use crate::protected_mode::OperandSpec; use crate::protected_mode::DecodeError; use crate::protected_mode::RegSpec; use crate::protected_mode::RegisterBank; use crate::protected_mode::Instruction; use crate::protected_mode::Opcode; use crate::protected_mode::read_modrm; use crate::protected_mode::read_E; use crate::protected_mode::read_E_xmm; use crate::protected_mode::read_E_ymm; use crate::protected_mode::read_imm_unsigned; #[derive(Debug)] enum VEXOpcodeMap { Map0F, Map0F38, Map0F3A, } #[derive(Debug)] enum VEXOpcodePrefix { None, Prefix66, PrefixF3, PrefixF2, } #[allow(non_camel_case_types)] #[derive(Debug)] enum VEXOperandCode { Nothing, VPS_71, VPS_71_L, VPS_72, VPS_72_L, VPS_73, VPS_73_L, VMOVSS_10, VMOVSD_10, VMOVSD_11, VMOVSS_11, E_G_xmm, U_G_xmm, M_G_xmm, G_M_xmm, G_U_xmm, E_G_xmm_imm8, U_G_xmm_imm8, E_G_ymm, U_G_ymm, M_G_ymm, G_E_ymm, G_M_ymm, G_U_ymm, E_V_G_ymm, E_V_G_xmm, E_xmm_G_ymm_imm8, Ev_G_xmm_imm8, G_Ex_V_xmm, G_Ey_V_ymm, G_E_xmm, G_E_xmm_imm8, G_E_ymm_imm8, G_xmm_E_xmm, G_xmm_E_ymm, G_ymm_E_xmm, G_ymm_E_ymm, G_V_ymm_E_xmm, M_V_G_xmm, M_V_G_ymm, G_V_E_xmm, G_V_E_xmm_imm8, G_V_E_xmm_xmm4, G_V_E_ymm, G_V_E_ymm_imm8, G_V_E_ymm_ymm4, G_V_M_xmm, G_V_M_ymm, V_xmm_G_ymm_E_ymm_imm8, G_ymm_V_ymm_E_xmm_imm8, G_V_xmm_Ew_imm8, Eq_G_xmm, Ed_G_xmm, G_xmm_Ed, G_xmm_Eq, G_E_V, G_V_E, G_E_Ib, BMI1_F3, } #[inline(never)] pub(crate) fn three_byte_vex>(bytes: &mut T, vex_byte_one: u8, instruction: &mut Instruction, mut length: u8) -> Result<(), DecodeError> { let vex_byte_two = bytes.next().ok_or(DecodeError::ExhaustedInput)?; length += 1; let p = vex_byte_two & 0x03; let p = match p { 0x00 => VEXOpcodePrefix::None, 0x01 => VEXOpcodePrefix::Prefix66, 0x02 => VEXOpcodePrefix::PrefixF3, 0x03 => VEXOpcodePrefix::PrefixF2, _ => { unreachable!("p is two bits"); } }; let m = vex_byte_one & 0b11111; // println!("m: {:05b}", m); let m = match m { 0b00001 => VEXOpcodeMap::Map0F, 0b00010 => VEXOpcodeMap::Map0F38, 0b00011 => VEXOpcodeMap::Map0F3A, _ => { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } }; instruction.vex_reg = RegSpec { bank: RegisterBank::X, num: ((vex_byte_two >> 3) & 0b0111) ^ 0b0111, // ignore bit 4 in 32-bit mode }; instruction.prefixes.vex_from_c4(vex_byte_one, vex_byte_two); read_vex_instruction(m, bytes, instruction, &mut length, p)?; instruction.length = length; Ok(()) } pub(crate) fn two_byte_vex>(bytes: &mut T, vex_byte: u8, instruction: &mut Instruction, mut length: u8) -> Result<(), DecodeError> { let p = vex_byte & 0x03; let p = match p { 0x00 => VEXOpcodePrefix::None, 0x01 => VEXOpcodePrefix::Prefix66, 0x02 => VEXOpcodePrefix::PrefixF3, 0x03 => VEXOpcodePrefix::PrefixF2, _ => { unreachable!("p is two bits"); } }; instruction.vex_reg = RegSpec { bank: RegisterBank::X, num: ((vex_byte >> 3) & 0b0111) ^ 0b0111, }; instruction.prefixes.vex_from_c5(vex_byte); read_vex_instruction(VEXOpcodeMap::Map0F, bytes, instruction, &mut length, p)?; instruction.length = length; Ok(()) } fn read_vex_operands>(bytes: &mut T, instruction: &mut Instruction, length: &mut u8, operand_code: VEXOperandCode) -> Result<(), DecodeError> { // println!("operand code: {:?}", operand_code); match operand_code { VEXOperandCode::VPS_71 => { let modrm = read_modrm(bytes, length)?; match (modrm >> 3) & 0b111 { 0b010 => { instruction.opcode = Opcode::VPSRLW; } 0b100 => { instruction.opcode = Opcode::VPSRAW; } 0b110 => { instruction.opcode = Opcode::VPSLLW; } _ => { return Err(DecodeError::InvalidOpcode); } } instruction.modrm_rrr = RegSpec::from_parts(modrm & 7, RegisterBank::X); instruction.vex_reg.bank = RegisterBank::X; instruction.operands[0] = OperandSpec::RegVex; instruction.operands[1] = OperandSpec::RegRRR; instruction.imm = read_imm_unsigned(bytes, 1, length)?; instruction.operands[2] = OperandSpec::ImmI8; instruction.operand_count = 3; Ok(()) } VEXOperandCode::VPS_71_L => { let modrm = read_modrm(bytes, length)?; match (modrm >> 3) & 0b111 { 0b010 => { instruction.opcode = Opcode::VPSRLW; } 0b100 => { instruction.opcode = Opcode::VPSRAW; } 0b110 => { instruction.opcode = Opcode::VPSLLW; } _ => { return Err(DecodeError::InvalidOpcode); } } instruction.modrm_rrr = RegSpec::from_parts(modrm & 7, RegisterBank::Y); instruction.vex_reg.bank = RegisterBank::Y; instruction.operands[0] = OperandSpec::RegVex; instruction.operands[1] = OperandSpec::RegRRR; instruction.imm = read_imm_unsigned(bytes, 1, length)?; instruction.operands[2] = OperandSpec::ImmI8; instruction.operand_count = 3; Ok(()) } VEXOperandCode::VPS_72 => { let modrm = read_modrm(bytes, length)?; match (modrm >> 3) & 0b111 { 0b010 => { instruction.opcode = Opcode::VPSRLD; } 0b100 => { instruction.opcode = Opcode::VPSRAD; } 0b110 => { instruction.opcode = Opcode::VPSLLD; } _ => { return Err(DecodeError::InvalidOpcode); } } instruction.modrm_rrr = RegSpec::from_parts(modrm & 7, RegisterBank::X); instruction.vex_reg.bank = RegisterBank::X; instruction.operands[0] = OperandSpec::RegVex; instruction.operands[1] = OperandSpec::RegRRR; instruction.imm = read_imm_unsigned(bytes, 1, length)?; instruction.operands[2] = OperandSpec::ImmI8; instruction.operand_count = 3; Ok(()) } VEXOperandCode::VPS_72_L => { let modrm = read_modrm(bytes, length)?; match (modrm >> 3) & 0b111 { 0b010 => { instruction.opcode = Opcode::VPSRLD; } 0b100 => { instruction.opcode = Opcode::VPSRAD; } 0b110 => { instruction.opcode = Opcode::VPSLLD; } _ => { return Err(DecodeError::InvalidOpcode); } } instruction.modrm_rrr = RegSpec::from_parts(modrm & 7, RegisterBank::Y); instruction.vex_reg.bank = RegisterBank::Y; instruction.operands[0] = OperandSpec::RegVex; instruction.operands[1] = OperandSpec::RegRRR; instruction.imm = read_imm_unsigned(bytes, 1, length)?; instruction.operands[2] = OperandSpec::ImmI8; instruction.operand_count = 3; Ok(()) } VEXOperandCode::VPS_73 => { let modrm = read_modrm(bytes, length)?; match (modrm >> 3) & 0b111 { 0b010 => { instruction.opcode = Opcode::VPSRLQ; } 0b011 => { instruction.opcode = Opcode::VPSRLDQ; } 0b110 => { instruction.opcode = Opcode::VPSLLQ; } 0b111 => { instruction.opcode = Opcode::VPSLLDQ; } _ => { return Err(DecodeError::InvalidOpcode); } } instruction.modrm_rrr = RegSpec::from_parts(modrm & 7, RegisterBank::X); instruction.vex_reg.bank = RegisterBank::X; instruction.operands[0] = OperandSpec::RegVex; instruction.operands[1] = OperandSpec::RegRRR; instruction.imm = read_imm_unsigned(bytes, 1, length)?; instruction.operands[2] = OperandSpec::ImmI8; instruction.operand_count = 3; Ok(()) } VEXOperandCode::VPS_73_L => { let modrm = read_modrm(bytes, length)?; match (modrm >> 3) & 0b111 { 0b000 | 0b001 | 0b100 | 0b101 => { return Err(DecodeError::InvalidOpcode); } 0b010 => { instruction.opcode = Opcode::VPSRLQ; } 0b011 => { instruction.opcode = Opcode::VPSRLDQ; } 0b110 => { instruction.opcode = Opcode::VPSLLQ; } 0b111 => { instruction.opcode = Opcode::VPSLLDQ; } _ => { unreachable!