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Re: [Qemu-ppc] [PATCH 0/3] target/ppc: floating point multiply-add fixes

From: Nikunj A Dadhania
Subject: Re: [Qemu-ppc] [PATCH 0/3] target/ppc: floating point multiply-add fixes
Date: Sun, 05 Mar 2017 10:57:53 +0530
User-agent: Notmuch/0.21 (https://notmuchmail.org) Emacs/ (x86_64-redhat-linux-gnu)

Programmingkid <address@hidden> writes:

> On Mar 4, 2017, at 8:53 AM, Nikunj A Dadhania wrote:
>> G 3 <address@hidden> writes:
>>> On Mar 3, 2017, at 4:59 AM, address@hidden wrote:
>>> Is there a program that could be used to test the floating point  
>>> instructions in QEMU for accuracy? 
>> I am not aware of any such program. I do the unit test of the
>> instruction and then use risu to verify with either real hardware or
>> system simulator.
> risu works on PowerPC? 

Yes, Ziviani ported it.

> https://wiki.linaro.org/PeterMaydell/Risu
> This page says its only for ARM.

Oh, that page would need updation.

> I was thinking about your patches. They comply with ISA 3.0, but do
> they comply with older PowerPC chips like the PowerPC 750?

We have added older instructions, and its simple to add missing


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