tim@hoptoad.uucp (Tim Maroney) (08/21/86)
Does anyone know how the new bigger screens do memory-mapped i/o without bus arbitration? I assume they still use memory mapping because I doubt they have written their own QuickDraw modules. Obviously, there are a number of approaches possible in the add-on hardware. Also, I would be interested to know what real improvement in performance is gained by this trick. There might be up to a factor of 1.5 or so, but I wonder whether most applications aren't largely disk-bound rather than compute-bound. -- Tim Maroney, Electronic Village Idiot {ihnp4,sun,well,ptsfa,lll-crg,frog}!hoptoad!tim (uucp) hoptoad!tim@lll-crg (arpa) Bibliolatry is my bizarreness.