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Re: MIPS checksum bug

To: Thiemo Seufer <>
Subject: Re: MIPS checksum bug
From: "Maciej W. Rozycki" <>
Date: Sat, 20 Sep 2008 00:18:49 +0100 (BST)
Cc: Atsushi Nemoto <>,,
In-reply-to: <>
Original-recipient: rfc822;
References: <> <> <> <> <> <>
On Fri, 19 Sep 2008, Thiemo Seufer wrote:

> >  Unfortunately you can't zero-extend with a single instruction (you can
> > use a single sll(v) to sign-extend), unless the R2 ISA provides some
> > suitable oddity (which I haven't checked).
> AFAIR dext can do this for MIPS64 R2.

 Yeah, I would have thought if anything, it would be something as odd as


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