2010. 2. 6. 15:18
Jxx - 점프 명렁문 자료실2010. 2. 6. 15:18
| http://inxzone.net Jxx - 점프 명렁문 어셈명령어 의 미 점프 조건 JA 결과가 1보다 클 경우 점프 CF=0 and ZF=0 JAE 결과가 1보다 크거나 같을경우 점프 CF=0 JB 결과가 1보다 작을 경우 점프 CF=1 JBE 결과가 1보다 작거나 같을경우 점프 CF=1 or ZF=1 JC 캐리 플래그가 1일경우 점프 CF=1 JCXZ CX가 0일경우 점프 CX=0 JE 결과가 같을 경우 점프 ZF=1 JG 결과가 클경우 점프(signed) ZF=0 and SF=OF JGE 결과가 크거나 같을 경우 점프 (signed) SF=OF JL 결과가 작을 경우 점프(signed) SF != OF JLE 결과가 작거나 같을 경우 점프 (signed) ZF=1 or SF != OF JMP 무조건 점프 조건없음 JNA 결과가 작을 경우 점프 CF=1 or ZF=1 JNAE 결과가 작거나 같을경우 점프 CF=1 JNB 결과가 클 경우 점프 CF=0 JNBE 결과가 크거나 같을경우 점프 CF=0 and ZF=0 JNC 캐리 플래그가 0일경우 점프 CF=0 JNE 결과가 클 경우 점프 ZF=0 JNG 결과가 작을 경우 점프(signed) ZF=1 or SF != OF JNGE 결과가 작거나 같을 경우 점프(signed) SF != OF JNL 결과가 클 경우 점프(signed) SF=OF JNLE 결과가 크거나 같을 경우 점프(signed) ZF=0 and SF=OF JNO 오버 플로우 하지 않으면 점프(signed) OF=0 JNP Jump if No Parity(Parity가 뭔지 모르겠어요 ㅠ) PF=0 JNS 결과가 Signed 가 아닐때 점프(signed) SF=0 JNZ 결과가 0 이 아닐때 점프Jump if Not Zero ZF=0 JO 오버 플로우 일 경우 점프(signed) OF=1 JP Jump if Parity PF=1 JPE Jump if Parity Even PF=1 JPO Jump if Parity Odd PF=0 JS Signed 이면 점프 (signed) SF=1 JZ 0 이면 점프 ZF=1 클럭 바이트 오퍼랜드 808x 286 386 486 용량 Jx: jump 16 7+m 7+m 3 2 no jump 4 3 3 1 Jx near-label - - 7+m 3 4 no jump - - 3 1 - 점프하는것이 그냥 내려오며 실행되는것보다 실행하는데 더 많은 시간을 소요하므로 코드를 정리하여 원하는 대로 점프 없이 실행되도록 하는것은 좋은 프로그래밍 연습 입니다. - see JCXZ and JMP for their respective timings 77 cb JA rel8 Jump short if above (CF=0 and ZF=0) 73 cb JAE rel8 Jump short if above or equal (CF=0) 72 cb JB rel8 Jump short if below (CF=1) 76 cb JBE rel8 Jump short if below or equal (CF=1 or ZF=1) 72 cb JC rel8 Jump short if carry (CF=1) E3 cb JCXZ rel8 Jump short if CX register is 0 E3 cb JECXZ rel8 Jump short if ECX register is 0 74 cb JE rel8 Jump short if equal (ZF=1) 7F cb JG rel8 Jump short if greater (ZF=0 and SF=OF) 7D cb JGE rel8 Jump short if greater or equal (SF=OF) 7C cb JL rel8 Jump short if less (SF<>OF) 7E cb JLE rel8 Jump short if less or equal (ZF=1 or SF<>OF) 76 cb JNA rel8 Jump short if not above (CF=1 or ZF=1) 72 cb JNAE rel8 Jump short if not above or equal (CF=1) 73 cb JNB rel8 Jump short if not below (CF=0) 77 cb JNBE rel8 Jump short if not below or equal (CF=0 and ZF=0) 73 cb JNC rel8 Jump short if not carry (CF=0) 75 cb JNE rel8 Jump short if not equal (ZF=0) 7E cb JNG rel8 Jump short if not greater (ZF=1 or SF<>OF) 7C cb JNGE rel8 Jump short if not greater or equal (SF<>OF) 7D cb JNL rel8 Jump short if not less (SF=OF) 7F cb JNLE rel8 Jump short if not less or equal (ZF=0 and SF=OF) 71 cb JNO rel8 Jump short if not overflow (OF=0) 7B cb JNP rel8 Jump short if not parity (PF=0) 79 cb JNS rel8 Jump short if not sign (SF=0) 75 cb JNZ rel8 Jump short if not zero (ZF=0) 70 cb JO rel8 Jump short if overflow (OF=1) 7A cb JP rel8 Jump short if parity (PF=1) 7A cb JPE rel8 Jump short if parity even (PF=1) 7B cb JPO rel8 Jump short if parity odd (PF=0) 78 cb JS rel8 Jump short if sign (SF=1) 74 cb JZ rel8 Jump short if zero (ZF = 1) 0F 87 cw/cd JA rel16/32 Jump near if above (CF=0 and ZF=0) 0F 83 cw/cd JAE rel16/32 Jump near if above or equal (CF=0) 0F 82 cw/cd JB rel16/32 Jump near if below (CF=1) 0F 86 cw/cd JBE rel16/32 Jump near if below or equal (CF=1 or ZF=1) 0F 82 cw/cd JC rel16/32 Jump near if carry (CF=1) 0F 84 cw/cd JE rel16/32 Jump near if equal (ZF=1) 0F 84 cw/cd JZ rel16/32 Jump near if 0 (ZF=1) 0F 8F cw/cd JG rel16/32 Jump near if greater (ZF=0 and SF=OF) 0F 8D cw/cd JGE rel16/32 Jump near if greater or equal (SF=OF) 0F 8C cw/cd JL rel16/32 Jump near if less (SF<>OF) 0F 8E cw/cd JLE rel16/32 Jump near if less or equal (ZF=1 or SF<>OF) 0F 86 cw/cd JNA rel16/32 Jump near if not above (CF=1 or ZF=1) 0F 82 cw/cd JNAE rel16/32 Jump near if not above or equal (CF=1) 0F 83 cw/cd JNB rel16/32 Jump near if not below (CF=0) 0F 87 cw/cd JNBE rel16/32 Jump near if not below or equal (CF=0 and ZF=0) 0F 83 cw/cd JNC rel16/32 Jump near if not carry (CF=0) 0F 85 cw/cd JNE rel16/32 Jump near if not equal (ZF=0) 0F 8E cw/cd JNG rel16/32 Jump near if not greater (ZF=1 or SF<>OF) 0F 8C cw/cd JNGE rel16/32 Jump near if not greater or equal (SF<>OF) 0F 8D cw/cd JNL rel16/32 Jump near if not less (SF=OF) 0F 8F cw/cd JNLE rel16/32 Jump near if not less or equal (ZF=0 and SF=OF) 0F 81 cw/cd JNO rel16/32 Jump near if not overflow (OF=0) 0F 8B cw/cd JNP rel16/32 Jump near if not parity (PF=0) 0F 89 cw/cd JNS rel16/32 Jump near if not sign (SF=0) 0F 85 cw/cd JNZ rel16/32 Jump near if not zero (ZF=0) 0F 80 cw/cd JO rel16/32 Jump near if overflow (OF=1) 0F 8A cw/cd JP rel16/32 Jump near if parity (PF=1) 0F 8A cw/cd JPE rel16/32 Jump near if parity even (PF=1) 0F 8B cw/cd JPO rel16/32 Jump near if parity odd (PF=0) 0F 88 cw/cd JS rel16/32 Jump near if sign (SF=1) 0F 84 cw/cd JZ rel16/32 Jump near if 0 (ZF=1) |
