test1.asm

自己写的汇编实验的源代码

;test1.asm
	.model small
	.stack
	.data
string1 db 'Input Number:0~9',0dh,0ah,'$'
string2 db 'Error!',0dh,0ah,'$'
	.code
	.startup
	mov dx,offset string1
	mov ah,9
	int 21h
input:mov ah,01h
	int 21h
	cmp al,30h
	jb error
	cmp al,39h
	ja error
	jmp ext
	mov ah,02h
	mov dl,al
	int 21h
error:mov dx,offset string2
	mov ah,9
	int 21h
	jmp input	
ext:	.exit 0
	end