I did a bit of analysis on this last year when I was working out the refresh rates on various CRTC PET's. I looked at all the edit roms on zimmers and put all the CRTC initialisation registers into a s/sheet. You can get it here: http://inchocks.co.uk/commodore/PET/PET_CRTC.xls THere's two rows for each ROM, being the initialisation registers for text and graphics modes respectively. As Martin said, it's usually 2 except for one alternate version of the 901474-04 rom which had only 1 extra scan line. Rob On 14/11/2012 23:11, email@example.com wrote: > Hi, > > > > Apparently on the commodre 8000 the font displayed is 8x8 but apparently some blank lines can be added in “text” mode > > Do you have any idea on the exact number ? > > > > The data in the register of the 6545 is 9 in text mode and 7 in graphic mode… > > > > Is there 1 or 2 blank lines ? > > > > I don’t remember very well…. > > > > Thanks > > > > -- > > Didier > > > > > > Message was sent through the cbm-hackers mailing listReceived on 2012-11-15 00:00:10
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