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Re: [Qemu-ppc] [Qemu-devel] [V4 PATCH 17/22] target-ppc: Fix and enable


From: Richard Henderson
Subject: Re: [Qemu-ppc] [Qemu-devel] [V4 PATCH 17/22] target-ppc: Fix and enable fri[mnpz]
Date: Wed, 08 Jan 2014 10:32:56 -0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0

On 01/07/2014 08:06 AM, Tom Musta wrote:
> The fri* series of instructions was introduced prior to ISA 2.06 and
> is supported on Power7 and Power8 hardware.  However, the instruction
> is still considered illegal in the P7 and P8 QEMU emulation models.
> This patch enables these instructions for the P7 and P8 machines.
> 
> Also, the existing helper is modified to correctly handle some of
> the boundary cases (NaNs and the inexact flag).
> 
> Signed-off-by: Tom Musta <address@hidden>
> ---
> V4: frin changed to use "ties away" rounding mode per Richard Henderson's
> review.  Modified NaN handling.  Proper handling of stickiness of
> the inexact flag.  Added to P7+ model.
> 
>  target-ppc/fpu_helper.c     |   18 +++++++++++-------
>  target-ppc/translate_init.c |    3 +++
>  2 files changed, 14 insertions(+), 7 deletions(-)

Reviewed-by: Richard Henderson <address@hidden>


r~



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