Subject: Re: [stella] Grid demo From: John Saeger <john@xxxxxxxxxxx> Date: Mon, 02 Nov 1998 00:29:10 -0800 |
Erik Mooney wrote: > > >I'm not quite sure, if I understand your theory corectly. Are you > >trying to say, that if you hit RESP0 and then hit it again 11 cycles > >later, what you'll get is two copies for each hit to RESP0 and > >not one copy for the first hit and three copies for the second? > > > >If that is the case, then I think you are wrong. If you do > >sta RESP0 > >sta RESP1 > >sta RESP0 > >sta RESP1 > >the second hit to RESPx happens after the first pixel of the second > >copy of a three sprite set. The output will be three sprites > >positioned five pixel after the second hit to RESPx. That would > >not be the case, if the first copy belonged to the first hit to > >RESPx. > > Not quite. I tried what you just said - RESP0/RESP1/RESP0/RESP1. The > first RESP0 occurred on cycles 25, 26, and 27. I get Player 0 sprites at > pixels (counting from 0) 34, 52, 68, and player 1 sprites at pixels 43, 61, > 77. I'm dead sure about those numbers. Note the 18-pixel gaps between the > first two copies of each player. When I do the experiment I see player 0 sprites at *36*, 52, 68. Player 1 at *45*, 61, 77. Two perfect triples. From the second RESPx. Is your TIA really different? That would be cool. Mine does unstable sprites sometimes. I think I've got the only one that does that. :-) John
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