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- Newsgroups: vmsnet.pdp-11
- Path: sparky!uunet!munnari.oz.au!uniwa!cujo!cc.curtin.edu.au!zcookbruc
- From: zcookbruc@cc.curtin.edu.au
- Subject: Re: 11/23+ and Micro-11's
- Message-ID: <1992Nov5.184140.1@cc.curtin.edu.au>
- Lines: 28
- Sender: news@cujo.curtin.edu.au (News Manager)
- Organization: Curtin University of Technology
- References: <9211030221.AA04290@silver.lcs.mit.edu>
- Date: Thu, 5 Nov 1992 09:41:40 GMT
-
- In article <9211030221.AA04290@silver.lcs.mit.edu>, <cz@silver.lcs.mit.edu> writes:
- >
- > FPF11 CIS
- > CIS CIS
- > CIS KEF11
- > CPU CPU
- > MMU MMU
-
- Can you tel me how to identify the FPF11 chip carrier, as opposed to the
- CPU carrier. I've got a 23+ without FPF, and a 23 with, and I can't for the
- life of me distinuish which chip is which - they all have different numbers.
-
- The CPU/MMU chips are differently arranged in the sockets on both boards too!!!
-
- >
- > In any event, the FPF wouldn't work in setting 4. BTW: Isn't the FPF NEAT? A
- > 64 bit floating point unit, with full FP registers and so forth. If only the
- > 11/23+ had the split I/D (I believe it does have a Supervisor mode and stack,
- > they just aren't used in normal DEC os's. Single set of Registers too). CIS
- > made it run COBOL type programs and programs that had to access IBM 4381 type
- > data really well...
-
- Are you sure the 23 has supervisor mode ?? I've not seen anything that says
- it does, but that doesn't mean that DEC didn't put it there. If it does, then
- I could try to Generate a RSX11M+ system with supervisor, and no I/D! Now
- that would be interesting.
-
- ...BRU
-