>Yes, there sure was a CIS chip for the 11/23[+]. And I am still looking
I know... I have one (maybe two) KDF11-B boards with the CIS chip.
>for one to upgrade one of mine. I do have the FPF-11 floating point
>processor board that alternately connects to the socket for the FIS
>chip, I have a FIS chip in another processor board, but the sockets for
>CIS are still vacant in both.
It was my understanding that the EIS/FIS chip is only usable with
the 11/03 (11/2, PDT) machines (and the PDT requires the dual
microm in order to make space for it). The CIS chip is a dual-wide
chip... it spans two chip spaces on the 11/23 and 11/23+ boards.
>Once I get it / Should I ever get it, which languages could make use of
>it? - Assembler, of course, and COBOL, I think?
You can always do it in assembler. As for cobol or other layered
products, you probably have to use a version which has been specifically
built to use those instructions (or can detect their availability on
the fly and use them).
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | email: mbg at world.std.com |
| | |
| "this space | (s/ at /_at_/) |
| unavoidably left blank" | URL:
http://world.std.com/~mbg/ |
| | "pdp-11 programmer - some assembler |
| (DEC '77-'98) | required." - mbg KB1FCA |
+--------------------------------+-------------------------------------+
Received on Tue Jan 07 2003 - 15:25:00 GMT