;
+ let m = modrm & 7;
+
+ if instruction.prefixes.operand_size() && !(instruction.prefixes.rep() || instruction.prefixes.repnz()) {
+ instruction.prefixes.unset_operand_size();
+ if modrm < 0xc0 {
+ instruction.opcode = match (modrm >> 3) & 7 {
+ 6 => {
+ Opcode::CLWB
+ }
+ 7 => {
+ Opcode::CLFLUSHOPT
+ }
+ _ => {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ };
+ instruction.operands[0] = read_E(words, instruction, modrm, 1 /* opwidth */)?;
+ instruction.mem_size = 64;
+ instruction.operand_count = 1;
+ } else {
+ instruction.opcode = match (modrm >> 3) & 7 {
+ 6 => {
+ Opcode::TPAUSE
+ }
+ _ => {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ };
+ instruction.operands[0] = read_E(words, instruction, modrm, 4)?;
+ instruction.operand_count = 1;
+ }
+
+ return Ok(());
+ }
+
+ if instruction.prefixes.repnz() {
+ if (modrm & 0xc0) == 0xc0 {
+ match r {
+ 6 => {
+ instruction.opcode = Opcode::UMWAIT;
+ instruction.regs[0] = RegSpec {
+ bank: RegisterBank::D,
+ num: m,
+ };
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operand_count = 1;
+ }
+ _ => {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ return Ok(());
+ }
+ }
+
+ if instruction.prefixes.rep() {
+ if r == 4 {
+ if instruction.prefixes.operand_size() {
+ // xed specifically rejects this. seeems out of line since rep takes
+ // precedence elsewhere, but ok i guess
+ return Err(DecodeError::InvalidOpcode);
+ }
+ instruction.opcode = Opcode::PTWRITE;
+ instruction.operands[0] = read_E(words, instruction, modrm, 4)?;
+ if instruction.operands[0] != OperandSpec::RegMMM {
+ instruction.mem_size = 4;
+ }
+ instruction.operand_count = 1;
+ return Ok(());
+ }
+ if (modrm & 0xc0) == 0xc0 {
+ match r {
+ 0 => {
+ instruction.opcode = Opcode::RDFSBASE;
+ instruction.regs[1] = RegSpec::from_parts(m, RegisterBank::D);
+ instruction.operands[0] = OperandSpec::RegMMM;
+ instruction.operand_count = 1;
+ }
+ 1 => {
+ instruction.opcode = Opcode::RDGSBASE;
+ instruction.regs[1] = RegSpec::from_parts(m, RegisterBank::D);
+ instruction.operands[0] = OperandSpec::RegMMM;
+ instruction.operand_count = 1;
+
+ }
+ 2 => {
+ instruction.opcode = Opcode::WRFSBASE;
+ instruction.regs[1] = RegSpec::from_parts(m, RegisterBank::D);
+ instruction.operands[0] = OperandSpec::RegMMM;
+ instruction.operand_count = 1;
+ }
+ 3 => {
+ instruction.opcode = Opcode::WRGSBASE;
+ instruction.regs[1] = RegSpec::from_parts(m, RegisterBank::D);
+ instruction.operands[0] = OperandSpec::RegMMM;
+ instruction.operand_count = 1;
+ }
+ 5 => {
+ instruction.opcode = Opcode::INCSSP;
+ instruction.regs[1] = RegSpec::from_parts(m, RegisterBank::D);
+ instruction.operands[0] = OperandSpec::RegMMM;
+ instruction.operand_count = 1;
+ }
+ 6 => {
+ instruction.opcode = Opcode::UMONITOR;
+ if !instruction.prefixes.address_size() {
+ instruction.regs[1] = RegSpec::from_parts(m, RegisterBank::W);
+ } else {
+ instruction.regs[1] = RegSpec::from_parts(m, RegisterBank::D);
+ };
+ instruction.operands[0] = OperandSpec::RegMMM;
+ instruction.operand_count = 1;
+ }
+ _ => {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ return Ok(());
+ } else {
+ match r {
+ 6 => {
+ instruction.opcode = Opcode::CLRSSBSY;
+ instruction.operands[0] = read_E(words, instruction, modrm, 4)?;
+ instruction.operand_count = 1;
+ instruction.mem_size = 8;
+ return Ok(());
+ }
+ _ => {
+ return Err(DecodeError::InvalidOperand);
+ }
+ }
+ }
+ }
+
+ let mod_bits = modrm >> 6;
+
+ // all the 0b11 instructions are err or no-operands
+ if mod_bits == 0b11 {
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ match r {
+ // invalid rrr for 0x0fae, mod: 11
+ 0 | 1 | 2 | 3 | 4 => {
+ return Err(DecodeError::InvalidOpcode);
+ },
+ 5 => {
+ instruction.opcode = Opcode::LFENCE;
+ // Intel's manual accepts m != 0, AMD supports m != 0 though the manual
+ // doesn't say (tested on threadripper)
+ if !decoder.amd_quirks() && !decoder.intel_quirks() {
+ if m != 0 {
+ return Err(DecodeError::InvalidOperand);
+ }
+ }
+ },
+ 6 => {
+ instruction.opcode = Opcode::MFENCE;
+ // Intel's manual accepts m != 0, AMD supports m != 0 though the manual
+ // doesn't say (tested on threadripper)
+ if !decoder.amd_quirks() && !decoder.intel_quirks() {
+ if m != 0 {
+ return Err(DecodeError::InvalidOperand);
+ }
+ }
+ },
+ 7 => {
+ instruction.opcode = Opcode::SFENCE;
+ // Intel's manual accepts m != 0, AMD supports m != 0 though the manual
+ // doesn't say (tested on threadripper)
+ if !decoder.amd_quirks() && !decoder.intel_quirks() {
+ if m != 0 {
+ return Err(DecodeError::InvalidOperand);
+ }
+ }
+ },
+ _ => { unsafe { unreachable_unchecked() } /* r <=7 */ }
+ }
+ } else {
+ // these can't be prefixed, so says `xed` i guess.
