summaryrefslogtreecommitdiff
path: root/src/lib.rs
diff options
context:
space:
mode:
authoriximeow <me@iximeow.net>2020-10-11 00:40:07 -0700
committeriximeow <me@iximeow.net>2020-10-11 00:41:30 -0700
commit94935b77da2665200c82b0f83625a504fa6a6fd9 (patch)
tree260e1e20fe6ac0da5f2e4882af65fe0cb3e7ef7a /src/lib.rs
parentbd7cae741ca961ef6d5959bbf060205d9c514af0 (diff)
more pseudo-op cleanup, track predication, record float sf field, more tests
also make immediate representation more consistent
Diffstat (limited to 'src/lib.rs')
-rw-r--r--src/lib.rs788
1 files changed, 583 insertions, 205 deletions
diff --git a/src/lib.rs b/src/lib.rs
index 491b3d1..d03c49b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -482,22 +482,77 @@ pub enum Opcode {
Fcmp_unord_unc,
Fclass_m_unc,
Fclass_m,
- Fma_s_sf,
- Fma_sf,
- Fpma_sf,
- Fma_d_sf,
- Fms_s_sf,
- Fms_sf,
- Fpms_sf,
- Fms_d_sf,
- Fnma_s_sf,
- Fnma_sf,
- Fpnma_sf,
- Fnma_d_sf,
+ Fnorm,
+ Fnorm_d,
+ Fnorm_s,
+ Fmpy,
+ Fmpy_d,
+ Fmpy_s,
+ Fma_s,
+ Fma,
+ Fpma,
+ Fma_d,
+ Fms_s,
+ Fms,
+ Fpms,
+ Fms_d,
+ Fnma_s,
+ Fnma,
+ Fpnma,
+ Fnma_d,
Xma_l,
Xma_hu,
Xma_h,
Fselect,
+
+ Cmp4_eq,
+ Cmp4_eq_and,
+ Cmp4_eq_or,
+ Cmp4_eq_or_andcm,
+ Cmp4_eq_unc,
+ Cmp4_ge_and,
+ Cmp4_ge_or,
+ Cmp4_ge_or_andcm,
+ Cmp4_gt_and,
+ Cmp4_gt_or,
+ Cmp4_gt_or_andcm,
+ Cmp4_le_and,
+ Cmp4_le_or,
+ Cmp4_le_or_andcm,
+ Cmp4_lt,
+ Cmp4_lt_and,
+ Cmp4_lt_or,
+ Cmp4_lt_or_andcm,
+ Cmp4_lt_unc,
+ Cmp4_ltu,
+ Cmp4_ltu_unc,
+ Cmp4_ne_and,
+ Cmp4_ne_or,
+ Cmp4_ne_or_andcm,
+ Cmp_eq,
+ Cmp_eq_and,
+ Cmp_eq_or,
+ Cmp_eq_or_andcm,
+ Cmp_eq_unc,
+ Cmp_ge_and,
+ Cmp_ge_or,
+ Cmp_ge_or_andcm,
+ Cmp_gt_and,
+ Cmp_gt_or,
+ Cmp_gt_or_andcm,
+ Cmp_le_and,
+ Cmp_le_or,
+ Cmp_le_or_andcm,
+ Cmp_lt,
+ Cmp_lt_and,
+ Cmp_lt_or,
+ Cmp_lt_or_andcm,
+ Cmp_lt_unc,
+ Cmp_ltu,
+ Cmp_ltu_unc,
+ Cmp_ne_and,
+ Cmp_ne_or,
+ Cmp_ne_or_andcm,
}
impl fmt::Display for Opcode {
@@ -960,23 +1015,77 @@ impl fmt::Display for Opcode {
Opcode::Fcmp_unord_unc => { write!(f, "fcmp.unord.unc") }
Opcode::Fclass_m_unc => { write!(f, "fclass.m.unc") }
Opcode::Fclass_m => { write!(f, "fclass.m") }
- Opcode::Fma_s_sf => { write!(f, "fma.s.sf") }
- Opcode::Fma_sf => { write!(f, "fma.sf") }
- Opcode::Fpma_sf => { write!(f, "fpma.sf") }
- Opcode::Fma_d_sf => { write!(f, "fma.d.sf") }
- Opcode::Fms_s_sf => { write!(f, "fms.s.sf") }
- Opcode::Fms_sf => { write!(f, "fms.sf") }
- Opcode::Fpms_sf => { write!(f, "fpms.sf") }
- Opcode::Fms_d_sf => { write!(f, "fms.d.sf") }
- Opcode::Fnma_s_sf => { write!(f, "fnma.s.sf") }
- Opcode::Fnma_sf => { write!(f, "fnma.sf") }
- Opcode::Fpnma_sf => { write!(f, "fpnma.sf") }
- Opcode::Fnma_d_sf => { write!(f, "fnma.d.sf") }
+ Opcode::Fma_s => { write!(f, "fma.s") }
+ Opcode::Fnorm => { write!(f, "fnorm") }
+ Opcode::Fnorm_d => { write!(f, "fnorm.d") }
+ Opcode::Fnorm_s => { write!(f, "fnorm.s") }
+ Opcode::Fmpy => { write!(f, "fmpy") }
+ Opcode::Fmpy_d => { write!(f, "fmpy.d") }
+ Opcode::Fmpy_s => { write!(f, "fmpy.s") }
+ Opcode::Fma => { write!(f, "fma") }
+ Opcode::Fpma => { write!(f, "fpma") }
+ Opcode::Fma_d => { write!(f, "fma.d") }
+ Opcode::Fms_s => { write!(f, "fms.s") }
+ Opcode::Fms => { write!(f, "fms") }
+ Opcode::Fpms => { write!(f, "fpms") }
+ Opcode::Fms_d => { write!(f, "fms.d") }
+ Opcode::Fnma_s => { write!(f, "fnma.s") }
+ Opcode::Fnma => { write!(f, "fnma") }
+ Opcode::Fpnma => { write!(f, "fpnma") }
+ Opcode::Fnma_d => { write!(f, "fnma.d") }
Opcode::Xma_l => { write!(f, "xma.l") }
Opcode::Xma_hu => { write!(f, "xma.hu") }
Opcode::Xma_h => { write!(f, "xma.h") }
Opcode::Fselect => { write!(f, "fselect") }
+ Opcode::Cmp4_eq => { write!(f, "cmp4.eq") },
+ Opcode::Cmp4_eq_and => { write!(f, "cmp4.eq.and") },
+ Opcode::Cmp4_eq_or => { write!(f, "cmp4.eq.or") },
+ Opcode::Cmp4_eq_or_andcm => { write!(f, "cmp4.eq.or.andcm") },
+ Opcode::Cmp4_eq_unc => { write!(f, "cmp4.eq.unc") },
+ Opcode::Cmp4_ge_and => { write!(f, "cmp4.ge.and") },
+ Opcode::Cmp4_ge_or => { write!(f, "cmp4.ge.or") },
+ Opcode::Cmp4_ge_or_andcm => { write!(f, "cmp4.ge.or.andcm") },
+ Opcode::Cmp4_gt_and => { write!(f, "cmp4.gt.and") },
+ Opcode::Cmp4_gt_or => { write!(f, "cmp4.gt.or") },
+ Opcode::Cmp4_gt_or_andcm => { write!(f, "cmp4.gt.or.andcm") },
+ Opcode::Cmp4_le_and => { write!(f, "cmp4.le.and") },
+ Opcode::Cmp4_le_or => { write!(f, "cmp4.le.or") },
+ Opcode::Cmp4_le_or_andcm => { write!(f, "cmp4.le.or.andcm") },
+ Opcode::Cmp4_lt => { write!(f, "cmp4.lt") },
+ Opcode::Cmp4_lt_and => { write!(f, "cmp4.lt.and") },
+ Opcode::Cmp4_lt_or => { write!(f, "cmp4.lt.or") },
+ Opcode::Cmp4_lt_or_andcm => { write!(f, "cmp4.lt.or.andcm") },
+ Opcode::Cmp4_lt_unc => { write!(f, "cmp4.lt.unc") },
+ Opcode::Cmp4_ltu => { write!(f, "cmp4.ltu") },
+ Opcode::Cmp4_ltu_unc => { write!(f, "cmp4.ltu.unc") },
+ Opcode::Cmp4_ne_and => { write!(f, "cmp4.ne.and") },
+ Opcode::Cmp4_ne_or => { write!(f, "cmp4.ne.or") },
+ Opcode::Cmp4_ne_or_andcm => { write!(f, "cmp4.ne.or.andcm") },
+ Opcode::Cmp_eq => { write!(f, "cmp.eq") },
+ Opcode::Cmp_eq_and => { write!(f, "cmp.eq.and") },
+ Opcode::Cmp_eq_or => { write!(f, "cmp.eq.or") },
+ Opcode::Cmp_eq_or_andcm => { write!(f, "cmp.eq.or.andcm") },
+ Opcode::Cmp_eq_unc => { write!(f, "cmp.eq.unc") },
+ Opcode::Cmp_ge_and => { write!(f, "cmp.ge.and") },
+ Opcode::Cmp_ge_or => { write!(f, "cmp.ge.or") },
+ Opcode::Cmp_ge_or_andcm => { write!(f, "cmp.ge.or.andcm") },
+ Opcode::Cmp_gt_and => { write!(f, "cmp.gt.and") },
+ Opcode::Cmp_gt_or => { write!(f, "cmp.gt.or") },
+ Opcode::Cmp_gt_or_andcm => { write!(f, "cmp.gt.or.andcm") },
+ Opcode::Cmp_le_and => { write!(f, "cmp.le.and") },
+ Opcode::Cmp_le_or => { write!(f, "cmp.le.or") },
+ Opcode::Cmp_le_or_andcm => { write!(f, "cmp.le.or.andcm") },
+ Opcode::Cmp_lt => { write!(f, "cmp.lt") },
+ Opcode::Cmp_lt_and => { write!(f, "cmp.lt.and") },
+ Opcode::Cmp_lt_or => { write!(f, "cmp.lt.or") },
+ Opcode::Cmp_lt_or_andcm => { write!(f, "cmp.lt.or.andcm") },
+ Opcode::Cmp_lt_unc => { write!(f, "cmp.lt.unc") },
+ Opcode::Cmp_ltu => { write!(f, "cmp.ltu") },
+ Opcode::Cmp_ltu_unc => { write!(f, "cmp.ltu.unc") },
+ Opcode::Cmp_ne_and => { write!(f, "cmp.ne.and") },
+ Opcode::Cmp_ne_or => { write!(f, "cmp.ne.or") },
+ Opcode::Cmp_ne_or_andcm => { write!(f, "cmp.ne.or.andcm") },
}
}
}
@@ -984,26 +1093,62 @@ impl fmt::Display for Opcode {
#[derive(Default, Debug, PartialEq, Eq)]
pub struct Instruction {
opcode: Opcode,
- // specify which operand, if any, is the last written operand in an instruction
+ sf: Option<u8>, // for float instructions, `sf` may indicate which FPSR status field to use.
