[sdiy] Reverse Sawtooth

[Tim Daugard]

From: "Tim Parkhurst" <tim.parkhurst at gmail.com>
To: "Matthew Smith" <matt at smiffytech.com>

> To save some memory, have you thought of only keeping half the wave in
> the lookup table, and inverting & offsetting it for the second half?

You can actually get away with 90 degrees of a sine wave table. 1/4 the 
space. It would eat more processor time and the code size MIGHT be worse 
than the table look up.

Tim Daugard
AG4GZ 30.4078N 86.6227W Alt: 12 feet above MSL
http://members.cox.net/synthfred/h_toctop.htm (Fred's online edition)