triangularwave.s

来自「ATMEL AVR 单片机开发套件和大量C和ASM代码工程」· S 代码 · 共 90 行

	.module TriangularWave.c
	.area text
	.dbfile E:\grc\licc\例子10.4.2\TriangularWave.c
	.dbfunc s delay _delay fI
	.even
_delay::
	.dbline 6{
; #include <io8515.h>             
; #include <math.h>               
; #define uchar unsigned char
; #define uint unsigned int
; void delay(void)          
; {
	.dbline 7}
; }
L1:
	ret
	.dbfunc s main _main fI
;              c -> R20
	.even
_main::
	.dbline 9{
; void main(void)                 
; {
	.dbline 11
;  uchar c;
;  DDRA=0xff;                      
	ldi R24,255
	out 0x1a,R24
	.dbline 12
;  for (;;)
L3:
	.dbline 13
;    {
	.dbline 14
;     for (c=0x00;c<0xff;c++)    
	clr R20
	rjmp L10
L7:
	.dbline 15
	.dbline 16
	out 0x1b,R20
	.dbline 17
	rcall _delay
	.dbline 18
L8:
	.dbline 14
	inc R20
L10:
	.dbline 14
	cpi R20,255
	brlo L7
	.dbline 19
;       {
;        PORTA=c;                 
;        delay();
;       } 
;     for (c=0xff;c>0x00;c--)    
	ldi R20,255
	rjmp L14
L11:
	.dbline 20
	.dbline 21
	out 0x1b,R20
	.dbline 22
	rcall _delay
	.dbline 23
L12:
	.dbline 19
	dec R20
L14:
	.dbline 19
	clr R2
	cp R2,R20
	brlo L11
	.dbline 24
;      {
;       PORTA=c;                 
;       delay();
;       }
;   }                              
	.dbline 12
	.dbline 12
	rjmp L3
X0:
L2:
	ret
	.dbline 13}
	.dbsym r c 20 c