SCASQ

REG0=XED_REG_RAX:r:SUPP MEM0:r:SUPP:q BASE0=ArDI():rw:SUPP SEG0=FINAL_ESEG():r:SUPP

x86_64 X86_LEGACY STRINGOP LONGMODE source: xed

XED_SCASQ_X86_LEGACY_ONEBYTE_AF_537050

Encoding

encoding_kindX86_LEGACY
opcode_bytesAF
opcode_mapONEBYTE
mandatory_prefix-
has_modrmFalse
rex_w1
requires_modelong
attributesfixed_base0
cpl3
raw_encoding0xAF mode64 rexw_prefix norep norex2_prefix

Operands (4)

# Role Kind Class / Reg Width Access Visibility Encoded in
0 REG0 REG (=RAX) R SUPPRESSED MODRM_REG
1 MEM0 MEM q R SUPPRESSED MODRM_RM
2 BASE0 REG RW SUPPRESSED
3 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.