cgd@broadcom.com asked;

> Looks mostly good to me, with one obvious question:
>
> what goes in f_regs[0] ?
>
> I mean, OK, OK, it's nice to have the array sized as you'd expect,
> but, uh, since you _did_ tout smaller space consumption for these
> things, why not squish the obvious register.

Well, inconsistencies between struct frame, struct regs and struct
sigcontext would be errorprone for the time being.  If the new was intended
a bit smaller, either of scratch register K0 or K1 could be thrown away,
while the remainings be squashed in other ways, but...

Toru Nishimura/ALKYL Technology