Subject: [stella] Some Background Questions That Occur To Me From: Pete Holland <petehollandjr@xxxxxxxxx> Date: Tue, 29 Jul 2003 19:40:40 -0700 (PDT) |
Hey, everybody! After much meditating, how the Atari 2600 "thinks" is becoming clearer. But I would like to ask a couple more questions first. 1) How did they come up with the color clocks/machine cycles? I don't mean how did they measure them, but rather, what reasoning did they use to come up with having the TIA count color clocks and that three of them equaled one machine cycle? Was that simply the limits of what was available at the time? 2) I'm paraphrasing: to start drawing the player, you activate the graphics at the color clock position it's supposed to appear at. One of the big hang ups is the screen. Does the math about the color clocks and screen display only apply to the area covered by the playfield et al, or is it possible to draw a little outside the playfield? I wonder because games like Space Invaders, the invaders are limited to how far they move, but the bottom of the screen, the "land" goes off the screen. Is that simply a background color, and it gets drawn no matter what, or is that part of the playfield? There's one more question, but it's coming and going. I'll write it up later should it come to me. Right now, those are nagging at my brain. Dobre utka, Pete Holland Jr. __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com ---------------------------------------------------------------------------------------------- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
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