Re: [Qemu-devel] [PATCH 5/x] ppc: Convert op_load_gpr_{T0, T1, T2} to TCG

[Thiemo Seufer]

Andreas Färber wrote:
> Aurélien,
>
> Am 03.09.2008 um 14:41 schrieb Aurélien Jarno:
>
>> This optimization has been done with dyngen in mind, we surely don't
>> want to keep it with TCG.
>>
>> I currently have plenty of time, but almost no network (travelling),  
>> so
>> I'll work on implementing a solution, and commit the result most  
>> probably
>> tomorrow morning.
>
> I already have a solution cooking for cpu_T64 and SPE, including  
> improved TCGv setup. It'll be no problem for me to incorporate your and 
> Thiemo's comments in my revised patch.
>
> SPE will be rarely used anyway I guess,

JFTR, there are Freescale MPC85xx boards which use the SPE floating
point support (and thus have a different ABI than normal Linux PPC).

I'm currently working on a Debian port for it and tried to use Qemu's
system emulation, however I didn't manage to get it to work in the
limited time available.

So I'm less concerned with SPE performance and more with getting
usable SPE support at all. :-)


Thiemo