Subject: reading paddles (again) (was:Re: [stella] stick/paddle combos) From: Piero Cavina <p.cavina@xxxxxxxxxxxxx> Date: Tue, 30 Sep 1997 20:56:24 +0100 |
At 23:45 -0700 29-09-1997, Greg Troutman wrote: >All paddle game programmers are really good ;) At this point, I must really get MONDO PONG back to life... :-)) We've already been talking about how to read paddles... here's what Jim wrote months ago: >To reduce the overhead of your paddle routines, you could interleave >the reads (only read one paddle every 2 scan lines, and alternate) >but that will reduce the resolution. You could read the paddle >positions alternately, one paddle per frame, which gives you less >time precision (you only have new values every 30th of a second.) > >> >> LDA INPT0 ; read port 0 >> BMI charged0 ; condenser already charged, skip increment >> INC Pot ; increment paddle position value >>charged0 (please substitute my "condenser" with "capacitor", btw ;) P. -- Archives updated once/day at http://www.biglist.com/lists/stella/archives/ Unsubscribing and other info at http://www.biglist.com/lists/stella/stella.html
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