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

[Adam Wozniak <adam@xxxxxxxxxxxxxxxx>]

On Mon, 21 Apr 2003, Eckhard Stolberg wrote:
> 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.

This should work, if loaded at $D000.  The range from $E000 to $EFFF
is all $00.

This may not have been a fair test though, as it seems Galaxian
was well suited to this sort of manipulation...

-- 
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Will code for food.          http://cuddlepuddle.org/~adam/resume.html

"Fools despise wisdom and instruction." Proverbs 1:7

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