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Re: Second Sight board
- Subject: Re: Second Sight board
- From: dempson@actrix.gen.nz (David Empson)
- Date: Sun, 2 Oct 1994 03:29:44 GMT
- Newsgroups: comp.sys.apple2
- Organization: Actrix Information Exchange
- References: <iq84408@pro-dan> <368km0$t2d@paris.ics.uci.edu> <369j0f$j43@gap.cco.caltech.edu>
In article <369j0f$j43@gap.cco.caltech.edu>,
Nathan Mates <nathan@cco.caltech.edu> wrote:
>
> Now, when I get a Second Sight, I might have to either upgrade
> to a Rom 03, or maybe move the VOC into another slot, provided it
> can still overlay a video signal on black.
Nope. You'll need a ROM 3, or run a wire to the M2B0 signal on slot 3.
Without this signal, the VOC cannot distinguish between accesses to
bank $E0 and bank $E1, so it can't tell which video buffer area you
are writing to.
--
David Empson
dempson@actrix.gen.nz
Snail mail: P.O. Box 27-103, Wellington, New Zealand