james2.asm

masm,debug,link还有上课时的源程序

data segment para

data ends

stack segment para stack 'stack'
        db 64 dup(?)
stack ends

code segment  public
        assume cs:code, ds:data,ss:stack,es:data
start:
        ;Begin
        mov ax,data
        mov ds,ax
        ;Add your code here
        mov ax,3a6dh
        
        mov cx,1fh
        again: shl ax,1
               jc point
               dec cx
               jnz again
               hlt
        point: add bx,1
               
               dec cx
               jnz again
               hlt











        ;Exit to DOS
        mov ah,4ch
        int 21h

code ends
        end start