[ECOS] PowerPC HAL patches.

[Sergei Organov]

Jesper Skov <jskov@redhat.com> writes:
[...]
> 
> Sergei> 2. 'hal_variant_load' macro isn't called in
> Sergei> exception/interrupt management code while 'hal_variant_store'
> Sergei> is. Again currently all of them are just empty.
> 
> This is a mistake. I've put it on my todo list as well.  But
> presumably this is the macros you are using to load/restore FPU state,
> so maybe you'll beat me to fixing this?!? :)

No, I don't use it. I just noticed it when I added hal_fpu_save/hal_fpu_load to
the vectors.S (I'm trying to be as close to the MIPS HAL as possible). Well, I
added this call in my version anyway, so it will not be missed even if you
forget to add it :-)

> 
> Jesper