test2.asm

自己写的汇编实验的源代码

;test2.asm
	.model small
	.stack
	.data
string1 db 'Input a number(0~5):',0dh,0ah,'$'
string2 db 'Result:',0dh,0ah,'$'
	.code
	.startup
first:	mov dx,offset string1
	mov ah,9
	int 21h
	mov ah,01h
	int 21h
	mov bl,al
	and bl,0fh
	mov ah,02h
	mov dl,0dh
	int 21h	
	mov ah,02h
	mov dl,0ah
	int 21h	
second:	mov dx,offset string1
	mov ah,9
	int 21h
	mov ah,01h
	int 21h
	and al,0fh
	add al,bl
	add al,30h
	;sub al,30h
        mov bl,al
	mov ah,02h
	mov dl,0dh
	int 21h	
	mov ah,02h
	mov dl,0ah
	int 21h	
result: mov dx,offset string2
	mov ah,9
	int 21h
	mov ah,02h
	mov dl,bl
	int 21h	
	.exit 0
	end