Subject: Re: [stella] Megacart Specs From: bwmott@xxxxxxxxxxxx Date: Sun, 12 Apr 1998 09:26:51 -0400 (EDT) |
> >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. Brad -------------------------------------------------------------------------- Bradford W. Mott (bwmott@xxxxxxx) Computer Science Department http://www4.ncsu.edu/~bwmott/www North Carolina State University -------------------------------------------------------------------------- -- 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!!
Current Thread |
---|
|
<- Previous | Index | Next -> |
---|---|---|
Re: [stella] Megacart Specs, Piero Cavina | Thread | Re: [stella] Megacart Specs, Piero Cavina |
Re: [stella] Megacart Specs, Piero Cavina | Date | Re: [stella] Something I jsut thoug, Lee Seitz |
Month |