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 soundtrack? -- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/stella.html Don't post pirate BINs to Stellalist. Be a programmer, not a pirate. Write the best game, win framed autographs of famous Atari alumni!!