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Re: [Qemu-ppc] [2.3 V2 PATCH 0/6] target-ppc: Assorted Floating Point Bu
From: |
Alexander Graf |
Subject: |
Re: [Qemu-ppc] [2.3 V2 PATCH 0/6] target-ppc: Assorted Floating Point Bugs and Cleanup |
Date: |
Thu, 20 Nov 2014 15:51:09 +0100 |
User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:31.0) Gecko/20100101 Thunderbird/31.2.0 |
On 12.11.14 22:45, Tom Musta wrote:
> This patch series corrects some issues with floating point emulation
> on Power.
>
> Patch 1 corrects a corner case in the square root instructions, which
> incorrectly react to NaN whose sign bit is a 1.
>
> Patches 2-6 correct a rather pervasive problem with modeling of the CR[1]
> field (i.e. the "dot form" instructions of the FPU).
>
> The bugs were found by running random test patterns through actual Power
> hardware (P7 and P8) and comparing against QEMU.
>
> The patches conflict quite a bit with Paolo's series that splits CR into
> 32 one bit registers. Paolo: is V3 of your patch series coming anytime
> soon?
>
> V2 Reworked patches to pick up the gen_set_cr1_from_fpscr() utility that
> was recently added by Paolo Bonzini.
Thanks, applied all to ppc-next-2.3.
Alex
- [Qemu-ppc] [2.3 V2 PATCH 0/6] target-ppc: Assorted Floating Point Bugs and Cleanup, Tom Musta, 2014/11/12
- [Qemu-ppc] [2.3 V2 PATCH 3/6] target-ppc: mffs. Should Set CR1 from FPSCR Bits, Tom Musta, 2014/11/12
- [Qemu-ppc] [2.3 V2 PATCH 4/6] target-ppc: Fully Migrate to gen_set_cr1_from_fpscr, Tom Musta, 2014/11/12
- [Qemu-ppc] [2.3 V2 PATCH 6/6] target-ppc: Eliminate set_fprf Argument From helper_compute_fprf, Tom Musta, 2014/11/12
- [Qemu-ppc] [2.3 V2 PATCH 5/6] target-ppc: Eliminate set_fprf Argument From gen_compute_fprf, Tom Musta, 2014/11/12
- Re: [Qemu-ppc] [2.3 V2 PATCH 0/6] target-ppc: Assorted Floating Point Bugs and Cleanup,
Alexander Graf <=