consp24@bingsuns.pod.binghamton.edu (consp24) (02/19/91)
To Matt Desmond or anyone else who has done interlace on the
80 column display:
I have set up the appropriate registers to do bitmap mode (bit 7 of
register 25),
with attributes enabled at $8000 (32768- I have 64K display RAM), I've set
the display start address to $0000, and I've set register 8 to $03 for
interlaced sync and video mode.
The question is: how do I set registers 3 and 5 to get the interlace to
work properly? As it is now, I get the even scan lines on the top half of the
display and the odd scan lines on the bottom half of the display. Also,
are there any other registers that need to be set or altered to get this beast
working?
Thanks
Gregg Riedel
consp24@bingsuns.pod.binghamton.edu