+ if instruction.prefixes.operand_size() || instruction.prefixes.rep() || instruction.prefixes.repnz() {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.operand_count = 1;
+ let (opcode, mem_size) = [
+ (Opcode::FXSAVE, 63),
+ (Opcode::FXRSTOR, 63),
+ (Opcode::LDMXCSR, 4),
+ (Opcode::STMXCSR, 4),
+ (Opcode::XSAVE, 63),
+ (Opcode::XRSTOR, 63),
+ (Opcode::XSAVEOPT, 63),
+ (Opcode::CLFLUSH, 64),
+ ][r as usize];
+ instruction.opcode = opcode;
+ instruction.mem_size = mem_size;
+ instruction.operands[0] = read_M(words, instruction, modrm)?;
+ }
+ },
+ OperandCode::ModRM_0x0fba => {
+ let opwidth = if instruction.prefixes.operand_size() {
+ 4
+ } else {
+ 2
+ };
+ let modrm = read_modrm(words)?;
+ let r = (modrm >> 3) & 7;
+ match r {
+ 0 | 1 | 2 | 3 => {
+ return Err(DecodeError::InvalidOpcode);
+ },
+ 4 => {
+ instruction.opcode = Opcode::BT;
+ }
+ 5 => {
+ instruction.opcode = Opcode::BTS;
+ }
+ 6 => {
+ instruction.opcode = Opcode::BTR;
+ }
+ 7 => {
+ instruction.opcode = Opcode::BTC;
+ }
+ _ => {
+ unreachable!("r < 8");
+ }
+ }
+
+ instruction.operands[0] = read_E(words, instruction, modrm, opwidth)?;
+ if instruction.operands[0] != OperandSpec::RegMMM {
+ instruction.mem_size = opwidth;
+ }
+
+ instruction.imm = read_imm_signed(words, 1)? as u32;
+ instruction.operands[1] = OperandSpec::ImmI8;
+ instruction.operand_count = 2;
+ }
+ op @ OperandCode::Rq_Cq_0 |
+ op @ OperandCode::Rq_Dq_0 |
+ op @ OperandCode::Cq_Rq_0 |
+ op @ OperandCode::Dq_Rq_0 => {
+ let modrm = read_modrm(words)?;
+ let m = modrm & 7;
+ let r = (modrm >> 3) & 7;
+
+ let bank = match op {
+ OperandCode::Rq_Cq_0 |
+ OperandCode::Cq_Rq_0 => {
+ if r != 0 && r != 2 && r != 3 && r != 4 {
+ return Err(DecodeError::InvalidOperand);
+ }
+ RegisterBank::CR
+ },
+ OperandCode::Rq_Dq_0 |
+ OperandCode::Dq_Rq_0 => {
+ if r > 7 { // unreachable but mirrors x86_64 code
+ return Err(DecodeError::InvalidOperand);
+ }
+ RegisterBank::DR
+ },
+ _ => unsafe { unreachable_unchecked() }
+ };
+ let (rrr, mmm) = match op {
+ OperandCode::Rq_Cq_0 |
+ OperandCode::Rq_Dq_0 => (1, 0),
+ OperandCode::Cq_Rq_0 |
+ OperandCode::Dq_Rq_0 => (0, 1),
+ _ => unsafe { unreachable_unchecked() }
+ };
+
+ instruction.regs[0] =
+ RegSpec { bank: bank, num: r };
+ instruction.regs[1] =
+ RegSpec { bank: RegisterBank::D, num: m };
+ instruction.operands[mmm] = OperandSpec::RegMMM;
+ instruction.operands[rrr] = OperandSpec::RegRRR;
+ instruction.operand_count = 2;
+ }
+ OperandCode::FS => {
+ instruction.regs[0] = RegSpec::fs();
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operand_count = 1;
+ }
+ OperandCode::GS => {
+ instruction.regs[0] = RegSpec::gs();
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operand_count = 1;
+ }
+ OperandCode::CS => {
+ instruction.regs[0] = RegSpec::cs();
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operand_count = 1;
+ }
+ OperandCode::DS => {
+ instruction.regs[0] = RegSpec::ds();
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operand_count = 1;
+ }
+ OperandCode::ES => {
+ instruction.regs[0] = RegSpec::es();
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operand_count = 1;
+ }
+ OperandCode::SS => {
+ instruction.regs[0] = RegSpec::ss();
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operand_count = 1;
+ }
+ OperandCode::AL_Ib => {
+ instruction.regs[0] =
+ RegSpec::al();
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operands[1] = OperandSpec::ImmU8;
+ instruction.operand_count = 2;
+ }
+ OperandCode::AX_Ib => {
+ instruction.regs[0] = if !instruction.prefixes.operand_size() {
+ RegSpec::ax()
+ } else {
+ RegSpec::eax()
+ };
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operands[1] = OperandSpec::ImmU8;
+ instruction.operand_count = 2;
+ }
+ OperandCode::Ib_AL => {
+ instruction.regs[0] =
+ RegSpec::al();
+ instruction.operands[0] = OperandSpec::ImmU8;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.operand_count = 2;
+ }
+ OperandCode::Ib_AX => {
+ instruction.regs[0] = if !instruction.prefixes.operand_size() {
