On Sun, May 08, 2005 at 04:57:09PM -0400, Victor Faria wrote:
> BAJ, how about a sneak peek ?  :-).

Why not? Here is a Sieve of Erastosthenes that the last person who asked to
work on it implemented. I have his code updates, but I haven't taken the
time to work on them. This program compiles with the NPCI compiler and
runs on the PIC interpreter. I also have a C based interpreter that I'm
still fleshing out.

It's not vaporware, just not yet released.

BAJ
------------------------- sieve.npc ---------------------------
//
//	prime sieve
//	test of bitset data type

//
//	sieve of Erastosthenes
//		algorithm for finding prime numbers
//		following execution,
//		one values in bit vector represent primes
//

int bits
char i
char a,b

proc sieve(int values)

  // first initialize all cells
  bits = 0xffff

  // now search for non-zero cells
  a = 2
  while (a*a <= 16)
     if (values:a)
        b = i + 1
	// inv: i has no factors 
        while (b < 16)
          values:b = 0
	  b = b + a
        endwhile
        // inv: all multiples of i have been cleared 
     endif
    a = a + 1;
  endwhile
endproc

proc main()

  print "interptest5\n";

  bits = 0;

  call sieve(bits);

  print "bits ", bits, "\n";

  i = 0
  while (i < 16)
    if (bits:i)
       print i, " is prime\n"
    endif
//    i += 1
    i = i + 1
  endwhile

endproc
-------------------------------------------------------------------
> victor
> ----- Original Message ----- 
> From: "Byron A Jeff" <byron@cc.gatech.edu>
> To: "Microcontroller discussion list - Public." <piclist@mit.edu>
> Sent: Sunday, May 08, 2005 1:42 PM
> Subject: Re: [PIC:] XPL0 language
> 
> 
> > On Sun, May 08, 2005 at 10:15:07AM -0700, James Newtons Massmind wrote:
> > > http://www.finitesite.com/d3jsys/README-NPCI.html
> > > NPCI... It came to me in a dream last night... <GRIN> Pretty sad when
> you
> > > dream about unfinished PIC languages...
> >
> > That's really sad. ;-)
> >
> > I don't even dream about NPCI and I wrote it.
> >
> > Getting NPCI stable is on my list of summer projects. The last time I
> > worked on it NPCI actually worked pretty well. I didn't release it because
> > I didn't have time to support it. But I will soon.
> >
> > My plan is to incoporate it with a bootloader. With PICs with 4K to 8K
> > self programmable program memory, there really isn't a need for a separate
> > programmer or external program memory.
> >
> > BAJ
> > -- 
> > http://www.piclist.com PIC/SX FAQ & list archive
> > View/change your membership options at
> > http://mailman.mit.edu/mailman/listinfo/piclist
> >
> 
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