On Fri, Jan 18, 2002 at 10:31:17AM -0800, Ulrich Drepper wrote:
> > I don't see there are any registers we can use without breaking ABI.
> > On the other hand, can we change the mips kernel to save k0 or k1 for
> > user space?
These are reserved for kernel use. Saving them is not a good idea as it
would impact performance of TLB exception handlers which are extremly
> Are these registers which are readable by normal users but writable
> only in ring 0? If yes, this is definitely worthwhile (similar to how
> x86 works). The only problem will be the MIPS variants which don't
> have this register. I bet there are some.