-------- Original-Nachricht -------- > Datum: Wed, 25 Apr 2012 02:20:07 -0400 > Von: "MikeS" <email@example.com> > An: firstname.lastname@example.org > Betreff: Re: 6545 40/80 col register values > Well, I'd call it interleaved video memory instead of "double bus width", > but let's not quibble over semantics. > > I thought the 40 and 80 col. CRTC configurations might be the same since > 80 columns are really essentially 40 columns with each character split in > two halves, but wanted confirmation for a little project being discussed on > the VC forum; the differences in the 50Hz versions are interesting though... I had investigated the PET CRTC functionality extensively when I wrote the PET emulator for VICE. It is documented in http://www.6502.org/users/andre/petindex/crtc.html (BTW: the CRTC emulation in VICE is cycle-exact in case you want to test it :-)) AndrÃ© -- Empfehlen Sie GMX DSL Ihren Freunden und Bekannten und wir belohnen Sie mit bis zu 50,- Euro! https://freundschaftswerbung.gmx.de Message was sent through the cbm-hackers mailing listReceived on 2012-04-25 08:00:12
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