sound.s

ATMEL AVR 单片机开发套件和大量C和ASM代码工程

	.module sound.c
	.area text
	.dbfile E:\grc\licc\例子10.3.6\sound.c
	.dbfunc s delay _delay fI
;              i -> R20
;              j -> R22
;              t -> R16
	.even
_delay::
	rcall push_gset2
	.dbline 5{
; #include <io8515.h>                /*预处理命令 */
; #define uchar unsigned char
; #define uint unsigned int
; void delay(uchar t)
; {
	.dbline 7
;  uchar i,j;
;   for (i=0;i<t;i++)
	clr R20
	rjmp L5
L2:
	.dbline 8
	ldi R22,1
	rjmp L9
L6:
	.dbline 8
L7:
	.dbline 8
	inc R22
L9:
	.dbline 8
	cpi R22,150
	brlo L6
L3:
	.dbline 7
	inc R20
L5:
	.dbline 7
	cp R20,R16
	brlo L2
	.dbline 9}
;      for(j=1;j<150;j++);
; }
L1:
	rcall pop_gset2
	ret
	.dbsym r i 20 c
	.dbsym r j 22 c
	.dbsym r t 16 c
	.dbfunc s sound_pc0 _sound_pc0 fI
;              i -> R20,R21
;              t -> R22
	.even
_sound_pc0::
	rcall push_gset2
	mov R22,R16
	.dbline 11{
; void sound_pc0(uchar t)
; {
	.dbline 13
;  uint i;
;  DDRC=0xff;
	ldi R24,255
	out 0x14,R24
	.dbline 14
;  PORTC=0xff;
	out 0x15,R24
	.dbline 15
;  for (i=0;i<350-t*t;i++)           
	clr R20
	clr R21
	rjmp L14
L11:
	.dbline 16
	.dbline 17
	ldi R24,1
	in R2,0x15
	eor R2,R24
	out 0x15,R2
	.dbline 18
	mov R16,R22
	rcall _delay
	.dbline 19
L12:
	.dbline 15
	subi R20,255  ; offset = 1
	sbci R21,255
L14:
	.dbline 15
	mov R18,R22
	clr R19
	mov R16,R22
	clr R17
	rcall mpy16s
	ldi R24,94
	ldi R25,1
	sub R24,R16
	sbc R25,R17
	cp R20,R24
	cpc R21,R25
	brlo L11
	.dbline 20}
;     {
;      PORTC^=0x01;
;      delay(t);
;     }
; }
L10:
	rcall pop_gset2
	ret
	.dbsym r i 20 i
	.dbsym r t 22 c
	.dbfunc s main _main fI
;             dt -> R20
	.even
_main::
	.dbline 22{
; void main (void)                    
; {
	.dbline 24
;  uchar dt;
;  for(;;)
L16:
	.dbline 25
;     {
	.dbline 26
;      for(dt=1;dt<14;dt++)               
	ldi R20,1
	rjmp L23
L20:
	.dbline 27
	mov R16,R20
	rcall _sound_pc0
L21:
	.dbline 26
	inc R20
L23:
	.dbline 26
	cpi R20,14
	brlo L20
	.dbline 28
;          sound_pc0(dt);
;      }
	.dbline 24
	.dbline 24
	rjmp L16
X0:
L15:
	ret
	.dbline 25}
	.dbsym r dt 20 c