Re: [stella] Megacart Specs

Subject: Re: [stella] Megacart Specs
From: Piero Cavina <p.cavina@xxxxxxxxxxxxx>
Date: Mon, 13 Apr 1998 09:42:31 +0200
At 09.26 12/04/98 -0400, bwmott@xxxxxxxxxxxx wrote:

>> >That would allow volume samples or more complex graphics like in 
>> >Pitfall2.
>> More complex graphics from the Pitfall2 extra chip? How is this possible?
>It has some sort of pointer registers in it.  The idea is that you set
>the register to point somewhere in the ROM then each time you read
>from the register it automatically increments the pointer to the next
>address.  This saves you from having to do that manually.  These pointer
>registers also have bounds on them I believe.  When the pointer is outside
>the bounds the data read is always zero.

Do you know how this feature was used in Pitfall 2, besides the background

Archives (includes files) at
Unsub & more at
Don't post pirate BINs to Stellalist.  Be a programmer, not a pirate.
Write the best game, win framed autographs of famous Atari alumni!!

Current Thread