[DuoList] memory mapped I/O

[Samual Acorn]

an idea for the 280c 640x480x16bpp hack...
since the 68K series of CPUs use memory mapped I/O (not a great
idea... but it works...) would it not be possible to make the video
chip use a portion of main memory as video memory? (like computers
from the days of yore did.. like the apple2 and commodore64)

just tossing that thought out there... i dunno much about the
internals of macs... they are odd and undocumented territory in the
computer world...