+ RegSpec::ax()
+ } else {
+ RegSpec::eax()
+ };
+ instruction.operands[0] = OperandSpec::ImmU8;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.operand_count = 2;
+ }
+ OperandCode::AX_DX => {
+ instruction.regs[0] = if !instruction.prefixes.operand_size() {
+ RegSpec::ax()
+ } else {
+ RegSpec::eax()
+ };
+ instruction.regs[1] = RegSpec::dx();
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operands[1] = OperandSpec::RegMMM;
+ instruction.operand_count = 2;
+ }
+ OperandCode::AL_DX => {
+ instruction.regs[0] = RegSpec::al();
+ instruction.regs[1] = RegSpec::dx();
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operands[1] = OperandSpec::RegMMM;
+ instruction.operand_count = 2;
+ }
+ OperandCode::DX_AX => {
+ instruction.regs[0] = if !instruction.prefixes.operand_size() {
+ RegSpec::ax()
+ } else {
+ RegSpec::eax()
+ };
+ instruction.regs[1] = RegSpec::dx();
+ instruction.operands[0] = OperandSpec::RegMMM;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.operand_count = 2;
+ }
+ OperandCode::DX_AL => {
+ instruction.regs[0] = RegSpec::al();
+ instruction.regs[1] = RegSpec::dx();
+ instruction.operands[0] = OperandSpec::RegMMM;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.operand_count = 2;
+ }
+ OperandCode::Yb_DX => {
+ instruction.regs[0] = RegSpec::dl();
+ instruction.regs[1] = RegSpec::edi();
+ instruction.operands[0] = OperandSpec::Deref;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.operand_count = 2;
+ instruction.mem_size = 1;
+ }
+ OperandCode::Yv_DX => {
+ instruction.regs[0] = RegSpec::dx();
+ instruction.regs[1] = RegSpec::edi();
+ instruction.operands[0] = OperandSpec::Deref;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ if instruction.prefixes.operand_size() {
+ instruction.mem_size = 4;
+ } else {
+ instruction.mem_size = 2;
+ }
+ instruction.operand_count = 2;
+ }
+ OperandCode::DX_Xb => {
+ instruction.regs[0] = RegSpec::dl();
+ instruction.regs[1] = RegSpec::esi();
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operands[1] = OperandSpec::Deref;
+ instruction.operand_count = 2;
+ instruction.mem_size = 1;
+ }
+ OperandCode::AH => {
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ }
+ OperandCode::DX_Xv => {
+ instruction.regs[0] = RegSpec::dx();
+ instruction.regs[1] = RegSpec::esi();
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operands[1] = OperandSpec::Deref;
+ if instruction.prefixes.operand_size() {
+ instruction.mem_size = 4;
+ } else {
+ instruction.mem_size = 2;
+ }
+ instruction.operand_count = 2;
+ }
+ OperandCode::x87_d8 |
+ OperandCode::x87_d9 |
+ OperandCode::x87_da |
+ OperandCode::x87_db |
+ OperandCode::x87_dc |
+ OperandCode::x87_dd |
+ OperandCode::x87_de |
+ OperandCode::x87_df => {
+ return decode_x87(words, instruction, operand_code);
+ }
+ OperandCode::M_Gv => {
+ // `lea` operands (`Gv_M`) opportunistically reject a register form of `mmm` early, but
+ // leaves `M_Gv` to test memory-ness of the `mmm` operand directly. also, swap
+ // operands.
+ if let OperandSpec::RegMMM = instruction.operands[1] {
+ return Err(DecodeError::InvalidOperand);
+ }
+ let temp = instruction.operands[1];
+ instruction.operands[1] = instruction.operands[0];
+ instruction.operands[0] = temp;
+ }
+ OperandCode::ModRM_0x62 => {
+ let modrm = read_modrm(words)?;
+
+ if modrm < 0xc0 {
+ instruction.regs[0] =
+ RegSpec { bank: RegisterBank::D, num: (modrm >> 3) & 7 };
+ if instruction.prefixes.operand_size() {
+ instruction.regs[0].bank = RegisterBank::W;
+ instruction.mem_size = 4;
+ } else {
+ instruction.mem_size = 8;
+ }
+
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.operands[1] = read_M(words, instruction, modrm)?;
+ instruction.operand_count = 2;
+ } else {
+ let prefixes = &instruction.prefixes;
+ if prefixes.lock() || prefixes.operand_size() || prefixes.rep_any() {
+ return Err(DecodeError::InvalidPrefixes);
+ } else {
+ evex::read_evex(words, instruction, Some(modrm))?;
+ }
+ }
+ }
+ _ => {
+ // TODO: this should be unreachable - safe to panic now?
