Re: [stella] 2600 F8 game on 7800 RAM cart

Subject: Re: [stella] 2600 F8 game on 7800 RAM cart
From: "Eckhard Stolberg" <Eckhard_Stolberg@xxxxxx>
Date: Mon, 21 Apr 2003 17:14:21 +0200
Hello Adam,

> Here's a first attempt at munging a 2600 F8 game to play in a
> 7800 RAM cart.
> If I did everything right, you should be able to load this into a
> RAM cart on a 7800 at $E000 and play it in 2600 mode and it should
> work.

Unfortunately that won't work. In 2600 mode the 7800 maps
in the TIA and RIOT in all even 4K segments of the 6502
memory map. Therefore you can only use the odd 4K segments
for a game. You have to double the segments in the ROM and
compile the later halves for $D000 and $F000.

Ciao, Eckhard Stolberg

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