CMOVNS

REG0=GPRv_R():cw MEM0:r:v

x86_64 X86_LEGACY APX CMOV source: xed

XED_CMOVNS_X86_LEGACY_0F_49_537998

Encoding

encoding_kindX86_LEGACY
opcode_bytes49
opcode_map0F
mandatory_prefix-
has_modrmTrue
cpl3
raw_encoding0x0F 0x49 MOD[mm] MOD!=3 REG[rrr] RM[nnn] MODRM()

Operands (2)

# Role Kind Class / Reg Width Access Visibility Encoded in
0 REG0 REG CW EXPLICIT MODRM_REG
1 MEM0 MEM v R EXPLICIT MODRM_RM

Flag effects (1)

SF = READ

Micro-ops sequence (0)

No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.