+ // can't simply delete this arm because the non-unlikely operands are handled outside
+ // here, and some operands are entirely decoded before reaching match in the first
+ // place.
+ // perhaps fully-decoded operands could be a return here? they would be jump table
+ // entries anyway, so no extra space for the dead arms.
+ instruction.operands[0] = OperandSpec::Nothing;
+ instruction.operand_count = 0;
+ return Err(DecodeError::InvalidOperand);
+ }
+ };
+ Ok(())
+}
+
+fn decode_x87<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpeax_arch::Arch>::Word>>(words: &mut T, instruction: &mut Instruction, operand_code: OperandCode) -> Result<(), DecodeError> {
+ #[allow(non_camel_case_types)]
+ enum OperandCodeX87 {
+ Est,
+ St_Est,
+ St_Edst,
+ St_Eqst,
+ St_Ew,
+ St_Mw,
+ St_Md,
+ St_Mq,
+ St_Mm,
+ Ew,
+ Est_St,
+ Edst_St,
+ Eqst_St,
+ Ed_St,
+ Mw_St,
+ Md_St,
+ Mq_St,
+ Mm_St,
+ Ex87S,
+ Nothing,
+ }
+
+ // every x87 instruction is conditional on rrr bits
+ let modrm = read_modrm(words)?;
+ let r = (modrm >> 3) & 0b111;
+
+ let (opcode, x87_operands) = match operand_code {
+ OperandCode::x87_d8 => {
+ match r {
+ 0 => (Opcode::FADD, OperandCodeX87::St_Edst),
+ 1 => (Opcode::FMUL, OperandCodeX87::St_Edst),
+ 2 => (Opcode::FCOM, OperandCodeX87::St_Edst),
+ 3 => (Opcode::FCOMP, OperandCodeX87::St_Edst),
+ 4 => (Opcode::FSUB, OperandCodeX87::St_Edst),
+ 5 => (Opcode::FSUBR, OperandCodeX87::St_Edst),
+ 6 => (Opcode::FDIV, OperandCodeX87::St_Edst),
+ 7 => (Opcode::FDIVR, OperandCodeX87::St_Edst),
+ _ => { unreachable!("impossible r"); }
+ }
+ }
+ OperandCode::x87_d9 => {
+ match r {
+ 0 => (Opcode::FLD, OperandCodeX87::St_Edst),
+ 1 => {
+ if modrm >= 0xc0 {
+ (Opcode::FXCH, OperandCodeX87::St_Est)
+ } else {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ },
+ 2 => {
+ if modrm >= 0xc0 {
+ if modrm == 0xd0 {
+ (Opcode::FNOP, OperandCodeX87::Nothing)
+ } else {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ } else {
+ (Opcode::FST, OperandCodeX87::Ed_St)
+ }
+ }
+ 3 => {
+ if modrm >= 0xc0 {
+ (Opcode::FSTPNCE, OperandCodeX87::Est_St)
+ } else {
+ (Opcode::FSTP, OperandCodeX87::Edst_St)
+ }
+ },
+ 4 => {
+ if modrm >= 0xc0 {
+ match modrm {
+ 0xe0 => (Opcode::FCHS, OperandCodeX87::Nothing),
+ 0xe1 => (Opcode::FABS, OperandCodeX87::Nothing),
+ 0xe2 => { return Err(DecodeError::InvalidOpcode); },
+ 0xe3 => { return Err(DecodeError::InvalidOpcode); },
+ 0xe4 => (Opcode::FTST, OperandCodeX87::Nothing),
+ 0xe5 => (Opcode::FXAM, OperandCodeX87::Nothing),
+ 0xe6 => { return Err(DecodeError::InvalidOpcode); },
+ 0xe7 => { return Err(DecodeError::InvalidOpcode); },
+ _ => { unreachable!("invalid modrm"); }
+ }
+ } else {
+ (Opcode::FLDENV, OperandCodeX87::Ex87S) // x87 state
+ }
+ },
+ 5 => {
+ if modrm >= 0xc0 {
+ match modrm {
+ 0xe8 => (Opcode::FLD1, OperandCodeX87::Nothing),
+ 0xe9 => (Opcode::FLDL2T, OperandCodeX87::Nothing),
+ 0xea => (Opcode::FLDL2E, OperandCodeX87::Nothing),
