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Bit Array unsupported!

 
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John A.D.M



Joined: 30 Mar 2010
Posts: 2

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Bit Array unsupported!
PostPosted: Tue Mar 30, 2010 12:08 pm     Reply with quote
Good Evening,

I am trying to employ a bit array but am experiencing in-compatibility.

Code:


#include <16F887.h>
#fuses NOLVP, RC, NOWDT, NOPROTECT, NOCPD //#fuses HS, NOWDT, NOLVP, BROWNOUT, NOPROTECT, PUT
#use delay(clock=4000000) // 4MHz

boolean bool[4];
int i=0;

void main(void)
{
   /*
   This will create an array of bits, and initialize their values
   */
   int1 flags[]={TRUE, TRUE, TRUE, FALSE, FALSE, FALSE};
   
   /*
   Some usages:
   */
   bool[2] = flags[1];
   
   if ( flags[2] ) { /* do something */ }
   
   flags[i++] = FALSE;
}


This example was adopted from the CCS website.
It does not seem to function on the PIC16F887 and MPLAB Sim report the bit array as an "unsupported structure".
All help is appreciated....

MPLAB Version: 8.46.00.00
CCS PCWH (PCM,PCB, PCH, IDE) 4.087

Thanks.
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Tue Mar 30, 2010 12:36 pm     Reply with quote
You didn't make a test program that displayed the results, so I made one
for you. I installed vs. 4.087 and ran the program below and got these
results, which are correct:
Quote:

bool[2] = 1
flags[2] = 1
flags[0] = 0


Quote:

MPLAB Sim report the bit array as an "unsupported structure".

CCS and Microchip are two different companies. There is no requirement
that Microchip support CCS constructs, such as bit arrays.

Code:

#include <16F887.h>
#fuses XT, NOLVP, NOWDT, NOPROTECT, NOCPD
#use delay(clock=4000000) 
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7, ERRORS)

boolean bool[4];
int i=0;

void main(void)
{
   /*
   This will create an array of bits, and initialize their values
   */
   int1 flags[]={TRUE, TRUE, TRUE, FALSE, FALSE, FALSE};
   
   /*
   Some usages:
   */
   bool[2] = flags[1];
   
   printf("bool[2] = %u\r", bool[2]);

 
   if(flags[2])
     {
      /* do something */
      printf("flags[2] = %u\r", flags[2]);
     }
   
   flags[i++] = FALSE;

   printf("flags[0] = %u\r", flags[0]);


  while(1);
}
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