+ predicate: u8,
+ // specify which operand, if any, is the last written operand in an instruction.
dest_boundary: Option<u8>,
operands: [Operand; 5],
prefetch_hint: Option<PrefetchHint>,
}
impl fmt::Display for Instruction {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- if let Opcode::Addl = self.opcode {
+ if self.predicate != 0 {
+ write!(f, "(p{:02}) ", self.predicate)?;
+ }
+ if let Opcode::Alloc = self.opcode {
+ return write!(f, "alloc {}={},{},{},{}",
+ self.operands[0],
+ self.operands[1],
+ self.operands[2].as_unsigned_imm(),
+ self.operands[3].as_unsigned_imm(),
+ self.operands[4].as_unsigned_imm(),
+ );
+ } else if let Opcode::Addl = self.opcode {
if self.operands[1] == Operand::GPRegister(GPRegister(0)) {
return write!(f, "mov {}={}",
self.operands[0],
self.operands[2]
);
}
- }
- if let Opcode::Br_cond = self.opcode {
- return write!(f, "br{}{}{} {}",
- [".few", ".many"][self.operands[1].as_unsigned_imm() as usize],
+ } else if let Opcode::Adds = self.opcode {
+ if self.operands[1] == Operand::ImmI64(0) {
+ return write!(f, "mov {}={}",
+ self.operands[0],
+ self.operands[2]
+ );
+ }
+ } else if let Opcode::Br_cond = self.opcode {
+ return write!(f, "br{}{}{} {}{}",
["", ".spnt", ".dptk", ".dpnt"][self.operands[2].as_unsigned_imm() as usize],
+ [".few", ".many"][self.operands[1].as_unsigned_imm() as usize],
["", ".clr"][self.operands[3].as_unsigned_imm() as usize],
+ if let Operand::ImmI64(_) = self.operands[0] {
+ "$+"
+ } else {
+ ""
+ },
+ self.operands[0],
+ )
+ } else if let Opcode::Br_ret = self.opcode {
+ return write!(f, "br.ret{}{}{} {}{}",
+ [".sptk", ".spnt", ".dptk", ".dpnt"][self.operands[2].as_unsigned_imm() as usize],
+ [".few", ".many"][self.operands[1].as_unsigned_imm() as usize],
+ ["", ".clr"][self.operands[3].as_unsigned_imm() as usize],
+ if let Operand::ImmI64(_) = self.operands[0] {
+ "$+"
+ } else {
+ ""
+ },
self.operands[0],
)
} else if self.opcode == Opcode::Mov_mwh_ih {
@@ -1020,8 +1165,10 @@ impl fmt::Display for Instruction {
self.operands[0],
self.operands[1],
)
- } else {
- write!(f, "{}", self.opcode)?;
+ }
+ write!(f, "{}", self.opcode)?;
+ if let Some(sf) = self.sf {
+ write!(f, ".s{}", sf)?;
}
for (i, op) in self.operands.iter().enumerate() {
if op == &Operand::None {
@@ -1162,9 +1309,86 @@ impl fmt::Display for BranchRegister {
pub struct ApplicationRegister(pub u8); // 128 64-bit(?) registers
impl fmt::Display for ApplicationRegister {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- write!(f, "ar{}", self.0)
+ match self.0 {
+ 0 => write!(f, "ar.kr0"),
+ 1 => write!(f, "ar.kr1"),
+ 2 => write!(f, "ar.kr2"),
+ 3 => write!(f, "ar.kr3"),
+ 4 => write!(f, "ar.kr4"),
+ 5 => write!(f, "ar.kr5"),
+ 6 => write!(f, "ar.kr6"),
+ 7 => write!(f, "ar.kr7"),
+ 16 => write!(f, "ar.rsc"),
+ 17 => write!(f, "ar.bsp"),
+ 18 => write!(f, "ar.bspstore"),
+ 19 => write!(f, "ar.rnat"),
+ 21 => write!(f, "ar.fcr"),
+ 24 => write!(f, "ar.eflag"),
+ 25 => write!(f, "ar.csd"),
+ 26 => write!(f, "ar.ssd"),
+ 27 => write!(f, "ar.cflg"),
+ 28 => write!(f, "ar.fsr"),
+ 29 => write!(f, "ar.fir"),
+ 30 => write!(f, "ar.fdr"),
+ 32 => write!(f, "ar.ccv"),
+ 36 => write!(f, "ar.unat"),
+ 40 => write!(f, "ar.fpsr"),
+ 44 => write!(f, "ar.itc"),
+ 45 => write!(f, "ar.ruc"),
+ 64 => write!(f, "ar.pfs"),
+ 65 => write!(f, "ar.lc"),
+ 66 => write!(f, "ar.ec"),
+ other => write!(f, "ar{}", other)
+ }
}
}
+
+/// constants in this module are derived from the table `3.1.8 Application Registers`.
+impl ApplicationRegister {
+ /// `3.1.8.1 Kernel Registers (KR 0-7 - AR 0-7)`
+ pub const KR0: ApplicationRegister = ApplicationRegister(0);
+ /// `3.1.8.1 Kernel Registers (KR 0-7 - AR 0-7)`
+ pub const KR1: ApplicationRegister = ApplicationRegister(1);
+ /// `3.1.8.1 Kernel Registers (KR 0-7 - AR 0-7)`
+ pub const KR2: ApplicationRegister = ApplicationRegister(2);
+ /// `3.1.8.1 Kernel Registers (KR 0-7 - AR 0-7)`
+ pub const KR3: ApplicationRegister = ApplicationRegister(3);
+ /// `3.1.8.1 Kernel Registers (KR 0-7 - AR 0-7)`
+ pub const KR4: ApplicationRegister = ApplicationRegister(4);
+ /// `3.1.8.1 Kernel Registers (KR 0-7 - AR 0-7)`
+ pub const KR5: ApplicationRegister = ApplicationRegister(5);
+ /// `3.1.8.1 Kernel Registers (KR 0-7 - AR 0-7)`
+ pub const KR6: ApplicationRegister = ApplicationRegister(6);
+ /// `3.1.8.1 Kernel Registers (KR 0-7 - AR 0-7)`
+ pub const KR7: ApplicationRegister = ApplicationRegister(7);
+ /// `3.1.8.2 Register Stack Configuration Register (RSC - AR 16)`
+ pub const RSC: ApplicationRegister = ApplicationRegister(16);
+ /// `3.1.8.3 RSE Backing Store Pointer (BSP - AR 17)`
+ pub const BSP: ApplicationRegister = ApplicationRegister(17);
+ /// `3.1.8.4 RSE Backing Store Pointer for Memory Stores (BSPSTORE - AR 18)`
+ pub const BSPSTORE: ApplicationRegister = ApplicationRegister(18);
+ /// `3.1.8.5 RSE NaT Collection Register (RNAT - AR 19)`
+ pub const RNAT: ApplicationRegister = ApplicationRegister(19);
+ /// `3.1.8.6 Compare and Store Data Register (CSD - AR 25)`
+ pub const CSD: ApplicationRegister = ApplicationRegister(25);
+ /// `3.1.8.7 Compare and Exchange Value Register (CCV - AR 32)`
+ pub const CCV: ApplicationRegister = ApplicationRegister(32);
+ /// `3.1.8.8 User NaT Collection Register (UNAT - AR 36)`
+ pub const UNAT: ApplicationRegister = ApplicationRegister(36);
+ /// `3.1.8.9 Floating-point Status Register (FPSR - AR 40)`
+ pub const FPSR: ApplicationRegister = ApplicationRegister(40);
+ /// `3.1.8.10 Interval Time Counter (ITC - AR 44)`
+ pub const ITC: ApplicationRegister = ApplicationRegister(44);
+ /// `3.1.8.11 Resource Utilization Counter (RUC - AR 45)`
+ pub const RUC: ApplicationRegister = ApplicationRegister(45);
+ /// `3.1.8.12 Previous Function State (PFS - AR 64)`
+ pub const PFS: ApplicationRegister = ApplicationRegister(64);
+ /// `3.1.8.13 Loop Count (LC - AR 65)`
+ pub const LC: ApplicationRegister = ApplicationRegister(65);
+ /// `3.1.8.14 Epilog Count (EC - AR 66)`
+ pub const EC: ApplicationRegister = ApplicationRegister(66);
+}
+
#[derive(Debug, Copy, Clone, Eq, PartialEq)]
pub enum Operand {
None,
@@ -1207,8 +1431,12 @@ impl fmt::Display for Operand {
Operand::None => { unreachable!() },
Operand::GPRegister(reg) => { write!(f, "{}", reg) },
Operand::Memory(reg) => { write!(f, "[{}]", reg) },
- Operand::ImmU64(imm) => { write!(f, "{}", imm) },
- Operand::ImmI64(imm) => { write!(f, "{}", imm) },
+ Operand::ImmU64(imm) => { write!(f, "{:#x}", imm) },
+ Operand::ImmI64(imm) => { if imm < &0 {
+ write!(f, "-{:#x}", -imm)
+ } else {
+ write!(f, "{:#x}", imm)
+ } },
Operand::FloatRegister(reg) => { write!(f, "{}", reg) },
Operand::PredicateRegister(reg) => { write!(f, "{}", reg) },
Operand::ApplicationRegister(reg) => { write!(f, "{}", reg) },
@@ -1317,26 +1545,22 @@ impl Decoder<InstructionBundle> for InstDecoder {
// let instruction_bits = instruction_bytes.view_bits::<Lsb0>();
let bundle_tag = instruction_bytes[0..5].load::<u8>();
inst.bundle_tag = bundle_tag;
- eprintln!("{:?}", instruction_bytes);
let instruction_words = [
&instruction_bytes[5..46],
&instruction_bytes[46..87],
&instruction_bytes[87..128],
];
- println!("bundle tag is now {:#05b}", bundle_tag);
let (instruction_types, stop_mask) = BUNDLE_TAGS[bundle_tag as usize].ok_or(DecodeError::BadBundle)?;
- eprintln!("bundle types: {:?}, stop_mask: {:#b}", instruction_types, stop_mask);
fn decode_l_instruction(word: &BitSlice<Lsb0, u8>, word2: &BitSlice<Lsb0, u8>) -> Instruction {
- eprintln!("as slice: {:?}", word);
let tag = word[37..41].load::<u8>();
- eprintln!("tag: {:#x}", tag);
let (opcode, operand_encoding) = get_l_opcode_and_encoding(tag, word);
- eprintln!("L({}) {:?}/{:?}", tag, opcode, operand_encoding);