+ 0xeb => (Opcode::FLDPI, OperandCodeX87::Nothing),
+ 0xec => (Opcode::FLDLG2, OperandCodeX87::Nothing),
+ 0xed => (Opcode::FLDLN2, OperandCodeX87::Nothing),
+ 0xee => (Opcode::FLDZ, OperandCodeX87::Nothing),
+ 0xef => (Opcode::Invalid, OperandCodeX87::Nothing),
+ _ => { unreachable!("invalid modrm"); }
+ }
+ } else {
+ (Opcode::FLDCW, OperandCodeX87::Ew)
+ }
+ }
+ 6 => {
+ if modrm >= 0xc0 {
+ match modrm {
+ 0xf0 => (Opcode::F2XM1, OperandCodeX87::Nothing),
+ 0xf1 => (Opcode::FYL2X, OperandCodeX87::Nothing),
+ 0xf2 => (Opcode::FPTAN, OperandCodeX87::Nothing),
+ 0xf3 => (Opcode::FPATAN, OperandCodeX87::Nothing),
+ 0xf4 => (Opcode::FXTRACT, OperandCodeX87::Nothing),
+ 0xf5 => (Opcode::FPREM1, OperandCodeX87::Nothing),
+ 0xf6 => (Opcode::FDECSTP, OperandCodeX87::Nothing),
+ 0xf7 => (Opcode::FINCSTP, OperandCodeX87::Nothing),
+ _ => { unreachable!("invalid modrm"); }
+ }
+ } else {
+ (Opcode::FNSTENV, OperandCodeX87::Ex87S) // x87 state
+ }
+ }
+ 7 => {
+ if modrm >= 0xc0 {
+ match modrm {
+ 0xf8 => (Opcode::FPREM, OperandCodeX87::Nothing),
+ 0xf9 => (Opcode::FYL2XP1, OperandCodeX87::Nothing),
+ 0xfa => (Opcode::FSQRT, OperandCodeX87::Nothing),
+ 0xfb => (Opcode::FSINCOS, OperandCodeX87::Nothing),
+ 0xfc => (Opcode::FRNDINT, OperandCodeX87::Nothing),
+ 0xfd => (Opcode::FSCALE, OperandCodeX87::Nothing),
+ 0xfe => (Opcode::FSIN, OperandCodeX87::Nothing),
+ 0xff => (Opcode::FCOS, OperandCodeX87::Nothing),
+ _ => { unreachable!("invalid modrm"); }
+ }
+ } else {
+ (Opcode::FNSTCW, OperandCodeX87::Ew)
+ }
+ }
+ _ => { unreachable!("impossible r"); }
+ }
+ }
+ OperandCode::x87_da => {
+ if modrm >= 0xc0 {
+ match r {
+ 0 => (Opcode::FCMOVB, OperandCodeX87::St_Est),
+ 1 => (Opcode::FCMOVE, OperandCodeX87::St_Est),
+ 2 => (Opcode::FCMOVBE, OperandCodeX87::St_Est),
+ 3 => (Opcode::FCMOVU, OperandCodeX87::St_Est),
+ _ => {
+ if modrm == 0xe9 {
+ (Opcode::FUCOMPP, OperandCodeX87::Nothing)
+ } else {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ }
+ } else {
+ match r {
+ 0 => (Opcode::FIADD, OperandCodeX87::St_Md), // 0xd9d0 -> fnop
+ 1 => (Opcode::FIMUL, OperandCodeX87::St_Md),
+ 2 => (Opcode::FICOM, OperandCodeX87::St_Md), // FCMOVE
+ 3 => (Opcode::FICOMP, OperandCodeX87::St_Md), // FCMOVBE
+ 4 => (Opcode::FISUB, OperandCodeX87::St_Md),
+ 5 => (Opcode::FISUBR, OperandCodeX87::St_Md), // FUCOMPP
+ 6 => (Opcode::FIDIV, OperandCodeX87::St_Md),
+ 7 => (Opcode::FIDIVR, OperandCodeX87::St_Md),
+ _ => { unreachable!("impossible r"); }
+ }
+ }
+ }
+ OperandCode::x87_db => {
+ if modrm >= 0xc0 {
+ match r {
+ 0 => (Opcode::FCMOVNB, OperandCodeX87::St_Est),
+ 1 => (Opcode::FCMOVNE, OperandCodeX87::St_Est),
+ 2 => (Opcode::FCMOVNBE, OperandCodeX87::St_Est),
+ 3 => (Opcode::FCMOVNU, OperandCodeX87::St_Est),
+ 4 => {
+ match modrm {
+ 0xe0 => (Opcode::FENI8087_NOP, OperandCodeX87::Nothing),
+ 0xe1 => (Opcode::FDISI8087_NOP, OperandCodeX87::Nothing),
+ 0xe2 => (Opcode::FNCLEX, OperandCodeX87::Nothing),
