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 performance sensitive. > 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. No. Ralf
