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From: Aleksandar Markovic <amarkovic@wavecomp.com>
Date: Mon, 29 Oct 2018 15:03:35 +0000
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Subject: Re: [Qemu-devel] [PATCH] target/mips: Support Toshiba specific
 three-operand MADD and MADDU
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To: Fredrik Noring <noring@nocrew.org>
Cc: Richard Henderson <richard.henderson@linaro.org>, "Maciej W. Rozycki" <macro@linux-mips.org>, =?iso-8859-1?Q?Philippe_Mathieu-Daud=E9?= <f4bug@amsat.org>, Aurelien Jarno <aurelien@aurel32.net>, "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>, =?iso-8859-1?Q?J=FCrgen_Urban?= <JuergenUrban@gmx.de>

> From: Fredrik Noring <noring@nocrew.org>
> Subject: Re: [PATCH] target/mips: Support Toshiba specific three-operand =
MADD and MADDU
>=20
> Hi Aleksandar,
>=20
> > Without TARGET_MIPS64, we can't say we emulate R5900 - we are emulating
> > some other CPU that never existed.
> >
> > Convince me that I am wrong.
>=20
> R5900 O32 is usable.

Absolutely not. This kind of emulation infidelity can't be in QEMU upstream=
. Even one step further, this should be forbidden, impossible to build.

Thanks,
Aleksandar=