72.asm

汇编语言课后习题答案

;7_2.asm

宏定义:
wages      macro  rate,hour
           push ax
           push bx
           push cx
           mov  al,rate
           mov  cl,hour
           mul  cl
           mov  bx,ax
           mov  ax,hour
           mov  cl,10
           div  cl
           mov  cl,3
           mul  cl
           add  ax,bx
           mov  wag,ax
           pop  cx
           pop  bx
           pop  ax
           endm
宏调用:
wages      r1,42
宏展开:
1          push ax
1          push bx
1          push cx
1          mov  al,r1
1          mov  cl,42
1          mul  cl
1          mov  bx,ax
1          mov  ax,42
1          mov  cl,10
1          div  cl
1          mov  cl,3
1          mul  cl
1          add  ax,bx
1          mov  wag,ax
1          pop  cx
1          pop  bx
1          pop  ax