CMOV - assembly (CMOV 관련 모든 명령어 정리)

CMOV -- Conditional Move (조건부 대입) 명령어 정리

※ : r32, r/m32에도 동일하게 적용된다.

ex) CMOVZ ecx, [ebp-23ch]  :  ecx가 0(ZF==1)이라면 ecx에 [ebp-23ch]를 대입한다.

C : CMP

MOV

Z : Condition

(if dst==zero)  ==> mov ecx, [ebp-23ch] 이라고 생각하면 이해가 쉽다.

Opcode	Instruction	Description
0F 40 /r	CMOVO r16, r/m16	Move if overflow (OF=0)
0F 41 /r	CMOVNO r16, r/m16	Move if not overflow (OF=0)
0F 42 /r	CMOVB r16, r/m16	Move if below (CF=1)
0F 42 /r	CMOVC r16, r/m16	Move if carry (CF=1)
0F 43 /r	CMOVAE r16, r/m16	Move if above or equal (CF=0)
0F 43 /r	CMOVNB r16, r/m16	Move if not below (CF=0)
0F 43 /r	CMOVNC r16, r/m16	Move if not carry (CF=0)
0F 44 /r	CMOVE r16, r/m16	Move if equal (ZF=1)
0F 44 /r	CMOVZ r16, r/m16	Move if zero (ZF=1)
0F 45 /r	CMOVNE r16, r/m16	Move if not equal (ZF=0)
0F 45 /r	CMOVNZ r16, r/m16	Move if not zero (ZF=0)
0F 46 /r	CMOVBE r16, r/m16	Move if below or equal (CF=1 or ZF=1)
0F 46 /r	CMOVNA r16, r/m16	Move if not above (CF=1 or ZF=1)
0F 47 /r	CMOVA r16, r/m16	Move if above (CF=0 and ZF=0)
0F 47 /r	CMOVNBE r16, r/m16	Move if not below or equal (CF=0 and ZF=0)
0F 48 /r	CMOVS r16, r/m16	Move if sign (SF=1)
0F 49 /r	CMOVNS r16, r/m16	Move if not sign (SF=0)
0F 4A /r	CMOVP r16, r/m16	Move if parity (PF=1)
0F 4A /r	CMOVPE r16, r/m16	Move if parity even (PF=1)
0F 4B /r	CMOVNP r16, r/m16	Move if not parity (PF=0)
0F 4B /r	CMOVPO r16, r/m16	Move if parity odd (PF=0)
0F 4C /r	CMOVL r16, r/m16	Move if less (SF<>OF)
0F 4C /r	CMOVNGE r16, r/m16	Move if not greater or equal (SF<>OF)
0F 4D /r	CMOVGE r16, r/m16	Move if greater or equal (SF=OF)
0F 4D /r	CMOVNL r16, r/m16	Move if not less (SF=OF)
0F 4E /r	CMOVLE r16, r/m16	Move if less or equal (ZF=1 or SF<>OF)
0F 4E /r	CMOVNG r16, r/m16	Move if not greater (ZF=1 or SF<>OF)
0F 4F /r	CMOVG r16, r/m16	Move if greater (ZF=0 and SF=OF)
0F 4F /r	CMOVNLE r16, r/m16	Move if not less or equal (ZF=0 and SF=OF)