VFMADD231PS
REG0=XMM_R():rw:dq:f32 REG1=XMM_N():r:dq:f32 MEM0:r:dq:f32 REG0=XMM_R():rw:dq:f32 REG1=XMM_N():r:dq:f32 REG2=XMM_B():r:dq:f32 REG0=YMM_R():rw:qq:f32 REG1=YMM_N():r:qq:f32 MEM0:r:qq:f32 REG0=YMM_R():rw:qq:f32 REG1=YMM_N():r:qq:f32 REG2=YMM_B():r:qq:f32
x86_64 X86_LEGACY VFMA FMA source: xed
XED_VFMADD231PS_X86_LEGACY_ONEBYTE_B8_74173
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | B8 B8 B8 B8 |
| opcode_map | ONEBYTE |
| mandatory_prefix | - |
| has_modrm | True |
| vex_l | 1 |
| attributes | MXCSR |
| exception_class | avx-type-2 |
| cpl | 3 |
| raw_encoding | VV1 0xB8 VL128 V66 V0F38 W0 MOD[mm] MOD!=3 REG[rrr] RM[nnn] MODRM() VV1 0xB8 VL128 V66 V0F38 W0 MOD[0b11] MOD=3 REG[rrr] RM[nnn] VV1 0xB8 VL256 V66 V0F38 W0 MOD[mm] MOD!=3 REG[rrr] RM[nnn] MODRM() VV1 0xB8 VL256 V66 V0F38 W0 MOD[0b11] MOD=3 REG[rrr] RM[nnn] |
Operands (12)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | REG0 | REG | f32 | RW | EXPLICIT | MODRM_REG | |
| 1 | REG1 | REG | f32 | R | EXPLICIT | MODRM_REG | |
| 2 | MEM0 | MEM | f32 | R | EXPLICIT | MODRM_RM | |
| 3 | REG2 | REG | f32 | RW | EXPLICIT | MODRM_REG | |
| 4 | REG3 | REG | f32 | R | EXPLICIT | MODRM_REG | |
| 5 | REG4 | REG | f32 | R | EXPLICIT | MODRM_REG | |
| 6 | REG5 | REG | f32 | RW | EXPLICIT | MODRM_REG | |
| 7 | REG6 | REG | f32 | R | EXPLICIT | MODRM_REG | |
| 8 | MEM1 | MEM | f32 | R | EXPLICIT | MODRM_RM | |
| 9 | REG7 | REG | f32 | RW | EXPLICIT | MODRM_REG | |
| 10 | REG8 | REG | f32 | R | EXPLICIT | MODRM_REG | |
| 11 | REG9 | REG | f32 | R | EXPLICIT | MODRM_REG |
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.