Quote:
Originally Posted by mc6809e
Here's a question: if VPOS is written to, can we fool the hardware into generating a vertically longer display by resetting VPOS to an earlier line? My guess is yes to some extent, but a CRT would need its vertical size control adjusted.
|
Sure you can, you can 'shorten' or 'lengthen' the display, but the synchronization is not necessarily maintained.
Some OCS games do this with good results (usually to 'emulate' NTSC resolution over PAL).
But it's not trivial because you can't use copper to do it.