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Re: [Qemu-ppc] [PATCH 0/3] target/ppc: floating point multiply-add fixes
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From: |
Nikunj A Dadhania |
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Subject: |
Re: [Qemu-ppc] [PATCH 0/3] target/ppc: floating point multiply-add fixes |
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Date: |
Sun, 05 Mar 2017 10:57:53 +0530 |
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User-agent: |
Notmuch/0.21 (https://notmuchmail.org) Emacs/25.0.94.1 (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
instructions.
Regards
Nikunj