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跳轉(zhuǎn)指令分三類(lèi):
一、無(wú)條件跳轉(zhuǎn): JMP;
二、根據(jù) CX、ECX 寄存器的值跳轉(zhuǎn): JCXZ(CX 為 0 則跳轉(zhuǎn))、JECXZ(ECX 為 0 則跳轉(zhuǎn));
三、根據(jù) EFLAGS 寄存器的標(biāo)志位跳轉(zhuǎn), 這個(gè)太多了.

根據(jù)標(biāo)志位跳轉(zhuǎn)的指令:

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JE   ;等于則跳轉(zhuǎn)JNE  ;不等于則跳轉(zhuǎn)JZ   ;為 0 則跳轉(zhuǎn)JNZ  ;不為 0 則跳轉(zhuǎn)JS   ;為負(fù)則跳轉(zhuǎn)JNS  ;不為負(fù)則跳轉(zhuǎn)JC   ;進(jìn)位則跳轉(zhuǎn)JNC  ;不進(jìn)位則跳轉(zhuǎn)JO   ;溢出則跳轉(zhuǎn)JNO  ;不溢出則跳轉(zhuǎn)JA   ;無(wú)符號(hào)大于則跳轉(zhuǎn)JNA  ;無(wú)符號(hào)不大于則跳轉(zhuǎn)JAE  ;無(wú)符號(hào)大于等于則跳轉(zhuǎn)JNAE ;無(wú)符號(hào)不大于等于則跳轉(zhuǎn)JG   ;有符號(hào)大于則跳轉(zhuǎn)JNG  ;有符號(hào)不大于則跳轉(zhuǎn)JGE  ;有符號(hào)大于等于則跳轉(zhuǎn)JNGE ;有符號(hào)不大于等于則跳轉(zhuǎn)JB   ;無(wú)符號(hào)小于則跳轉(zhuǎn)JNB  ;無(wú)符號(hào)不小于則跳轉(zhuǎn)JBE  ;無(wú)符號(hào)小于等于則跳轉(zhuǎn)JNBE ;無(wú)符號(hào)不小于等于則跳轉(zhuǎn)JL   ;有符號(hào)小于則跳轉(zhuǎn)JNL  ;有符號(hào)不小于則跳轉(zhuǎn)JLE  ;有符號(hào)小于等于則跳轉(zhuǎn)JNLE ;有符號(hào)不小于等于則跳轉(zhuǎn)JP   ;奇偶位置位則跳轉(zhuǎn)JNP  ;奇偶位清除則跳轉(zhuǎn)JPE  ;奇偶位相等則跳轉(zhuǎn)JPO  ;奇偶位不等則跳轉(zhuǎn)

跳轉(zhuǎn)相關(guān)的標(biāo)志位:

11	10	9	8	7	6	5	4	3	2	1	0
OF	DF	IF	TF	SF	ZF		AF		PF		CF
溢 出				符 號(hào)	零	未 用	輔 助	未 用	奇 偶	未 用	進(jìn) 位

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JMP 測(cè)試

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; Test28_1.asm;.386.model flat, stdcallinclude    windows.incinclude    kernel32.incinclude    masm32.incinclude    debug.incincludelib kernel32.libincludelib masm32.libincludelib debug.lib.codemain proc    PrintText '1'    jmp @F    PrintText '2'    PrintText '3'@@: PrintText '4'    retmain endpend main;測(cè)試結(jié)果應(yīng)該是:;1;4;以下都應(yīng)該是這樣.

JE 測(cè)試

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; Test28_2.asm;.386.model flat, stdcallinclude    windows.incinclude    kernel32.incinclude    masm32.incinclude    debug.incincludelib kernel32.libincludelib masm32.libincludelib debug.lib.codemain proc    PrintText '1'    mov eax, 123    cmp eax, 123    je @F    PrintText '2'    PrintText '3'@@: PrintText '4'    retmain endpend main

JZ 測(cè)試

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; Test28_3.asm;.386.model flat, stdcallinclude    windows.incinclude    kernel32.incinclude    masm32.incinclude    debug.incincludelib kernel32.libincludelib masm32.libincludelib debug.lib.codemain proc    PrintText '1'    xor eax, eax    jz @F    PrintText '2'    PrintText '3'@@: PrintText '4'    retmain endpend main

JS 測(cè)試

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; Test28_4.asm;.386.model flat, stdcallinclude    windows.incinclude    kernel32.incinclude    masm32.incinclude    debug.incincludelib kernel32.libincludelib masm32.libincludelib debug.lib.codemain proc    PrintText '1'    xor eax, eax    dec eax    js @F    PrintText '2'    PrintText '3'@@: PrintText '4'    retmain endpend main

JC 測(cè)試

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; Test28_5.asm;.386.model flat, stdcallinclude    windows.incinclude    kernel32.incinclude    masm32.incinclude    debug.incincludelib kernel32.libincludelib masm32.libincludelib debug.lib.codemain proc    PrintText '1'    mov al, 0FFh    add al, 1    jc @F    PrintText '2'    PrintText '3'@@: PrintText '4'    retmain endpend main

JO 測(cè)試

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; Test28_6.asm;.386.model flat, stdcallinclude    windows.incinclude    kernel32.incinclude    masm32.incinclude    debug.incincludelib kernel32.libincludelib masm32.libincludelib debug.lib.codemain proc    PrintText '1'    mov al, -128    sub al, 1    jo @F    PrintText '2'    PrintText '3'@@: PrintText '4'    retmain endpend main

JA 測(cè)試

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; Test28_7.asm;.386.model flat, stdcallinclude    windows.incinclude    kernel32.incinclude    masm32.incinclude    debug.incincludelib kernel32.libincludelib masm32.libincludelib debug.lib.codemain proc    PrintText '1'    mov eax, 22    cmp eax, 11    ja @F    PrintText '2'    PrintText '3'@@: PrintText '4'    retmain endpend main

JG 測(cè)試

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; Test28_8.asm;.386.model flat, stdcallinclude    windows.incinclude    kernel32.incinclude    masm32.incinclude    debug.incincludelib kernel32.libincludelib masm32.libincludelib debug.lib.codemain proc    PrintText '1'    mov eax, 1    cmp eax, -1    jg @F    PrintText '2'    PrintText '3'@@: PrintText '4'    retmain endpend main

JP 測(cè)試

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; Test28_9.asm;.386.model flat, stdcallinclude    windows.incinclude    kernel32.incinclude    masm32.incinclude    debug.incincludelib kernel32.libincludelib masm32.libincludelib debug.lib.codemain proc    PrintText '1'    mov al, 00001110b    inc al    jp @F    PrintText '2'    PrintText '3'@@: PrintText '4'    retmain endpend main

JECXZ 測(cè)試

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; Test28_10.asm;.386.model flat, stdcallinclude    windows.incinclude    kernel32.incinclude    masm32.incinclude    debug.incincludelib kernel32.libincludelib masm32.libincludelib debug.lib.codemain proc    PrintText '1'    xor ecx, ecx    jecxz @F    PrintText '2'    PrintText '3'@@: PrintText '4'    retmain endpend main