Re: RISC Machine Data Structure Word Alignment Problems?

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Article #22103

#22103

From: khb Keith Bierman - SPD Advanced...
Date: Thu, 01 Feb 1990 19:44

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In article <1990Jan31.174500.10553@utzoo.uucp> henry@utzoo.uucp (Henry Spencer) writes:

   >1) In the hardware, perhaps taking a performance hit on "misaligned" data.
   >2) In the compilers
   >3) Explicitly in the program.

   any of the above.  (Sun-3 C does #1, Mips C does #2 on request, SPARC C
   does #3.)  It does not *promise* anything but the lowest common denominator,
   however, to wit number 3.

Sun's compilers have a -misalign option.
--
Keith H. Bierman    |*My thoughts are my own. !! kbierman@Eng.Sun.COM
It's Not My Fault   | MTS --Only my work belongs to Sun* kbierman%eng@sun.com
I Voted for Bill &  | Advanced Languages/Floating Point Group            
Opus                | "When the going gets Weird .. the Weird turn PRO"

"There is NO defense against the attack of the KILLER MICROS!"
			Eugene Brooks

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!samsung!brutus.cs.uiuc.edu!apple!sun-barr!newstop!sun!sun-bb!khb
From: khb@chiba.kbierman@sun.com (Keith Bierman - SPD Advanced Languages)
Newsgroups: comp.arch
Subject: Re: RISC Machine Data Structure Word Alignment Problems?
Message-ID: <KHB.90Feb1114414@chiba.kbierman@sun.com>
Date: 1 Feb 90 19:44:14 GMT
References: <1810@sunquest.UUCP> <1495@east.East.Sun.COM> <1990Jan31.174500.10553@utzoo.uucp>
Sender: news@sun.Eng.Sun.COM
Organization: Sun Microsystems
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In-reply-to: henry@utzoo.uucp's message of 31 Jan 90 17:45:00 GMT

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