On Wed, Jun 21, 2017 at 08:51:34PM +0200, Gerrit Heitsch wrote: > >>>What about HMOS and NTSC? 8565 is only PAL, right? What's been used on > >>>narrow NTSC boards? Or weren't there actually any? > >> > >>That would have been the 8562 for the C64 and the 8564 for the C128. > > > >Admittedly never seen any of the two. Can those also be distinguished from > >their NMOS counterparts with the collision based detection? > > No idea, the code I found spoke about PAL... But I would assume that > those parts of the circuit would be the same between PAL and NTSC. The only difference between PAL and NTSC should be the contents of the X and Y comparator arrays. I've never seen a die pic of any NTSC VIC-II, so no idea if that is actually true... But I cannot think of any other difference currently. Segher Message was sent through the cbm-hackers mailing listReceived on 2017-06-21 20:03:10
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