Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!samsung!munnari.oz.au!metro!cluster!bruce
From: bruce@cs.su.oz (Bruce Janson)
Newsgroups: comp.sys.mips
Subject: Desperately Seeking Bltzal and Bgezal.
Summary: Are the bltzal and bgezal mips instructions used?
Keywords: bltzal bgezal
Message-ID: <1179@cluster.cs.su.oz>
Date: 6 Sep 90 00:38:01 GMT
Sender: news@cluster.cs.su.oz
Reply-To: bruce@cluster.cs.su.oz (Bruce Janson)
Lines: 22

Use of dis on large numbers of executables on our MIPSCo
machines has revealed no instances of the instructions
bltzal or bgezal.
It was my understanding that instructions were included
in the MIPS instruction set only if their addition
could be justified on the basis of an X% performance
increase (where X is some randomly chosen number like maybe 1).
So, how do bltzal and bgezal increase performance without
ever being executed?

Cheers,
bruce.

Bruce Janson
Basser Department of Computer Science
University of Sydney
Sydney, N.S.W., 2006
AUSTRALIA

Internet:	bruce@basser.cs.su.oz.au
Telephone:	+61-2-692-3264
Fax:		+61-2-692-3838