From mboxrd@z Thu Jan 1 00:00:00 1970 From: bill@cs.uofs.edu (Bill Gunshannon) Date: Wed, 24 Jan 2007 06:37:19 -0500 (EST) Subject: [pups] Advice on which PDP-11 processor handbook to buy In-Reply-To: <45B71FA0.9020403@softjar.se> References: <2f30dc950701232011h1ac14dafgb81ab07c06b167d7@mail.gmail.com> <45B71FA0.9020403@softjar.se> Message-ID: <4961.136.218.171.21.1169638639.squirrel@www.cs.uofs.edu> > The major groupings you can do with the PDP-11 systems are otherwise if > they have split I/D space, supervisor mode, unibus map and 22-bit > addressing, floating point (none/FIS/FPP) and EIS. > Rougly, you can say: > > 11/34: EIS. Optional FPP. > 11/40: None of that. Optional EIS and FIS. > 11/44: All of it. Optional FPP. > 11/45: split I/D, supervisor, EIS. Optional FPP. > 11/60: EIS. Optional FPP. > 11/70: All of it. Optional FPP And let's not forget the CIS Option. :-) bill -- Bill Gunshannon | de-moc-ra-cy (di mok' ra see) n. Three wolves bill at cs.scranton.edu | and a sheep voting on what's for dinner. University of Scranton | Scranton, Pennsylvania | #include