VFRCZPD
REG0=XMM_R():w:dq:f64 MEM0:r:dq:f64 REG0=XMM_R():w:dq:f64 REG1=XMM_B():r:dq:f64 REG0=YMM_R():w:qq:f64 MEM0:r:qq:f64 REG0=YMM_R():w:qq:f64 REG1=YMM_B():r:qq:f64
x86_64 X86_LEGACY XOP XOP source: xed
XED_VFRCZPD_X86_LEGACY_ONEBYTE_81_772322
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | 81 81 81 81 |
| opcode_map | ONEBYTE |
| mandatory_prefix | - |
| has_modrm | True |
| vex_l | 1 |
| attributes | MXCSR AMDONLY |
| cpl | 3 |
| raw_encoding | XOPV 0x81 VNP W0 VL128 NOVSR XMAP9 MOD[mm] MOD!=3 REG[rrr] RM[nnn] MODRM() XOPV 0x81 VNP W0 VL128 NOVSR XMAP9 MOD[0b11] MOD=3 REG[rrr] RM[nnn] XOPV 0x81 VNP W0 VL256 NOVSR XMAP9 MOD[mm] MOD!=3 REG[rrr] RM[nnn] MODRM() XOPV 0x81 VNP W0 VL256 NOVSR XMAP9 MOD[0b11] MOD=3 REG[rrr] RM[nnn] |
Operands (8)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | REG0 | REG | w | W | EXPLICIT | MODRM_REG | |
| 1 | MEM0 | MEM | f64 | R | EXPLICIT | MODRM_RM | |
| 2 | REG1 | REG | w | W | EXPLICIT | MODRM_REG | |
| 3 | REG2 | REG | f64 | R | EXPLICIT | MODRM_REG | |
| 4 | REG3 | REG | w | W | EXPLICIT | MODRM_REG | |
| 5 | MEM1 | MEM | f64 | R | EXPLICIT | MODRM_RM | |
| 6 | REG4 | REG | w | W | EXPLICIT | MODRM_REG | |
| 7 | REG5 | REG | f64 | R | EXPLICIT | MODRM_REG |
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.