?? lesson3_1.s
字號:
.module lesson3_1.c
.area text(rom, con, rel)
.dbfile I:\AVR視頻教程\視頻教程\lesson3\lesson3_1\lesson3_1.c
.dbfunc e delay _delay fV
; i -> R20,R21
; j -> R22,R23
; ms -> R16,R17
.even
_delay::
xcall push_gset2
.dbline -1
.dbline 6
; #include <iom16v.h>
; #include <macros.h>
; #define uchar unsigned char
; #define uint unsigned int
; void delay(uint ms)
; {
.dbline 8
; uint i,j;
; for(i=0;i<ms;i++)
clr R20
clr R21
xjmp L5
L2:
.dbline 9
; {
.dbline 10
clr R22
clr R23
xjmp L9
L6:
.dbline 10
L7:
.dbline 10
subi R22,255 ; offset = 1
sbci R23,255
L9:
.dbline 10
cpi R22,117
ldi R30,4
cpc R23,R30
brlo L6
.dbline 11
L3:
.dbline 8
subi R20,255 ; offset = 1
sbci R21,255
L5:
.dbline 8
cp R20,R16
cpc R21,R17
brlo L2
.dbline -2
.dbline 12
; for(j=0;j<1141;j++);
; }
; }
L1:
xcall pop_gset2
.dbline 0 ; func end
ret
.dbsym r i 20 i
.dbsym r j 22 i
.dbsym r ms 16 i
.dbend
.dbfunc e main _main fV
; k -> R20
.even
_main::
.dbline -1
.dbline 14
; void main()
; {
.dbline 16
; uchar k;
; DDRA|=BIT(2);
sbi 0x1a,2
.dbline 17
; PORTA|=BIT(2);
sbi 0x1b,2
.dbline 19
;
; DDRB=0XFF;
ldi R24,255
out 0x17,R24
.dbline 20
; PORTB=0XFF;
out 0x18,R24
xjmp L12
L11:
.dbline 22
; while(1)
; {
.dbline 23
; for(k=0;k<8;k++)
clr R20
xjmp L17
L14:
.dbline 24
.dbline 25
ldi R16,1
mov R17,R20
xcall lsl8
mov R2,R16
com R2
in R3,0x18
and R3,R2
out 0x18,R3
.dbline 26
ldi R16,500
ldi R17,1
xcall _delay
.dbline 28
ldi R16,1
mov R17,R20
xcall lsl8
in R2,0x18
or R2,R16
out 0x18,R2
.dbline 29
ldi R16,500
ldi R17,1
xcall _delay
.dbline 30
L15:
.dbline 23
inc R20
L17:
.dbline 23
cpi R20,8
brlo L14
.dbline 31
L12:
.dbline 21
xjmp L11
X0:
.dbline -2
.dbline 32
; {
; PORTB&=~BIT(k);
; delay(500);
;
; PORTB|=BIT(k);
; delay(500);
; }
; }
; }
L10:
.dbline 0 ; func end
ret
.dbsym r k 20 c
.dbend
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