unsigned long int time; // Time will from 0 to 65535
signed long int space; // Space will from -32768 to 32767

Type Name
char  time; 		// The variable 'time' is from 0 to 255

char i, j, k; // Declares that i, j and k are of type char.

PORTB  for registers
TimeMs for functions
value for RAM variables

char	w = 5, x = 9;

time = 123;

char A, B, C; // A, B and C are global variables, since they are outside
                       // Any function 

main ()
{
  A = 0;                             // Make A = 0
  Time ();                         // Call  Time function
   Wait ();                        // Call Wait function 
}

 Time ()
     {
     char J;                 // Create a variable called J.
                                 // Only Time () function can use it
     J = A;
     }

Wait ()
{
    char X;               // Create a variable called X.
                                // Only function  Wait () can use it
    X = A;
   X = J; // Error: The variable J does not exist for this function 
 }

float const pi = 3.14 ;

// Outputs an 8-bit code at Port D in the 16F877 MCU
#include <16F877A.h> 		// MCU header file

void main() 				// Main block start
{
output_D(255); 		// Switch on outputs
}

//Lesson1-EX1
// Outputs an 8-bit code at Port D in the 16F877 MCU
#include <16F877A.h>       // MCU header file

void main()             // Main block start
{
   While(true)
   {
      output_D(255);       // Switch on outputs
   }
}

/*Lesson1-EX2
Program function: Outputs an 8-bit variable
*************************************************/
#include <16F877A.h>

void main()
{
Int8 x; 			// Declare variable and type
x = 99; 		// Assign variable value
While(true)
{
output_D(x) ; // Display the value in binary
}
}

//Lesson1-EX3 Endless Loop
// Program function: Outputs variable count
#include <16F877A.h>

void main()
{
    int x; // Declare variable
   while(TRUE) // Loop endlessly
              { 
       output_D(x); // Display value
                   x ++ ; // Increment value
             }
}

//Lesson1-EX4 Tests an input
#include <16F877A.h>
void main()
{
   int x; 					// Declare variable
   output_D(0); 				// Clear all outputs

  while(1) 					// Loop always
    {
         x = input(PIN_C0); 			// Get input state
        if(x == 1)output_high(PIN_D0); 	// Change output
   }
}

// Lesson1-5 Input switch controls output flashing
#include <16F877A.h>
#use delay (clock = 4000000) 		// MCU clock = 4 MHz

void main()
{
   while(true)
     {
        while(input(PIN_C0)) 			// Repeat while switch open
         {
             output_high(PIN_D0);
            delay_ms(500); 			// Delay 0.5s
            output_low(PIN_D0);
           delay_ms(500); 			// Delay 0.5s
        }

      output_low(PIN_D0); 			// Switch off LED
    }
}

// Lesson1-EX6 Repeat loop a set number of times
#include <16F877A.h>
#use delay (clock = 4000000)

void main()
{
   int x;
   while(input(PIN_C0)) { } ; // Wait until switch closed

   for (x = 0; x < 5; x ++) 		// For loop conditions
      {
         output_high(PIN_D0); // Flash sequence
        delay_ms(500);
       output_low(PIN_D0);
      delay_ms(500);
     }

     while(TRUE); // Wait for reset
}