1~9自增程序2.txt

来自「关于单片机中流水线处理,红绿灯转化等实验」· 文本 代码 · 共 52 行

	org	0000H
	jmp	MAIN
;*******************************************************
	org	0030H	;start program from 0030H
MAIN:
	mov	p0,#0FFH
	mov	p1,#0FFH
	mov	p2,#0FFH
	mov	p3,#0FFH

	mov	30H,#00H	;intialize the variable
DISP_LOOP:
	mov	a,30H
	mov	dptr,#TABLE
	movc	a,@a+dptr
	
	mov	p0,a	;display the numbet
	mov	p2,#11111011B
	call	delay

	mov	a,30H
	inc	30H
	cjne	a,#09,DISP_LOOP

	jmp	$

	ret
;**************************************************************
;Dealy for a interval
DELAY:
	mov	R5,#06H
DELAY_2:
	mov	R6,#0FFH
DELAY_1:
	mov	R7,#0FFH
DELAY_0:
	nop
	nop
	djnz	R7,DELAY_0

	djnz	R6,DELAY_1

	djnz	R5,DELAY_2

	ret
;*******************************************************************
TABLE: DB 0D0H, 0F9H, 0A4H ,0B0H, 99H, 92H, 82H, 0F8H, 80H, 90H
;*******************************************************************

	END