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Re: r3000 instruction set

To: "Kevin D. Kissell" <>
Subject: Re: r3000 instruction set
From: Eric Christopher <>
Date: Sun, 22 Feb 2004 19:37:29 -0800
Cc: Mark and Janice Juszczec <>,
In-reply-to: <001001c3f98e$2270dcc0$10eca8c0@grendel>
Original-recipient: rfc822;
References: <> <> <001001c3f98e$2270dcc0$10eca8c0@grendel>
On Sun, 2004-02-22 at 13:52, Kevin D. Kissell wrote:
> > Other than the responses you've already gotten, likely you'll need to
> > compile with -march=r3900(or -mcpu=r3900 if it's an old toolchain) since
> > the 3900 is missing a couple of r3000 instructions iirc.
> The 3900 family should run MIPS I code compiled for the R3000.

IIRC there were some standard MIPS I instructions that were not on the


Eric Christopher <>

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