("r is only three bits"); } } instruction.modrm_rrr = RegSpec::from_parts(modrm & 7, RegisterBank::Y); instruction.vex_reg.bank = RegisterBank::Y; instruction.operands[0] = OperandSpec::RegVex; instruction.operands[1] = OperandSpec::RegRRR; instruction.imm = read_imm_unsigned(bytes, 1, length)?; instruction.operands[2] = OperandSpec::ImmI8; instruction.operand_count = 3; Ok(()) } VEXOperandCode::VMOVSS_10 | VEXOperandCode::VMOVSD_10 => { let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X); let mem_oper = read_E_xmm(bytes, instruction, modrm, length)?; instruction.operands[0] = OperandSpec::RegRRR; match mem_oper { OperandSpec::RegMMM => { instruction.operands[1] = OperandSpec::RegVex; instruction.operands[2] = OperandSpec::RegMMM; instruction.operand_count = 3; }, other => { instruction.operands[1] = other; instruction.operand_count = 2; } } Ok(()) }, VEXOperandCode::VMOVSS_11 | VEXOperandCode::VMOVSD_11 => { let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X); let mem_oper = read_E_xmm(bytes, instruction, modrm, length)?; instruction.operands[1] = OperandSpec::RegRRR; match mem_oper { OperandSpec::RegMMM => { instruction.operands[0] = OperandSpec::RegVex; instruction.operands[2] = OperandSpec::RegMMM; instruction.operand_count = 3; }, other => { instruction.operands[0] = other; instruction.operand_count = 2; } } Ok(()) }, VEXOperandCode::Nothing => { Ok(()) }, VEXOperandCode::Ev_G_xmm_imm8 => { if instruction.vex_reg.num != 0 { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOperand); } let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X); let mem_oper = read_E(bytes, instruction, modrm, 4, length)?; instruction.operands[0] = mem_oper; instruction.operands[1] = OperandSpec::RegRRR; instruction.operands[2] = OperandSpec::ImmU8; instruction.operand_count = 3; instruction.imm = read_imm_unsigned(bytes, 1, length)?; Ok(()) }, VEXOperandCode::G_xmm_Eq => { if instruction.vex_reg.num != 0 { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOperand); } let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X); let mem_oper = read_E(bytes, instruction, modrm, 4, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = mem_oper; instruction.operand_count = 2; Ok(()) } VEXOperandCode::G_xmm_Ed => { if instruction.vex_reg.num != 0 { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOperand); } let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X); let mem_oper = read_E(bytes, instruction, modrm, 4, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = mem_oper; instruction.operand_count = 2; Ok(()) } VEXOperandCode::Eq_G_xmm => { if instruction.vex_reg.num != 0 { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOperand); } let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X); let mem_oper = read_E(bytes, instruction, modrm, 4, length)?; instruction.operands[0] = mem_oper; instruction.operands[1] = OperandSpec::RegRRR; instruction.operand_count = 2; Ok(()) } VEXOperandCode::Ed_G_xmm => { if instruction.vex_reg.num != 0 { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOperand); } let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X); let mem_oper = read_E(bytes, instruction, modrm, 4, length)?; instruction.operands[0] = mem_oper; instruction.operands[1] = OperandSpec::RegRRR; instruction.operand_count = 2; Ok(()) } _op @ VEXOperandCode::E_G_xmm | _op @ VEXOperandCode::U_G_xmm | _op @ VEXOperandCode::M_G_xmm | _op @ VEXOperandCode::E_G_xmm_imm8 | _op @ VEXOperandCode::U_G_xmm_imm8 => { if instruction.vex_reg.num != 0 { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOperand); } let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X); let mem_oper = read_E_xmm(bytes, instruction, modrm, length)?; instruction.operands[0] = mem_oper; instruction.operands[1] = OperandSpec::RegRRR; instruction.operand_count = 2; Ok(()) } _op @ VEXOperandCode::E_xmm_G_ymm_imm8 => { if instruction.vex_reg.num != 0 { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOperand); } let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::Y); let mem_oper = read_E_xmm(bytes, instruction, modrm, length)?; instruction.operands[0] = mem_oper; instruction.operands[1] = OperandSpec::RegRRR; instruction.imm = read_imm_unsigned(bytes, 1, length)?; instruction.operands[2] = OperandSpec::ImmU8; instruction.operand_count = 3; Ok(()) } _op @ VEXOperandCode::G_M_xmm | _op @ VEXOperandCode::G_U_xmm | _op @ VEXOperandCode::G_E_xmm | _op @ VEXOperandCode::G_E_xmm_imm8 => { if instruction.vex_reg.num != 0 { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOperand); } let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X); let mem_oper = read_E_xmm(bytes, instruction, modrm, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = mem_oper; instruction.operand_count = 2; Ok(()) } _op @ VEXOperandCode::G_xmm_E_xmm => { if instruction.vex_reg.num != 0 { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOperand); } let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X); let mem_oper = read_E_xmm(bytes, instruction, modrm, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = mem_oper; instruction.operand_count = 2; Ok(()) } _op @ VEXOperandCode::G_xmm_E_ymm => { if instruction.vex_reg.num != 0 { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOperand); } let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X); let mem_oper = read_E_ymm(bytes, instruction, modrm, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = mem_oper; instruction.operand_count = 2; Ok(()) } _op @ VEXOperandCode::G_ymm_E_xmm => { if instruction.vex_reg.num != 0 { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOperand); } let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::Y); let mem_oper = read_E_xmm(bytes, instruction, modrm, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = mem_oper; instruction.operand_count = 2; Ok(()) } _op @ VEXOperandCode::G_ymm_E_ymm => { if instruction.vex_reg.num != 0 { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOperand); } let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::Y); let mem_oper = read_E_ymm(bytes, instruction, modrm, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = mem_oper; instruction.operand_count = 2; Ok(()) } _op @ VEXOperandCode::E_G_ymm | _op @ VEXOperandCode::U_G_ymm | _op @ VEXOperandCode::M_G_ymm => { if instruction.vex_reg.num != 0 { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOperand); } let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::Y); let mem_oper = read_E_ymm(bytes, instruction, modrm, length)?; instruction.operands[0] = mem_oper; instruction.operands[1] = OperandSpec::RegRRR; instruction.operand_count = 2; Ok(()) } _op @ VEXOperandCode::G_M_ymm | _op @ VEXOperandCode::G_U_ymm | _op @ VEXOperandCode::G_E_ymm => { if instruction.vex_reg.num != 0 { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOperand); } let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::Y); let mem_oper = read_E_ymm(bytes, instruction, modrm, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = mem_oper; instruction.operand_count = 2; Ok(()) } _op @ VEXOperandCode::G_V_E_ymm | _op @ VEXOperandCode::G_V_M_ymm => { let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::Y); instruction.vex_reg.bank = RegisterBank::Y; let mem_oper = read_E_ymm(bytes, instruction, modrm, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = OperandSpec::RegVex; instruction.operands[2] = mem_oper; instruction.operand_count = 3; Ok(()) } _op @ VEXOperandCode::G_V_E_ymm_imm8 => { let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::Y); instruction.vex_reg.bank = RegisterBank::Y; let mem_oper = read_E_ymm(bytes, instruction, modrm, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = OperandSpec::RegVex; instruction.operands[2] = mem_oper; instruction.imm = read_imm_unsigned(bytes, 1, length)?; instruction.operands[3] = OperandSpec::ImmU8; instruction.operand_count = 4; Ok(()) } _op @ VEXOperandCode::E_V_G_ymm | _op @ VEXOperandCode::M_V_G_ymm => { let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::Y); instruction.vex_reg.bank = RegisterBank::Y; let mem_oper = read_E_ymm(bytes, instruction, modrm, length)?; instruction.operands[0] = mem_oper; instruction.operands[1] = OperandSpec::RegVex; instruction.operands[2] = OperandSpec::RegRRR; instruction.operand_count = 3; Ok(()) } _op @ VEXOperandCode::G_V_M_xmm | _op @ VEXOperandCode::G_V_E_xmm => { let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X); let mem_oper = read_E_xmm(bytes, instruction, modrm, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = OperandSpec::RegVex; instruction.operands[2] = mem_oper; instruction.operand_count = 3; Ok(()) } _op @ VEXOperandCode::G_V_E_xmm_imm8 => { let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X); let mem_oper = read_E_xmm(bytes, instruction, modrm, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = OperandSpec::RegVex; instruction.operands[2] = mem_oper; instruction.imm = read_imm_unsigned(bytes, 1, length)?; instruction.operands[3] = OperandSpec::ImmU8; instruction.operand_count = 4; Ok(()) } _op @ VEXOperandCode::G_ymm_V_ymm_E_xmm_imm8 => { let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::Y); instruction.vex_reg.bank = RegisterBank::Y; let mem_oper = read_E_xmm(bytes, instruction, modrm, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = OperandSpec::RegVex; instruction.operands[2] = mem_oper; instruction.imm = read_imm_unsigned(bytes, 1, length)?; instruction.operands[3] = OperandSpec::ImmU8; instruction.operand_count = 4; Ok(()) } _op @ VEXOperandCode::V_xmm_G_ymm_E_ymm_imm8 => { let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::Y); let mem_oper = read_E_ymm(bytes, instruction, modrm, length)?; instruction.operands[0] = OperandSpec::RegVex; instruction.operands[1] = OperandSpec::RegRRR; instruction.operands[2] = mem_oper; instruction.imm = read_imm_unsigned(bytes, 1, length)?; instruction.operands[3] = OperandSpec::ImmU8; instruction.operand_count = 4; Ok(()) } _op @ VEXOperandCode::E_V_G_xmm | _op @ VEXOperandCode::M_V_G_xmm => { let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X); let mem_oper = read_E_xmm(bytes, instruction, modrm, length)?; instruction.operands[0] = mem_oper; instruction.operands[1] = OperandSpec::RegVex; instruction.operands[2] = OperandSpec::RegRRR; instruction.operand_count = 3; Ok(()) } VEXOperandCode::G_Ex_V_xmm => { let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X); let mem_oper = read_E_xmm(bytes, instruction, modrm, length)?; instruction.sib_index.bank = RegisterBank::X; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = mem_oper; instruction.operands[2] = OperandSpec::RegVex; instruction.operand_count = 3; Ok(()) } VEXOperandCode::G_Ey_V_ymm => { let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::Y); let mem_oper = read_E_ymm(bytes, instruction, modrm, length)?; instruction.vex_reg.bank = RegisterBank::Y; instruction.sib_index.bank = RegisterBank::Y; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = mem_oper; instruction.operands[2] = OperandSpec::RegVex; instruction.operand_count = 3; Ok(()) } VEXOperandCode::G_V_E => { let modrm = read_modrm(bytes, length)?; let (opwidth, bank) = (4, RegisterBank::D); instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, bank); instruction.vex_reg.bank = bank; let mem_oper = read_E(bytes, instruction, modrm, opwidth, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = OperandSpec::RegVex; instruction.operands[2] = mem_oper; instruction.operand_count = 3; Ok(()) } VEXOperandCode::G_E_V => { let modrm = read_modrm(bytes, length)?; let (opwidth, bank) = (4, RegisterBank::D); instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, bank); instruction.vex_reg.bank = bank; let mem_oper = read_E(bytes, instruction, modrm, opwidth, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = mem_oper; instruction.operands[2] = OperandSpec::RegVex; instruction.operand_count = 3; Ok(()) } VEXOperandCode::G_E_Ib => { let modrm = read_modrm(bytes, length)?; let (opwidth, bank) = (4, RegisterBank::D); instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, bank); let mem_oper = read_E(bytes, instruction, modrm, opwidth, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = mem_oper; instruction.imm = read_imm_unsigned(bytes, 1, length)?; instruction.operands[2] = OperandSpec::ImmI8; instruction.operand_count = 3; Ok(()) } VEXOperandCode::BMI1_F3 => { let modrm = read_modrm(bytes, length)?; instruction.opcode = match (modrm >> 3) & 7 { 1 => { Opcode::BLSR } 2 => { Opcode::BLSMSK } 3 => { Opcode::BLSI } _ => { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } }; let (opwidth, bank) = (4, RegisterBank::D); instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, bank); let mem_oper = read_E(bytes, instruction, modrm, opwidth, length)?; instruction.operands[0] = OperandSpec::RegVex; instruction.operands[1] = mem_oper; instruction.operand_count = 2; instruction.vex_reg.bank = bank; Ok(()) } VEXOperandCode::G_E_ymm_imm8 => { let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::Y); let mem_oper = read_E_ymm(bytes, instruction, modrm, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = mem_oper; instruction.imm = read_imm_unsigned(bytes, 1, length)?; instruction.operands[2] = OperandSpec::ImmU8; instruction.operand_count = 3; Ok(()) } VEXOperandCode::G_V_E_ymm_ymm4 => { let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::Y); instruction.vex_reg.bank = RegisterBank::Y; let mem_oper = read_E_ymm(bytes, instruction, modrm, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = OperandSpec::RegVex; instruction.operands[2] = mem_oper; instruction.imm = read_imm_unsigned(bytes, 1, length)? >> 4; instruction.operands[3] = OperandSpec::Reg4; instruction.operand_count = 4; Ok(()) } VEXOperandCode::G_V_E_xmm_xmm4 => { let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X); instruction.vex_reg.bank = RegisterBank::X; let mem_oper = read_E_xmm(bytes, instruction, modrm, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = OperandSpec::RegVex; instruction.operands[2] = mem_oper; instruction.imm = read_imm_unsigned(bytes, 1, length)? >> 4; instruction.operands[3] = OperandSpec::Reg4; instruction.operand_count = 4; Ok(()) } VEXOperandCode::G_V_ymm_E_xmm => { let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::Y); instruction.vex_reg.bank = RegisterBank::Y; let mem_oper = read_E_xmm(bytes, instruction, modrm, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = OperandSpec::RegVex; instruction.operands[2] = mem_oper; instruction.operand_count = 3; Ok(()) } VEXOperandCode::G_V_xmm_Ew_imm8 => { let modrm = read_modrm(bytes, length)?; instruction.modrm_rrr = RegSpec::from_parts((modrm >> 3) & 7, RegisterBank::X); instruction.vex_reg.bank = RegisterBank::X; // TODO: but the memory access is word-sized let mem_oper = read_E(bytes, instruction, modrm, 4, length)?; instruction.operands[0] = OperandSpec::RegRRR; instruction.operands[1] = OperandSpec::RegVex; instruction.operands[2] = mem_oper; instruction.imm = read_imm_unsigned(bytes, 1, length)?; instruction.operands[3] = OperandSpec::ImmI8; instruction.operand_count = 4; Ok(()) } } } fn read_vex_instruction>(opcode_map: VEXOpcodeMap, bytes: &mut T, instruction: &mut Instruction, length: &mut u8, p: VEXOpcodePrefix) -> Result<(), DecodeError> { let opc = bytes.next().ok_or(DecodeError::ExhaustedInput)?; *length += 1; // the name of this bit is `L` in the documentation, so use the same name here. #[allow(non_snake_case)] let L = instruction.prefixes.vex().l(); // println!