Subject: Re: [stella] Math riddle : Loading TIM64T with 43 burns only 36 lines...Help From: Christian Bogey <khryssun@xxxxxxxx> Date: Mon, 10 May 2004 17:19:04 +0200 (CEST) |
Chris Wilkson wrote: > At first glance I don't see anything wrong with it. Me neither, that's why the problem drives me crazy. > <TOTAL PARANOIA> Maybe your version of z26 isn't > counting lines right? > </PARANOIA> LOL Z26 works perfectly, if I don't use the TIM64T routine but a basic 37 VBLANK scanlines loop like this : LDX 37 Vertical_Blank STA WSYNC DEX BNE Vertical_Blank everything is fine, z26 gives me my 262 scanlines. > Trying inserting the following lines into your code > before the frame loop: > > Setup_Playfield > LDA #$ff > STA PF0 > LDA #$04 > STA COLUPF Nice idea ! very clever ;-) I changed the color value (04 was too dark to count) and run it (mode 6) : there's 39 scanlines drawn not 40... It seems there's really a problem. Does anyone can explain this ? 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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