Path: utzoo!utgpu!jarvis.csri.toronto.edu!white.toronto.edu!ghfeil Newsgroups: comp.sys.cbm From: ghfeil@white.toronto.edu (Georg Feil) Subject: Re: PAL/NTSC clock speeds needed! Message-ID: <1990Feb16.171326.15265@jarvis.csri.toronto.edu> Organization: University of Toronto, CSRI References: <1990Feb15.195025.6915@jarvis.csri.toronto.edu> Date: 16 Feb 90 22:13:26 GMT Lines: 15 I worked out these frequencies years ago by studying the C64 schematic. I've never used a PAL C64, so I have no proof that this number is actually right, but it was arrived at in the same way as the NTSC number, which seems right. C-64 CPU clock speeds: NTSC: 1022727 Hz PAL: 985248 Hz Georg. -- Georg Feil Internet: ghfeil@white.toronto.edu -or- : georg@sgl.ists.ca ..if all else fails, try: {uunet,pyramid,watmath,utzoo}!utcsri!white!ghfeil (UUCP) ghfeil%white.toronto.edu@relay.cs.net (ARPA)