Alain,

What I need is much simpler than that, I just want to know the result of simple sine calcluation (PBP :8bit) like this:
SIN 0 = ?
SIN 64 = ?
SIN 255 = ?

In the PBP manual it says the result is -127 to 127, does that mean SIN 0 = -127 SIN 255 = 127 ?

Johan