Hi Maciej, > I thought we agreed the R5900 FPU is unusable for regular Linux software > and decided to go for full FPU emulation unconditionally. Yes, that's true, we are in agreement. I was unaware that the FPU emulation was complete enough to cover all registers (not only a set of instructions). Sorry about that. I will simply remove this patch then. > We could add a special R5900 mode, denoted with a dedicated > Tag_GNU_MIPS_ABI_FP attribute and MIPS ABI Flags FP ABI setting, which > would then enable hardware FPU for the selected task, but I suggest we > defer any actual code proposals until we have all the design details > settled. Agreed. :) > Etc. -- can you reuse MIPS I code here, i.e. use S.D? GAS should be > doing the right thing with `-march=r5900' (if not, then it has a bug). Possibly, I am somewhat unfamiliar with this area. So let's revisit this FPU issue after the initial submission. > You surely do not want all this MIPS32r2 stuff, or do you? No, not that I know of. Fredrik
