Re: sx-64 pal ntsc??

From: Steve Judd (sjudd_at_ffd2.com)
Date: 2004-07-12 18:53:17

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.).

-S


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