jk6-4.asm

微机原理课程 所有讲义PPT 课程全实验（包括代码程序设计实验报告） 习题及答案

SERIAL	EQU 2000H
CONTROL	EQU 2AH
SWH_PL	EQU 02H
SWH_TXD	EQU 01H
DIG_MR	EQU 08H
DIG_TXD	EQU 04H
LED_MR	EQU 20H
LED_TXD	EQU 10H
COM_TXD	EQU 40H
	ORG	0000H
	LJMP	DIGOUT
	ORG	0100H
DIGOUT:	MOV	DPTR,#SERIAL
	MOV	A,#CONTROL
	ORL	A,#DIG_TXD
	MOVX	@DPTR,A
	MOV	DPTR,#DIGTAB
	MOV	A,40H
	MOVC	A,@A+DPTR
	MOV	SBUF,A
	JNB	TI,$
	CLR	TI
	MOV	A,41H
	MOVC	A,@A+DPTR
	MOV	SBUF,A
	JNB	TI,$
	CLR	TI

DIGTAB:	DB	03H,9fH,25H,0B0H,99H,92H,82H,0F8H
	DB	80H,90H,88H,83H,0C6H,0A1H,86H,8EH
	DB	0BFH,89H,8CH,0C1H,0CEH,91,00H,0FFH
	END