Path: utzoo!mnetor!uunet!husc6!cca!mirror!ima!johnl
From: johnl@ima.UUCP
Newsgroups: comp.compilers
Subject: Re: What is a scoreboard?
Message-ID: <824@ima.ISC.COM>
Date: 24 Dec 87 19:20:16 GMT
References: <808@ima.ISC.COM>
Sender: johnl@ima.ISC.COM
Reply-To: uiucdcs!uunet!geac!daveb (David Collier-Brown)
Organization: The little blue rock next to that twinkly star.
Lines: 20
Summary: See also "register history"
Approved: compilers@ima.UUCP

In article <808@ima.ISC.COM> xyzzy!meissner@mcnc.org writes:
|In article <797@ima.ISC.COM>, ...!harvard!talcott!motcoh!mark writes:
|> Can someone explain the technique of using "scoreboards" in 
|> compiler development?  Any references?
|
|    I don't have any hard references, but when I ran into the CDC 6600
|hardware it was described as having a hardware scoreboard. 

  It could also be a misnomer for a "register history", which is
useful on machines without any visible parallellization, to keep
track of what register currently holds what variable or value.  For
an example, see:
  Jim Welsh and Michael McKag, "Structures Systems Programming",
Englewood Cliffs, N.J. (Prentice-Hall), 1980.

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