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View Full Version : custom glyph/character pattern tables



Keal
February 27th, 2007, 09:00 PM
my avatar is a mock shot of what id like to do with the pattern tables on the PET 4016.

i used to have a book on changing the patten tables but it was MGA for 8088 (pc).

how do i change the scanlines in the pattern tables for glyph tiles on PET 4016?

perceptual mock as displayed rendering below..
http://www.vintage-computer.com/vcforum/image.php?u=3899&dateline=1172564669

carlsson
February 28th, 2007, 04:08 AM
As far as I know, the PET line of computers don't have custom definiable characters. They're ROM based and generated on the fly. I could be wrong, but I think the first Commodore computer that let you define your own graphics was the VIC-20 home computer.

Of course, you could burn your own character ROM (perhaps an EPROM) and replace, but it would be quite a hardware solution.