let (dest_boundary, operands) = read_l_operands(operand_encoding, word, word2);
Instruction {
opcode,
+ sf: None,
+ predicate: word[0..6].load::<u8>(),
dest_boundary,
operands,
// TODO: figure out hints
@@ -1345,9 +1569,7 @@ impl Decoder<InstructionBundle> for InstDecoder {
}
fn decode_instruction(word: &BitSlice<Lsb0, u8>, ty: InstructionType) -> Instruction {
- eprintln!("as slice: {:?}", word);
let tag = word[37..41].load::<u8>();
- eprintln!("tag: {:#x}", tag);
let ty = if tag >= 8 && (ty == InstructionType::M || ty == InstructionType::I) {
InstructionType::A
@@ -1358,10 +1580,11 @@ impl Decoder<InstructionBundle> for InstDecoder {
match ty {
InstructionType::I => {
let (opcode, operand_encoding) = get_i_opcode_and_encoding(tag, word);
- eprintln!("I({}) {:?}/{:?}", tag, opcode, operand_encoding);
let (dest_boundary, operands) = read_i_operands(operand_encoding, word);
Instruction {
opcode,
+ sf: None,
+ predicate: word[0..6].load::<u8>(),
dest_boundary,
operands,
// TODO: figure out hints
@@ -1369,11 +1592,84 @@ impl Decoder<InstructionBundle> for InstDecoder {
}
},
InstructionType::F => {
- let (opcode, operand_encoding) = get_f_opcode_and_encoding(tag, word);
- eprintln!("F({}) {:?}/{:?}", tag, opcode, operand_encoding);
- let (dest_boundary, operands) = read_f_operands(operand_encoding, word);
+ let (mut opcode, operand_encoding) = get_f_opcode_and_encoding(tag, word);
+ // assume there will be an `sf`, then handle exceptions. this is constructed
+ // from reading over section 4.6 of the manual.
+ let mut sf = Some(word[34..36].load::<u8>());
+ match (tag, word[27..33].load::<u8>()) {
+ (0, 0x00) | // break.f
+ (0, 0x01) | // nop.f, hint.f
+ (0, 0x10) | // fmerge.s
+ (0, 0x11) | // fmerge.ns
+ (0, 0x12) | // fmerge.se
+ (0, 0x1c) | // fcvt.xf
+ (0, 0x28) | // fpack
+ (0, 0x2c) | // fand
+ (0, 0x2d) | // fandcm
+ (0, 0x2e) | // for
+ (0, 0x2f) | // fxor
+ (0, 0x34) | // fswap
+ (0, 0x35) | // fswap.nl
+ (0, 0x36) | // fswap.nr
+ (0, 0x39) | // fmix.lr
+ (0, 0x3a) | // fmix.r
+ (0, 0x3b) | // fmix.l
+ (0, 0x3c) | // fsxt.r
+ (0, 0x3d) | // fsxt.l
+
+ (1, 0x10) | // fpmerge.s
+ (1, 0x11) | // fpmerge.ns
+ (1, 0x12) | // fpmerge.se
+ // `4.6.3.2 Floating-point Class` does not use sf.
+ (5, _) => {
+ sf = None;
+ }
+ (0xe, _) => {
+ // by `4.6.2 Parallel Floating-point Select`, `fselect` does not use sf
+ // additionally relevant, `4.6.1.2 Fixed-point Multiply Add`
+ sf = None;
+ }
+ _ => {
+ // storing an `sf` is fine
+ }
+ }
+ let (dest_boundary, mut operands) = read_f_operands(operand_encoding, word);
+ // quoth `fma - Floating-point Multiply Add`, fma.* with `f2` set to register
+ // `f0` is actually `fmpy`
+ if operands[3] == Operand::FloatRegister(FloatRegister(0)) {
+ if opcode == Opcode::Fma {
+ if operands[2] == Operand::FloatRegister(FloatRegister(1)) {
+ opcode = Opcode::Fnorm;
+ operands[2] = Operand::None;
+ operands[3] = Operand::None;
+ } else {
+ opcode = Opcode::Fmpy;
+ operands[3] = Operand::None;
+ }
+ } else if opcode == Opcode::Fma_s {
+ if operands[2] == Operand::FloatRegister(FloatRegister(1)) {
+ opcode = Opcode::Fnorm_s;
+ operands[2] = Operand::None;
+ operands[3] = Operand::None;
+ } else {
+ opcode = Opcode::Fmpy_s;
+ operands[3] = Operand::None;
+ }
+ } else if opcode == Opcode::Fma_d {
+ if operands[2] == Operand::FloatRegister(FloatRegister(1)) {
+ opcode = Opcode::Fnorm_d;
+ operands[2] = Operand::None;
+ operands[3] = Operand::None;
+ } else {
+ opcode = Opcode::Fmpy_d;
+ operands[3] = Operand::None;
+ }
+ }
+ }
Instruction {
opcode,
+ sf,
+ predicate: word[0..6].load::<u8>(),
dest_boundary,
operands,
// TODO: figure out hints
@@ -1382,10 +1678,16 @@ impl Decoder<InstructionBundle> for InstDecoder {
},
InstructionType::B => {
let (opcode, operand_encoding) = get_b_opcode_and_encoding(tag, word);
- eprintln!("B({}) {:?}/{:?}", tag, opcode, operand_encoding);
+ let predicate = if operand_encoding == OperandEncodingB::B6 || operand_encoding == OperandEncodingB::B7 {
+ 0
+ } else {
+ word[0..6].load::<u8>()
+ };
let (dest_boundary, operands) = read_b_operands(operand_encoding, word);
Instruction {
opcode,
+ sf: None,
+ predicate,
dest_boundary,
operands,
// TODO: figure out hints
@@ -1397,10 +1699,11 @@ impl Decoder<InstructionBundle> for InstDecoder {
},
InstructionType::A => {
let (opcode, operand_encoding) = get_a_opcode_and_encoding(tag, word);
- eprintln!("A({}) {:?}/{:?}", tag, opcode, operand_encoding);
let (dest_boundary, operands) = read_a_operands(operand_encoding, word);
Instruction {
opcode,
+ sf: None,
+ predicate: word[0..6].load::<u8>(),
dest_boundary,
operands,
// TODO: figure out hints
@@ -1409,10 +1712,11 @@ impl Decoder<InstructionBundle> for InstDecoder {
}
InstructionType::M => {
let (opcode, operand_encoding) = get_m_opcode_and_encoding(tag, word);
- eprintln!("M({}) {:?}/{:?}", tag, opcode, operand_encoding);
let (dest_boundary, operands) = read_m_operands(operand_encoding, word);
Instruction {
opcode,
+ sf: None,
+ predicate: word[0..6].load::<u8>(),
dest_boundary,
operands,
// TODO: figure out hints
@@ -1426,12 +1730,10 @@ impl Decoder<InstructionBundle> for InstDecoder {
for ((i, word), ty) in instruction_words.iter().enumerate().zip(instruction_types.iter().cloned()) {
if ty == InstructionType::L {
let instruction = decode_l_instruction(word, &instruction_words[i + 1]);
- eprintln!("{:?}/{:#046b}: {:?}", ty, word, instruction);
inst.instructions[i] = instruction;
break;
} else {
let instruction = decode_instruction(word, ty);
- eprintln!("{:?}/{:#046b}: {:?}", ty, word, instruction);
inst.instructions[i] = instruction;
};
}
@@ -1476,7 +1778,7 @@ fn read_l_operands(encoding: OperandEncodingX, word: &BitSlice<Lsb0, u8>, word2:
let imm20a = word[6..26].load::<u64>();
let i = word[36];
let imm41 = word2[0..41].load::<u64>();
- let imm = imm41 << 21 + (i as u64) << 20 + imm20a;
+ let imm = (imm41 << 21) + ((i as u64) << 20) + imm20a;
// TODO: this is certainly assembled incorrectly
one_op(false, Operand::ImmU64(imm as u64))
}
@@ -1488,7 +1790,7 @@ fn read_l_operands(encoding: OperandEncodingX, word: &BitSlice<Lsb0, u8>, word2:
let i = word[36];
let imm41 = word2[0..41].load::<u64>();
// TODO: this is certainly assembled incorrectly
- let imm = imm41 << 21 + (i as u64) << 20 + imm7b + immdc + (ic as u64);
+ let imm = (imm41 << 21) + ((i as u64) << 20) + imm7b + immdc + (ic as u64);
two_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -1507,8 +1809,7 @@ fn read_l_operands(encoding: OperandEncodingX, word: &BitSlice<Lsb0, u8>, word2:
let i = word[36];
let imm39 = word2[2..41].load::<u64>();
// TODO: this is certainly assembled incorrectly
- let imm = imm39 << 21 + (i as u64) << 20 + imm20b;
- eprintln!("x3 operands, btype={}, imm={}, p={}, wh={}, d={}", btype, imm, p, wh, d);
+ let imm = (imm39 << 21) + ((i as u64) << 20) + imm20b;
one_op(false, Operand::ImmU64(imm as u64))
}
X4 => {
@@ -1520,8 +1821,7 @@ fn read_l_operands(encoding: OperandEncodingX, word: &BitSlice<Lsb0, u8>, word2:
let i = word[36];
let imm39 = word2[2..41].load::<u64>();
// TODO: this is certainly assembled incorrectly
- let imm = imm39 << 21 + (i as u64) << 20 + imm20b;
- eprintln!("x4 operands, b1={}, imm={}, p={}, wh={}, d={}", b1, imm, p, wh, d);
+ let imm = (imm39 << 21) + ((i as u64) << 20) + imm20b;
two_op(
Some(0),
Operand::BranchRegister(BranchRegister(b1)),
@@ -1533,8 +1833,7 @@ fn read_l_operands(encoding: OperandEncodingX, word: &BitSlice<Lsb0, u8>, word2:
let i = word[36];
let imm41 = word2[0..41].load::<u64>();
// TODO: this is certainly assembled incorrectly
- let imm = imm41 << 21 + (i as u64) << 20 + imm20;
- eprintln!("x5 operands, imm={}", imm);
+ let imm = (imm41 << 21) + ((i as u64) << 20) + imm20;
