自制四位数码管显示的数字钟c程序

#includestc90.h>
#define uchar unsigned char
uchar code shuzi[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xc0};//0 1 2 3 4 5 6 7 8 9 0
uchar code shuza[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0xc0};//0 1 2 3 4 5 0
uchar ss,dd,ff,gg,zz;
uchar qq,ww,ee,rr,tt;
uchar z,x,qw,qe,qr,as,fe;
sbit a=P2^0;//锁存器1
sbit b=P2^1;//锁存器2
sbit c=P2^2;//锁存器3
sbit d=P2^3;//锁存器4
sbit e=P2^4;//秒灯
sbit f=P2^5;//时间指示灯
sbit g=P2^6;//设置指示灯
sbit h=P2^7;//....
sbit i=P1^0;//时间设置按键
sbit j=P1^1;//返回
sbit k=P1^2;//加
sbit l=P1^3;//减
sbit m=P1^4;//定时设置
sbit y=P1^5;//启动定时
void ys();

void main()
{
EA=1; //打开总中断
TH0=(65535-50000)/256; //定时器复初值
TL0=(65535-50000)%256;
ET0=1; //
TR0=1; //启动定时器
P0=0xc0;
P2=0xff;
P2=0xd0;
while(1)
{f=0;g=1;
if(i==0)//设置时间 判断
{g=0;f=1;
while(1)
{if(j==0){break;}
if(i==0){ys();if(i==0){while(i==0){if(i==1){x++;break;}}}}
if(x==5){x=1;}if(x==0){x=1;}

if(x==1)
{if(k==0){ys();if(k==0){ss++;if(k==0)if(ss==10){ss=0;}}} if(l==0){ys();if(l==0){if(ss==0){ss=10;}ss--;}}
a=1;P0=0x7f;P0=shuzi[ss];a=0; }

if(x==2)
{if(k==0){ys();if(k==0){dd++;if(k==0)if(dd==6){dd=0;}}} if(l==0){ys();if(l==0){if(dd==0){dd=6;}dd--;}}
b=1;P0=0x7f;P0=shuza[dd];b=0; }

if(x==3)
{if(k==0){ys();if(k==0){ff++;if(k==0)if(ff==10){ff=0;}}} if(l==0){ys();if(l==0){if(ff==0){ff=10;}ff--;}}
c=1;P0=0x7f;P0=shuzi[ff];c=0; }

if(x==4)
{if(k==0){ys();if(k==0){gg++;if(k==0)if(gg==3){gg=0;}}} if(l==0){ys();if(l==0){if(gg==0){gg=3;}gg--;}}
d=1;P0=0x7f;P0=shuzi[gg];d=0; }

}
} //设置时间完

if(m==0)//定时 判断
{g=0;f=0;as=1;
while(1)
{if(j==0){as=0;break;}
if(m==0){ys();if(m==0){while(m==0){if(m==1){x++;break;}}}}
if(x==5){x=1;}if(x==0){x=1;}

if(x==1)
{if(k==0){ys();if(k==0){qq++;if(k==0)if(qq==10){qq=0;}}} if(l==0){ys();if(l==0){if(qq==0){qq=10;}qq--;}}a=1;P0=0x7f;P0=shuzi[qq];a=0; }

if(x==2)
{if(k==0){ys();if(k==0){ww++;if(k==0)if(ww==6){ww=0;}}} if(l==0){ys();if(l==0){if(ww==0){ww=6;}ww--;}} b=1;P0=0x7f;P0=shuza[ww];b=0; }

if(x==3)
{if(k==0){ys();if(k==0){ee++;if(k==0)if(ee==10){ee=0;}}} if(l==0){ys();if(l==0){if(ee==0){ee=10;}ee--;}}c=1;P0=0x7f;P0=shuzi[ee];c=0; }

if(x==4)
{if(k==0){ys();if(k==0){rr++;if(k==0)if(rr==3){rr=0;}}} if(l==0){ys();if(l==0){if(rr==0){rr=3;}rr--;}}d=1;P0=0x7f;P0=shuzi[rr];d=0;}

}
} //定时时间完
if(y==0)//启动定时功能
{while(1){if(y==1){h=!h;if(h==0){fe=1;}if(h==1){fe=0;}break;}}}
if(fe==1)
{if(gg==rr){if(ff==ee){if(dd==ww){if(ss==qq){ g=0;f=0;;ys();g=1;f=1;ys(); }}}}}

}
}
void zhongduan() interrupt 1 //中断函
{ TH0=(65535-50000)/256; //定时器复初值
TL0=(65535-50000)%256;
z++;
if(z==80)
{z=0;
e=!e;
zz++;
if(zz==120){zz=0;ss++;}
if(ss==10){ss=0;dd++;}
if(dd==6){dd=0;ff++;}
if(ff==10){ff=0;gg++;}

if(gg==2) {if(ff>=4){ff=0;gg=0;}}
if(gg>=3) {gg=0;}
if(rr==2) {if(ee>=4){ee=0;rr=0;}}
if(rr>=3) {rr=0;}

if(as==0)
{P0=shuzi[ss];a=1;a=0;
P0=shuza[dd];b=1;b=0;
P0=shuzi[ff];c=1;c=0;
P0=shuzi[gg];d=1;d=0;
}
if(as==1)
{ a=1;P0=shuzi[qq];a=0;
b=1;P0=shuza[ww];b=0;
c=1;P0=shuzi[ee];c=0;
d=1;P0=shuzi[rr];d=0;
}
}

}
void ys()
{for(qw=255;qw>0;qw--)
for(qe=255;qe>0;qe--);
for(qw=255;qw>0;qw--)
for(qe=50;qe>0;qe--);
}