//PIC16F628A 
//Turns ON bottom left-hand LED (LED1)

void main (){                 //Start
CMCON=0x7;           // Turn comparators off andenable pins for I/O functions
TRISA=0;                   // Make all RA lines output
TRISB=0;                   //Make all RB lines output
PORTA=0x02;           // Reset the 4017
while(1){                     //Endless loop
PORTB=0x01;           // turn on first LED
}
}

void Init(void){
CMCON=0x7;           // Turn comparators off andenable pins for I/O functions
TRISA=0;                   // Make all RA lines output
TRISB=0;                   //Make all RB lines output
}

Init();

void Reset_4017(void){
PORTA.F1=1;           // Reset the 4017, RA1 Reset pin
PORTA.F1=0;
}

Reset_4017();

void Clk_4017(void){
PORTA.F0=1;           // Clock the 4017, RA0 Clock pin
PORTA.F0=0;
}

Clk_4017();

//PIC16F628A 
//Turns ON bottom left-hand LED (LED1)
void Init(void){
CMCON=0x7;           // Turn comparators off andenable pins for I/O functions
TRISA=0;                   // Make all RA lines output
TRISB=0;                   //Make all RB lines output
}

void Reset_4017(void){
PORTA.F1=1;           // Reset the 4017, RA1 Reset pin
PORTA.F1=0;
}

void main (){                 //Start
Init();
Reset_4017();

while(1){                     //Endless loop
PORTB=0x01;           // turn on first LED
}
}

int /* type */i /* identifier */;

int i;

int i;  // this is a comment
int j;

int i;
int j;

("[]","( )","{ }",",",";",":","*","=","#'   

char ch, str[] = "mikro";
 
int mat[3][4];       /* 3 x 4 matrix */
ch = str[3];         /* 4th element */

d = c * (a + b);     /* override normal precedence */
if (d == z) ++x;     /* essential with conditional statement */
func();              /* function call, no args */
void func2(int n);   /* function declaration with parameters */

if (d == z) {
 ++x;
 func();
}

if (statement)
 { ... };    /* illegal semicolon! */
else
 { ... };

void func(int n, float f, char ch);

func(i, j);                              /* call func with two args */
func((exp1, exp2), (exp3, exp4, exp5));  /* also calls func with two args! */

a + b;    /* Evaluate a + b, but discard value */
++a;      /* Side effect on a, but discard value of ++a */
;         /* Empty expression, or a null statement */

for (i = 0; i < n; i++);

start:  x = 0;
...
goto start;

char *char_ptr;  /* a pointer to char is declared */

i = *int_ptr;
a = b * 3.14;

int test[5] = { 1, 2, 3, 4, 5 };
int x = 5;

int a, b, c;
a = b + c;

;PIC16F84 and only F84 chip         
;Bottom left-hand LED flashes at 2Hz 

 
 Start   ORG 0x00
            BSF 03,5             ;Go to page1 for setting-up the ports
            MOVLW 00h       ;Put 00 into W             
            MOVWF 05h       ;Make all RA lines output        
            MOVWF 06h       ;Make all RB lines output
            BCF 03,5             ;Go to Page0 for programming
            MOVLW 02h        ;Put 02 into W to
            MOVWF 05h        ;    Reset the 4017
 
Flash   MOVLW 01h           ;Put 1 into W
            MOVWF 06h         ; and output to turn on LED
            CALL Delay          ;Call Delay
            MOVLW 00           ;Put 00 into W
            MOVWF 06h         ;To turn off LED
            CALL Delay          ;Call Delay
            GOTO Flash         ;Repeat cycle   
 
Delay    MOVLW 03
              MOVWF 1Ah
Delay1   DECFSZ 1Bh,1
              GOTO Delay1
              DECFSZ 1Ch,1
              GOTO Delay1
              DECFSZ 1Ah,1
              GOTO Delay1
              RETURN
 
              END

//PIC16F84 and only F84 chip
// Bottom left-hand LED flashes at 2Hz 
 
void main (){                           //Start
 
TRISA=0;                              // Make all RA lines output
TRISB=0;                               //Make all RB lines output
PORTA=0x02;                       // Reset the 4017
 
while(1){                                 //Endless loop
PORTB=0x01;                       // turn on first LED
Delay_ms(250);                     // Call Delay 250 ms
PORTB=0x0;                         // turn off first LED
Delay_ms(250);                     // Call Delay250 ms
}
}