one_op(false, Operand::ImmU64(imm as u64))
}
}
@@ -1546,21 +1845,34 @@ fn read_b_operands(encoding: OperandEncodingB, word: &BitSlice<Lsb0, u8>) -> (Op
panic!("should not explicitly check OperandEncodingB::None");
}
B1 => {
- let imm = word[13..33].load::<u32>();
+ let imm20b = word[13..33].load::<u32>();
+ let s = word[36];
+ let imm = (((imm20b + ((s as u32) << 20)) as i32) << 11) >> 7;
let wh = word[33..35].load::<u8>();
let d = word[35];
let p = word[12];
- eprintln!("b1 operands, imm={}, p={}, wh={}, d={}", imm, p, wh, d);
- one_op(false, Operand::ImmU64(imm as u64))
+ four_op(
+ Option::None,
+ Operand::ImmI64(imm as i64),
+ Operand::ImmU64(p as u64),
+ Operand::ImmU64(wh as u64),
+ Operand::ImmU64(d as u64),
+ )
}
B2 => {
- // TODO: missing four bits?
- let imm = word[13..33].load::<u32>();
+ let imm20b = word[13..33].load::<u32>();
+ let s = word[36];
+ let imm = (((imm20b + ((s as u32) << 20)) as i32) << 11) >> 7;
let wh = word[33..35].load::<u8>();
let d = word[35];
let p = word[12];
- eprintln!("b2 operands, imm={}, p={}, wh={}, d={}", imm, p, wh, d);
- one_op(false, Operand::ImmU64(imm as u64))
+ four_op(
+ Option::None,
+ Operand::ImmI64(imm as i64),
+ Operand::ImmU64(p as u64),
+ Operand::ImmU64(wh as u64),
+ Operand::ImmU64(d as u64),
+ )
}
B3 => {
// TODO: missing four bits?
@@ -1569,7 +1881,6 @@ fn read_b_operands(encoding: OperandEncodingB, word: &BitSlice<Lsb0, u8>) -> (Op
let d = word[35];
let p = word[12];
let b1 = word[6..9].load::<u8>();
- eprintln!("b3 operands, b1={}, imm={}, p={}, wh={}, d={}", b1, imm, p, wh, d);
(
Option::None,
[
@@ -1586,7 +1897,6 @@ fn read_b_operands(encoding: OperandEncodingB, word: &BitSlice<Lsb0, u8>) -> (Op
let wh = word[33..35].load::<u8>();
let d = word[35];
let p = word[12];
- eprintln!("b4 operands, b2={}, p={}, wh={}, d={}", b2, p, wh, d);
four_op(
Option::None,
Operand::BranchRegister(BranchRegister(b2)),
@@ -1601,7 +1911,6 @@ fn read_b_operands(encoding: OperandEncodingB, word: &BitSlice<Lsb0, u8>) -> (Op
let d = word[35];
let p = word[12];
let b1 = word[6..9].load::<u8>();
- eprintln!("b5 operands, b1={}, b2={}, p={}, wh={}, d={}", b1, b2, p, wh, d);
(
Option::None,
[
@@ -1623,7 +1932,6 @@ fn read_b_operands(encoding: OperandEncodingB, word: &BitSlice<Lsb0, u8>) -> (Op
let tag = (t2e << 7) + timm7a;
let ih = word[33..35].load::<u8>();
let s = word[36] as u8;
- eprintln!("b6 operands, imm={}, tag={}, ih={}, wh={}", imm20b, tag, ih, s);
four_op(
Option::None,
Operand::ImmI64(imm20b as i64),
@@ -1640,7 +1948,6 @@ fn read_b_operands(encoding: OperandEncodingB, word: &BitSlice<Lsb0, u8>) -> (Op
let t2e = word[33..35].load::<u32>();
let tag = (t2e << 7) + timm7a;
let ih = word[35] as u8;
- eprintln!("b7 operands, b2={}, tag={}, ih={}, wh={}", b2, tag, ih, wh);
four_op(
Option::None,
Operand::BranchRegister(BranchRegister(b2)),
@@ -1650,13 +1957,11 @@ fn read_b_operands(encoding: OperandEncodingB, word: &BitSlice<Lsb0, u8>) -> (Op
)
}
B8 => {
- eprintln!("b8 operands");
one_op(false, Operand::None)
}
B9 => {
let imm20b = word[6..26].load::<u32>();
- let imm = (word[20] as u32) << 20 + imm20b;
- eprintln!("b9 operands, imm={}", imm);
+ let imm = ((word[20] as u32) << 20) + imm20b;
one_op(false, Operand::ImmU64(imm as u64))
}
}
@@ -1672,7 +1977,6 @@ fn read_f_operands(encoding: OperandEncodingF, word: &BitSlice<Lsb0, u8>) -> (Op
let f2 = word[13..20].load::<u8>();
let f3 = word[20..27].load::<u8>();
let f4 = word[27..34].load::<u8>();
- eprintln!("f1 operands, f1={}, f2={}, f3={}, f4={}", f1, f2, f3, f4);
four_op(
Some(0),
Operand::FloatRegister(FloatRegister(f1)),
@@ -1686,7 +1990,6 @@ fn read_f_operands(encoding: OperandEncodingF, word: &BitSlice<Lsb0, u8>) -> (Op
let f2 = word[13..20].load::<u8>();
let f3 = word[20..27].load::<u8>();
let f4 = word[27..34].load::<u8>();
- eprintln!("f2 operands, f1={}, f2={}, f3={}, f4={}", f1, f2, f3, f4);
four_op(
Some(0),
Operand::FloatRegister(FloatRegister(f1)),
@@ -1700,7 +2003,6 @@ fn read_f_operands(encoding: OperandEncodingF, word: &BitSlice<Lsb0, u8>) -> (Op
let f2 = word[13..20].load::<u8>();
let f3 = word[20..27].load::<u8>();
let f4 = word[27..34].load::<u8>();
- eprintln!("f3 operands, f1={}, f2={}, f3={}, f4={}", f1, f2, f3, f4);
four_op(
Some(0),
Operand::FloatRegister(FloatRegister(f1)),
@@ -1714,7 +2016,6 @@ fn read_f_operands(encoding: OperandEncodingF, word: &BitSlice<Lsb0, u8>) -> (Op
let f2 = word[13..20].load::<u8>();
let f3 = word[20..27].load::<u8>();
let p2 = word[27..33].load::<u8>();
- eprintln!("f4 operands, p1={}, f2={}, f3={}, p2={}", p1, f2, f3, p2);
four_op(
Some(1),
Operand::PredicateRegister(PredicateRegister(p1)),
@@ -1730,7 +2031,6 @@ fn read_f_operands(encoding: OperandEncodingF, word: &BitSlice<Lsb0, u8>) -> (Op
let fc2 = word[33..35].load::<u32>();
let fclass = fc2 << 7 + fclass7c;
let p2 = word[27..33].load::<u8>();
- eprintln!("f5 operands, p1={}, f2={}, fclass={}, p2={}", p1, f2, fclass, p2);
four_op(
Some(1),
Operand::PredicateRegister(PredicateRegister(p1)),
@@ -1744,7 +2044,6 @@ fn read_f_operands(encoding: OperandEncodingF, word: &BitSlice<Lsb0, u8>) -> (Op
let f2 = word[13..20].load::<u8>();
let f3 = word[20..27].load::<u8>();
let p2 = word[27..33].load::<u8>();
- eprintln!("f6 operands, f1={}, f2={}, f3={}, p2={}", f1, f2, f3, p2);
four_op(
Some(1),
Operand::FloatRegister(FloatRegister(f1)),
@@ -1758,7 +2057,6 @@ fn read_f_operands(encoding: OperandEncodingF, word: &BitSlice<Lsb0, u8>) -> (Op
let _ = word[13..20].load::<u8>();
let f3 = word[20..27].load::<u8>();
let p2 = word[27..33].load::<u8>();
- eprintln!("f7 operands, f1={}, f3={}, p2={}", f1, f3, p2);
three_op(
Some(1),
Operand::FloatRegister(FloatRegister(f1)),
@@ -1771,7 +2069,6 @@ fn read_f_operands(encoding: OperandEncodingF, word: &BitSlice<Lsb0, u8>) -> (Op
let f2 = word[13..20].load::<u8>();
let f3 = word[20..27].load::<u8>();
let _ = word[27..33].load::<u8>();
- eprintln!("f8 operands, f1={}, f2={}, f3={}", f1, f2, f3);
three_op(
Some(0),
Operand::FloatRegister(FloatRegister(f1)),
@@ -1784,7 +2081,6 @@ fn read_f_operands(encoding: OperandEncodingF, word: &BitSlice<Lsb0, u8>) -> (Op
let f2 = word[13..20].load::<u8>();
let f3 = word[20..27].load::<u8>();
let _ = word[27..33].load::<u8>();
- eprintln!("f9 operands, f1={}, f2={}, f3={}", f1, f2, f3);
three_op(
Some(0),
Operand::FloatRegister(FloatRegister(f1)),
@@ -1797,7 +2093,6 @@ fn read_f_operands(encoding: OperandEncodingF, word: &BitSlice<Lsb0, u8>) -> (Op
let f2 = word[13..20].load::<u8>();
let _ = word[20..27].load::<u8>();
let _ = word[27..33].load::<u8>();
- eprintln!("f10 operands, f1={}, f2={}", f1, f2);
two_op(
Some(0),
Operand::FloatRegister(FloatRegister(f1)),
@@ -1809,7 +2104,6 @@ fn read_f_operands(encoding: OperandEncodingF, word: &BitSlice<Lsb0, u8>) -> (Op
let f2 = word[13..20].load::<u8>();
let _ = word[20..27].load::<u8>();
let _ = word[27..33].load::<u8>();
- eprintln!("f11 operands, f1={}, f2={}", f1, f2);
two_op(
Some(0),
Operand::FloatRegister(FloatRegister(f1)),
@@ -1821,7 +2115,6 @@ fn read_f_operands(encoding: OperandEncodingF, word: &BitSlice<Lsb0, u8>) -> (Op
let amask = word[13..20].load::<u8>();
let omask = word[20..27].load::<u8>();
let _ = word[27..33].load::<u8>();
- eprintln!("f12 operands, amask={}, omask={}", amask, omask);
two_op(
Option::None,
Operand::ImmU64(amask as u64),
@@ -1829,14 +2122,12 @@ fn read_f_operands(encoding: OperandEncodingF, word: &BitSlice<Lsb0, u8>) -> (Op
)
}
F13 => {
- eprintln!("f13 operands");
one_op(false, Operand::None)
}
F14 => {
let imm20a = word[6..26].load::<u32>();
// TODO: missing 4 bits?
- let imm = (word[36] as u32) << 20 + imm20a;
- eprintln!("f14 operands, imm={}", imm);
+ let imm = ((word[36] as u32) << 20) + imm20a;
