.386
STACK SEGMENT USE16 STACK
	DB 200 DUP(0)
STACK ENDS
DATA SEGMENT USE16
TIPS DB 0AH,0DH,'Please Input CMOS Address:$'
DATA ENDS
CODE SEGMENT USE16
	ASSUME CS:CODE,DS:DATA,SS:STACK
BEGIN:
	MOV AX,DATA
	MOV DS,AX
	LEA DX,TIPS;输出提示信息
	MOV AH,9
	INT 21H
	MOV AH,1
	INT 21H;输入一个字符存入AL中
	SUB AL,30H;转换为数值
	OUT 70H,AL
	NOP
	IN  AL,71H
	MOV BL,AL
	MOV DL,0AH
	MOV AH,2
	INT 21H
	MOV DL,0DH
	MOV AH,2
	INT 21H
	SHR BL,4
	CMP BL,10
	JNB ADD371
	ADD BL,30H
	JMP PUT1
ADD371:
	ADD BL,37H
PUT1:
	MOV DL,BL
	MOV AH,2
	INT 21H

	AND AL,0FH
	CMP AL,10
	JNB ADD372
	ADD AL,30H
	JMP PUT2
ADD372:
	ADD AL,37H
PUT2:
	MOV DL,AL
	MOV AH,2
	INT 21H
	MOV AH,4CH
	INT 21H
CODE ENDS
END BEGIN