("reading vex instruction from opcode prefix {:?}, L: {}, opc: {:#x}, map:{:?}", p, L, opc, opcode_map); // println!("w? {}", instruction.prefixes.vex().w()); // several combinations simply have no instructions. check for those first. let (opcode, operand_code) = match opcode_map { VEXOpcodeMap::Map0F => { match p { VEXOpcodePrefix::None => { match opc { 0x10 => (Opcode::VMOVUPS, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x11 => (Opcode::VMOVUPS, if L { VEXOperandCode::E_G_ymm } else { VEXOperandCode::E_G_xmm }), // ugh // 0x12 => (Opcode::VMOVHLPS, ..), // 0x12 => (Opcode::VMOVLPS, ..), 0x13 => (Opcode::VMOVLPS, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::M_G_xmm }), 0x14 => (Opcode::VUNPCKLPS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x15 => (Opcode::VUNPCKHPS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), // ugh // 0x16 => (Opcode::VMOVHPS, ..), // 0x16 => (Opcode::VMOVLHPS, ..), 0x17 => (Opcode::VMOVHPS, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::M_G_xmm }), 0x28 => (Opcode::VMOVAPS, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x29 => (Opcode::VMOVAPS, if L { VEXOperandCode::E_G_ymm } else { VEXOperandCode::E_G_xmm }), 0x2B => (Opcode::VMOVNTPS, if L { VEXOperandCode::M_G_ymm } else { VEXOperandCode::M_G_xmm }), 0x2e => (Opcode::VUCOMISS, VEXOperandCode::G_E_xmm), 0x2f => (Opcode::VCOMISS, VEXOperandCode::G_E_xmm), 0x50 => (Opcode::VMOVMSKPS, if L { VEXOperandCode::U_G_ymm } else { VEXOperandCode::U_G_xmm }), 0x51 => (Opcode::VSQRTPS, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x52 => (Opcode::VRSQRTPS, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x53 => (Opcode::VRCPPS, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x57 => (Opcode::VXORPS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x58 => (Opcode::VADDPS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x59 => (Opcode::VMULPS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x5A => (Opcode::VCVTPS2PD, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x5B => (Opcode::VCVTDQ2PS, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x5C => (Opcode::VSUBPS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x5D => (Opcode::VMINPS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x5E => (Opcode::VDIVPS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x5F => (Opcode::VMAXPS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x77 => (Opcode::VZEROUPPER, VEXOperandCode::Nothing), 0xC2 => (Opcode::VCMPPS, if L { VEXOperandCode::G_V_E_ymm_imm8 } else { VEXOperandCode::G_V_E_xmm_imm8 }), 0xC6 => (Opcode::VSHUFPS, if L { VEXOperandCode::G_V_E_ymm_imm8 } else { VEXOperandCode::G_V_E_xmm_imm8 }), _ => { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } } }, VEXOpcodePrefix::Prefix66 => { match opc { 0x0a => (Opcode::VROUNDSS, VEXOperandCode::G_V_E_xmm_imm8), 0x0b => (Opcode::VROUNDSD, VEXOperandCode::G_V_E_xmm_imm8), 0x10 => (Opcode::VMOVUPD, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x11 => (Opcode::VMOVUPD, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x12 => (Opcode::VMOVLPD, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_V_M_xmm }), 0x13 => (Opcode::VMOVLPD, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::M_G_xmm }), 0x14 => (Opcode::VUNPCKLPD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x15 => (Opcode::VUNPCKHPD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x16 => (Opcode::VMOVHPD, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_V_M_xmm }), 0x17 => (Opcode::VMOVHPD, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::M_G_xmm }), 0x28 => (Opcode::VMOVAPD, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x29 => (Opcode::VMOVAPD, if L { VEXOperandCode::E_G_ymm } else { VEXOperandCode::E_G_xmm }), 0x2B => (Opcode::VMOVNTPD, if L { VEXOperandCode::M_G_ymm } else { VEXOperandCode::M_G_xmm }), 0x2e => (Opcode::VUCOMISD, VEXOperandCode::G_E_xmm), 0x2f => (Opcode::VCOMISD, VEXOperandCode::G_E_xmm), 0x50 => (Opcode::VMOVMSKPD, if L { VEXOperandCode::G_U_ymm } else { VEXOperandCode::G_U_xmm }), 0x51 => (Opcode::VSQRTPD, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x57 => (Opcode::VXORPD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x58 => (Opcode::VADDPD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x59 => (Opcode::VMULPD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x5A => (Opcode::VCVTPD2PS, if L { VEXOperandCode::G_xmm_E_ymm } else { VEXOperandCode::G_xmm_E_xmm }), 0x5B => (Opcode::VCVTPS2DQ, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x5C => (Opcode::VSUBPD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x5D => (Opcode::VMINPD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x5E => (Opcode::VDIVPD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x5F => (Opcode::VMAXPD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x60 => (Opcode::VPUNPCKLBW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x61 => (Opcode::VPUNPCKLWD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x62 => (Opcode::VPUNPCKLDQ, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x63 => (Opcode::VPACKSSWB, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x64 => (Opcode::VPCMPGTB, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x65 => (Opcode::VPCMPGTW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x66 => (Opcode::VPCMPGTD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x67 => (Opcode::VPACKUSWB, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x68 => (Opcode::VPUNPCKHBW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x69 => (Opcode::VPUNPCKHWD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x6A => (Opcode::VPUNPCKHDQ, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x6B => (Opcode::VPACKSSDW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x6C => (Opcode::VPUNPCKLQDQ, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x6D => (Opcode::VPUNPCKHQDQ, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x6E => if instruction.prefixes.vex().w() { (Opcode::VMOVQ, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_xmm_Eq }) } else { (Opcode::VMOVD, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_xmm_Ed }) }, 0x6F => (Opcode::VMOVDQA, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x70 => (Opcode::VPSHUFD, if L { VEXOperandCode::G_E_ymm_imm8 } else { VEXOperandCode::G_E_xmm_imm8 }), 0x71 => (Opcode::Invalid, if L { VEXOperandCode::VPS_71_L } else { VEXOperandCode::VPS_71 }), 0x72 => (Opcode::Invalid, if L { VEXOperandCode::VPS_72_L } else { VEXOperandCode::VPS_72 }), 0x73 => (Opcode::Invalid, if L { VEXOperandCode::VPS_73_L } else { VEXOperandCode::VPS_73 }), 0x74 => (Opcode::VPCMPEQB, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x75 => (Opcode::VPCMPEQW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x76 => (Opcode::VPCMPEQD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x7C => (Opcode::VHADDPD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x7D => (Opcode::VHSUBPD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x7E => if instruction.prefixes.vex().w() { (Opcode::VMOVQ, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::Eq_G_xmm }) } else { (Opcode::VMOVD, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::Ed_G_xmm }) } 0x7F => (Opcode::VMOVDQA, if L { VEXOperandCode::E_G_ymm } else { VEXOperandCode::E_G_xmm }), 0xC2 => (Opcode::VCMPPD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xC4 => (Opcode::VPINSRW, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_V_xmm_Ew_imm8 }), 0xC5 => (Opcode::VPEXTRW, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::U_G_xmm_imm8 }), 0xC6 => (Opcode::VSHUFPD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xD0 => (Opcode::VADDSUBPD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xD1 => (Opcode::VPSRLW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xD2 => (Opcode::VPSRLD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xD3 => (Opcode::VPSRLQ, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xD4 => (Opcode::VPADDQ, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xD5 => (Opcode::VPMULLW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xD6 => (Opcode::VMOVQ, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_E_xmm }), 0xD7 => (Opcode::VPMOVMSKB, if L { VEXOperandCode::U_G_ymm } else { VEXOperandCode::U_G_xmm }), 0xD8 => (Opcode::VPSUBUSB, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xD9 => (Opcode::VPSUBUSW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xDB => (Opcode::VPAND, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xDC => (Opcode::VPADDUSB, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xDD => (Opcode::VPADDUSW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xDE => (Opcode::VPMAXUB, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xDF => (Opcode::VPANDN, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xE0 => (Opcode::VPAVGB, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xE1 => (Opcode::VPSRAW, if L { VEXOperandCode::G_V_ymm_E_xmm } else { VEXOperandCode::G_V_E_xmm }), 0xE2 => (Opcode::VPSRAD, if L { VEXOperandCode::G_V_ymm_E_xmm } else { VEXOperandCode::G_V_E_xmm }), 0xE3 => (Opcode::VPAVGW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xE4 => (Opcode::VPMULHUW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xE5 => (Opcode::VPMULHW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xE6 => (Opcode::VCVTTPD2DQ, if L { VEXOperandCode::G_xmm_E_ymm } else { VEXOperandCode::G_E_xmm }), 0xE7 => (Opcode::VMOVNTDQ, if L { VEXOperandCode::M_G_ymm } else { VEXOperandCode::M_G_xmm }), 0xE8 => (Opcode::VPSUBSB, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xE9 => (Opcode::VPSUBSW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xEA => (Opcode::VPMINSW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xEB => (Opcode::VPOR, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xEC => (Opcode::VPADDSB, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xED => (Opcode::VPADDSW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xEE => (Opcode::VPMAXSW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xEF => (Opcode::VPXOR, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xF1 => (Opcode::VPSLLW, if L { VEXOperandCode::G_V_ymm_E_xmm } else { VEXOperandCode::G_V_E_xmm }), 0xF2 => (Opcode::VPSLLD, if L { VEXOperandCode::G_V_ymm_E_xmm } else { VEXOperandCode::G_V_E_xmm }), 0xF3 => (Opcode::VPSLLQ, if L { VEXOperandCode::G_V_ymm_E_xmm } else { VEXOperandCode::G_V_E_xmm }), 0xF4 => (Opcode::VPMULUDQ, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xF5 => (Opcode::VPMADDWD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xF6 => (Opcode::VPSADBW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xF7 => (Opcode::VMASKMOVDQU, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_E_xmm }), 0xF8 => (Opcode::VPSUBB, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xF9 => (Opcode::VPSUBW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xFA => (Opcode::VPSUBD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xFB => (Opcode::VPSUBQ, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xFC => (Opcode::VPADDB, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xFD => (Opcode::VPADDW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xFE => (Opcode::VPADDD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), _ => { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } } } VEXOpcodePrefix::PrefixF2 => { match opc { 0x10 => (Opcode::VMOVSD, VEXOperandCode::VMOVSD_10), 0x11 => (Opcode::VMOVSD, VEXOperandCode::VMOVSD_11), 0x12 => (Opcode::VMOVDDUP, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x2a => (Opcode::VCVTSI2SD, if instruction.prefixes.vex().w() { VEXOperandCode::G_V_E_xmm // 64-bit last operand } else { VEXOperandCode::G_V_E_xmm // 32-bit last operand }), 0x2c => (Opcode::VCVTTSD2SI, if instruction.prefixes.vex().w() { VEXOperandCode::G_E_xmm // 64-bit } else { VEXOperandCode::G_E_xmm // 32-bit }), 0x2d => (Opcode::VCVTSD2SI, if instruction.prefixes.vex().w() { VEXOperandCode::G_E_xmm // 64-bit } else { VEXOperandCode::G_E_xmm // 32-bit }), 0x51 => (Opcode::VSQRTSD, VEXOperandCode::G_V_E_xmm), 0x58 => (Opcode::VADDSD, VEXOperandCode::G_V_E_xmm), 0x59 => (Opcode::VMULSD, VEXOperandCode::G_V_E_xmm), 0x5a => (Opcode::CVTSD2SS, VEXOperandCode::G_V_E_xmm), 0x5c => (Opcode::VSUBSD, VEXOperandCode::G_V_E_xmm), 0x5d => (Opcode::VMINSD, VEXOperandCode::G_V_E_xmm), 0x5e => (Opcode::VDIVSD, VEXOperandCode::G_V_E_xmm), 0x5f => (Opcode::VMAXSD, VEXOperandCode::G_V_E_xmm), 0x70 => (Opcode::VPSHUFLW, if L { VEXOperandCode::G_E_ymm_imm8 } else { VEXOperandCode::G_E_xmm_imm8 }), 0x7c => (Opcode::VHADDPS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x7d => (Opcode::VHSUBPS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xc2 => (Opcode::VCMPSD, VEXOperandCode::G_V_E_xmm_imm8), 0xd0 => (Opcode::VADDSUBPS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0xe6 => (Opcode::VCVTPD2DQ, if L { VEXOperandCode::G_xmm_E_ymm } else { VEXOperandCode::G_xmm_E_xmm }), 0xf0 => (Opcode::VLDDQU, if L { VEXOperandCode::G_M_ymm } else { VEXOperandCode::G_M_ymm }), _ => { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } } } VEXOpcodePrefix::PrefixF3 => { match opc { 0x10 => (Opcode::VMOVSS, VEXOperandCode::VMOVSS_10), 0x11 => (Opcode::VMOVSS, VEXOperandCode::VMOVSS_11), 0x12 => (Opcode::VMOVSLDUP, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x16 => (Opcode::VMOVSHDUP, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x2a => (Opcode::VCVTSI2SS, if instruction.prefixes.vex().w() { VEXOperandCode::G_V_E_xmm // 64-bit last operand } else { VEXOperandCode::G_V_E_xmm // 32-bit last operand }), 0x2c => (Opcode::VCVTTSS2SI, if instruction.prefixes.vex().w() { VEXOperandCode::G_E_xmm // 64-bit } else { VEXOperandCode::G_E_xmm // 32-bit }), 0x2d => (Opcode::VCVTSD2SI, if instruction.prefixes.vex().w() { VEXOperandCode::G_E_xmm // 64-bit } else { VEXOperandCode::G_E_xmm // 32-bit }), 0x51 => (Opcode::VSQRTSS, VEXOperandCode::G_V_E_xmm), 0x52 => (Opcode::VRSQRTSS, VEXOperandCode::G_V_E_xmm), 0x53 => (Opcode::VRCPSS, VEXOperandCode::G_V_E_xmm), 0x58 => (Opcode::VADDSS, VEXOperandCode::G_V_E_xmm), 0x59 => (Opcode::VMULSS, VEXOperandCode::G_V_E_xmm), 0x5a => (Opcode::VCVTSS2SD, VEXOperandCode::G_V_E_xmm), 0x5b => (Opcode::VCVTTPS2DQ, if L { VEXOperandCode::G_ymm_E_ymm } else { VEXOperandCode::G_xmm_E_xmm }), 0x5c => (Opcode::VSUBSS, VEXOperandCode::G_V_E_xmm), 0x5d => (Opcode::VMINSS, VEXOperandCode::G_V_E_xmm), 0x5e => (Opcode::VDIVSS, VEXOperandCode::G_V_E_xmm), 0x5f => (Opcode::VMAXSS, VEXOperandCode::G_V_E_xmm), 0x6f => (Opcode::VMOVDQU, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x70 => (Opcode::VMOVSHDUP, if L { VEXOperandCode::G_E_ymm_imm8 } else { VEXOperandCode::G_E_xmm_imm8 }), 0x7e => (Opcode::VMOVQ, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_E_xmm }), 0x7f => (Opcode::VMOVDQU, if L { VEXOperandCode::E_G_ymm } else { VEXOperandCode::E_G_xmm }), 0xc2 => (Opcode::VCMPSS, VEXOperandCode::G_V_E_xmm_imm8), 0xe6 => (Opcode::VCVTDQ2PD, if L { VEXOperandCode::G_ymm_E_xmm } else { VEXOperandCode::G_xmm_E_xmm }), _ => { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } } } } } VEXOpcodeMap::Map0F38 => { // TODO: verify rejecting invalid W bit if let VEXOpcodePrefix::Prefix66 = p { // possibly valid! match opc { 0x00 => (Opcode::VPSHUFB, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x01 => (Opcode::VPHADDW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x02 => (Opcode::VPHADDD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x03 => (Opcode::VPHADDSW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x04 => (Opcode::VPHADDUBSW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x05 => (Opcode::VPHSUBW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x06 => (Opcode::VPHSUBD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x07 => (Opcode::VPHSUBSW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x08 => (Opcode::VPSIGNB, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x09 => (Opcode::VPSIGNW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x0A => (Opcode::VPSIGND, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x0B => (Opcode::VPMULHRSW, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x0C => (Opcode::VPERMILPS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x0D => (Opcode::VPERMILPD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x0E => (Opcode::VTESTPS, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x0F => (Opcode::VTESTPD, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x13 => (Opcode::VCVTPH2PS, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x16 => (Opcode::VPERMPS, if L { VEXOperandCode::G_V_E_xmm } else { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); }), 0x17 => (Opcode::VPTEST, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x18 => (Opcode::VBROADCASTSS, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x19 => (Opcode::VBROADCASTSD, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x1A => (Opcode::VBROADCASTF128, if L { VEXOperandCode::G_M_ymm } else { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); }), 0x1C => (Opcode::VPABSB, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x1D => (Opcode::VPABSW, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x1E => (Opcode::VPABSD, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x20 => (Opcode::VPMOVSXBW, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x21 => (Opcode::VPMOVSXBD, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x22 => (Opcode::VPMOVSXBQ, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x23 => (Opcode::VPMOVSXWD, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x24 => (Opcode::VPMOVSXWQ, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x25 => (Opcode::VPMOVSXDQ, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x28 => (Opcode::VPMULDQ, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x29 => (Opcode::VPCMPEQQ, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x2A => (Opcode::VMOVNTDQA, if L { VEXOperandCode::G_M_ymm } else { VEXOperandCode::G_M_xmm }), 0x2C => (Opcode::VMASKMOVPS, if L { VEXOperandCode::G_V_M_ymm } else { VEXOperandCode::G_V_M_xmm }), 0x2D => (Opcode::VMASKMOVPD, if L { VEXOperandCode::G_V_M_ymm } else { VEXOperandCode::G_V_M_xmm }), 0x2E => (Opcode::VMASKMOVPS, if L { VEXOperandCode::M_V_G_ymm } else { VEXOperandCode::M_V_G_xmm }), 0x2F => (Opcode::VMASKMOVPD, if L { VEXOperandCode::M_V_G_ymm } else { VEXOperandCode::M_V_G_xmm }), 0x30 => (Opcode::VPMOVZXBW, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x31 => (Opcode::VPMOVZXBD, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x32 => (Opcode::VPMOVZXBQ, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x33 => (Opcode::VPMOVZXWD, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x34 => (Opcode::VPMOVZXWQ, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x35 => (Opcode::VPMOVZXDQ, if L { VEXOperandCode::G_E_ymm } else { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); }), 0x36 => (Opcode::VPERMD, if L { VEXOperandCode::G_V_E_ymm } else { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); }), 0x37 => (Opcode::VPCMPGTQ, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x39 => (Opcode::VPMINSD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x3B => (Opcode::VPMINUD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x3C => (Opcode::VPMAXSB, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x3D => (Opcode::VPMAXSD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x3F => (Opcode::VPMAXUD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x40 => (Opcode::VPMULLD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x41 => (Opcode::VPHMINPOSUW, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_E_xmm }), 0x45 => if instruction.prefixes.vex().w() { (Opcode::VPSRLVQ, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }) } else { (Opcode::VPSRLVD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }) }, 0x46 => (Opcode::VPSRAVD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x47 => if instruction.prefixes.vex().w() { (Opcode::VPSLLVQ, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }) } else { (Opcode::VPSLLVD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }) }, 0x58 => (Opcode::VPBROADCASTD, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x59 => (Opcode::VPBROADCASTQ, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_xmm }), 0x5A => (Opcode::VBROADCASTI128, if L { VEXOperandCode::G_E_ymm } else { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); }), 0x78 => (Opcode::VPBROADCASTB, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_ymm }), 0x79 => (Opcode::VPBROADCASTW, if L { VEXOperandCode::G_E_ymm } else { VEXOperandCode::G_E_ymm }), 0x8C => { if instruction.prefixes.vex().w() { (Opcode::VPMASKMOVD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } else { (Opcode::VPMASKMOVQ, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } }, 0x8E => { if instruction.prefixes.vex().w() { (Opcode::VPMASKMOVD, if L { VEXOperandCode::E_V_G_ymm } else { VEXOperandCode::E_V_G_xmm }) } else { (Opcode::VPMASKMOVQ, if L { VEXOperandCode::E_V_G_ymm } else { VEXOperandCode::E_V_G_xmm }) } }, 0x90 => { if instruction.prefixes.vex().w() { (Opcode::VPGATHERDQ, if L { VEXOperandCode::G_Ey_V_ymm } else { VEXOperandCode::G_Ex_V_xmm }) } else { (Opcode::VPGATHERDD, if L { VEXOperandCode::G_Ey_V_ymm } else { VEXOperandCode::G_Ex_V_xmm }) } }, 0x91 => { if instruction.prefixes.vex().w() { (Opcode::VPGATHERQQ, if L { VEXOperandCode::G_Ey_V_ymm } else { VEXOperandCode::G_Ex_V_xmm }) } else { (Opcode::VPGATHERQD, if L { VEXOperandCode::G_Ey_V_ymm } else { VEXOperandCode::G_Ex_V_xmm }) } }, 0x92 => { if instruction.prefixes.vex().w() { (Opcode::VGATHERDPD, if L { VEXOperandCode::G_E_ymm_imm8 } else { VEXOperandCode::G_E_xmm_imm8 }) } else { (Opcode::VGATHERDPS, if L { VEXOperandCode::G_E_ymm_imm8 } else { VEXOperandCode::G_E_xmm_imm8 }) } }, 0x93 => { if instruction.prefixes.vex().w() { (Opcode::VGATHERQPD, if L { VEXOperandCode::G_E_ymm_imm8 } else { VEXOperandCode::G_E_xmm_imm8 }) } else { (Opcode::VGATHERQPS, if L { VEXOperandCode::G_E_ymm_imm8 } else { VEXOperandCode::G_E_xmm_imm8 }) } }, 0x96 => { if instruction.prefixes.vex().w() { (Opcode::VFMADDSUB132PD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } else { (Opcode::VFMADDSUB132PS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } }, 0x97 => { if instruction.prefixes.vex().w() { (Opcode::VFMSUBADD132PD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } else { (Opcode::VFMSUBADD132PS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } }, 0x98 => { if instruction.prefixes.vex().w() { (Opcode::VFMADD132PD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } else { (Opcode::VFMADD132PS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } }, 0x99 => if instruction.prefixes.vex().w() { (Opcode::VFMADD132SD, VEXOperandCode::G_V_E_xmm /* 64bit */) } else { (Opcode::VFMADD132SS, VEXOperandCode::G_V_E_xmm /* 64bit */) }, 0x9A => { if instruction.prefixes.vex().w() { (Opcode::VFMSUB132PD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } else { (Opcode::VFMSUB132PS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } }, 0x9B => if instruction.prefixes.vex().w() { (Opcode::VFMSUB132SD, VEXOperandCode::G_V_E_xmm /* 64bit */) } else { (Opcode::VFMSUB132SS, VEXOperandCode::G_V_E_xmm /* 64bit */) }, 0x9C => { if instruction.prefixes.vex().w() { (Opcode::VFNMADD132PD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } else { (Opcode::VFNMADD132PS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } }, 0x9D => if instruction.prefixes.vex().w() { (Opcode::VFNMADD132SD, VEXOperandCode::G_V_E_xmm /* 64bit */) } else { (Opcode::VFNMADD132SS, VEXOperandCode::G_V_E_xmm /* 64bit */) }, 0x9E => { if instruction.prefixes.vex().w() { (Opcode::VFNMSUB132PD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } else { (Opcode::VFNMSUB132PS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } }, 0x9F => if instruction.prefixes.vex().w() { (Opcode::VFNMSUB132SD, VEXOperandCode::G_V_E_xmm /* 64bit */) } else { (Opcode::VFNMSUB132SS, VEXOperandCode::G_V_E_xmm /* 64bit */) }, 0xA6 => { if instruction.prefixes.vex().w() { (Opcode::VFMADDSUB213PD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } else { (Opcode::VFMADDSUB213PS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } }, 0xA7 => { if instruction.prefixes.vex().w() { (Opcode::VFMSUBADD213PD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } else { (Opcode::VFMSUBADD213PS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } }, 0xA8 => { if instruction.prefixes.vex().w() { (Opcode::VFMADD213PD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } else { (Opcode::VFMADD213PS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } }, 0xA9 => if instruction.prefixes.vex().w() { (Opcode::VFMADD231SD, VEXOperandCode::G_V_E_xmm /* 64bit */) } else { (Opcode::VFMADD231SS, VEXOperandCode::G_V_E_xmm /* 64bit */) }, 0xAA => { if instruction.prefixes.vex().w() { (Opcode::VFMSUB213PD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } else { (Opcode::VFMSUB213PS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } }, 0xAB => if instruction.prefixes.vex().w() { (Opcode::VFMSUB231SD, VEXOperandCode::G_V_E_xmm /* 64bit */) } else { (Opcode::VFMSUB231SS, VEXOperandCode::G_V_E_xmm /* 64bit */) }, 0xAC => { if instruction.prefixes.vex().w() { (Opcode::VFNMADD213PD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } else { (Opcode::VFNMADD213PS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } }, 0xAD => if instruction.prefixes.vex().w() { (Opcode::VFNMADD213SD, VEXOperandCode::G_V_E_xmm /* 64bit */) } else { (Opcode::VFNMADD213SS, VEXOperandCode::G_V_E_xmm /* 64bit */) }, 0xAE => { if instruction.prefixes.vex().w() { (Opcode::VFNMSUB213PD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } else { (Opcode::VFNMSUB213PS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } }, 0xAF => if instruction.prefixes.vex().w() { (Opcode::VFNMSUB213SD, VEXOperandCode::G_V_E_xmm /* 64bit */) } else { (Opcode::VFNMSUB213SS, VEXOperandCode::G_V_E_xmm /* 64bit */) }, 0xB6 => { if instruction.prefixes.vex().w() { (Opcode::VFMADDSUB231PD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } else { (Opcode::VFMADDSUB231PS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } }, 0xB7 => { if instruction.prefixes.vex().w() { (Opcode::VFMSUBADD231PD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } else { (Opcode::VFMSUBADD231PS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } }, 0xB8 => { if instruction.prefixes.vex().w() { (Opcode::VFMADD231PD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } else { (Opcode::VFMADD231PS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } }, 0xB9 => if instruction.prefixes.vex().w() { (Opcode::VFMADD231SD, VEXOperandCode::G_V_E_xmm /* 64bit */) } else { (Opcode::VFMADD231SS, VEXOperandCode::G_V_E_xmm /* 64bit */) }, 0xBA => { if instruction.prefixes.vex().w() { (Opcode::VFMSUB231PD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } else { (Opcode::VFMSUB231PS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } }, 0xBB => if instruction.prefixes.vex().w() { (Opcode::VFMSUB231SD, VEXOperandCode::G_V_E_xmm /* 64bit */) } else { (Opcode::VFMSUB231SS, VEXOperandCode::G_V_E_xmm /* 64bit */) }, 0xBC => { if instruction.prefixes.vex().w() { (Opcode::VFNMADD231PD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } else { (Opcode::VFNMADD231PS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } }, 