ex3-1.asm

一个基础汇编实例

data segment
buffer dw 0,1,-5,10,256,-128,-100,45,6
       dw 3,-15,-67,39,4,20,-1668,-32766
       dw 32765,-525,300
count equ ($-buffer)/2
max dw ?
data ends

stack segment stack 'stack'
    db 100 dup('s')
stack ends

code segment para 'code'
    assume cs:code,ds:data,ss:stack
sta  proc far
     push ds
     xor ax,ax
     push ax
     mov ax,data
     mov ds,ax
     lea si,buffer
     mov cx,count
     dec cx
     mov ax,[si]
chkmax:add si,2
     cmp [si],ax
     jle next
     mov ax,[si]
next:loop chkmax
     mov max,ax
     ret
sta  endp
code ends

     end sta