汇编语言实验指导书

mov lea call lea call mov xor mov mov lea call lea call mov xor mov mov lea call mov int call ret start endp disp

proc mov int ret disp endp inpt

proc mov int ret inpt endp copy

proc mov lea mov int lea mov jc mov mov

es,ax dx,ask1 disp dx,sfile inpt

cl,sfile+1 ch,ch si,cx

[si+sfile+2],0 dx,ask2 disp dx,dfile inpt

cl,dfile+1 ch,ch si,cx

[si+dfile+2],0 dx,note disp ah,7 21h copy

ah,9 21h

ah,0ah 21h

ah,3ch dx,dfile+2 cx,20h 21h dx,er1 bx,ax err bufr,ax ah,3dh

mov lea int lea mov jc r_w：

mov mov lea int lea jc or je mov lea xchg int lea jc xchg jmp exit：

mov int lea jc xchg mov int lea jc ret err：

mov int xchg mov int call ret copy endp code

ends end

al,0

dx,sfile+2 21h dx,er2 bx,ax err cx,10h ah,3fh dx,sfile+2 21h dx,er3 err ax,ax exit ah,40h dx,sfile+2 bufr,bx 21h dx,er4 err bufr,bx r_w ah,3eh 21h dx,er5 err bufr,bx ah,3eh 21h dx,er6 err ah,3eh 21h bufr,bx ah,3eh 21h disp

start