[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: TWGS
I wonder if you could stick a whole meg or more on the cache card (attach
a ribbon cable) so you could speed the GS up even more?
Supertimer wrote:
> CBS <jsmith66@hotmail.com> wrote:
>
> >I've read here that the GAL's are hard to copy. Why is this? Besides
> >the obvious reason of copyright (held by a now bankrupt, long gone
> >company), what is stopping Apple II'ers from copying the fastest GAL
> >chips?
>
> Or upgrading the ROM! The ROM contains the programming
> for the cache size. Unlike the ZipGS, which all logic is locked
> into a soldered ASIC, the TWGS is designed to be a more
> open system.
>
> The original ROM supported 8k of cache. Later ones
> supported 32k. 64k and beyond is possible with higher density
> cache RAM chips and new ROM programming.
- References:
- TWGS
- From: CBS <jsmith66@hotmail.com>
- Re: TWGS
- From: supertimer@aol.com (Supertimer)