home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!wupost!micro-heart-of-gold.mit.edu!rutgers!spcvxb!terry
- From: terry@spcvxb.spc.edu (Terry Kennedy, Operations Mgr.)
- Newsgroups: vmsnet.pdp-11
- Subject: Re: Mysterious Messages...
- Message-ID: <1993Jan9.055829.4862@spcvxb.spc.edu>
- Date: 9 Jan 93 10:58:29 GMT
- References: <1993Jan9.072106.17306@netcom.com>
- Organization: St. Peter's College, US
- Lines: 24
-
- In article <1993Jan9.072106.17306@netcom.com>, sspatter@netcom.com (Samuel Scott Patterson) writes:
- > However, there seems to be something trapped inside
- > a boot ROM and I am wondering what it is... WhenI connect a terminal
- > to my PDP and turn the computer on, the RUN lamp comes on and I get,
- > 170000 170002 170000 170010
- > @
-
- That's the console emulator PROM (23-616F1 if I recall correctly). It is
- an interesting attempt at a console program in 512 words. You have to type
- uppercase commands to it [I recall looking at it to see if this could be
- fixed - *every* byte is used and the code is already quite tight, so I
- gave up].
-
- You boot devices by typing the device mnemonic (DB, DM, DL, MT, MM, etc.).
- If you don't have a ROM for it you get an error.
-
- Your ROMs should have numbers like 755A9 on them. If they don't, examine
- locations 173000, 173200, 173400, 173600 and tell me what the first word is
- and I'll look 'em up. On the other hand, you could just convert the octal
- to ASCII and it's the device mnemonic.
-
- Terry Kennedy Operations Manager, Academic Computing
- terry@spcvxa.bitnet St. Peter's College, Jersey City, NJ USA
- terry@spcvxa.spc.edu +1 201 915 9381
-