prog6_7.asm

汇编语言-王爽 源代码 加 卜艳萍版源代码

stack  segment  stack
       dw  64  dup(?)
stack  ends
data  segment
       a  db  ?
       b  db  ?
data  ends
code  segment
      assume  cs:code,ds:data,ss:stack
start:mov  ax,data
      mov  ds,ax
      mov  al,a
      cmp  b,al
      jge  bga
      mov  dl,'a'
      mov  bl,'b'
      jmp  disp
bga:  mov  dl,'b'
      mov  bl,'a'
disp: mov  ah,2
      int  21h
      mov  dl,'>'
      int  21h
      mov  dl,bl
      int  21h
      mov  ah,4ch
      int  21h
code  ends
      end  start