+ 0xe3 => (Opcode::FNINIT, OperandCodeX87::Nothing),
+ 0xe4 => (Opcode::FSETPM287_NOP, OperandCodeX87::Nothing),
+ _ => {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ }
+ 5 => (Opcode::FUCOMI, OperandCodeX87::St_Est),
+ 6 => (Opcode::FCOMI, OperandCodeX87::St_Est),
+ _ => {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ } else {
+ match r {
+ 0 => (Opcode::FILD, OperandCodeX87::St_Md),
+ 1 => (Opcode::FISTTP, OperandCodeX87::Md_St),
+ 2 => (Opcode::FIST, OperandCodeX87::Md_St),
+ 3 => (Opcode::FISTP, OperandCodeX87::Md_St),
+ 5 => (Opcode::FLD, OperandCodeX87::St_Mm), // 80bit
+ 7 => (Opcode::FSTP, OperandCodeX87::Mm_St), // 80bit
+ _ => {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ }
+ }
+
+ }
+ OperandCode::x87_dc => {
+ // mod=11 swaps operand order for some instructions
+ if modrm >= 0xc0 {
+ match r {
+ 0 => (Opcode::FADD, OperandCodeX87::Eqst_St),
+ 1 => (Opcode::FMUL, OperandCodeX87::Eqst_St),
+ 2 => (Opcode::FCOM, OperandCodeX87::St_Eqst),
+ 3 => (Opcode::FCOMP, OperandCodeX87::St_Eqst),
+ 4 => (Opcode::FSUBR, OperandCodeX87::Eqst_St),
+ 5 => (Opcode::FSUB, OperandCodeX87::Eqst_St),
+ 6 => (Opcode::FDIVR, OperandCodeX87::Eqst_St),
+ 7 => (Opcode::FDIV, OperandCodeX87::Eqst_St),
+ _ => { unreachable!("impossible r"); }
+ }
+ } else {
+ match r {
+ 0 => (Opcode::FADD, OperandCodeX87::St_Eqst),
+ 1 => (Opcode::FMUL, OperandCodeX87::St_Eqst),
+ 2 => (Opcode::FCOM, OperandCodeX87::St_Eqst),
+ 3 => (Opcode::FCOMP, OperandCodeX87::St_Eqst),
+ 4 => (Opcode::FSUB, OperandCodeX87::St_Eqst),
+ 5 => (Opcode::FSUBR, OperandCodeX87::St_Eqst),
+ 6 => (Opcode::FDIV, OperandCodeX87::St_Eqst),
+ 7 => (Opcode::FDIVR, OperandCodeX87::St_Eqst),
+ _ => { unreachable!("impossible r"); }
+ }
+ }
+ }
+ OperandCode::x87_dd => {
+ if modrm >= 0xc0 {
+ match r {
+ 0 => (Opcode::FFREE, OperandCodeX87::Est),
+ 1 => (Opcode::FXCH, OperandCodeX87::St_Est),
+ 2 => (Opcode::FST, OperandCodeX87::Est_St),
+ 3 => (Opcode::FSTP, OperandCodeX87::Est_St),
+ 4 => (Opcode::FUCOM, OperandCodeX87::St_Est),
+ 5 => (Opcode::FUCOMP, OperandCodeX87::St_Est),
+ 6 => (Opcode::Invalid, OperandCodeX87::Nothing),
+ 7 => (Opcode::Invalid, OperandCodeX87::Nothing),
+ _ => { unreachable!("impossible r"); }
+ }
+ } else {
+ match r {
+ 0 => (Opcode::FLD, OperandCodeX87::St_Eqst),
+ 1 => (Opcode::FISTTP, OperandCodeX87::Eqst_St),
+ 2 => (Opcode::FST, OperandCodeX87::Eqst_St),
+ 3 => (Opcode::FSTP, OperandCodeX87::Eqst_St),
+ 4 => (Opcode::FRSTOR, OperandCodeX87::Ex87S),
+ 5 => (Opcode::Invalid, OperandCodeX87::Nothing),
+ 6 => (Opcode::FNSAVE, OperandCodeX87::Ex87S),
+ 7 => (Opcode::FNSTSW, OperandCodeX87::Ew),
+ _ => { unreachable!("impossible r"); }
+ }
+ }
+ }
+ OperandCode::x87_de => {
+ if modrm >= 0xc0 {
+ match r {
+ 0 => (Opcode::FADDP, OperandCodeX87::Est_St),
+ 1 => (Opcode::FMULP, OperandCodeX87::Est_St),
+ // undocumented in intel manual, argument order inferred from
+ // by xed and capstone. TODO: check amd manual.
