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Date:   Wed, 28 Sep 2011 14:33:05 +0200
From:   Ralf Baechle <ralf@linux-mips.org>
To:     binutils@sourceware.org, linux-mips@linux-mips.org,
        David Kuehling <dvdkhlng@gmx.de>
Subject: $ta0 .. $ta3 registers in O32 on MIPS
Message-ID: <20110928123305.GA1971@linux-mips.org>
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The register names $ta0 .. $ta3 were added by SGI for N32 / N64 code.
Because these reference $8 .. $11 just like $t0 .. $t3 in the O32 ABI
their availability in O32 as well appears dangerous, if not a bug:

$ cat s.s 
	addu	$ta0, $ta0
$ mips-linux-as -o s.o s.s
$ file s.o
s.o: ELF 32-bit MSB relocatable, MIPS, MIPS-I version 1 (SYSV), not stripped
$

I was expecting an error message and I'm wondering, was this intentional?

  Ralf