3_1_1.asm

华工电信系汇编习题的编程实现

stack segment stack 'stack'
      dw 32 dup(?)
stack ends

data segment 
     W1 dw 1010H
     W2 dw 2134H
     W3 dw 3011H
     W4 dw ?   
data ends

code segment 
begin proc far
      assume ss:stack,cs:code,ds:data
      push ds
      sub ax,ax
      push ax
      mov ax,data
      mov ds,ax

      mov ax,W1       ;ax 1471
      add ax,W2       ;ax 1010
      add ax, 0028H   ;ax 3144
      sub ax,W3       ;ax 316C
      mov W4,ax       ;ax 015B  
                      ;result right
      ret
begin   endp
code    ends
      end begin