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- Newsgroups: comp.sys.sun.misc
- Path: sparky!uunet!timbuk.cray.com!hemlock.cray.com!horne
- From: horne@birch35.cray.com (Billy Jean Horne)
- Subject: Re: what is halt_and_catch_fire?
- Message-ID: <1992Aug27.075819.29603@hemlock.cray.com>
- Originator: horne@birch35
- Lines: 14
- Sender: horne@birch35 (Billy Jean Horne)
- Organization: Cray Research, Inc.
- References: <0k4sPB4w164w@lorc.UUCP> <25125@castle.ed.ac.uk> <5332@unixhub.SLAC.Stanford.EDU>
- Date: 27 Aug 92 07:58:18 CDT
-
-
- RLP Rewind the Line Printer may not have been a legitimate
- mneumonic but it was a great way to generate an interrupt
- or create an error condition to test. Insert a Rewind
- instruction with the numeric designator for the printer
- or punch and you've got your interrupt.
-
- An early machine I worked on had a JSR instruction (for
- real) Jump or Skip at Random, the only problem was you had
- to let the engineers know 24 hours in advance before you
- were going to use the instruction so they could make
- sure the instruction was working correctly (not a part of
- the regular maintenance).
- B.J.Horne
-