one_op(
false,
Operand::ImmU64(imm as u64),
@@ -1844,8 +2135,7 @@ fn read_f_operands(encoding: OperandEncodingF, word: &BitSlice<Lsb0, u8>) -> (Op
}
F15 => {
let imm20a = word[6..26].load::<u32>();
- let imm = (word[36] as u32) << 20 + imm20a;
- eprintln!("f15 operands, imm={}", imm);
+ let imm = ((word[36] as u32) << 20) + imm20a;
one_op(
false,
Operand::ImmU64(imm as u64),
@@ -1853,8 +2143,7 @@ fn read_f_operands(encoding: OperandEncodingF, word: &BitSlice<Lsb0, u8>) -> (Op
}
F16 => {
let imm20a = word[6..26].load::<u32>();
- let imm = (word[36] as u32) << 20 + imm20a;
- eprintln!("f16 operands, imm={}", imm);
+ let imm = ((word[36] as u32) << 20) + imm20a;
one_op(
false,
Operand::ImmU64(imm as u64),
@@ -1873,7 +2162,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let r2 = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
let count = word[30..32].load::<u8>();
- eprintln!("i1 operands, r1={}, r2={}, r3={}, count={}", r1, r2, r3, count);
four_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -1886,7 +2174,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let r1 = word[6..13].load::<u8>();
let r2 = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
- eprintln!("i2 operands, r1={}, r2={}, r3={}", r1, r2, r3);
three_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -1898,7 +2185,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let r1 = word[6..13].load::<u8>();
let r2 = word[13..20].load::<u8>();
let mbt = word[20..24].load::<u8>();
- eprintln!("i3 operands, r1={}, r2={}, mbt={}", r1, r2, mbt);
three_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -1910,7 +2196,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let r1 = word[6..13].load::<u8>();
let r2 = word[13..20].load::<u8>();
let mht = word[20..28].load::<u8>();
- eprintln!("i4 operands, r1={}, r2={}, mht={}", r1, r2, mht);
three_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -1922,7 +2207,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let r1 = word[6..13].load::<u8>();
let r2 = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
- eprintln!("i5 operands, r1={}, r2={}, r3={}", r1, r2, r3);
three_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -1934,7 +2218,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let r1 = word[6..13].load::<u8>();
let count = word[14..19].load::<u8>();
let r3 = word[20..27].load::<u8>();
- eprintln!("i6 operands, r1={}, r3={}, count={}", r1, r3, count);
three_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -1946,7 +2229,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let r1 = word[6..13].load::<u8>();
let r2 = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
- eprintln!("i7 operands, r1={}, r2={}, r3={}", r1, r2, r3);
three_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -1958,7 +2240,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let r1 = word[6..13].load::<u8>();
let r2 = word[13..20].load::<u8>();
let count = word[20..25].load::<u8>();
- eprintln!("i8 operands, r1={}, r2={}, count={}", r1, r2, count);
three_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -1972,7 +2253,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
// TODO: error on this properly? is this a #ud-like?
assert_eq!(z, 0);
let r3 = word[20..27].load::<u8>();
- eprintln!("i9 operands, r1={}, r3={}", r1, r3);
two_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -1984,7 +2264,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let r2 = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
let count = word[27..33].load::<u8>();
- eprintln!("i10 operands, r1={}, r2={}, r3={}, count={}", r1, r2, r3, count);
four_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -1998,7 +2277,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let pos = word[14..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
let len = word[27..33].load::<u8>();
- eprintln!("i11 operands, r1={}, pos={}, r3={}, len={}", r1, pos, r3, len);
four_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -2012,7 +2290,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let r2 = word[13..20].load::<u8>();
let cpos = word[20..26].load::<u8>();
let len = word[27..33].load::<u8>();
- eprintln!("i12 operands, r1={}, r2={}, cpos={}, len={}", r1, r2, cpos, len);
four_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -2027,7 +2304,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let imm = ((word[36] as u8) << 7 + imm7b) as i8;
let cpos = word[20..26].load::<u8>();
let len = word[27..33].load::<u8>();
- eprintln!("i13 operands, r1={}, imm={}, cpos={}, len={}", r1, imm, cpos, len);
four_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -2042,7 +2318,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let r3 = word[20..27].load::<u8>();
let cpos = word[14..20].load::<u8>();
let len = word[27..33].load::<u8>();
- eprintln!("i14 operands, r1={}, imm={}, r3={}, cpos={}, len={}", r1, imm, r3, cpos, len);
(
Some(0),
[
@@ -2060,7 +2335,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let r3 = word[20..27].load::<u8>();
let len = word[27..31].load::<u8>();
let cpos = word[31..37].load::<u8>();
- eprintln!("i15 operands, r1={}, r2={}, r3={}, cpos={}, len={}", r1, r2, r3, cpos, len);
(
Some(0),
[
@@ -2077,7 +2351,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let pos = word[14..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
let p2 = word[27..33].load::<u8>();
- eprintln!("i16 operands, p1={}, p2={}, r3={}, pos={}", p1, p2, r3, pos);
four_op(
Some(1),
Operand::PredicateRegister(PredicateRegister(p1)),
@@ -2090,7 +2363,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let p1 = word[6..12].load::<u8>();
let r3 = word[20..27].load::<u8>();
let p2 = word[27..33].load::<u8>();
- eprintln!("i17 operands, p1={}, p2={}, r3={}", p1, p2, r3);
three_op(
Some(1),
Operand::PredicateRegister(PredicateRegister(p1)),
@@ -2100,8 +2372,7 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
}
I18 => {
let imm20 = word[6..26].load::<u32>();
- let imm = imm20 + (word[36] as u32) << 20;
- eprintln!("i18 operands, imm={}", imm);
+ let imm = imm20 + ((word[36] as u32) << 20);
one_op(
false,
Operand::ImmU64(imm as u64),
@@ -2109,8 +2380,7 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
}
I19 => {
let imm20 = word[6..26].load::<u32>();
- let imm = imm20 + (word[36] as u32) << 20;
- eprintln!("i19 operands, imm={}", imm);
+ let imm = imm20 + ((word[36] as u32) << 20);
one_op(
false,
Operand::ImmU64(imm as u64),
@@ -2120,7 +2390,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let p1 = word[6..12].load::<u8>();
let r3 = word[20..27].load::<u8>();
let p2 = word[27..33].load::<u8>();
- eprintln!("i20 operands, p1={}, p2={}, r3={}", p1, p2, r3);
three_op(
Option::None,
Operand::PredicateRegister(PredicateRegister(p1)),
@@ -2134,7 +2403,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let wh = word[20..22].load::<u8>();
let ih = word[23];
let tag = word[24..33].load::<u32>();
- eprintln!("i21 operands, b1={}, r2={}, tag={}, ih={}, wh={}", b1, r2, tag, ih, wh);
(
Some(0),
[
@@ -2149,7 +2417,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
I22 => {
let r1 = word[6..13].load::<u8>();
let b2 = word[13..16].load::<u8>();
- eprintln!("i22 operands, r1={}, b2={}", r1, b2);
two_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -2163,7 +2430,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let _s = word[36] as u32;
// TODO: this is .. missing two bits?
let mask = (mask8c << 7) + mask7a;
- eprintln!("i23 operands, r2={}, mask={}", r2, mask);
three_op(
Some(0),
Operand::PR,
@@ -2175,7 +2441,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let imm = word[6..33].load::<u8>();
let _s = word[36] as u32;
// TODO: this is missing ... 17 bits? sign extend?
