chp2_9-1.asm

关于8086汇编的一些作业程序

stack segment stack'stack'
      dw 32 dup(?)
stack ends
data segment
W 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,1235H
      MOV BX,2589H
      MOV DX,3046H
      MOV CL,4
      SHL AX,CL
      MOV AL,0
      SHL BL,CL
      ROL DX,CL
      AND DL,0FH
      OR AL,BL
      OR AL,DL
      MOV W,AX
      ret
begin endp
code ends
     end begin