lesson7.s

这个是AVR关中定时器与中断方面的程序

	.module lesson7.c
	.area data(ram, con, rel)
_num::
	.blkb 1
	.area idata
	.byte 0
	.area data(ram, con, rel)
	.dbfile I:\学习\单片机编程\AVR\十天学~1\第七集\lesson7\chengxu\MIAO\lesson7.c
	.dbsym e num _num c
	.area vector(rom, abs)
	.org 32
	jmp _miao
	.area data(ram, con, rel)
	.dbfile I:\学习\单片机编程\AVR\十天学~1\第七集\lesson7\chengxu\MIAO\lesson7.c
	.area code(ram, con, rel)
	.dbfile I:\学习\单片机编程\AVR\十天学~1\第七集\lesson7\chengxu\MIAO\lesson7.c
	.area lit(rom, con, rel)
_table::
	.word 63
	.word 6
	.word 91
	.word 79
	.word 102
	.word 109
	.word 125
	.word 7
	.word 127
	.word 111
	.word 119
	.word 124
	.word 57
	.word 94
	.word 121
	.word 113
	.dbsym e table _table A[32:16]kI
	.area text(rom, con, rel)
	.dbfile I:\学习\单片机编程\AVR\十天学~1\第七集\lesson7\chengxu\MIAO\lesson7.c
	.dbfunc e delay _delay fV
;              i -> R20,R21
;              j -> R22,R23
;             ms -> R16,R17
	.even
_delay::
	xcall push_gset2
	.dbline -1
	.dbline 12
; #include <iom16v.h>
; #include <macros.h>
; #define  uchar unsigned char
; #define  uint  unsigned int
; uchar num=0;
; #pragma interrupt_handler miao:9
; #pragma data:code 
; const  table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d, 0x07,
; 		           0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
; 
; void delay(uint ms)
; {
	.dbline 14
;         uint i,j;
; 	for(i=0;i<ms;i++)
	clr R20
	clr R21
	xjmp L5
L2:
	.dbline 15
; 	   {
	.dbline 16
	clr R22
	clr R23
	xjmp L9
L6:
	.dbline 16
L7:
	.dbline 16
	subi R22,255  ; offset = 1
	sbci R23,255
L9:
	.dbline 16
	cpi R22,117
	ldi R30,4
	cpc R23,R30
	brlo L6
	.dbline 17
L3:
	.dbline 14
	subi R20,255  ; offset = 1
	sbci R21,255
L5:
	.dbline 14
	cp R20,R16
	cpc R21,R17
	brlo L2
	.dbline -2
L1:
	xcall pop_gset2
	.dbline 0 ; func end
	ret
	.dbsym r i 20 i
	.dbsym r j 22 i
	.dbsym r ms 16 i
	.dbend
	.dbfunc e show _show fV
;              k -> R20
;              j -> R22
	.even
_show::
	xcall push_gset2
	mov R20,R18
	mov R22,R16
	.dbline -1
	.dbline 20
; 	   for(j=0;j<1141;j++);
;        }
; }
; void show(uchar j,uchar k)
; {
	.dbline 21
;         PORTA|=BIT(3);
	sbi 0x1b,3
	.dbline 22
; 	PORTB=table[j];
	ldi R24,2
	mul R24,R22
	movw R30,R0
	ldi R24,<_table
	ldi R25,>_table
	add R30,R24
	adc R31,R25
	lpm R0,Z+
	lpm R1,Z
	movw R30,R0
	out 0x18,R30
	.dbline 23
; 	PORTA&=~BIT(3);
	cbi 0x1b,3
	.dbline 25
; 	
; 	PORTB=0XFF;
	ldi R24,255
	out 0x18,R24
	.dbline 26
; 	PORTB&=~BIT(k);
	ldi R16,1
	mov R17,R20
	xcall lsl8
	mov R2,R16
	com R2
	in R3,0x18
	and R3,R2
	out 0x18,R3
	.dbline 27
; 	PORTA|=BIT(4);
	sbi 0x1b,4
	.dbline 28
; 	PORTA&=~BIT(4);
	cbi 0x1b,4
	.dbline 29
; 	delay(1);
	ldi R16,1
	ldi R17,0
	xcall _delay
	.dbline -2
L10:
	xcall pop_gset2
	.dbline 0 ; func end
	ret
	.dbsym r k 20 c
	.dbsym r j 22 c
	.dbend
	.dbfunc e miao _miao fV
	.even
_miao::
	st -y,R2
	st -y,R24
	st -y,R25
	in R2,0x3f
	st -y,R2
	.dbline -1
	.dbline 32
; }
; void miao()
; {
	.dbline 33
;     if(num==60)
	lds R24,_num
	cpi R24,60
	brne L12
	.dbline 34
; 	   num=0;
	clr R2
	sts _num,R2
L12:
	.dbline 35
; 	 num++;
	lds R24,_num
	subi R24,255    ; addi 1
	sts _num,R24
	.dbline 36
; 	TCNT1H=0X85;
	ldi R24,133
	out 0x2d,R24
	.dbline 37
; 	TCNT1L=0XED;  
	ldi R24,237
	out 0x2c,R24
	.dbline -2
L11:
	ld R2,y+
	out 0x3f,R2
	ld R25,y+
	ld R24,y+
	ld R2,y+
	.dbline 0 ; func end
	reti
	.dbend
	.dbfunc e main _main fV
	.even
_main::
	.dbline -1
	.dbline 40
; }
; void main()
; {
	.dbline 41
;     DDRB=0XFF;
	ldi R24,255
	out 0x17,R24
	.dbline 42
; 	DDRA|=0X18;
	in R24,0x1a
	ori R24,24
	out 0x1a,R24
	.dbline 44
; 	
; 	TCCR1B=0X04;
	ldi R24,4
	out 0x2e,R24
	.dbline 45
; 	TCNT1H=0X85;
	ldi R24,133
	out 0x2d,R24
	.dbline 46
; 	TCNT1L=0XED;
	ldi R24,237
	out 0x2c,R24
	.dbline 47
; 	TIMSK|=BIT(2);
	in R24,0x39
	ori R24,4
	out 0x39,R24
	.dbline 48
; 	SREG|=BIT(7);
	bset 7
	xjmp L16
L15:
	.dbline 51
	.dbline 52
	clr R18
	ldi R17,10
	lds R16,_num
	xcall div8u
	xcall _show
	.dbline 53
	ldi R18,1
	ldi R17,10
	lds R16,_num
	xcall mod8u
	xcall _show
	.dbline 54
L16:
	.dbline 50
	xjmp L15
X0:
	.dbline -2
L14:
	.dbline 0 ; func end
	ret
	.dbend