- eprintln!("i24 operands, imm={}", imm);
two_op(
Some(0),
Operand::PR,
@@ -2185,7 +2450,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
I25 => {
let r1 = word[6..13].load::<u8>();
let x6 = word[27..33].load::<u8>();
- eprintln!("i25 operands, r1={}, x6={}", r1, x6);
let src = match x6 {
30 => Operand::IP,
33 => Operand::PR,
@@ -2203,7 +2467,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
I26 => {
let r2 = word[13..20].load::<u8>();
let ar3 = word[20..27].load::<u8>();
- eprintln!("i26 operands, ar3={}, r2={}", ar3, r2);
two_op(
Some(0),
Operand::ApplicationRegister(ApplicationRegister(ar3)),
@@ -2214,7 +2477,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
let imm7b = word[13..20].load::<u8>();
let imm = (((word[36] as u8) << 7) + imm7b) as i8;
let ar3 = word[20..27].load::<u8>();
- eprintln!("i27 operands, ar3={}, imm={}", ar3, imm);
two_op(
Some(0),
Operand::ApplicationRegister(ApplicationRegister(ar3)),
@@ -2224,7 +2486,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
I28 => {
let r1 = word[6..13].load::<u8>();
let ar3 = word[20..27].load::<u8>();
- eprintln!("i28 operands, ar3={}, r1={}", ar3, r1);
two_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -2234,7 +2495,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
I29 => {
let r1 = word[6..13].load::<u8>();
let r3 = word[20..27].load::<u8>();
- eprintln!("i29 operands, r3={}, r1={}", r3, r1);
two_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -2248,7 +2508,6 @@ fn read_i_operands(encoding: OperandEncodingI, word: &BitSlice<Lsb0, u8>) -> (Op
// TODO: what happens when this field isn't actually zero?
assert_eq!(z, 0);
let p2 = word[27..33].load::<u8>();
- eprintln!("i30 operands, p1={}, p2={}, imm={}", p1, p2, imm);
three_op(
Some(1),
Operand::PredicateRegister(PredicateRegister(p1)),
@@ -2266,7 +2525,6 @@ fn read_m_operands(encoding: OperandEncodingM, word: &BitSlice<Lsb0, u8>) -> (Op
let _ = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
let hint = word[28..30].load::<u8>();
- eprintln!("m1 operands, r1={}, r3={}, hint={}", r1, r3, hint);
three_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -2279,7 +2537,6 @@ fn read_m_operands(encoding: OperandEncodingM, word: &BitSlice<Lsb0, u8>) -> (Op
let r2 = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
let hint = word[28..30].load::<u8>();
- eprintln!("m2 operands, r1={}, r2={}, r3={}, hint={}", r1, r2, r3, hint);
four_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -2293,7 +2550,6 @@ fn read_m_operands(encoding: OperandEncodingM, word: &BitSlice<Lsb0, u8>) -> (Op
let imm = word[13..20].load::<u16>() + (word[27] as u16) << 7 + (word[36] as u16) << 8;
let r3 = word[20..27].load::<u8>();
let hint = word[28..30].load::<u8>();
- eprintln!("m3 operands, r1={}, imm={}, r3={}, hint={}", r1, imm, r3, hint);
four_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -2307,7 +2563,6 @@ fn read_m_operands(encoding: OperandEncodingM, word: &BitSlice<Lsb0, u8>) -> (Op
let r2 = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
let hint = word[28..30].load::<u8>();
- eprintln!("m4 operands, r2={}, r3={}, hint={}", r2, r3, hint);
three_op(
Some(0),
Operand::Memory(GPRegister(r2)),
@@ -2324,7 +2579,6 @@ fn read_m_operands(encoding: OperandEncodingM, word: &BitSlice<Lsb0, u8>) -> (Op
let r2 = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
let hint = word[28..30].load::<u8>();
- eprintln!("m5 operands, r2={}, r3={}, imm={}, hint={}", r2, r3, imm, hint);
four_op(
Some(0),
Operand::Memory(GPRegister(r2)),
@@ -2338,7 +2592,6 @@ fn read_m_operands(encoding: OperandEncodingM, word: &BitSlice<Lsb0, u8>) -> (Op
let _ = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
let hint = word[28..30].load::<u8>();
- eprintln!("m6 operands, f1={}, r3={}, hint={}", f1, r3, hint);
three_op(
Some(0),
Operand::FloatRegister(FloatRegister(f1)),
@@ -2351,7 +2604,6 @@ fn read_m_operands(encoding: OperandEncodingM, word: &BitSlice<Lsb0, u8>) -> (Op
let r2 = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
let hint = word[28..30].load::<u8>();
- eprintln!("m7 operands, f1={}, r3={}, r2={}, hint={}", f1, r3, r2, hint);
four_op(
Some(0),
Operand::FloatRegister(FloatRegister(f1)),
@@ -2369,7 +2621,6 @@ fn read_m_operands(encoding: OperandEncodingM, word: &BitSlice<Lsb0, u8>) -> (Op
let imm = (((imm as i16) << 7) >> 7) as i64;
let r3 = word[20..27].load::<u8>();
let hint = word[28..30].load::<u8>();
- eprintln!("m8 operands, f1={}, r3={}, imm={}, hint={}", f1, r3, imm, hint);
four_op(
Some(0),
Operand::FloatRegister(FloatRegister(f1)),
@@ -2383,7 +2634,6 @@ fn read_m_operands(encoding: OperandEncodingM, word: &BitSlice<Lsb0, u8>) -> (Op
let f2 = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
let hint = word[28..30].load::<u8>();
- eprintln!("m9 operands, f2={}, r3={}, hint={}", f2, r3, hint);
three_op(
Some(0),
Operand::Memory(GPRegister(r3)),
@@ -2401,7 +2651,6 @@ fn read_m_operands(encoding: OperandEncodingM, word: &BitSlice<Lsb0, u8>) -> (Op
let r3 = word[20..27].load::<u8>();
let hint = word[28..30].load::<u8>();
// TODO: memory operand here?
- eprintln!("m10 operands, r3={}, f2={}, imm={}, hint={}", r3, f2, imm, hint);
four_op(
Some(0),
Operand::Memory(GPRegister(r3)),
@@ -2415,7 +2664,6 @@ fn read_m_operands(encoding: OperandEncodingM, word: &BitSlice<Lsb0, u8>) -> (Op
let f2 = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
let hint = word[28..30].load::<u8>();
- eprintln!("m11 operands, f1={}, f2={}, r3={}, hint={}", f1, f2, r3, hint);
four_op(
Some(1),
Operand::FloatRegister(FloatRegister(f1)),
@@ -2437,7 +2685,6 @@ fn read_m_operands(encoding: OperandEncodingM, word: &BitSlice<Lsb0, u8>) -> (Op
8
};
let hint = word[28..30].load::<u8>();
- eprintln!("m12 operands, f1={}, f2={}, r3={}, hint={}", f1, f2, r3, hint);
(
Some(1),
[
@@ -2454,7 +2701,6 @@ fn read_m_operands(encoding: OperandEncodingM, word: &BitSlice<Lsb0, u8>) -> (Op
let _ = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
let hint = word[28..30].load::<u8>();
- eprintln!("m13 operands, r3={}, hint={}", r3, hint);
two_op(
Option::None,
Operand::Memory(GPRegister(r3)),
@@ -2466,7 +2712,6 @@ fn read_m_operands(encoding: OperandEncodingM, word: &BitSlice<Lsb0, u8>) -> (Op
let r2 = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
let hint = word[28..30].load::<u8>();
- eprintln!("m14 operands, r2={}, r3={}, hint={}", r2, r3, hint);
three_op(
Option::None,
Operand::Memory(GPRegister(r3)),
@@ -2480,7 +2725,6 @@ fn read_m_operands(encoding: OperandEncodingM, word: &BitSlice<Lsb0, u8>) -> (Op
let r2 = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
let hint = word[28..30].load::<u8>();
- eprintln!("m16 operands, r1={}, r2={}, r3={}, hint={}", r1, r2, r3, hint);
four_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -2489,11 +2733,44 @@ fn read_m_operands(encoding: OperandEncodingM, word: &BitSlice<Lsb0, u8>) -> (Op
Operand::ImmU64(hint as u64)
)
}
+ M17 => {
+ let r1 = word[6..13].load::<u8>();
+ let i = word[13..16].load::<u8>() as i8;
+ let imm = ((i << 5) >> 5) as i64;
+ let r3 = word[20..27].load::<u8>();
+ let hint = word[28..30].load::<u8>();
+ four_op(
+ Some(0),
+ Operand::GPRegister(GPRegister(r1)),
+ Operand::Memory(GPRegister(r3)),
+ Operand::ImmI64(imm),
+ Operand::ImmU64(hint as u64)
+ )
+ }
+ M18 => {
+ let f1 = word[6..13].load::<u8>();
+ let r2 = word[13..20].load::<u8>();
+ let _ = word[20..27].load::<u8>();
+ two_op(
+ Some(0),
+ Operand::FloatRegister(FloatRegister(f1)),
+ Operand::GPRegister(GPRegister(r2)),
+ )
+ }
+ M19 => {
+ let r1 = word[6..13].load::<u8>();
+ let f2 = word[13..20].load::<u8>();
+ let _ = word[20..27].load::<u8>();
+ two_op(
+ Some(0),
+ Operand::GPRegister(GPRegister(r1)),
+ Operand::FloatRegister(FloatRegister(f2)),
+ )
+ }
M29 => {
let _ = word[6..13].load::<u8>();
let r2 = word[13..20].load::<u8>();
let ar3 = word[20..27].load::<u8>();
- eprintln!("m29 operands, r2={}, ar3={}", r2, ar3);
two_op(
Some(0),
Operand::ApplicationRegister(ApplicationRegister(ar3)),
@@ -2504,7 +2781,6 @@ fn read_m_operands(encoding: OperandEncodingM, word: &BitSlice<Lsb0, u8>) -> (Op
let r1 = word[6..13].load::<u8>();
let _ = word[13..20].load::<u8>();
let ar3 = word[20..27].load::<u8>();
- eprintln!("m31 operands, r1={}, ar3={}", r1, ar3);
two_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -2516,19 +2792,19 @@ fn read_m_operands(encoding: OperandEncodingM, word: &BitSlice<Lsb0, u8>) -> (Op
let sof = word[13..20].load::<u8>();
let sol = word[20..27].load::<u8>();
let sor = word[27..31].load::<u8>();
- eprintln!("m34 operands, r1={}, sof={}, sol={}, sor={}", r1, sof, sol, sor);
- four_op(
+ (
Some(0),
- Operand::GPRegister(GPRegister(r1)),
- // ar.pfs? which number is pfs?
