#include

#define uchar unsigned char

#define uint unsigned int

sbit qingling=P1^0;

sbit tiaofen=P1^1;

sbit tiaoshi=P1^2;

sbit sounder=P1^3;

uint a,b;

uchar hour,minu,sec,

hour0,minu0,sec0,

hour1,minu1,sec1;

h1,h2,m1,m2,s1,s2,

k,s;

uchar code select[]={0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe};

uchar code table[]= {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};

void keyscan();

void init();

void delay(int z);

void display(uchar,uchar,uchar);

void sounde();

void main()

{

init();

while(1)

{

while(TR1)

{

keyscan();

while(s==1)

{

keyscan();

display(hour1,minu1,sec1);

}

display(hour0,minu0,sec0);

while(k)

{

display(hour,minu,sec);

}

}

}

}

void init()

{

a=0;

b=0;

k=0;

s=0;

hour0=0;

minu0=0;

sec0=0;

hour=0;

minu=0;

sec=0;

hour1=0;

minu1=0;

sec1=0;

TMOD=0x11;

TH0=(65536-5000)/256;

TL0=(65536-5000)%256;

TH1=(65536-50000)/256;

TL1=(65536-50000)%256;

EA=1;

EX0=1;

EX1=1;

ET0=1;

ET1=1;

IT0=1;

IT1=1;

PX0=1;

PX1=1;

TR0=0;

TR1=1;

}

void timer0_int() interrupt 1

{

TH0=(65536-5000)/256;

TL0=(65536-5000)%256;

a++;

if(a==2)

{

a=0;

sec++;

if(sec==100)

{

sec=0;

minu++;

if(minu==60)

{

minu=0;

hour++;

if(hour==60)

{

hour=0;

}

}

}

}

}

void ex0_int() interrupt 0

{

k++;

if(k==3)

k=0;

if(k==1)

{

TR0=~TR0;

if(TR0==1)

{

hour=0;

minu=0;

sec=0;

}

}

if(k==2)

{

TR0=~TR0;

}

}

void ex1_int() interrupt 2

{

s++;

if(s==3)

s=0;

}

void timer1_int() interrupt 3

{

TH1=(65536-50000)/256;

TL1=(65536-50000)%256;

if(s==2)

{

if(hour1==hour0 && minu0==minu1)

sounde();

}

b++;

if(b==20)

{

b=0;

sec0++;

if(sec0==60)

{

sec0=0;

minu0++;

if(minu0==60)

{

minu0=0;

hour0++;

if(hour0==24)

hour0=0;

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