According to the famous document by Chris Bauer, there are three timing variants of the VIC-II. While PAL is always 63 cycles per line, with NTSC there can be either 64 or 65 cycles per line and I am in fact able to reproduce the difference with -model ntsc and -model oldntsc in the current VICE. The question (before I spend weekend on trial'n error counting cycles and possibly reinventing the hammer ;-) is: do we have ane established, reliable software method for detecting which NTSC VIC-II is installed in the machine? I guess it must have been done multiple times by now and used in some NTSC games/demos.. -- SD! - http://e4aws.silverdr.com/ Message was sent through the cbm-hackers mailing listReceived on 2017-06-21 15:00:08
Archive generated by hypermail 2.2.0.