Subject: RE: [stella] Math riddle : Loading TIM64T with 43 burns only 36 scanlines (not 37) From: Christian Bogey <khryssun@xxxxxxxx> Date: Mon, 10 May 2004 20:56:06 +0200 (CEST) |
Hi, Erik Mooney wrote: > Based on a quick test in PCAEWin's debugger, when you > store 43 into TIM64T, it *immediately* decrements to > 42, then waits 64 cycles before decrementing to 41, > 40, and so on. Oh yes !!! that should be the key. I spent all the afternnon to make some tests and I found it worked fine with 44 even if didn't understood why (I my count it was 4 cycle too much (44*64 = 2816 instead of 37*76 = 2812). > (At least I believe this is the answer, although I could be wrong. :) ) If the register decrement immediatly, I'am pretty sure you are totally right !!! ;-) THANKS !!! Take care, Chris Yahoo! Mail : votre e-mail personnel et gratuit qui vous suit partout ! Créez votre Yahoo! Mail sur http://fr.benefits.yahoo.com/ Dialoguez en direct avec vos amis grâce à Yahoo! Messenger !Téléchargez Yahoo! Messenger sur http://fr.messenger.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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