Subject: Re: [stella] my "pot" runneth over From: emooney@xxxxxxxxxxxxxxxx (Erik Mooney) Date: Tue, 27 Jul 1999 03:26:18 GMT |
>a few more questions about the 2600... > >1. does anyone know how many machine cycles >or scanlines it would take for the capacitors >for input ports 0-3 to be recharged based on >if the paddle was turned all the way clockwise >or counter-clockwise? in other words, if i read >INPT# every scanline, and hypothetically, i had >a paddle turned all the way clockwise, how long >would it take in machine cycles for bit 7 to be >set 1? All the way counterclockwise should be very low resistance and therefore the capacitors would recharge immediately. All the way clockwise, it's actually quite long. I tested this a while back, don't remember the exact number but it was on the order of 1.5 frames (400-something scanlines.) >2. if you had to write a routine that took a lot >of space in bytes, but total execution time fit >within one scanline (branches taken or not) and >could read the positions of two missiles and a ball >while reading two paddles and reinitializing, would >it be worth the extra bytes? Definitely. It's almost always worth extra bytes to get more screen action going on the 2600. -- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
Current Thread |
---|
|
<- Previous | Index | Next -> |
---|---|---|
[stella] my "pot" runneth over, gentlben | Thread | Re: [stella] my "pot" runneth over, gentlben |
[stella] my "pot" runneth over, gentlben | Date | Re: [stella] my "pot" runneth over, gentlben |
Month |