22 Jun
2013
22 Jun
'13
1:57 p.m.
On Sat, Jun 22, 2013 at 9:49 AM, Vincent Slyngstad <vrs at msn.com> wrote:
I think we're all "right", depending on
which gizmo we are describing :-).
The bare PDP-8/L has a maximum of 4K.
The BA08 adds 4K for a maximum of 8K.
I know of the BA08 and have looked at whatever docs are out there for it.
The BM08 adds up to 8K for a maximum of 12K.
(According to the OS/8 support
manual, it actually inhibits CDF instructions for fields >2, treating them as a
NOP.)
I have one and I remember reading that comment about inhibiting CDF
for fields >2.
The BM8L adds up to 28K for a maximum of 32K. (It
extends the IF and DF to
the full 3 bits, so I'm quite sure it goes beyond 16K.)
I have only seen your pictures of this - it sounds very interesting but I agree
they can't have made many of them.
-ethan