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From: jgd@CSD4.CSD.UWM.EDU (John G Dobnick)
Newsgroups: comp.sys.tahoe
Subject: What is the BTCS instruction ?
Message-ID: <9101241939.AA19540@csd4.csd.uwm.edu>
Date: 24 Jan 91 19:39:02 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 26

We received some code to fix a problem on our tahoe machine -- code
which uses the BTCS instruction.  While the assembler seems to know
what this is, it is _not_ described in any of the manuals we have
available.  This makes it slightly difficult to understand just what
the code is doing.  (I believe we have the most current manuals our
vendor supplies.  This does not mean they are _really_ current, however.)

My Question of the Day is:

	What is this BTCS instruction?

Ideally, I seek a response that provides all the information that the
architecture reference manual supplies for the other instructions --
to wit, instruction format, operand specifications, description of
operation, "pseudo code" description of the instruction, condition
codes, etc.

Thank you for whatever information you can supply,
-- 
John G Dobnick  (JGD2)
Computing Services Division @ University of Wisconsin - Milwaukee
INTERNET: jgd@csd4.csd.uwm.edu             ATTnet: (414) 229-5727
UUCP: uunet!uwm!csd4.csd.uwm.edu!jgd

"Knowing how things work is the basis for appreciation,
and is thus a source of civilized delight."  -- William Safire