I'm getting hardware errors on phatk 2.2, didn't get them on diapolo's or 2.1

the three are about undistinguishable in terms of speed for me

Are you using BFI_INT? Of not, there is a bug in the 2.2 kernel, Vince found that in the kernel.cl file, you have to replace

Code:

#define Ch(x, y, z) bitselect(x,y,z)

on line 78 with

Code:

#define Ch(x, y, z) bitselect(z, y, x)

I haven't gotten around to release a new version, but if you make the change yourself, it should fix it.

-Phateus