ROL
MEM0:rw:b IMM0:r:b:IMPL REG0=GPR8_B():rw IMM0:r:b:IMPL
x86_64 X86_LEGACY ROTATE I86 source: xed
XED_ROL_MEMb_ONE ROL_GPR8_ONE
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | D0 D0 |
| opcode_map | ONEBYTE |
| mandatory_prefix | - |
| has_modrm | True |
| modrm.reg = /0 | /0 |
| attributes | BYTEOP IMPLICIT_ONE |
| cpl | 3 |
| raw_encoding | 0xD0 MOD[mm] MOD!=3 REG[0b000] RM[nnn] MODRM() ONE() 0xD0 MOD[0b11] MOD=3 REG[0b000] RM[nnn] ONE() |
Operands (4)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | MEM0 | MEM | b | RW | EXPLICIT | MODRM_RM | |
| 1 | IMM0 | IMM | b | R | IMPLICIT | IMM | |
| 2 | REG0 | REG | RW | EXPLICIT | MODRM_REG | ||
| 3 | IMM1 | IMM | b | R | IMPLICIT | IMM |
Flag effects (2)
CF = WRITE
OF = WRITE
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.