+ 2 => (Opcode::FCOMP, OperandCodeX87::St_Est),
+ 3 => {
+ if modrm == 0xd9 {
+ (Opcode::FCOMPP, OperandCodeX87::Nothing)
+ } else {
+ return Err(DecodeError::InvalidOperand);
+ }
+ },
+ 4 => (Opcode::FSUBRP, OperandCodeX87::Est_St),
+ 5 => (Opcode::FSUBP, OperandCodeX87::Est_St),
+ 6 => (Opcode::FDIVRP, OperandCodeX87::Est_St),
+ 7 => (Opcode::FDIVP, OperandCodeX87::Est_St),
+ _ => { unreachable!("impossible r"); }
+ }
+ } else {
+ match r {
+ 0 => (Opcode::FIADD, OperandCodeX87::St_Ew),
+ 1 => (Opcode::FIMUL, OperandCodeX87::St_Ew),
+ 2 => (Opcode::FICOM, OperandCodeX87::St_Ew),
+ 3 => (Opcode::FICOMP, OperandCodeX87::St_Ew),
+ 4 => (Opcode::FISUB, OperandCodeX87::St_Ew),
+ 5 => (Opcode::FISUBR, OperandCodeX87::St_Ew),
+ 6 => (Opcode::FIDIV, OperandCodeX87::St_Ew),
+ 7 => (Opcode::FIDIVR, OperandCodeX87::St_Ew),
+ _ => { unreachable!("impossible r"); }
+ }
+ }
+ }
+ OperandCode::x87_df => {
+ if modrm >= 0xc0 {
+ match r {
+ 0 => (Opcode::FFREEP, OperandCodeX87::Est),
+ 1 => (Opcode::FXCH, OperandCodeX87::St_Est),
+ 2 => (Opcode::FSTP, OperandCodeX87::Est_St),
+ 3 => (Opcode::FSTP, OperandCodeX87::Est_St),
+ 4 => {
+ if modrm == 0xe0 {
+ (Opcode::FNSTSW, OperandCodeX87::Ew)
+ } else {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ },
+ 5 => (Opcode::FUCOMIP, OperandCodeX87::St_Est),
+ 6 => (Opcode::FCOMIP, OperandCodeX87::St_Est),
+ 7 => {
+ return Err(DecodeError::InvalidOpcode);
+ },
+ _ => { unreachable!("impossible r"); }
+ }
+ } else {
+ match r {
+ 0 => (Opcode::FILD, OperandCodeX87::St_Mw),
+ 1 => (Opcode::FISTTP, OperandCodeX87::Mw_St),
+ 2 => (Opcode::FIST, OperandCodeX87::Mw_St),
+ 3 => (Opcode::FISTP, OperandCodeX87::Mw_St),
+ 4 => (Opcode::FBLD, OperandCodeX87::St_Mm),
+ 5 => (Opcode::FILD, OperandCodeX87::St_Mq),
+ 6 => (Opcode::FBSTP, OperandCodeX87::Mm_St),
+ 7 => (Opcode::FISTP, OperandCodeX87::Mq_St),
+ _ => { unreachable!("impossible r"); }
+ }
+ }
+ }
+ other => {
+ panic!("invalid x87 operand dispatch, operand code is {:?}", other);
+ }
+ };
+ instruction.opcode = opcode;
+ if instruction.opcode == Opcode::Invalid {
+ return Err(DecodeError::InvalidOpcode);
+ }
+
+ match x87_operands {
+ OperandCodeX87::Est => {
+ instruction.operands[0] = read_E_st(words, instruction, modrm)?;
+ instruction.operand_count = 1;
+ }
+ OperandCodeX87::St_Est => {
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.regs[0] = RegSpec::st(0);
+ instruction.operands[1] = read_E_st(words, instruction, modrm)?;
+ instruction.operand_count = 2;
+ }
+ OperandCodeX87::St_Edst => {
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.regs[0] = RegSpec::st(0);
+ instruction.operands[1] = read_E_st(words, instruction, modrm)?;
+ if instruction.operands[1] != OperandSpec::RegMMM {
+ instruction.mem_size = 4;
+ }
+ instruction.operand_count = 2;
+ }
+ OperandCodeX87::St_Eqst => {
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.regs[0] = RegSpec::st(0);
+ instruction.operands[1] = read_E_st(words, instruction, modrm)?;
+ if instruction.operands[1] != OperandSpec::RegMMM {
+ instruction.mem_size = 8;
+ }
+ instruction.operand_count = 2;
+ }
+ OperandCodeX87::St_Ew => {
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.regs[0] = RegSpec::st(0);
+ instruction.operands[1] = read_E(words, instruction, modrm, 2)?;
+ if instruction.operands[1] != OperandSpec::RegMMM {
+ instruction.mem_size = 2;
+ }
+ instruction.operand_count = 2;
+ }
+ OperandCodeX87::St_Mm => {
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.regs[0] = RegSpec::st(0);
+ instruction.operands[1] = read_E(words, instruction, modrm, 4)?;
+ if instruction.operands[1] == OperandSpec::RegMMM {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.mem_size = 10;
+ instruction.operand_count = 2;
+ }
+ OperandCodeX87::St_Mq => {
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.regs[0] = RegSpec::st(0);
+ instruction.operands[1] = read_E(words, instruction, modrm, 4)?;
+ if instruction.operands[1] == OperandSpec::RegMMM {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.mem_size = 8;
+ instruction.operand_count = 2;
+ }
+ OperandCodeX87::St_Md => {
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.regs[0] = RegSpec::st(0);
+ instruction.operands[1] = read_E(words, instruction, modrm, 4)?;
+ if instruction.operands[1] == OperandSpec::RegMMM {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.mem_size = 4;
+ instruction.operand_count = 2;
+ }
+ OperandCodeX87::St_Mw => {
+ instruction.operands[0] = OperandSpec::RegRRR;
+ instruction.regs[0] = RegSpec::st(0);
+ instruction.operands[1] = read_E(words, instruction, modrm, 4)?;
