Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!watmath!clyde!akgua!jett!ags@pucc-i
From: ags%pucc-i@jett.UUCP (Seaman)
Newsgroups: net.jokes
Subject: Re: Assembler Manual Needed - (nf)
Message-ID: <206@pucc-i.UUCP>
Date: Thu, 16-Feb-84 11:05:24 EST
Article-I.D.: pucc-i.206
Posted: Thu Feb 16 11:05:24 1984
Date-Received: Sun, 19-Feb-84 08:15:47 EST
Lines: 32

References: <5669@uiucdcs.UUCP>
Relay-Version: version B 2.10.1 6/24/83; site akgua.UUCP
Posting-Version: version B 2.10.1 6/24/83; site pucc-i
Path: akgua!clyde!burl!ulysses!mhuxl!ihnp4!inuxc!pur-ee!CS-Mordred!Pucc-H:Pucc-I:ags
Message-ID: <206@pucc-i>
Date: Thu, 16-Feb-84 11:05:24 EST
Date-Received: Fri, 17-Feb-84 09:21:25 EST
Organization: Purdue University Computing Center

BSP - Backspace program counter?  That's a genuine possiblility on at least
one machine.

The TI980 has (I would say "had", but I know of at least one that is still
operating) 8 16-bit registers that are accessible by a whole range of
register-to-register instructions such as RMO (register move), RIN
(register increment), RAD (register add), ROR (register or), etc.

Register number 7 is the program counter.

Ponder the results of:

	RDE	7,7	decrement the program counter by one.

Hint:  this is a one-word instruction.  The TI980 is word-addressable,
not byte-addressable.
--

Dave Seaman
..!pur-ee!pucc-i:ags

"Against people who give vent to their loquacity
by extraneous bombastic circumlocution."