Re: ZipGSX programming...

[stc7@cunixb.cc.columbia.edu (Steven T Chiang)]

In article <jmk3.728283783@crux1.cit.cornell.edu> jmk3@crux3.cit.cornell.edu (Jay Krell) writes:
>This ZipGS's softswitches and such are retarded, IMHO.
>Anyone know why the took the route of stealing already used
>softswitches instead of the slot's switches?

	I have no clue, but the method of accessing them is a bit
lame.  I couldn't get the softswitches to work by loading long, I had
to be in bank e1 to make it work.

>The only thing reason I know is to make it work for the non-slot
>model they never sold, I guess.

	They did sell a non-dma 7 mhz version of the zip chip, which
was only a chip.  I don't think it was that popular as it wasn't
"upgradable".

>How about the TWGS? Does it use its slots memory and can you ID the
>TWGS by looking for ID bytes in Cx00?

	Yeah, the TWGS was done right.  There are TWGS ID bytes
somewhere in memory (I forget where).  And there are a bunch of
firmware calls, to shut the TWGS off, etc.  The rom is also the reason
why the control panel is always installed.



Steven Chiang                  Order - DreamGrafix:  The ONLY 16/256/3200
stc7@cunixb.cc.columbia.edu       color paint program for the Apple IIGS.
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