只要用D命令查看al的值,就可以了,后面出错是栈的问题,现在不用考虑
C:\DOCUME~1\ADMINI~1>debug
-a
0B71:0100 mov bx,1000
0B71:0103 mov ds,bx
0B71:0105 mov al,ff
0B71:0107 mov al,[0]
0B71:010A
-t
AX=0000 BX=1000 CX=0000 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000
DS=0B71 ES=0B71 SS=0B71 CS=0B71 IP=0103 NV UP EI PL NZ NA PO NC
0B71:0103 8EDB MOV DS,BX
-t
AX=0000 BX=1000 CX=0000 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000
DS=1000 ES=0B71 SS=0B71 CS=0B71 IP=0105 NV UP EI PL NZ NA PO NC
0B71:0105 B0FF MOV AL,FF
-t
AX=00FF BX=1000 CX=0000 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000
DS=1000 ES=0B71 SS=0B71 CS=0B71 IP=0107 NV UP EI PL NZ NA PO NC
0B71:0107 A00000 MOV AL,[0000] DS:0000=00
-t
AX=0000 BX=1000 CX=0000 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000
DS=1000 ES=0B71 SS=0B71 CS=0B71 IP=010A NV UP EI PL NZ NA PO NC |