0xBD => if instruction.prefixes.vex().w() { (Opcode::VFNMADD231SD, VEXOperandCode::G_V_E_xmm /* 64bit */) } else { (Opcode::VFNMADD231SS, VEXOperandCode::G_V_E_xmm /* 64bit */) }, 0xBE => { if instruction.prefixes.vex().w() { (Opcode::VFNMSUB231PD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } else { (Opcode::VFNMSUB231PS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_ymm }) } }, 0xBF => if instruction.prefixes.vex().w() { (Opcode::VFNMSUB231SD, VEXOperandCode::G_V_E_xmm /* 64bit */) } else { (Opcode::VFNMSUB231SS, VEXOperandCode::G_V_E_xmm /* 64bit */) }, 0xDB => (Opcode::VAESIMC, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_E_xmm }), 0xDC => (Opcode::VAESENC, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_V_E_xmm }), 0xDD => (Opcode::VAESENCLAST, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_V_E_xmm }), 0xDE => (Opcode::VAESDEC, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_V_E_xmm }), 0xDF => (Opcode::VAESDECLAST, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_V_E_xmm }), 0xF7 => (Opcode::SHLX, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_E_V }), _ => { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } } } else if let VEXOpcodePrefix::PrefixF2 = p { match opc { 0xF5 => (Opcode::PDEP, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_V_E }), 0xF6 => (Opcode::MULX, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_V_E }), 0xF7 => (Opcode::SHRX, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_E_V }), _ => { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } } } else if let VEXOpcodePrefix::PrefixF3 = p { match opc { 0xF5 => (Opcode::PEXT, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_V_E }), 0xF7 => (Opcode::SARX, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_E_V }), _ => { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } } } else { match opc { 0xF2 => (Opcode::ANDN, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_V_E }), 0xF3 => (Opcode::Invalid, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::BMI1_F3 }), 0xF5 => (Opcode::BZHI, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_E_V }), 0xF7 => (Opcode::BEXTR, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_E_V }), _ => { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } } } } VEXOpcodeMap::Map0F3A => { if let VEXOpcodePrefix::Prefix66 = p { // possibly valid! match opc { 0x00 => (Opcode::VPERMQ, if L { VEXOperandCode::G_E_ymm_imm8 } else { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); }), 0x01 => (Opcode::VPERMPD, if L { VEXOperandCode::G_E_ymm_imm8 } else { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); }), 0x02 => (Opcode::VPBLENDD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x04 => (Opcode::VPERMILPS, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x05 => (Opcode::VPERMILPD, if L { VEXOperandCode::G_V_E_ymm } else { VEXOperandCode::G_V_E_xmm }), 0x06 => (Opcode::VPERM2F128, if L { VEXOperandCode::G_V_E_ymm } else { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); }), 0x08 => (Opcode::VROUNDPS, if L { VEXOperandCode::G_E_ymm_imm8 } else { VEXOperandCode::G_E_xmm_imm8 }), 0x09 => (Opcode::VROUNDPD, if L { VEXOperandCode::G_E_ymm_imm8 } else { VEXOperandCode::G_E_xmm_imm8 }), 0x0C => (Opcode::VBLENDPS, if L { VEXOperandCode::G_V_E_ymm_imm8 } else { VEXOperandCode::G_V_E_xmm_imm8 }), 0x0D => (Opcode::VBLENDPD, if L { VEXOperandCode::G_V_E_ymm_imm8 } else { VEXOperandCode::G_V_E_xmm_imm8 }), 0x0E => (Opcode::VPBLENDW, if L { VEXOperandCode::G_V_E_ymm_imm8 } else { VEXOperandCode::G_V_E_xmm_imm8 }), 0x0F => (Opcode::VPALIGNR, if L { VEXOperandCode::G_V_E_ymm_imm8 } else { VEXOperandCode::G_V_E_xmm_imm8 }), 0x14 => (Opcode::VPEXTRB, if L || instruction.prefixes.vex().w() { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::Ev_G_xmm_imm8 }), 0x15 => (Opcode::VPEXTRW, if L || instruction.prefixes.vex().w() { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::Ev_G_xmm_imm8 }), 0x16 => if instruction.prefixes.vex().w() { (Opcode::VPEXTRQ, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_E_ymm_imm8 }) } else { (Opcode::VPEXTRD, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { // varies on W VEXOperandCode::Ev_G_xmm_imm8 }) }, 0x17 => (Opcode::VEXTRACTPS, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_E_ymm_imm8 }), 0x18 => (Opcode::VINSERTF128, if L { VEXOperandCode::G_V_E_ymm_imm8 } else { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); }), 0x19 => (Opcode::VEXTRACTF128, if L { VEXOperandCode::E_xmm_G_ymm_imm8 } else { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); }), 0x1D => (Opcode::VCVTPS2PH, if L { VEXOperandCode::E_xmm_G_ymm_imm8 } else { VEXOperandCode::E_G_xmm_imm8 }), 0x20 => (Opcode::VPINSRB, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_V_E_xmm_imm8 }), 0x21 => (Opcode::VINSERTPS, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_V_E_xmm_imm8 }), 0x22 => if instruction.prefixes.vex().w() { (Opcode::VPINSRQ, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_V_E_xmm_imm8 }) } else { (Opcode::VPINSRD, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_V_E_xmm_imm8 }) }, 0x38 => (Opcode::VINSERTI128, if L { VEXOperandCode::G_ymm_V_ymm_E_xmm_imm8 } else { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); }), 0x39 => (Opcode::VEXTRACTI128, if L { VEXOperandCode::V_xmm_G_ymm_E_ymm_imm8 } else { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); }), 0x40 => (Opcode::VDPPS, if L { VEXOperandCode::G_V_E_ymm_imm8 } else { VEXOperandCode::G_V_E_xmm_imm8 }), 0x41 => (Opcode::VDPPD, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_V_E_xmm_imm8 }), 0x42 => (Opcode::VMPSADBW, if L { VEXOperandCode::G_V_E_ymm_imm8 } else { VEXOperandCode::G_V_E_xmm_imm8 }), 0x44 => (Opcode::VPCLMULQDQ, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_V_E_xmm_imm8 }), 0x46 => (Opcode::VPERM2I128, if L { VEXOperandCode::G_V_E_ymm_imm8 } else { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); }), 0x4A => (Opcode::VBLENDVPS, if L { VEXOperandCode::G_V_E_ymm_ymm4 } else { VEXOperandCode::G_V_E_xmm_xmm4 }), 0x4B => (Opcode::VBLENDVPD, if L { VEXOperandCode::G_V_E_ymm_ymm4 } else { VEXOperandCode::G_V_E_xmm_xmm4 }), 0x4C => (Opcode::VPBLENDVB, if L { VEXOperandCode::G_V_E_ymm_ymm4 } else { VEXOperandCode::G_V_E_xmm_xmm4 }), 0x62 => (Opcode::VPCMPISTRM, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_E_xmm_imm8 }), 0x63 => (Opcode::VPCMPISTRI, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_E_xmm_imm8 }), 0xDF => (Opcode::VAESKEYGENASSIST, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_E_xmm_imm8 }), _ => { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } } } else if let VEXOpcodePrefix::PrefixF2 = p { match opc { 0xF0 => (Opcode::RORX, if L { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } else { VEXOperandCode::G_E_Ib }), _ => { instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } } } else { // the only VEX* 0f3a instructions have an implied 66 prefix. instruction.opcode = Opcode::Invalid; return Err(DecodeError::InvalidOpcode); } } }; instruction.opcode = opcode; read_vex_operands(bytes, instruction, length, operand_code) }