linux/arch/powerpc/math-emu/mtfsfi.c
<<
>>
Prefs
   1#include <linux/types.h>
   2#include <linux/errno.h>
   3#include <asm/uaccess.h>
   4
   5#include <asm/sfp-machine.h>
   6#include <math-emu/soft-fp.h>
   7
   8int
   9mtfsfi(unsigned int crfD, unsigned int IMM)
  10{
  11        u32 mask = 0xf;
  12
  13        if (!crfD)
  14                mask = 9;
  15
  16        __FPU_FPSCR &= ~(mask << ((7 - crfD) << 2));
  17        __FPU_FPSCR |= (IMM & 0xf) << ((7 - crfD) << 2);
  18
  19#ifdef DEBUG
  20        printk("%s: %d %x: %08lx\n", __func__, crfD, IMM, __FPU_FPSCR);
  21#endif
  22
  23        return 0;
  24}
  25