[Coco] Re: Banked switched roms

Bill Nobel b_nobel at hotmail.com
Thu Jan 29 10:18:47 EST 2004


>From: "John Collyer" <johncollyer at zoominternet.net>
>Reply-To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
>To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
>Subject: Re: [Coco] Re: Banked switched roms
>Date: Thu, 29 Jan 2004 08:23:08 -0500
>
>Hi, more questions.
>
>Tandy produced cartridges that used bank switching.
>
>   1. Mind-Roll had two banks.
>   2. Predator had four banks.
>   3. Robocop had eight banks.
>
>What size cartridges where these games?  16K or 32K.
>How did the copy to ram programs save them on disk?
>Are any of these games available on the internet?
>
>Looking at the Feb. 1986 Rainbow I see a article about
>the Banker.  Was this a 16K cartridge?  Just skimming
>the article, did this ram disk use banking like the games
>above?
>
>Where can I get a complete list of any banked switched
>cartridges from?
>
>John Collyer
>

  You could actually use ROM's of any size depending on the hardware in the 
cartridge.  The cartridges you mention above were 32k carts.  The coco is 
robust enough in memory handling to allow a multiplexer in the cartridge to 
allow bank switching on the ROM level as well as RAM.

-Bill

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