Re: All this talk of a new GS...

[Frank Carney <frankcTAKETHISOUT@ANDTHISALSOsrv.net>]

Jonas Bevren wrote:
> 
> On Sat, 5 Feb 2000, Frank Carney wrote:
> 
> > Date: Sat, 05 Feb 2000 14:29:57 -0700
> > From: Frank Carney <frankc@cyberhighway.net>
> > Newsgroups: comp.sys.apple2
> > Subject: Re: All this talk of a new GS...
> >
> > Does anyone know how the Transwarp accelerators work?
> > I get the idea that there is a microkernel that runs and does fetching
> > of instructions into the cache then also has to provide a system clock
> > to the IIgs and other housekeeping signals.  Am I off the mark here?  If
> > it is easier to build a 65816 accelerator with the existing 20Mhz chips
> > then this might be the way to go.  Any thoughts?
> 
> It might be more feasible to do this.  However, these 20mhz chips dont
> exist. =)  My 20mhz (from factory) accelerator for my C-64 uses a 14mhz
> WD65c816.  It's overclocked from the start.
> 
> I'm unaware of the transwarp's exact methodology, but I believe you're
> close.
> 
> -Jonas

Overclocked only means if you it can run at a faster speed than it is
rated.  Intel has on occasion taken faster chips and marked them as
slower to meet volumes for lower end chips.  The 14Mhz chips may just be
the cream of the crop or it may be standard for them to be able to run
at 20Mhz.  If it is the latter, I would say the manufacturer is being
very conservative on the chip ratings.