Re: VGA for Carte Blanche operational

[sicklittlemonkey <Nick.Westgate@gmail.com>]

On Apr 21, 6:32 pm, alex.freed....@gmail.com wrote:
> 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.

That would be very handy!

> 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.

Unless there's a unique and unlikely prologue before the command.

Cheers,
Nick.