[Coco] Coco Homebrew ROM Cartridge?
Bruce W. Calkins
brucewcalkins at charter.net
Sun Apr 19 11:04:57 EDT 2009
----- Original Message -----
> Was wondering if it would be possible to get
> a Homebrew custom coco cartridge working.
> Could you put multiple game roms with a menu
> on a single cartridge?
I piggybacked the Polaris & Chess ROMs back in 1985 with a switch between
them. That still works. What you need to do is set up switches to allow
any 4k to 8k section to address at &hC000. Conceivably you could make a
soft switch controllable with pokes, but most cartridges would require a
hard reset to exit.
> The reason I ask is I just saw the custom made
> cartridge board advertisement on the coco3.com
> home page and it got me curious
They come with jumpers or switches for 8k upper, 8k lower or all 16k of the
27128 EPROM. That is a 2 in one ROM pack. Figure out the switch pattern
for the 27512 EPROM and you have 8 or more RomPaks in one.
More information about the Coco