delay.s

这是一个电池放电器

	.module delay.c
	.area text(rom, con, rel)
	.dbfile E:\刻录的\电子技术\项目\电池放电器\软件V2.0\delay.c
	.dbfunc e delay_1ms _delay_1ms fV
;              i -> R16,R17
	.even
_delay_1ms::
	.dbline -1
	.dbline 9
; /*-----------------------------------------------------------------------
; 延时函数
; 系统时钟：8M
; -----------------------------------------------------------------------*/
; #include <iom8v.h>
; #include <macros.h>
; #include "discharge.h"
; void delay_1ms(void)//1ms延时函数
; {
	.dbline 11
;   unsigned int i;
;   asm("nop");
	nop
	.dbline 12
;   for (i=0;i<1139;i++)
	clr R16
	clr R17
	rjmp L5
L2:
	.dbline 13
	.dbline 14
L3:
	.dbline 12
	subi R16,255  ; offset = 1
	sbci R17,255
L5:
	.dbline 12
	cpi R16,115
	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::
	rcall push_gset2
	movw R22,R16
	.dbline -1
	.dbline 18
;   {  
;   } 
; }
; 
; void delay_nms(unsigned int n)//延时n毫秒
; {
	.dbline 20
;   unsigned int i;
;   for (i=0;i<n;i++)//执行n次1毫秒延时
	clr R20
	clr R21
	rjmp L10
L7:
	.dbline 21
	rcall _delay_1ms
L8:
	.dbline 20
	subi R20,255  ; offset = 1
	sbci R21,255
L10:
	.dbline 20
	cp R20,R22
	cpc R21,R23
	brlo L7
	.dbline -2
L6:
	rcall pop_gset2
	.dbline 0 ; func end
	ret
	.dbsym r i 20 i
	.dbsym r n 22 i
	.dbend
	.dbfunc e delay_nus _delay_nus fV
;              i -> R20,R21
;              n -> R16,R17
	.even
_delay_nus::
	rcall push_gset1
	.dbline -1
	.dbline 25
;   delay_1ms(); 
; }
; 
; void delay_nus(unsigned int n)//延时N微秒,N>=5  晶振:8MHz
; {
	.dbline 27
;   unsigned int i;
;   for (i=5;i<n;i++)
	ldi R20,5
	ldi R21,0
	rjmp L15
L12:
	.dbline 28
	.dbline 29
	nop
	.dbline 30
	nop
	.dbline 31
L13:
	.dbline 27
	subi R20,255  ; offset = 1
	sbci R21,255
L15:
	.dbline 27
	cp R20,R16
	cpc R21,R17
	brlo L12
	.dbline -2
L11:
	rcall pop_gset1
	.dbline 0 ; func end
	ret
	.dbsym r i 20 i
	.dbsym r n 16 i
	.dbend