- Operand::ImmU64(sof as u64),
- Operand::ImmU64(sol as u64),
- Operand::ImmU64(sor as u64),
+ [
+ Operand::GPRegister(GPRegister(r1)),
+ Operand::ApplicationRegister(ApplicationRegister::PFS),
+ Operand::ImmU64(sof as u64),
+ Operand::ImmU64(sol as u64),
+ Operand::ImmU64(sor as u64),
+ ]
)
}
M48 => {
- let i = word[6..26].load::<u32>() + (word[36] as u32) << 20;
- eprintln!("m48 operands, imm={}", i);
+ let i = word[6..26].load::<u32>() + ((word[36] as u32) << 20);
one_op(
false,
Operand::ImmU64(i as u64),
@@ -2548,7 +2824,6 @@ fn read_a_operands(encoding: OperandEncodingA, word: &BitSlice<Lsb0, u8>) -> (Op
let r1 = word[6..13].load::<u8>();
let r2 = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
- eprintln!("a1 operands, r1={}, r2={}, r3={}", r1, r2, r3);
three_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -2561,7 +2836,6 @@ fn read_a_operands(encoding: OperandEncodingA, word: &BitSlice<Lsb0, u8>) -> (Op
let r2 = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
let ct = word[27..29].load::<u8>();
- eprintln!("a2 operands, r1={}, r2={}, r3={}, ct={}", r1, r2, r3, ct);
four_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -2576,7 +2850,6 @@ fn read_a_operands(encoding: OperandEncodingA, word: &BitSlice<Lsb0, u8>) -> (Op
let immb = word[13..20].load::<u8>();
let s = word[36];
let imm = (immb + ((s as u8) << 7)) as i8 as i32;
- eprintln!("a3 operands, r1={}, r3={}, imm={}", r1, r3, imm);
three_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -2590,10 +2863,8 @@ fn read_a_operands(encoding: OperandEncodingA, word: &BitSlice<Lsb0, u8>) -> (Op
let immb = word[13..20].load::<u16>();
let immd = word[27..33].load::<u16>();
let s = word[36];
- eprintln!("immb: {:#b}, immd: {:#b}, s: {}", immb, immd, s);
let imm = ((s as u16) << 13) + (immd << 7) + immb;
let imm = (((imm as i16) << 2) >> 2) as i32;
- eprintln!("a4 operands, r1={}, r3={}, imm={}", r1, r3, imm);
three_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -2608,7 +2879,6 @@ fn read_a_operands(encoding: OperandEncodingA, word: &BitSlice<Lsb0, u8>) -> (Op
let immc_d_s = word[22..37].load::<u32>();
let imm = (immc_d_s << 7) + immb;
let imm = ((imm as i32) << 10) >> 10;
- eprintln!("a5 operands, r1={}, r3={}, imm={}", r1, r3, imm);
three_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -2621,7 +2891,6 @@ fn read_a_operands(encoding: OperandEncodingA, word: &BitSlice<Lsb0, u8>) -> (Op
let r2 = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
let p2 = word[27..33].load::<u8>();
- eprintln!("a6 operands, r2={}, r3={}, p1={}, p2={}", r2, r3, p1, p2);
four_op(
Some(1),
Operand::PredicateRegister(PredicateRegister(p1)),
@@ -2637,7 +2906,6 @@ fn read_a_operands(encoding: OperandEncodingA, word: &BitSlice<Lsb0, u8>) -> (Op
assert_eq!(r2, 0);
let r3 = word[20..27].load::<u8>();
let p2 = word[27..33].load::<u8>();
- eprintln!("a7 operands, r3={}, p1={}, p2={}", r3, p1, p2);
four_op(
Some(1),
Operand::PredicateRegister(PredicateRegister(p1)),
@@ -2653,7 +2921,6 @@ fn read_a_operands(encoding: OperandEncodingA, word: &BitSlice<Lsb0, u8>) -> (Op
let imm = (imm7b + (s as u8) << 7) as i8 as i32;
let r3 = word[20..27].load::<u8>();
let p2 = word[27..33].load::<u8>();
- eprintln!("a8 operands, imm={}, r3={}, p1={}, p2={}", imm, r3, p1, p2);
four_op(
Some(1),
Operand::PredicateRegister(PredicateRegister(p1)),
@@ -2666,7 +2933,6 @@ fn read_a_operands(encoding: OperandEncodingA, word: &BitSlice<Lsb0, u8>) -> (Op
let r1 = word[6..13].load::<u8>();
let r2 = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
- eprintln!("a9 operands, r1={}, r2={}, r3={}", r1, r2, r3);
three_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -2679,7 +2945,6 @@ fn read_a_operands(encoding: OperandEncodingA, word: &BitSlice<Lsb0, u8>) -> (Op
let r2 = word[13..20].load::<u8>();
let r3 = word[20..27].load::<u8>();
let ct = word[27..29].load::<u8>();
- eprintln!("a10 operands, r1={}, r2={}, r3={}, ct={}", r1, r2, r3, ct);
four_op(
Some(0),
Operand::GPRegister(GPRegister(r1)),
@@ -2757,7 +3022,6 @@ fn get_b_opcode_and_encoding(tag: u8, word: &BitSlice<Lsb0, u8>) -> (Opcode, Ope
];
let index = word[27..33].load::<u8>();
- eprintln!("table 4-48 idx {:#b}", index);
if index == 0b100000 {
// `Indirect Branch (Table 4-49)`
const TABLE4_49: [(Opcode, OperandEncodingB); 8] = [
@@ -2838,9 +3102,9 @@ fn get_f_opcode_and_encoding(tag: u8, word: &BitSlice<Lsb0, u8>) -> (Opcode, Ope
// `Table 4-59 Miscellaneous Floating-point 1-bit Opcode Extensions`
if word[33] {
if word[36] {
- (Frcpa, F6)
- } else {
(Frsqta, F7)
+ } else {
+ (Frcpa, F6)
}
} else {
// `Table 4-60 Opcode 0 Miscellaneous Floating-point 6-bit Opcode Extensions`
@@ -2880,9 +3144,9 @@ fn get_f_opcode_and_encoding(tag: u8, word: &BitSlice<Lsb0, u8>) -> (Opcode, Ope
// `Table 4-59 Miscellaneous Floating-point 1-bit Opcode Extensions`
if word[33] {
if word[36] {
- (Fprcpa, F6)
- } else {
(Fprsqrta, F7)
+ } else {
+ (Fprcpa, F6)
}
} else {
// `Table 4-61 Opcode 1 Miscellaneous Floating-point 6-bit Opcode Extensions`
@@ -2933,49 +3197,49 @@ fn get_f_opcode_and_encoding(tag: u8, word: &BitSlice<Lsb0, u8>) -> (Opcode, Ope
0x8 => {
// from section 4.6.1.1
if word[36] {
- (Fma_s_sf, F1)
+ (Fma_s, F1)
} else {
- (Fma_sf, F1)
+ (Fma, F1)
}
},
0x9 => {
// from section 4.6.1.1
if word[36] {
- (Fpma_sf, F1)
+ (Fpma, F1)
} else {
- (Fma_d_sf, F1)
+ (Fma_d, F1)
}
},
0xa => {
// from section 4.6.1.1
if word[36] {
- (Fms_s_sf, F1)
+ (Fms_s, F1)
} else {
- (Fms_sf, F1)
+ (Fms, F1)
}
},
0xb => {
// from section 4.6.1.1
if word[36] {
- (Fpms_sf, F1)
+ (Fpms, F1)
} else {
- (Fms_d_sf, F1)
+ (Fms_d, F1)
}
},
0xc => {
// from section 4.6.1.1
if word[36] {
- (Fnma_s_sf, F1)
+ (Fnma_s, F1)
} else {
- (Fnma_sf, F1)
+ (Fnma, F1)
}
},
0xd => {
// from section 4.6.1.1
if word[36] {
- (Fpnma_sf, F1)
+ (Fpnma, F1)
} else {
- (Fnma_d_sf, F1)
+ (Fnma_d, F1)
}
},
0xe => {
@@ -3001,8 +3265,6 @@ fn get_i_opcode_and_encoding(tag: u8, word: &BitSlice<Lsb0, u8>) -> (Opcode, Ope
use Opcode::*;
use OperandEncodingI::*;
- eprintln!("i tag {}", tag);
-
match tag {
0 => {
let x3 = word[33..36].load::<u8>();
@@ -3227,7 +3489,6 @@ fn get_m_opcode_and_encoding(tag: u8, word: &BitSlice<Lsb0, u8>) -> (Opcode, Ope
use Opcode::*;
