#include	<pic.h>

#define DATA_EEMEM_PROTECT_DISABLE 0x0100
#define XT_OSC 0x0001
#define DISABLE_DEBUG 0x0800


#define CP0		0x1010
#define CP1		0x2020

/* CP0,CP1  code protect off*/
/* other bits zero which means WDT disabled
   Low Voltage prm disabled, brownout disabled
   power up timer enabled */

__CONFIG((CP1 | CP0) | DATA_EEMEM_PROTECT_DISABLE  | XT_OSC | DISABLE_DEBUG);


#define bitset(var,bitno) ((var) |= (1 << (bitno)))
#define bitclr(var,bitno) ((var) &= ~(1 << (bitno)))
#define bittst(var,bitno) (var & (1 << (bitno)))

/* a subroutine that implements a delay via loops 
 Note that the compile option used will alter this delay! 
 Always use -O compile option 
*/
a_delay()
{
  unsigned int i,k;

  /* change count values to alter delay */
  for (k=1800; --k;) {
    for(i = 200 ; --i ;);
  }

}

/* just flash LED on port PB1 */
/* use this to test if PIC board is alive */
main(void)
{

  TRISB = 0;		/* all bits output */
  PORTB = 0x00;		/* turn all off */
  /* use PB1 for output */

  for(;;) {  /* note infinite loop, all PIC programs should
		be an infinite loop of some kind. Why? If the
		loop exited, what would the PIC do? */

    a_delay();  /* a subroutine that implements a delay via loops */
    bitset(PORTB,1);	/* turn on PB1 */
    a_delay();
    bitclr(PORTB,1);	/* turn off PB1 */
  }
}




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