You might look at my analysis of the pet crtc stuff here http:www.6502.org/users/andre/petindex/crtc.html There also is a more generic page on the crtc on my site. The number of rasterlines is indeed the register value mentioned plus 1. André Rob Clarke <crock@clarke-family.org.uk> schrieb: >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, didier@aida.org 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 list -- Diese Nachricht wurde von meinem Android-Mobiltelefon mit K-9 Mail gesendet. Message was sent through the cbm-hackers mailing listReceived on 2012-11-15 06:00:14
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