IMUL
REG0=GPR8_B():r:b:i8 REG1=XED_REG_AL:r:SUPP REG2=XED_REG_AX:w:SUPP
x86_64 X86_LEGACY BINARY APX_F source: xed
XED_IMUL_GPR8i8_APX
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | F6 |
| opcode_map | ONEBYTE |
| mandatory_prefix | - |
| has_modrm | True |
| modrm.reg = /5 | /5 |
| vex_l | 0 |
| requires_mode | long |
| attributes | BYTEOP |
| exception_class | APX-EVEX-INT |
| cpl | 3 |
| raw_encoding | EVV 0xF6 VNP MAP4 MOD[0b11] MOD=3 UBIT=1 REG[0b101] RM[nnn] ND=0 NO_SCC_NF0 VL128 mode64 NOEVSR ZEROING=0 EVAPX() |
Operands (3)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | REG0 | REG | b | R | EXPLICIT | MODRM_REG | |
| 1 | REG1 | REG | (=AL) | R | SUPPRESSED | MODRM_REG | |
| 2 | REG2 | REG | (=AX) | w | W | SUPPRESSED | MODRM_REG |
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.