src/tools.cu


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

//--*-c-*-

extern "C"
{

__global__ void interleave(int nthreads, unsigned long long *x, unsigned long long *y, unsigned long long *z, int bits, unsigned long long *dest)
{
	int id = blockIdx.x*blockDim.x + threadIdx.x;

	if (id >= nthreads)
		return;

	for (int i=0; i < bits; i++)
		dest[id] |= (x[id] & 1 << i) << (2*i) | (y[id] & 1 << i) << (2*i+1) | (z[id] & 1 << i) << (2*i+2);
}

}