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Re: VGA for Carte Blanche operational
- Subject: Re: VGA for Carte Blanche operational
- From: alex.freed.007@gmail.com
- Date: Tue, 21 Apr 2009 02:32:51 -0700 (PDT)
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On Apr 20, 4:20 pm, Mark McDougall <msmcd...@no.spam.iinet> wrote:
>
> Does the keyboard input get routed (directly/indirectly) to the FPGA?
>
> If so, it'd be _really_ nice to have an OSD to select the different
> options/modes. Sounds like you have plenty of FPGA resources to implement
> that!?!
The keyboard is not routed to the slots directly unless we implement a
PS/2
keyboard interface. However we can use a trick: watch the bus till a
read of
$C000 returns "1" in the high bit. That's a keyboard press.
Unfortunately
Apple will also see it. So if a program says: "insert disk 2 and press
any key"
we won't be able to use this mechanism.
-Alex.