addr.asm

关于单片机一个小程序

					
			address_data	equ	30h			
					
					
			org		0000h
			ajmp		start
			org		0003h
			reti
			org		000bh
			reti
			org		0013h
			reti
			org		001bh
			reti
			org		0023h
			reti		
					
		start:	mov	p1,#0
			mov	p3,#0ffh
			acall	d1s
			cpl	p1.1
			acall	d1s
			cpl	p1.1
			acall	d1s
			cpl	p1.1
			acall	d1s
			cpl	p1.1
			acall	d1s
			cpl	p1.1
			acall	d1s
			setb	p1.1
			sjmp	main
			
		main:	acall	select_address
			;mov	a,#00001100b
			;rr	a
			;rr	a
			;mov	address_data,a
			acall	d10ms
			acall	d10ms
			acall	d10ms
			acall	d10ms
			acall	d10ms
			acall	d10ms	
			acall	address_service_select
			sjmp	main				
d1ms:			mov		r6,#200
			nop
d1_0:			nop
			nop
			nop
			nop
			djnz		r6,d1_0
			nop
			ret
d10ms:			mov		r1,#200
			nop
d10_0:			nop
			acall		d1ms
			djnz		r1,d10_0
			nop
			ret
delay_3s_4s:		mov		r2,#30
d1s_0:			nop
			acall		d10ms
			djnz		r2,d1s_0
			nop
			ret
d1s:			mov		r7,#35
	d1s_1:		nop
			acall		d10ms
			djnz		r7,d1s_1
			ret						
			;-------------------
select_address:		acall		d1ms
			mov		a,p3
			anl		a,#3ch	;00111100b
			rr		a
			rr		a
			anl		a,#0fh
;----------------------------------------------------------			
			mov		address_data,a
no_address_ret:		ret			;14--15
			;-------------------
address_service_select:	mov		a,address_data
			anl		a,#0fh
			mov		b,#2
			mul		ab
			mov		dptr,#address_nomber_service
			jmp		@a+dptr
address_nomber_service:	sjmp		address_mode_00
			sjmp		address_mode_01
			sjmp		address_mode_02
			sjmp		address_mode_03
			sjmp		address_mode_04
			sjmp		address_mode_05
			sjmp		address_mode_06
			sjmp		address_mode_07
			sjmp		address_mode_08
			sjmp		address_mode_09
			sjmp		address_mode_10
			sjmp		address_mode_11
			sjmp		address_mode_12
			sjmp		address_mode_13
			sjmp		address_mode_14
			sjmp		address_mode_15
address_ret:		ret

address_mode_00:	nop
			nop
			;--模式00--			0000
			;				1表示向上,0表示向下
			nop
			sjmp		address_ret
address_mode_01:	nop
			nop
			;--模式01--			1000
			;硬件检测(输入/输出)	
			nop
			sjmp		address_ret
address_mode_02:	nop
			nop
			;--模式02--			0100
			;	
			nop
			sjmp		address_ret
address_mode_03:	nop
			nop
			;--模式03--			1100
			;设定波特率4800	
			nop
			sjmp		address_ret
address_mode_04:	nop
			nop
			;--模式04--			0010
			;	
			nop
			sjmp		address_ret
address_mode_05:	nop
			nop
			;--模式05--			1010
			;设定波特率2400
			nop
			sjmp		address_ret
address_mode_06:	nop
			nop
			;--模式06--			0110
			;
			nop
			sjmp		address_ret
address_mode_07:	nop
			nop
			;--模式07--			1110
			;8路输入,对应路输出
			nop
			sjmp		address_ret
address_mode_08:	nop
			nop
			;--模式08--			0001
			;
			nop
			sjmp		address_ret
address_mode_09:	nop
			nop
			;--模式09--			1001
			;切换到--音乐模式
			nop
			sjmp		address_ret
address_mode_10:	nop
			nop
			;--模式10--			0101
			nop
			sjmp		address_ret
address_mode_11:	nop
			nop
			;--模式11--			1101
			;系统热复位初始化所有EEPROM,RAM
			nop
			sjmp		address_ret
address_mode_12:	nop
			nop
			;--模式12--			0011
			nop
			sjmp		address_ret
address_mode_13:	nop
			nop
			;--模式13--			1011
			;设定波特率9600
			nop
			sjmp		address_ret																		
address_mode_14:	nop
			nop
			;--模式14--			0111
			nop
			sjmp		address_ret
address_mode_15:	nop
			nop
			;--模式15--			1111
			;正常工作模式			无拔码按下,1表示向上,0表示向下
			nop
			sjmp		address_ret
			end