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Date: Wed, 15 Jun 2005 16:30:37 +0100 (BST)
From: "Maciej W. Rozycki" <macro@linux-mips.org>
To: 7eggert@gmx.de
Cc: Gene Heskett <gene.heskett@verizon.net>, cutaway@bellsouth.net,
       linux-kernel@vger.kernel.org
Subject: Re: .../asm-i386/bitops.h  performance improvements
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On Wed, 15 Jun 2005, Bodo Eggert wrote:

> lea is an 8086 instruction. All clones have it in it's basic form. However,
> the multiplicator is not documented for i486, therefore it will be a i586
> extension.

 Huh?  The SIB byte has been added in the original i386 with 32-bit 
addressing.

  Maciej