+ if instruction.operands[1] == OperandSpec::RegMMM {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.mem_size = 2;
+ instruction.operand_count = 2;
+ }
+ OperandCodeX87::Ew => {
+ instruction.operands[0] = read_E(words, instruction, modrm, 2)?;
+ instruction.operand_count = 1;
+ if instruction.operands[0] != OperandSpec::RegMMM {
+ instruction.mem_size = 2;
+ }
+ }
+ OperandCodeX87::Est_St => {
+ instruction.operands[0] = read_E_st(words, instruction, modrm)?;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.regs[0] = RegSpec::st(0);
+ instruction.operand_count = 2;
+ }
+ OperandCodeX87::Edst_St => {
+ instruction.operands[0] = read_E_st(words, instruction, modrm)?;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.regs[0] = RegSpec::st(0);
+ instruction.operand_count = 2;
+ if instruction.operands[0] != OperandSpec::RegMMM {
+ instruction.mem_size = 4;
+ }
+ }
+ OperandCodeX87::Eqst_St => {
+ instruction.operands[0] = read_E_st(words, instruction, modrm)?;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.regs[0] = RegSpec::st(0);
+ instruction.operand_count = 2;
+ if instruction.operands[0] != OperandSpec::RegMMM {
+ instruction.mem_size = 8;
+ }
+ }
+ OperandCodeX87::Ed_St => {
+ instruction.operands[0] = read_E_st(words, instruction, modrm)?;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.regs[0] = RegSpec::st(0);
+ if instruction.operands[0] != OperandSpec::RegMMM {
+ instruction.mem_size = 4;
+ }
+ instruction.operand_count = 2;
+ }
+ OperandCodeX87::Mm_St => {
+ instruction.operands[0] = read_E(words, instruction, modrm, 4)?;
+ if instruction.operands[0] == OperandSpec::RegMMM {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.mem_size = 10;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.regs[0] = RegSpec::st(0);
+ instruction.operand_count = 2;
+ }
+ OperandCodeX87::Mq_St => {
+ instruction.operands[0] = read_E(words, instruction, modrm, 4)?;
+ if instruction.operands[0] == OperandSpec::RegMMM {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.mem_size = 8;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.regs[0] = RegSpec::st(0);
+ instruction.operand_count = 2;
+ }
+ OperandCodeX87::Md_St => {
+ instruction.operands[0] = read_E(words, instruction, modrm, 4)?;
+ if instruction.operands[0] == OperandSpec::RegMMM {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.mem_size = 4;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.regs[0] = RegSpec::st(0);
+ instruction.operand_count = 2;
+ }
+ OperandCodeX87::Mw_St => {
+ instruction.operands[0] = read_E(words, instruction, modrm, 4)?;
+ if instruction.operands[0] == OperandSpec::RegMMM {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.mem_size = 2;
+ instruction.operands[1] = OperandSpec::RegRRR;
+ instruction.regs[0] = RegSpec::st(0);
+ instruction.operand_count = 2;
+ }
+ OperandCodeX87::Ex87S => {
+ instruction.operands[0] = read_E(words, instruction, modrm, 4)?;
+ instruction.operand_count = 1;
+ if instruction.operands[0] == OperandSpec::RegMMM {
+ return Err(DecodeError::InvalidOperand);
+ }
+ instruction.mem_size = 63;
+ }
+ OperandCodeX87::Nothing => {
+ instruction.operand_count = 0;
+ },
+ }
+
+ Ok(())
+}
+
+#[inline]
+fn read_num<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpeax_arch::Arch>::Word>>(bytes: &mut T, width: u8) -> Result<u32, DecodeError> {
+ match width {
+ 1 => { bytes.next().ok().ok_or(DecodeError::ExhaustedInput).map(|x| x as u32) }
+ 2 => {
+ let mut buf = [0u8; 2];
+ bytes.next_n(&mut buf).ok().ok_or(DecodeError::ExhaustedInput)?;
+ Ok(u16::from_le_bytes(buf) as u32)
+ }
+ 4 => {
+ let mut buf = [0u8; 4];
+ bytes.next_n(&mut buf).ok().ok_or(DecodeError::ExhaustedInput)?;
+ Ok(u32::from_le_bytes(buf) as u32)
+ }
+ _ => {
+ unsafe { unreachable_unchecked(); }
+ }
+ }
+}
+
+#[inline]
+fn read_imm_signed<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpeax_arch::Arch>::Word>>(bytes: &mut T, num_width: u8) -> Result<i32, DecodeError> {
+ if num_width == 1 {
+ Ok(read_num(bytes, 1)? as i8 as i32)
+ } else if num_width == 2 {
+ Ok(read_num(bytes, 2)? as i16 as i32)
+ } else {
+ Ok(read_num(bytes, 4)? as i32)
+ }
+}
+
+#[inline]
+fn read_imm_unsigned<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpeax_arch::Arch>::Word>>(bytes: &mut T, width: u8) -> Result<u32, DecodeError> {
+ read_num(bytes, width)
+}
+
+#[inline]
+fn read_modrm<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpeax_arch::Arch>::Word>>(words: &mut T) -> Result<u8, DecodeError> {
+ words.next().ok().ok_or(DecodeError::ExhaustedInput)
+}
generated by cgit v1.1 at 2024-11-01 02:20:46 +0000