汇编语言课程设计
choice proc near mov ah,1 int 21h cmp al,31h je next1 cmp al,32h je next2 cmp al,33h je next3 cmp al,34h je next4 jmp back next1:
call creath next2:
call entry next3: mov ah,9
lea dx,huanhang int 21h call read next4:
mov ax,4c00h int 21h back: mov ah,9 lea dx,chose int 21h call me ret
choice endp
creath proc near mov ah,3ch
lea dx,pathname mov cx,0 int 21h jc error1 mov handle,ax jmp exit error1: mov ah,9
lea dx,str_error1 int 21h jmp exit1 exit: mov ah,9
lea dx,str_ok1 int 21h exit1:
call choice creath endp
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汇编语言课程设计
entry proc near mov ah,9
lea dx,entery int 21h
lea dx,buffer1 mov ah,0ah int 21h sub ch,ch
mov cl,buffer1+1 add dx,2 call writh ret
entry endp
writh proc near mov ah,3dh
lea dx,pathname mov al,1 int 21h jc error2 mov handle,ax mov ah,40h
lea dx,buffer1+2 mov bx,handle mov cx,60 int 21h jc error3 mov ah,3eh mov bx,handle int 21h jc error4 jmp back1 error2: mov ah,9
lea dx,str_error2 int 21h jmp exit2 error3: mov ah,9
lea dx,str_error4 int 21h jmp exit2 error4: mov ah,9
lea dx,str_error5 int 21h jmp exit2 back1: mov ah,9
lea dx,str_ok2 int 21h exit2:
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汇编语言课程设计
call choice writh endp read proc near mov ah,3dh
lea dx,pathname mov al,0 int 21h jc error5 mov handle,ax mov ah,3fh lea dx,buffer2 mov bx,handle mov cx,60 int 21h jc error6 mov ah,9
lea dx,buffer2 int 21h jc error6 mov ah,3eh mov bx,handle int 21h jc error7 jmp back2 error5: mov ah,9
lea dx,str_error2 int 21h jmp exit3 error6: mov ah,9
lea dx,str_error4 int 21h jmp exit3 error7: mov ah,9
lea dx,str_error5 int 21h jmp exit3 back2: mov ah,9
lea dx,str_ok3 int 21h exit3:
call choice read endp code ends end start end main
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