24 Jan
2007
24 Jan
'07
6:07 p.m.
Bill Gunshannon wrote:
Right. And I forgot to mention the 11/24 as well. (I'm ignoring the
Q-bus machines, and really old/small unibus machines as well.)
So we also have CIS. And to adjust the list above:
11/24: EIS, unibus map and 22-bit addressing. Optional FPP and CIS.
11/44: Optional CIS.
Johnny
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. :-)