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From: | Alexander Graf |
Subject: | Re: [Qemu-devel] [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
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