fangbo.s

方波产生程序 megal128 iccavr开发平台

	.module fangbo.c
	.area text(rom, con, rel)
	.dbfile E:\ATMEGA~1\方波产生程序\fangbo.c
	.dbfunc e delay_1ms _delay_1ms fV
;              i -> R16,R17
	.even
_delay_1ms::
	.dbline -1
	.dbline 3
; #include "iom128v.h"
; void delay_1ms()
; {unsigned int i;
	.dbline 4
	clr R16
	clr R17
	xjmp L5
L2:
	.dbline 4
L3:
	.dbline 4
	subi R16,255  ; offset = 1
	sbci R17,255
L5:
	.dbline 4
; for(i=0;i<1140;i++);
	cpi R16,116
	ldi R30,4
	cpc R17,R30
	brlo L2
	.dbline -2
L1:
	.dbline 0 ; func end
	ret
	.dbsym r i 16 i
	.dbend
	.dbfunc e delay_nms _delay_nms fV
;              i -> R20,R21
;              n -> R22,R23
	.even
_delay_nms::
	xcall push_gset2
	movw R22,R16
	.dbline -1
	.dbline 7
; }
; void delay_nms(unsigned int n)
; {unsigned int i;
	.dbline 8
; for(i=0;i<n;i++)
	clr R20
	clr R21
	xjmp L10
L7:
	.dbline 9
	xcall _delay_1ms
L8:
	.dbline 8
	subi R20,255  ; offset = 1
	sbci R21,255
L10:
	.dbline 8
	cp R20,R22
	cpc R21,R23
	brlo L7
	.dbline -2
L6:
	xcall pop_gset2
	.dbline 0 ; func end
	ret
	.dbsym r i 20 i
	.dbsym r n 22 i
	.dbend
	.dbfunc e main _main fV
;              i -> R20,R21
	.even
_main::
	.dbline -1
	.dbline 12
; delay_1ms();
; }
; void main()
; {unsigned int i;
	.dbline 13
; DDRB=0xff;
	ldi R24,255
	out 0x17,R24
	.dbline 14
; PORTB=0XFF;
	out 0x18,R24
	.dbline 15
; for(i=0;i;i++)
	clr R20
	clr R21
	xjmp L15
L12:
	.dbline 16
	.dbline 16
	in R2,0x18
	com R2
	out 0x18,R2
	.dbline 17
	ldi R16,1000
	ldi R17,3
	xcall _delay_nms
	.dbline 18
L13:
	.dbline 15
	subi R20,255  ; offset = 1
	sbci R21,255
L15:
	.dbline 15
	cpi R20,0
	cpc R20,R21
	brne L12
X0:
	.dbline -2
L11:
	.dbline 0 ; func end
	ret
	.dbsym r i 20 i
	.dbend