Subversion Repositories planix.SVN

#include        "cc.h"

Bits
bor(Bits a, Bits b)
{
        Bits c;
        int i;

        for(i=0; i<BITS; i++)
                c.b[i] = a.b[i] | b.b[i];
        return c;
}

Bits
band(Bits a, Bits b)
{
        Bits c;
        int i;

        for(i=0; i<BITS; i++)
                c.b[i] = a.b[i] & b.b[i];
        return c;
}

/*
Bits
bnot(Bits a)
{
        Bits c;
        int i;

        for(i=0; i<BITS; i++)
                c.b[i] = ~a.b[i];
        return c;
}
*/

int
bany(Bits *a)
{
        int i;

        for(i=0; i<BITS; i++)
                if(a->b[i])
                        return 1;
        return 0;
}

int
beq(Bits a, Bits b)
{
        int i;

        for(i=0; i<BITS; i++)
                if(a.b[i] != b.b[i])
                        return 0;
        return 1;
}

int
bnum(Bits a)
{
        int i;
        long b;

        for(i=0; i<BITS; i++)
                if(b = a.b[i])
                        return 32*i + bitno(b);
        diag(Z, "bad in bnum");
        return 0;
}

Bits
blsh(uint n)
{
        Bits c;

        c = zbits;
        c.b[n/32] = 1L << (n%32);
        return c;
}

int
bset(Bits a, uint n)
{
        if(a.b[n/32] & (1L << (n%32)))
                return 1;
        return 0;
}