Commodore 64 for grabs

[Cameron Kaiser]

> Theoretically, the SID handbook published by Commodore should be enough to
> recreate the SID.  Since NMOS isn't used very much anymore, that may be a
> roadblock to making exact copies.

Also, I should point out that while both the 6581/2 and 8580 are NMOS, the
later 8580 is technically HMOS-2, which is a Commodore-specific high speed
NMOS manufacturing process. In addition, the 8580 *is* different w/r/t
waveforms, and corrects a voltage leak which was widely exploited as a cheap
4-bit D/A converter ($d418).

-- 
--------------------------------- personal: http://www.armory.com/~spectre/ ---
  Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com
-- #include <std_disclaimer.h> ------------------------------------------------