On Mon, Dec 20, 2010 at 4:11 PM, "André Fachat" <firstname.lastname@example.org> wrote: > >> Given that the system tick is *not* generated from mains... >> but the VLSI chips still > > If you count the CRTC as a "VLSI" chip ;-) Most of my machines are pre-CRTC (8K Static PET model 2001, 32K Dynamic PET model 2001-N (known as a 3032 in your part of the world), so I was thinking primarily about them when I wrote that. > The PIA 6520 does not have a timer. But in the PET the jiffy interrupt is > created by the CB1 interrupt of PIA1 - might be a cycle or a few off from CB1 level change to interrupt signal output. But my video tests and the > for example the No PETs Allowed demo work on the PET real and in VICE! Tested on older PETs too or just newer ones? -ethan Message was sent through the cbm-hackers mailing listReceived on 2010-12-20 22:00:31
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