main.s

ATMEGA16控制跑马灯程序,PA口依次循环点亮各自的LED

	.module main.c
	.area text(rom, con, rel)
	.dbfile F:\ziliao\新建文件夹\horselight_icc\cfile\main.c
	.dbfunc e main _main fV
;              i -> R20
	.even
_main::
	.dbline -1
	.dbline 5
; #define MAIN_C
; #include "includes.h"
; 
; void main(void)
; {
	.dbline 7
;     unsigned char i;
;     DDRA  = 0xff;  //端口设置:PA设置为推挽1输出
	ldi R24,255
	out 0x1a,R24
	.dbline 8
;     PORTA = 0xff;
	out 0x1b,R24
	.dbline 9
;     PORTA = 0x00;   //PORTA初始值为0，熄灭所有的LED
	clr R2
	out 0x1b,R2
	.dbline 10
;     delay_nms(100);
	ldi R16,100
	ldi R17,0
	xcall _delay_nms
	xjmp L3
L2:
	.dbline 12
;     while(1)
;     {
	.dbline 13
;         for(i=0;i<9;i++)
	clr R20
	xjmp L8
L5:
	.dbline 14
;         {
	.dbline 15
;             horse(i);
	mov R16,R20
	xcall _horse
	.dbline 16
;             delay_nms(200);
	ldi R16,200
	ldi R17,0
	xcall _delay_nms
	.dbline 17
;         }
L6:
	.dbline 13
	inc R20
L8:
	.dbline 13
	cpi R20,9
	brlo L5
X0:
	.dbline 18
;         for(i=7;i>0;i--)
	ldi R20,7
	xjmp L12
L9:
	.dbline 19
;         {
	.dbline 20
;             horse(i);
	mov R16,R20
	xcall _horse
	.dbline 21
;             delay_nms(200);
	ldi R16,200
	ldi R17,0
	xcall _delay_nms
	.dbline 22
;         }
L10:
	.dbline 18
	dec R20
L12:
	.dbline 18
	ldi R24,0
	cp R24,R20
	brlo L9
X1:
	.dbline 23
;     }    
L3:
	.dbline 11
	xjmp L2
X2:
	.dbline -2
L1:
	.dbline 0 ; func end
	ret
	.dbsym r i 20 c
	.dbend
; }