8086汇编指令大全控制转移类型

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本文详细解析了汇编语言中的控制转移指令，包括无条件转移、条件转移、循环控制及过程调用等，深入探讨了每种指令的功能、操作数、执行周期及字节数，为理解和应用汇编语言提供了全面的指导。

控制转移类型

类型	汇编指令格式	功能	操作数说明	时钟周期数	字节数
控制转移类	JMP SHORT op1 JMP NEAR PTR op1 JMP FAR PTR op1 JMP WORD PTR op1 JMP DWORD PTR op1	无条件转移	reg mem	15 15 15 11 18+EA 24+EA	2 3 5 2 2 ~ 4 2 ~ 4

	JZ/JE op1	ZF=1则转移		16/4	2
	JNZ/JNE op1	ZF=0则转移		16/4	2
	JS op1	SF=1则转移		16/4	2
	JNS op1	SF=0则转移		16/4	2
	JP/JPE op1	PF=1则转移		16/4	2
	JNP/JPO op1	PF=0则转移		16/4	2
	JC op1	CF=1则转移		16/4	2
	JNC op1	CF=0则转移		16/4	2
	JO op1	OF=1则转移		16/4	2
	JNO op1	OF=0则转移		16/4	2
	JB/JNAE op1	CF =1且 ZF=0则转移		16/4	2
	JNB/JAE op1	CF =0或 ZF=1则转移		16/4	2
	JBE/JNA op1	CF =1或 ZF=1则转移		16/4	2
	JNBE/JA op1	CF =0且 ZF=0则转移		16/4	2
	JL/JNGE op1	SF⊕OF＝1则转移		16/4	2
	JNL/JGE op1	SF⊕OF＝0则转移		16/4	2
	JLE/JNG op1	SF⊕OF＝1或 ZF=1则转移		16/4	2
	JNLE/JG op1	SF⊕OF＝0且 ZF=0则转移		16/4	2
	JCXZ op1	(CX) = 0 则转移		18/6	2
	LOOP op1	(CX) ≠ 0 则循环		17/5	2
	LOOPZ/LOOPE op1	(CX) ≠ 0且 ZF=1则循环		18/6	2
	LOOPNZ/LOOPNE op1	(CX) ≠ 0且 ZF=0则循环		19/5	2
	CALL dst	段内直接：(SP) ← (SP)-2 ((SP)+1, (SP)) ← (IP) (IP) ← (IP) + D16 段内间接：(SP) ← (SP)-2 ((SP)+1, (SP)) ← (IP) (IP) ← EA 段间直接：(SP) ← (SP)-2 ((SP)+1, (SP)) ← (CS) (SP) ← (SP)-2 ((SP)+1, (SP)) ← (IP) (IP) ← 目的偏移地址 (CS) ← 目的段基址段间间接：(SP) ← (SP)-2 ((SP)+1, (SP)) ← (CS) (SP) ← (SP)-2 ((SP)+1, (SP)) ← (IP) (IP) ← (EA) (CS) ← (EA+2)	reg mem	19 16 21+EA 28 37+EA	3 2 2 ~ 4 5 2 ~ 4
	RET	段内：(IP) ← ((SP)+1, (SP)) (SP) ← (SP)+2 段间：(IP) ← ((SP)+1, (SP)) (SP) ← (SP)+2 (CS) ← ((SP)+1, (SP)) (SP) ← (SP)+2		16 24	1 1
	RET exp	段内：(IP) ← ((SP)+1, (SP)) (SP) ← (SP)+2 (SP) ← (SP)+D16 段间：(IP) ← ((SP)+1, (SP)) (SP) ← (SP)+2 (CS) ← ((SP)+1, (SP)) (SP) ← (SP)+2 (SP) ← (SP)+D16		20 23	3 3
	INT N INT	(SP) ← (SP)-2 ((SP)+1, (SP)) ← (FR) (SP) ← (SP)-2 ((SP)+1, (SP)) ← (CS) (SP) ← (SP)-2 ((SP)+1, (SP)) ← (IP) (IP) ← (type * 4) (CS) ← (type * 4+2)	N≠3 (N=3)	51 52	2 1
	INTO	若OF＝1，则 (SP) ← (SP)-2 ((SP)+1, (SP)) ← (FR) (SP) ← (SP)-2 ((SP)+1, (SP)) ← (CS) (SP) ← (SP)-2 ((SP)+1, (SP)) ← (IP) (IP) ← (10H) (CS) ← (12H)		53(OF=1) 4(OF=0)	1
	IRET	(IP) ← ((SP)+1, (SP)) (SP) ← (SP)+2 (CS) ← ((SP)+1, (SP)) (SP) ← (SP)+2 (FR) ← ((SP)+1, (SP)) (SP) ← (SP)+2		24	1