📄 counter.s
字号:
.module Counter.c
.area text(rom, con, rel)
.dbfile F:\Learn\AVR\Pro_Mega8\LED\Counter\Counter.c
.dbfunc e delay_1ms _delay_1ms fV
; i -> R16,R17
.even
_delay_1ms::
.dbline -1
.dbline 13
; /******************************************/
; //文件名：Counter.c
; //功能： 多个LED数码观的控制
; //作者: young
; //时间： 2006.10.1
; //目标MCU:ATmega8
; //晶振: 8MHZ
; /******************************************/
; #include <iom8v.h>
;
; //延时1MS
; void delay_1ms(void)
; {
.dbline 15
; unsigned int i;
; for(i=1;i<(unsigned int)(1144-2);i++)
ldi R16,1
ldi R17,0
rjmp L5
L2:
.dbline 16
L3:
.dbline 15
subi R16,255 ; offset = 1
sbci R17,255
L5:
.dbline 15
cpi R16,118
ldi R30,4
cpc R17,R30
brlo L2
.dbline -2
.dbline 17
; ;
; }
L1:
.dbline 0 ; func end
ret
.dbsym r i 16 i
.dbend
.dbfunc e delay_ms _delay_ms fV
; i -> R20,R21
; n -> R22,R23
.even
_delay_ms::
rcall push_gset2
movw R22,R16
.dbline -1
.dbline 21
;
; //延时nMS
; void delay_ms(unsigned int n)
; {
.dbline 22
; unsigned int i=0;
clr R20
clr R21
rjmp L8
L7:
.dbline 24
.dbline 25
rcall _delay_1ms
.dbline 26
subi R20,255 ; offset = 1
sbci R21,255
.dbline 27
L8:
.dbline 23
; while(i<n)
cp R20,R22
cpc R21,R23
brlo L7
.dbline -2
.dbline 28
; {
; delay_1ms();
; i++;
; }
; }
L6:
rcall pop_gset2
.dbline 0 ; func end
ret
.dbsym r i 20 i
.dbsym r n 22 i
.dbend
.area data(ram, con, rel)
.dbfile F:\Learn\AVR\Pro_Mega8\LED\Counter\Counter.c
L11:
.blkb 2
.area idata
.byte 63,6
.area data(ram, con, rel)
.dbfile F:\Learn\AVR\Pro_Mega8\LED\Counter\Counter.c
.blkb 2
.area idata
.byte 91,'O
.area data(ram, con, rel)
.dbfile F:\Learn\AVR\Pro_Mega8\LED\Counter\Counter.c
.blkb 2
.area idata
.byte 'f,'m
.area data(ram, con, rel)
.dbfile F:\Learn\AVR\Pro_Mega8\LED\Counter\Counter.c
.blkb 2
.area idata
.byte 125,7
.area data(ram, con, rel)
.dbfile F:\Learn\AVR\Pro_Mega8\LED\Counter\Counter.c
.blkb 2
.area idata
.byte 127,'o
.area data(ram, con, rel)
.dbfile F:\Learn\AVR\Pro_Mega8\LED\Counter\Counter.c
.area lit(rom, con, rel)
L12:
.byte 0,0
.byte 0,0
.area text(rom, con, rel)
.dbfile F:\Learn\AVR\Pro_Mega8\LED\Counter\Counter.c
.dbfunc e main _main fV
.dbsym s LedNum L11 A[10:10]c
; j -> R20
; CountNum -> y+0
; i -> R22
.even
_main::
sbiw R28,4
.dbline -1
.dbline 32
;
; //主函数，依次显示数字0~9
; void main()
; {
.dbline 37
; unsigned char i,j;
; static unsigned char LedNum[10]={0x3F, 0x06, 0x5B, 0x4F, 0x66,
; 0x6D, 0x7D, 0x07, 0x7F, 0x6F};
; //显示小数点要加0x80
; unsigned char CountNum[4]={0, 0, 0, 0}; //计数的百、十、个位和十分位
ldi R24,<L12
ldi R25,>L12
movw R30,R28
ldi R16,4
ldi R17,0
st -y,R31
st -y,R30
st -y,R25
st -y,R24
rcall asgncblk
.dbline 38
; DDRB=0xFF; //设置B口为输出模式
ldi R24,255
out 0x17,R24
.dbline 39
; PORTB=0xFF; //置高电平
out 0x18,R24
.dbline 40
; DDRC=0x0F;
ldi R24,15
out 0x14,R24
.dbline 41
; PORTC=0xFF;
ldi R24,255
out 0x15,R24
rjmp L14
L13:
.dbline 44
;
; while (1)
; {
.dbline 45
; i=0;
clr R22
.dbline 46
; for(j=0;j<100;j++) //依次显示1S"000.0"
