#include

typedefunsignedcharuchar;

typedefunsignedintuint;

typedefunsignedlongulong;

sbitADDR0=P1^0;

sbitADDR1=P1^1;

sbitADDR2=P1^2;

sbitADDR3=P1^3;

sbitENLED=P1^4;

ucharimage[8]={

0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF

};

ucharT0RH,T0RL;

uintrate;

voidLEDScan();

voidresetImage();

voidconfigTmr0(uintms1,ucharms2);

voidmain(){

EA=1;

ADDR3=0;

ENLED=0;

configTmr0(50,2);

while(1);

}

voidconfigTmr0(uintms1,ucharms2){

ulongtmp;

rate=ms1/ms2;

tmp=11059200/12;//定時(shí)器計(jì)數(shù)頻率

tmp=(tmp*ms2)/1000;//計(jì)算所需的計(jì)數(shù)值

tmp=65536-tmp;//計(jì)算定時(shí)器重載值

tmp=tmp+12;//補(bǔ)償中斷響應(yīng)延時(shí)造成的誤差

T0RH=tmp>>8;//定時(shí)器重載值拆分為高低字節(jié)

T0RL=tmp;

TMOD&=0xF0;

TMOD|=0x01;

TH0=T0RH;

TL0=T0RL;

ET0=1;

TR0=1;

}

#defineLEDScan();{\

staticuchari=0;\

P0=0xFF;\

P1=(P1&0xF8)|i;\

P0=image[i];\

i=++i&0x07;\

}

voidresetImage(){

staticucharx=0,y=0;

image[y]^=(0x80>>x);

if(x==3&&y==4){

x=0;

y=0;

}

elseif(y<=x+1&&x+y<7){

x++;

}

elseif(x+y>=7&&y

y++;

}

elseif(y>=x&&x+y>7){

x--;

}

else

y--;

}

voidinterruptTmr0()interrupt1{

staticuinti=0;

TH0=T0RH;

TL0=T0RL;

LEDScan();

if(i==rate){

resetImage();

i=0;

}

else

i++;

}

雙向流水：

#include

typedefunsignedcharuchar;

typedefunsignedintuint;

typedefunsignedlongulong;

sbitADDR0=P1^0;

sbitADDR1=P1^1;

sbitADDR2=P1^2;

sbitADDR3=P1^3;

sbitENLED=P1^4;

ucharimage[8]={

0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF

};

ucharT0RH,T0RL;

uintrate;

voidLEDScan();

voidresetImage();

voidconfigTmr0(uintms1,ucharms2);

voidmain(){

EA=1;

ADDR3=0;

ENLED=0;

configTmr0(50,2);

while(1);

}

voidconfigTmr0(uintms1,ucharms2){

ulongtmp;

rate=ms1/ms2;

tmp=11059200/12;//定時(shí)器計(jì)數(shù)頻率

tmp=(tmp*ms2)/1000;//計(jì)算所需的計(jì)數(shù)值

tmp=65536-tmp;//計(jì)算定時(shí)器重載值

tmp=tmp+12;//補(bǔ)償中斷響應(yīng)延時(shí)造成的誤差

T0RH=tmp>>8;//定時(shí)器重載值拆分為高低字節(jié)

T0RL=tmp;

TMOD&=0xF0;

TMOD|=0x01;

TH0=T0RH;

TL0=T0RL;

ET0=1;

TR0=1;

}

#defineLEDScan();{\

staticuchari=0;\

P0=0xFF;\

P1=(P1&0xF8)|i;\

P0=image[i];\

i=++i&0x07;\

}

voidresetImage(){

staticucharx=0,y=0;

image[y]^=(0x80>>x);

image[7-y]^=(0x01<

if(x==3&&y==4){

x = 0;?