I’m building a clock/ thermometer using an 8051. I have the code and it work fine, but I need more than one alarm and more than one output; for example this is what I need three different outputs, the first one for alarm 1 and 2, the second one for alarm 3 and 4, and the last one for the countdown (or an alarm by hours for example every 72 hours or 120 or 24). Like I said I’m a not good in programming that why I consider myself a beginner, but on the other hand I’m good with logic and gates so I create a circuit using a combination of OR, NAND, and XOR to make different alarms sound for each alarm. And it will make a mix once the countdown reach it reset.
Here is the code that I have, also I have schematics and diagram.
Thanks alot and I appreciate all the help.

// Program to make a digital clock with integrated Alarm and digital thermometer
#include<reg51.h>
#define port P1
#define adc_input P0
#define cont_port P3
#define dataport P2
#define m_sec 10
sbit rs = cont_port^0;
sbit rw = cont_port^1;
sbit en = cont_port^6;
sbit dig_hr1=port^0;
sbit dig_min1=port^1;
sbit start=port^2;
sbit am_pm=port^3;
sbit alarm_set=port^4;
sbit alarm=port^7;
sbit wr= P3^2;
sbit rd= P3^3;
sbit intr= P3^4;

int hr ,hr1=0,alarm_hr=0;
int min,min1=0,alarm_min=0;
int sec,sec1=0,dig_am_pm=0,alarm_am_pm=0;
int test_final=0,test_intermediate1[10],test_intermediate2[3]={0,0,0};

void delay(unsigned int msec) // Time dealy function
{
int i,j ;
for(i=0;i<msec;i++)
  for(j=0;j<1275;j++);
}

void lcd_cmd(unsigned char item)  //Function to send command to LCD           
{
dataport = item;
rs= 0;
rw=0;
en=1;
delay(1);
en=0;
return;
}

void lcd_data(unsigned char item) // Function to send data to LCD
{
dataport = item;
rs= 1;
rw=0;
en=1;
delay(1);
en=0;
return;
}

void lcd_data_string(unsigned char *str) // Function to send string to LCD
{
int i=0;
while(str[i]!='')
{
  lcd_data(str[i]);
  i++;
  delay(1);
}
return;
}

lcd_data_int(int time_val)  // Function to send number to LCD
{
int int_amt;
int_amt=time_val/10;
lcd_data(int_amt+48);
int_amt=time_val%10; 
lcd_data(int_amt+48);
}

void lcd(unsigned char str1[10])
{
lcd_cmd(0x38); 
lcd_cmd(0x0e); 
delay(1);
lcd_data_string(str1);
}

void shape()  // Function to create the shape of degree
{
lcd_cmd(64);
lcd_data(2);
lcd_data(5);
lcd_data(2);
lcd_data(0);
lcd_data(0);
lcd_data(0);
lcd_data(0);
lcd_data(0);
}

void convert()  // Function to convert the data of ADC
{
int s;
s=test_final/100;
test_final=test_final%100;
lcd_cmd(0xc9);
if(s!=0)
lcd_data(s+48);
else
lcd_cmd(0x06);
s=test_final/10;
test_final=test_final%10;
lcd_data(s+48);
lcd_data(test_final+48);
lcd_data(0);
lcd_data('C');
lcd_data(' ');
delay(2);
}

void set_hr1()  // Function to set set hours digit of clock
{
hr1++;
if(hr1>11)
hr1=0;
lcd_cmd(0xc3);
lcd_data_int(hr1);
lcd_data(':');
}

void set_min1()  // Function to set set minutes digit of clock
{
min1++;
if(min1>59)
min1=0;
lcd_cmd(0xc6);
lcd_data_int(min1);
}

void set_alarm_hr1() // Function to set set hours digit of alarm
{
alarm_hr++;
if(alarm_hr>11)
alarm_hr=0;
lcd_cmd(0xc3);
lcd_data_int(alarm_hr);
lcd_data(':');
}

void set_alarm_min1() // Function to set set minutes digit of clock
{
alarm_min++;
if(alarm_min>59)
alarm_min=0;
lcd_cmd(0xc6);
lcd_data_int(alarm_min);
}

