I've variously seen it written that one can reduce the color cell size down to 8x1 for bitmapped graphics, but some say this isn't actually possible and that 8x2 is the best which can be done. Anyone know for certain either way?
I found the following information in the Google Usenet archive for comp.sys.cbm:
QuoteThe only thing which makes it "similar to FLI" is the 8x1 color cells. Other
than that, the method is quite different. In fact, the VDC is doing the
8x1 color cells on it's own, the only thing you need to do is to force it
into displaying these. Normally you can only set cell sizes of 8x2 to 8x16,
if you set a cell size of 8x1 the VDC will simply display nothing else than
the background color. Forcing the VDC to enable the display is similar to
opening the upper/lower borders on VIC: You simply set the color cell size
to 8x2, and after the VDC has enabled the display area, you set it to 8x1.
At the end of the display area you have to set it back to 8x2 again. Now
you have to make sure that there are still 263 or 312 rasterlines displayed
in total, and you are done.
Thanks. I missed that one when searching the Usenet archives. Although different VDCs vary in their timing, I suppose that as long as one measures the vertical blank period accurately, this shouldn't be hard to accomplish.