[Coco] MC-10 RAM and ROM Carts
marcelo.cannella at gmail.com
Sat Jul 30 20:31:52 EDT 2016
Very interesting project!.
El 28/7/2016 23:27, "Zippster" <zippster278 at gmail.com> escribió:
> Hello everybody,
> This is a little project I’ve had the hardware done on for a while. This
> week I got back to them and
> worked up the CPLD programming for them. They seem to work well after
> some testing.
> I’ll be removing two of the jumpers as I think they aren’t needed after
> finishing development on these.
> There’ll just be one jumper, that will enable and autostart ROM code at
> $E000 (where Microcolor BASIC
> normally resides).
> These should be well suited to cartridge games on the MC10. They will add
> to the system…
> 1) 32K of RAM
> - 16K mapped to $0000-$3FFF
> - 16K mapped to $5000-$8FFF (available for basic programs)
> 2) 16K of ROM
> - 8K mapped to $C000-$DFFF
> - 8K mapped to $E000-$FFEF (last 16 bytes excluded for CPU vectors)
> A few pics and whatnot...
> < https://drive.google.com/open?id=0B1sgl615FlGndzRDQUNzTlJMRms <
> A version with two ports for Atari style joysticks will probably be next.
> They’ll function the same as
> the joystick ports on the Alice computer and Darren Atkinson’s MCX32 for
> the MC10.
> - Ed
> Coco mailing list
> Coco at maltedmedia.com
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