clr R20
rjmp L19
L16:
.dbline 47
; {
.dbline 48
; i=++i%4;
mov R24,R22
subi R24,255 ; addi 1
ldi R17,4
mov R16,R24
rcall mod8u
mov R22,R16
.dbline 49
; PORTC&=~(1<<i);
ldi R16,1
mov R17,R22
rcall lsl8
mov R2,R16
com R2
in R3,0x15
and R3,R2
out 0x15,R3
.dbline 50
; if(2==i)
cpi R22,2
brne L20
.dbline 51
; PORTB=LedNum[0]+0x80;
lds R24,L11
subi R24,128 ; addi 128
out 0x18,R24
rjmp L21
L20:
.dbline 53
; else
; PORTB=LedNum[0];
lds R2,L11
out 0x18,R2
L21:
.dbline 54
ldi R16,10
ldi R17,0
rcall _delay_ms
.dbline 55
in R24,0x15
ori R24,255
out 0x15,R24
.dbline 56
L17:
.dbline 46
inc R20
L19:
.dbline 46
cpi R20,100
brlo L16
.dbline 58
; delay_ms(10);
; PORTC|=0xFF;
; }
;
; CountNum[0]=CountNum[1]=CountNum[2]=CountNum[3]=0;
clr R2
std y+3,R2
std y+2,R2
std y+1,R2
std y+0,R2
rjmp L26
L25:
.dbline 60
; while(1)
; {
.dbline 61
; if(CountNum[3]++==9)
ldd R2,y+3
mov R24,R2
subi R24,255 ; addi 1
std y+3,R24
mov R24,R2
cpi R24,9
brne L28
.dbline 62
; {
.dbline 63
; CountNum[3]=0;
clr R2
std y+3,R2
.dbline 64
; if(9==CountNum[2]++)
ldd R2,y+2
mov R24,R2
subi R24,255 ; addi 1
std y+2,R24
mov R24,R2
cpi R24,9
brne L32
.dbline 65
; {
.dbline 66
; CountNum[2]=0;
clr R2
std y+2,R2
.dbline 67
; if(9==CountNum[1]++)
ldd R2,y+1
mov R24,R2
subi R24,255 ; addi 1
std y+1,R24
mov R24,R2
cpi R24,9
brne L36
.dbline 68
; {
.dbline 69
; CountNum[1]=0;
clr R2
std y+1,R2
.dbline 70
; CountNum[0]++;
ldd R24,y+0
subi R24,255 ; addi 1
std y+0,R24
.dbline 71
; }
L36:
.dbline 72
; }
L32:
.dbline 73
; }
L28:
.dbline 75
;
; for(i=0;i<4;i++)
clr R22
rjmp L43
L40:
.dbline 76
; {
.dbline 77
; PORTC&=~(1<<i);
ldi R16,1
mov R17,R22
rcall lsl8
mov R2,R16
com R2
in R3,0x15
and R3,R2
out 0x15,R3
.dbline 78
; if(2==i)
cpi R22,2
brne L44
.dbline 79
; PORTB=LedNum[CountNum[i]]+0x80;
movw R24,R28
mov R30,R22
clr R31
add R30,R24
adc R31,R25
ldd R30,z+0
clr R31
ldi R24,<L11
ldi R25,>L11
add R30,R24
adc R31,R25
ldd R24,z+0
subi R24,128 ; addi 128
out 0x18,R24
rjmp L45
L44:
.dbline 81
; else
; PORTB=LedNum[CountNum[i]];
movw R24,R28
mov R30,R22
clr R31
add R30,R24
adc R31,R25
ldd R30,z+0
clr R31
ldi R24,<L11
ldi R25,>L11
add R30,R24
adc R31,R25
ldd R2,z+0
out 0x18,R2
L45:
.dbline 82
ldi R16,10
ldi R17,0
rcall _delay_ms
.dbline 83
in R24,0x15
ori R24,255
out 0x15,R24
.dbline 84
L41:
.dbline 75
inc R22
L43:
.dbline 75
cpi R22,4
brsh X1
rjmp L40
X1:
.dbline 86
; delay_ms(10);
; PORTC|=0xFF;
; }
;
; if(CountNum[0]==9 && CountNum[1]==9 && CountNum[2]==9 && CountNum[3]==9)
ldd R24,y+0
cpi R24,9
brne L46
ldd R24,y+1
cpi R24,9
brne L46
ldd R24,y+2
cpi R24,9
brne L46
ldd R24,y+3
cpi R24,9
brne L46
.dbline 87
; break;
rjmp L27
L46:
.dbline 88
L26:
.dbline 59
rjmp L25
L27:
.dbline 89
L14:
.dbline 43
rjmp L13
X0:
.dbline -2
.dbline 90
; }
; }
; }
L10:
adiw R28,4
.dbline 0 ; func end
ret
.dbsym r j 20 c
.dbsym l CountNum 0 A[4:4]c
.dbsym r i 22 c
.dbend
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