汇编-js符号位SF=1则跳转(负数则跳转)

 

 

.386  
.model flat,stdcall 
option casemap:none
.stack 4096

Include Irvine32.inc
includelib Irvine32.lib

ExitProcess PROTO,dwExitCode:DWORD  
 
.data       
 
.code   
main PROC   
    
    or al,10000000b  ;让符号位SF=1
    js  t1        ;js符号位SF=1则跳转(负数则跳转)
    mov ebx,02h
    jmp t2
    t1:
    mov eax ,02h
    t2:


    INVOKE ExitProcess,0  
main ENDP   
END main