void alarm_check()  // Function to check alarm
{
if(hr==alarm_hr)
{
  if(min==alarm_min)
  {
   if(dig_am_pm==alarm_am_pm)
   {
    alarm=1;
    lcd_cmd(0x8b);
    lcd("ALARM");
   }
  }
} 
}

void temp() // Function to calculate temperature
{
int i;
for(i=0;i<10;i++)
{
  delay(1);
  rd=1;
  wr=0;
  delay(1);
  wr=1;
  while(intr==1);
  rd=0;
  lcd_cmd(0x88);
  test_intermediate1[i]=adc_input/10;
  delay(1);
  intr=1;
}
for(i=0;i<10;i++)
test_intermediate2[0]=test_intermediate1[i]+test_intermediate2[0];

for(i=0;i<10;i++)
{
  delay(1);
  rd=1;
  wr=0;
  delay(1);
  wr=1;
  while(intr==1);
  rd=0;
  lcd_cmd(0x88);
  test_intermediate1[i]=adc_input/10;
  delay(1);
  intr=1;
}
for(i=0;i<10;i++)
test_intermediate2[1]=test_intermediate1[i]+test_intermediate2[1];

for(i=0;i<10;i++)
{
  delay(1);
  rd=1;
  wr=0;
  delay(1);
  wr=1;
  while(intr==1);
  rd=0;
  lcd_cmd(0x88);
  test_intermediate1[i]=adc_input/10;
  delay(1);
  intr=1;
}
for(i=0;i<10;i++)
test_intermediate2[2]=test_intermediate1[i]+test_intermediate2[2];

test_intermediate2[0]=test_intermediate2[0]/3;
test_intermediate2[1]=test_intermediate2[1]/3;
test_intermediate2[2]=test_intermediate2[2]/3;
test_final=test_intermediate2[0]+test_intermediate2[1]+test_intermediate2[2];
shape();
convert();
}

void main()
{
int k;
start=1;
dig_hr1=1;
dig_min1=1;
alarm_set=1;
alarm=0;
lcd_cmd(0x83);
lcd("SET ALARM");
lcd_cmd(0xc3);
lcd_data_int(hr1);
lcd_data(':');
lcd_data_int(min1);
while(alarm_set==0)
{
  delay(10);
  if(dig_hr1==0)
  set_alarm_hr1();
  if(dig_min1==0)
  set_alarm_min1();
}

if(am_pm==0)
{
  lcd_cmd(0xc8);
  lcd_data_string("am");
  alarm_am_pm=0;
}

if(am_pm==1)
{
  lcd_cmd(0xc8);
  lcd_data_string("pm");
  alarm_am_pm=1;
}
delay(200);
lcd_cmd(0x01);
lcd_cmd(0x83);
lcd("SET TIMING");
lcd_cmd(0xc3);
lcd_data_int(hr1);
lcd_data(':');
lcd_data_int(min1);
while(start==0)
{
  delay(10);
  if(dig_hr1==0)
  set_hr1();
  if(dig_min1==0)
  set_min1(); 
}

if(am_pm==0)
{
  lcd_cmd(0xc8);
  lcd_data_string("am");
  dig_am_pm=0;
}

if(am_pm==1)
{
  lcd_cmd(0xc8);
  lcd_data_string("pm");
  dig_am_pm=1;
}
delay(200);
lcd_cmd(0x01);
while(1)
{
  for(k=0;k<2;k++)
  {
   for(hr=hr1;hr<12;hr++)
   {
    for(min=min1;min<60;min++)
    {
     for(sec=0;sec<60;sec++)
     {
      lcd_cmd(0x81);
      delay(1);
      lcd_data_int(hr);
      lcd_data(':');
      lcd_data_int(min);
      lcd_data(':');
      lcd_data_int(sec);
      if(dig_am_pm==0)
      {
       lcd("am");
      }
      else
      {
       lcd("pm");
      }
      alarm_check();
      lcd_cmd(0xc3); 
      delay(2);
      lcd_data_string("TEMP:");
      temp();
      lcd_data_string("    ");
     }
    }
   min1=0;
   }
  if(dig_am_pm==0)
  dig_am_pm=1;
  else
  dig_am_pm=0;
  hr1=0;
  }
}
}