单片机做频率计数码管的显示C语言程序

#include float time=0; float freq=0; unsigned char dsh=0; unsigned char dsz=0; unsigned char dsl=0; main() {EA=1; ET0=1; ET1=1; TMOD=0x061; TH0=-1000/256; TL0=-1000%256; TH1=0xfb; TL1=0xfb; TR0=1; TR1=1; while... #include
float time=0;
float freq=0;
unsigned char dsh=0;
unsigned char dsz=0;
unsigned char dsl=0;
main()
{EA=1;
ET0=1;
ET1=1;
TMOD=0x061;
TH0=-1000/256;
TL0=-1000%256;
TH1=0xfb;
TL1=0xfb;
TR0=1;
TR1=1;
while(1);

}

void freqint(void) interrupt 3 using 1
{time=time/5.0;
freq=1.0/time;
dsh=freq/100;
dsz=(unsigned char)freq%100/10;
dsl=(unsigned char)freq%10;
time=0;
}

void timeint(void) interrupt 1 using 1
{TH0=-1000/256;
TL0=-1000%256;
time=time+0.001;
}

但是这个程序还缺少数码管的显示程序：我用的是三位共阴数码管，P0为段码接口，P2是位码接口，敬请各位贤达之士帮我添加数码管的显示C程序啊........万分感谢啊！