Re: sx-64 pal ntsc??

From: Groepaz (
Date: 2004-07-12 19:07:14

On Monday 12 July 2004 18:53, Steve Judd wrote:
> Hola matt,
> On Mon, 12 Jul 2004, matt wrote:
> > yes it is acording to playsid its VBI (vert blank IRQ) i think?
> > is it possable to fix just this??
> If by "fix" you mean "NTSC-fix" or "PAL-fix", then the usual trick is to
> delay every 6th player call, i.e. replace the JSR which calls the
> music with something like
> 	dec counter
> 	if counter > 0 then jsr $1000
> 	else counter=6 (no jsr)
> If by "fix" you mean a hardware solution, you'll have to swap the VIC
> (which may be bad for the SX-64 monitor, as others have said; but then
> again it may not.  It'll be black and white, though, if it works.).

waaaahhhhhh thats a horrible "fix" :=P

better use a timer interrupt for the music player (yes i know, its not
always possible in certain frame-based code... then again most of such
code wont work on ntsc at all either)


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