REP_LODSB
REG0=XED_REG_AL:cw:SUPP MEM0:cr:SUPP:b BASE0=ArSI():rcw:SUPP SEG0=FINAL_DSEG():r:SUPP REG1=ArCX():rcw:SUPP REG0=XED_REG_AL:cw:SUPP MEM0:cr:SUPP:b BASE0=ArSI():rcw:SUPP SEG0=FINAL_DSEG():r:SUPP REG1=ArCX():rcw:SUPP
x86_64 X86_LEGACY STRINGOP I86 source: xed
XED_REP_LODSB_X86_LEGACY_ONEBYTE_AC_677094
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | AC AC |
| opcode_map | ONEBYTE |
| mandatory_prefix | - |
| has_modrm | False |
| attributes | REP fixed_base0 BYTEOP |
| cpl | 3 |
| raw_encoding | 0xAC repe norex2_prefix OVERRIDE_SEG0() 0xAC repne norex2_prefix OVERRIDE_SEG0() |
Operands (10)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | REG0 | REG | (=AL) | CW | SUPPRESSED | MODRM_REG | |
| 1 | MEM0 | MEM | b | CR | SUPPRESSED | MODRM_RM | |
| 2 | BASE0 | REG | R | SUPPRESSED | |||
| 3 | SEG0 | REG | R | SUPPRESSED | |||
| 4 | REG1 | REG | R | SUPPRESSED | MODRM_REG | ||
| 5 | REG2 | REG | (=AL) | CW | SUPPRESSED | MODRM_REG | |
| 6 | MEM1 | MEM | b | CR | SUPPRESSED | MODRM_RM | |
| 7 | BASE0 | REG | R | SUPPRESSED | |||
| 8 | SEG0 | REG | R | SUPPRESSED | |||
| 9 | REG3 | REG | R | SUPPRESSED | MODRM_REG |
Flag effects (1)
DF = READ
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.