| 本帖最后由 箜白 于 2014-3-3 20:20 编辑 
 
 内存地址 机器码 汇编指令 执行后情况 1000:0 b8 00 00 mov ax,0 ax=0 ip指向1000:3 1000:3 e8 01 00 call s pop ip ip指向1000:7 1000:6 40 inc ax 1000:7 58 s:pop ax ax=6 -r AX=0000 BX=0000 CX=000D DX=0000 SP=0000 BP=0000 SI=0000 DI=0000 DS=0C3F ES=0C3F SS=0C4F CS=0C4F IP=0000 NV UP EI PL NZ NA PO NC 0C4F:0000 B80000 MOV AX,0000 -t AX=0000 BX=0000 CX=000D DX=0000 SP=0000 BP=0000 SI=0000 DI=0000 DS=0C3F ES=0C3F SS=0C4F CS=0C4F IP=0003 NV UP EI PL NZ NA PO NC 0C4F:0003 E80100 CALL 0007 -t AX=0000 BX=0000 CX=000D DX=0000 SP=FFFE BP=0000 SI=0000 DI=0000 DS=0C3F ES=0C3F SS=0C4F CS=0C4F IP=0007 NV UP EI PL NZ NA PO NC 0C4F:0007 58 POP AX -t AX=0006 BX=0000 CX=000D DX=0000 SP=0000 BP=0000 SI=0000 DI=0000 DS=0C3F ES=0C3F SS=0C4F CS=0C4F IP=0008 NV UP EI PL NZ NA PO NC 0C4F:0008 B8004C MOV AX,4C00 为什么“POP AX”执行后 AX = 0006? |