Path: utzoo!utgpu!attcan!uunet!husc6!mailrus!ncar!noao!asuvax!anasaz!john
From: john@anasaz.UUCP (John Moore)
Newsgroups: comp.arch
Subject: Gray to Binary (was Re: RISC v. CISC --more misconceptions)
Message-ID: <1454@anasaz.UUCP>
Date: 9 Nov 88 14:21:19 GMT
References: <156@gloom.UUCP> <18931@apple.Apple.COM> <40@sopwith.UUCP> <475@oracle.UUCP> <398@babbage.acc.virginia.edu>
Reply-To: john@anasaz.UUCP (John Moore)
Organization: Anasazi Inc, Phoenix AZ
Lines: 14

In article <398@babbage.acc.virginia.edu> mac3n@babbage.acc.virginia.edu (Alex Colvin) writes:
]Charles Simmons may remember the GE635's GTB (Gray to Binary) instruction,
]which executes a long chain of XORs, used to convert radar data to binary.
]We had real trouble coming up with another use for this.  Maybe Hypercube
]routing?
 GECOS-III (Later GCOS) used the GTB for a hash function in the
printer spooler (SYSOUT).


-- 
John Moore (NJ7E)           {decvax, ncar, ihnp4}!noao!nud!anasaz!john
(602) 861-7607 (day or eve) {gatech, ames, rutgers}!ncar!...
The opinions expressed here are obviously not mine, so they must be
someone else's. :-)