SUB_LOCK

BINARY I86 x86_64

SUB_LOCK is an instruction of the x86_64 architecture (x86 / x86-64 (covers 16/32/64-bit modes)), category BINARY. This page lists its 6 encoding forms, distinguished by opcode bytes: 28, 29, 80, 81, 82, 83.

Each form below links to its full decode: the operand roles and where each one is encoded in the instruction, the flag and register effects, and any micro-op sequence authored for it.

XED_SUB_LOCK_MEMb_IMMb_80r5
MEM0:rw:b IMM0:r:b:i8
X86_LEGACY 80 /5 I86
XED_SUB_LOCK_MEMb_IMMb_82r5
MEM0:rw:b IMM0:r:b:i8
X86_LEGACY 82 /5 I86
XED_SUB_LOCK_X86_LEGACY_ONEBYTE_28_562160
MEM0:rw:b REG0=GPR8_R():r
X86_LEGACY 28 /r I86
XED_SUB_LOCK_X86_LEGACY_ONEBYTE_29_853129
MEM0:rw:v REG0=GPRv_R():r
X86_LEGACY 29 /r I86
XED_SUB_LOCK_X86_LEGACY_ONEBYTE_81_669906
MEM0:rw:v IMM0:r:z
X86_LEGACY 81 /5 I86
XED_SUB_LOCK_X86_LEGACY_ONEBYTE_83_206621
MEM0:rw:v IMM0:r:b:i8
X86_LEGACY 83 /5 I86