do_one_mathemu
static int do_one_mathemu(u32 insn, unsigned long *fsr, unsigned long *fregs);
retcode = do_one_mathemu(insn, &fpt->thread.fsr, fpt->thread.float_regs);
retcode = do_one_mathemu(fpt->thread.fpqueue[i].insn, &(fpt->thread.fsr), fpt->thread.float_regs);