SCASW
REG0=XED_REG_AX:r:SUPP MEM0:r:SUPP:w BASE0=ArDI():rw:SUPP SEG0=FINAL_ESEG():r:SUPP REG0=XED_REG_AX:r:SUPP MEM0:r:SUPP:w BASE0=ArDI():rw:SUPP SEG0=FINAL_ESEG():r:SUPP REG0=XED_REG_AX:r:SUPP MEM0:r:SUPP:w BASE0=ArDI():rw:SUPP SEG0=FINAL_ESEG():r:SUPP
x86_64 X86_LEGACY STRINGOP I86 source: xed
XED_SCASW_X86_LEGACY_ONEBYTE_AF_157446
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | AF AF AF |
| opcode_map | ONEBYTE |
| mandatory_prefix | - |
| has_modrm | False |
| requires_mode | long |
| attributes | fixed_base0 |
| cpl | 3 |
| raw_encoding | 0xAF mode16 no66_prefix norep 0xAF mode32 66_prefix norep 0xAF mode64 norexw_prefix 66_prefix norep norex2_prefix |
Operands (12)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | REG0 | REG | (=AX) | R | SUPPRESSED | MODRM_REG | |
| 1 | MEM0 | MEM | w | R | SUPPRESSED | MODRM_RM | |
| 2 | BASE0 | REG | RW | SUPPRESSED | |||
| 3 | SEG0 | REG | R | SUPPRESSED | |||
| 4 | REG1 | REG | (=AX) | R | SUPPRESSED | MODRM_REG | |
| 5 | MEM1 | MEM | w | R | SUPPRESSED | MODRM_RM | |
| 6 | BASE0 | REG | RW | SUPPRESSED | |||
| 7 | SEG0 | REG | R | SUPPRESSED | |||
| 8 | REG2 | REG | (=AX) | R | SUPPRESSED | MODRM_REG | |
| 9 | MEM2 | MEM | w | R | SUPPRESSED | MODRM_RM | |
| 10 | BASE0 | REG | RW | SUPPRESSED | |||
| 11 | SEG0 | REG | R | SUPPRESSED |
Flag effects (7)
CF = WRITE
PF = WRITE
AF = WRITE
ZF = WRITE
SF = WRITE
DF = READ
OF = WRITE
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.