to make one of these in discrete logic:
(if you don't feel like looking, it's an Apple II
IDE/Cflash controller)
http://cgi.ebay.com/MicroDrive-IDE-Controller-for-Apple-IIe-IIgs_W0QQitemZ3…
This is not discrete logic, there is at least one GAL there I can see in
the photo! :oP