📄 delay.s
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.module delay.c
.area text(rom, con, rel)
.dbfile E:\abol\file\EMD\programme\EM-PB-2129\delay.c
.dbfunc e del _del fV
; time -> R16,R17
.even
_del::
.dbline -1
.dbline 14
;
; /* 文件名称:main.c 主函数 */
; /* 编译:ICC-AVR application builder */
;
;
;
; #include <iot13v.h>
; #include <macros.h>
; #include "delay.h"
; #define xtal 9.8
;
; /* 微秒级延时程序 */
; void del(int time)
; {
L2:
.dbline 16
; do
; {
.dbline 17
; time--;
subi R16,1
sbci R17,0
.dbline 18
; }
L3:
.dbline 19
; while (time>1);
ldi R24,1
ldi R25,0
cp R24,R16
cpc R25,R17
brlt L2
.dbline -2
L1:
.dbline 0 ; func end
ret
.dbsym r time 16 I
.dbend
.dbfunc e delay_1ms _delay_1ms fV
; i1 -> R16,R17
.even
_delay_1ms::
.dbline -1
.dbline 24
; }
;
; /* 毫秒级延时程序 */
; void delay_1ms(void)
; { unsigned int i1;
.dbline 25
; for(i1=1;i1<(unsigned int)(xtal*143-2);i1++)
ldi R16,1
ldi R17,0
rjmp L9
L6:
.dbline 26
L7:
.dbline 25
subi R16,255 ; offset = 1
sbci R17,255
L9:
.dbline 25
cpi R16,119
ldi R30,5
cpc R17,R30
brlo L6
.dbline -2
L5:
.dbline 0 ; func end
ret
.dbsym r i1 16 i
.dbend
.dbfunc e delay _delay fV
; i2 -> R20,R21
; n -> R22,R23
.even
_delay::
rcall push_gset2
mov R22,R16
mov R23,R17
.dbline -1
.dbline 30
; ;
; }
;
; void delay(unsigned int n)
; {
.dbline 31
; unsigned int i2=0;
clr R20
clr R21
rjmp L12
L11:
.dbline 33
.dbline 33
rcall _delay_1ms
.dbline 34
subi R20,255 ; offset = 1
sbci R21,255
.dbline 34
wdr
.dbline 35
L12:
.dbline 32
; while(i2<n)
cp R20,R22
cpc R21,R23
brlo L11
.dbline -2
L10:
rcall pop_gset2
.dbline 0 ; func end
ret
.dbsym r i2 20 i
.dbsym r n 22 i
.dbend
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