use OperandEncodingM::*;
- eprintln!("m tag {}", tag);
match tag {
0 => {
@@ -3280,7 +3541,6 @@ fn get_m_opcode_and_encoding(tag: u8, word: &BitSlice<Lsb0, u8>) -> (Opcode, Ope
},
1 => {
let x3 = word[33..36].load::<u8>();
- eprintln!("x3: {:#b}", x3);
// `Table 4-44 Opcode 1 System/Memory Management 3-bit Opcode Extensions`
if x3 == 0 {
// `Table 4-45 System/Memory Management 6-bit Ext`
@@ -3291,7 +3551,6 @@ fn get_m_opcode_and_encoding(tag: u8, word: &BitSlice<Lsb0, u8>) -> (Opcode, Ope
(Fc, M28),(Probe_rw_fault_imm, M40), (Probe_r_fault_imm, M40), (Probe_w_fault_imm, M40), (Ptc_e, M47), (Purple, None), (Purple, None), (Purple, None), (Probe_r, M38), (Probe_w, M38), (Purple, None), (Purple, None), (Purple, None), (Purple, None), (Purple, None), (Purple, None),
];
let index = word[27..33].load::<u8>();
- eprintln!("idx2: {:#b}", index);
TABLE4_45[index as usize]
} else {
const TABLE4_44: [(Opcode, OperandEncodingM); 8] = [
@@ -3388,9 +3647,6 @@ fn get_m_opcode_and_encoding(tag: u8, word: &BitSlice<Lsb0, u8>) -> (Opcode, Ope
];
let index = ((word[36] as u8) << 1) + (word[27] as u8);
- eprintln!("table {}", index);
- eprintln!(" subidx {:b}", word[30..36].load::<u8>() as usize);
- eprintln!(" x6l {:#b}, x6h {:#b}", word[30..32].load::<u8>(), word[32..36].load::<u8>());
if let Some(op_table) = TABLE4_28[index as usize] {
op_table[word[30..36].load::<u8>() as usize]
} else {
@@ -3554,7 +3810,6 @@ fn get_a_opcode_and_encoding(tag: u8, word: &BitSlice<Lsb0, u8>) -> (Opcode, Ope
match tag {
8 => {
let x2a = word[34..36].load::<u8>();
- eprintln!("zb: {}", word[33]);
if word[33] && x2a != 1 {
// purple (table 4-8 ve=1, x2a = 0, 2, or 3)
return (Purple, None);
@@ -3671,37 +3926,160 @@ fn get_a_opcode_and_encoding(tag: u8, word: &BitSlice<Lsb0, u8>) -> (Opcode, Ope
0xa => (Purple, None),
0xb => (Purple, None),
0xc => {
+ // these two bits are necessary in th index regardless of other details
+ let index =
+ word[12] as u8 + // `c`
+ ((word[33] as u8) << 1); // `ta`
+
let x2 = word[34..36].load::<u8>();
- let encoding = if x2 > 1 {
+ if x2 > 1 {
+ // for table 4-11, the index includes bit 34
+ let index = index +
+ ((word[34] as u8) << 2); // `x2`. `x2` is two buts but we only care about the lower one.
// `Table 4-11 Integer Compare Immediate Opcode Extensions`
- A8
+ const TABLE4_11: [Opcode; 8] = [
+ Cmp_lt,
+ Cmp_lt_unc,
+ Cmp_eq_and,
+ Cmp_ne_and,
+ Cmp4_lt,
+ Cmp4_lt_unc,
+ Cmp4_eq_and,
+ Cmp4_ne_and,
+ ];
+
+ (TABLE4_11[index as usize], A8)
} else {
+ // for table 4-10, the index includes bits 36 and 34
+ let index = index +
+ ((word[36] as u8) << 2) + // `tb`
+ ((word[34] as u8) << 2); // `x2`. `x2` is two buts but we only care about the lower one.
// `Table 4-10 Integer Compare Opcode Extensions`
- if word[36] { A7 } else { A6 }
- };
- unimplemented!("type a, tag c");
+ let encoding = if word[36] { A7 } else { A6 };
+ const TABLE4_10: [Opcode; 16] = [
+ Cmp_lt,
+ Cmp_lt_unc,
+ Cmp_eq_and,
+ Cmp_ne_and,
+ Cmp_gt_and,
+ Cmp_le_and,
+ Cmp_ge_and,
+ Cmp_lt_and,
+ Cmp4_lt,
+ Cmp4_lt_unc,
+ Cmp4_eq_and,
+ Cmp4_ne_and,
+ Cmp4_gt_and,
+ Cmp4_le_and,
+ Cmp4_ge_and,
+ Cmp4_lt_and,
+ ];
+ (TABLE4_10[index as usize], encoding)
+ }
}
0xd => {
+ // these two bits are necessary in th index regardless of other details
+ let index =
+ word[12] as u8 + // `c`
+ ((word[33] as u8) << 1); // `ta`
+
let x2 = word[34..36].load::<u8>();
- let encoding = if x2 > 1 {
+ if x2 > 1 {
+ // for table 4-11, the index includes bit 34
+ let index = index +
+ ((word[34] as u8) << 2); // `x2`. `x2` is two buts but we only care about the lower one.
// `Table 4-11 Integer Compare Immediate Opcode Extensions`
- A8
+ const TABLE4_11: [Opcode; 8] = [
+ Cmp_ltu,
+ Cmp_ltu_unc,
+ Cmp_eq_or,
+ Cmp_ne_or,
+ Cmp4_ltu,
+ Cmp4_ltu_unc,
+ Cmp4_eq_or,
+ Cmp4_ne_or,
+ ];
+
+ (TABLE4_11[index as usize], A8)
} else {
+ // for table 4-10, the index includes bits 36 and 34
+ let index = index +
+ ((word[36] as u8) << 2) + // `tb`
+ ((word[34] as u8) << 2); // `x2`. `x2` is two buts but we only care about the lower one.
// `Table 4-10 Integer Compare Opcode Extensions`
- if word[36] { A7 } else { A6 }
- };
- unimplemented!("type a, tag d");
+ let encoding = if word[36] { A7 } else { A6 };
+ const TABLE4_10: [Opcode; 16] = [
+ Cmp_ltu,
+ Cmp_ltu_unc,
+ Cmp_eq_or,
+ Cmp_ne_or,
+ Cmp_gt_or,
+ Cmp_le_or,
+ Cmp_ge_or,
+ Cmp_lt_or,
+ Cmp4_ltu,
+ Cmp4_ltu_unc,
+ Cmp4_eq_or,
+ Cmp4_ne_or,
+ Cmp4_gt_or,
+ Cmp4_le_or,
+ Cmp4_ge_or,
+ Cmp4_lt_or,
+ ];
+ (TABLE4_10[index as usize], encoding)
+ }
}
0xe => {
+ // these two bits are necessary in th index regardless of other details
+ let index =
+ word[12] as u8 + // `c`
+ ((word[33] as u8) << 1); // `ta`
+
let x2 = word[34..36].load::<u8>();
- let encoding = if x2 > 1 {
+ if x2 > 1 {
+ // for table 4-11, the index includes bit 34
+ let index = index +
+ ((word[34] as u8) << 2); // `x2`. `x2` is two buts but we only care about the lower one.
// `Table 4-11 Integer Compare Immediate Opcode Extensions`
- A8
+ const TABLE4_11: [Opcode; 8] = [
+ Cmp_eq,
+ Cmp_eq_unc,
+ Cmp_eq_or_andcm,
+ Cmp_ne_or_andcm,
+ Cmp4_eq,
+ Cmp4_eq_unc,
+ Cmp4_eq_or_andcm,
+ Cmp4_ne_or_andcm,
+ ];
+
+ (TABLE4_11[index as usize], A8)
} else {
+ // for table 4-10, the index includes bits 36 and 34
+ let index = index +
+ ((word[36] as u8) << 2) + // `tb`
+ ((word[34] as u8) << 2); // `x2`. `x2` is two buts but we only care about the lower one.
// `Table 4-10 Integer Compare Opcode Extensions`
- if word[36] { A7 } else { A6 }
- };
- unimplemented!("type a, tag e");
+ let encoding = if word[36] { A7 } else { A6 };
+ const TABLE4_10: [Opcode; 16] = [
+ Cmp_eq,
+ Cmp_eq_unc,
+ Cmp_eq_or_andcm,
+ Cmp_ne_or_andcm,
+ Cmp_gt_or_andcm,
+ Cmp_le_or_andcm,
+ Cmp_ge_or_andcm,
+ Cmp_lt_or_andcm,
+ Cmp4_eq,
+ Cmp4_eq_unc,
+ Cmp4_eq_or_andcm,
+ Cmp4_ne_or_andcm,
+ Cmp4_gt_or_andcm,
+ Cmp4_le_or_andcm,
+ Cmp4_ge_or_andcm,
+ Cmp4_lt_or_andcm,
+ ];
+ (TABLE4_10[index as usize], encoding)
+ }
}
0xf => (Purple, None),
_ => {
@@ -3813,7 +4191,7 @@ enum OperandEncodingM {
M48,
}
-#[derive(Copy, Clone, Debug)]
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
enum OperandEncodingB {
None,
B1,
generated by cgit v1.1 at 2024-12-23 04:18:39 +0000