sje@cs.nott.ac.uk (Stephen J Eglen) (03/02/91)
Dear All I am having problems with storing bit images in the area designated for the alternate video buffer on the Mac Plus. I can switch to the alternate video buffer ( I think) by using BCLR #6,0xeffffe, but it never seems to display my images that should have been loaded into that area. I think that maybe : 1. I am using the wrong assembler code, embedded in c ( on the THINK C package) 2 The memory pointed to by BufPtr is not allocated for the alternate screen display. or 3. I am doing sth. really wrong! Can aanyone who knows how to switch between two bit images using the two buffer s please get in contact with this (inexperienced) mac programmer, who despeartel y needs help! If you can help me, please e-mail me as sje@Cs.Nott.AC.UK Thank you very much! Stephen Eglen ( year 2 undergrad at Nottingham Univ)