delay.s

ATmega16内部ADC的应用：ATmega16内部集成了8路10位逐次逼近型模数转换器

	.module delay.c
	.area text(rom, con, rel)
	.dbfile F:\radio\第十一篇\test-adc\delay.c
	.dbfunc e delay_1us _delay_1us fV
	.even
_delay_1us::
	.dbline -1
	.dbline 3
; /*时钟为8MHZ*/
; void delay_1us(void)
; {
	.dbline 4
;    asm("nop");
	nop
	.dbline -2
L1:
	.dbline 0 ; func end
	ret
	.dbend
	.dbfunc e delay_us _delay_us fV
;          itemp -> R20,R21
;         itimes -> R22,R23
	.even
_delay_us::
	xcall push_gset2
	movw R22,R16
	.dbline -1
	.dbline 7
; }
; void delay_us(unsigned int itimes)
; {
	.dbline 9
;    unsigned int itemp;
;    for (itemp=0;itemp<itimes;itemp++)
	clr R20
	clr R21
	xjmp L6
L3:
	.dbline 10
	.dbline 11
	xcall _delay_1us
	.dbline 12
L4:
	.dbline 9
	subi R20,255  ; offset = 1
	sbci R21,255
L6:
	.dbline 9
	cp R20,R22
	cpc R21,R23
	brlo L3
	.dbline -2
L2:
	xcall pop_gset2
	.dbline 0 ; func end
	ret
	.dbsym r itemp 20 i
	.dbsym r itimes 22 i
	.dbend
	.dbfunc e delay_1ms _delay_1ms fV
;          itemp -> R16,R17
	.even
_delay_1ms::
	.dbline -1
	.dbline 15
;       {
; 	     delay_1us();
; 	  }
; }
; void delay_1ms(void)
; {
	.dbline 17
	ldi R16,1
	ldi R17,0
	xjmp L11
L8:
	.dbline 17
L9:
	.dbline 17
	subi R16,255  ; offset = 1
	sbci R17,255
L11:
	.dbline 17
;    unsigned int itemp;
;    for(itemp=1;itemp<1142;itemp++);
	cpi R16,118
	ldi R30,4
	cpc R17,R30
	brlo L8
	.dbline -2
L7:
	.dbline 0 ; func end
	ret
	.dbsym r itemp 16 i
	.dbend
	.dbfunc e delay_ms _delay_ms fV
;          itemp -> R20,R21
;         itimes -> R22,R23
	.even
_delay_ms::
	xcall push_gset2
	movw R22,R16
	.dbline -1
	.dbline 20
; }
; void delay_ms(unsigned int itimes)
; {
	.dbline 22
;    unsigned int itemp;
;    for (itemp=0;itemp<itimes;itemp++)
	clr R20
	clr R21
	xjmp L16
L13:
	.dbline 23
	.dbline 24
	xcall _delay_1ms
	.dbline 25
L14:
	.dbline 22
	subi R20,255  ; offset = 1
	sbci R21,255
L16:
	.dbline 22
	cp R20,R22
	cpc R21,R23
	brlo L13
	.dbline -2
L12:
	xcall pop_gset2
	.dbline 0 ; func end
	ret
	.dbsym r itemp 20 i
	.dbsym r itimes 22 i
	.dbend