arch/ppc/math-emu/mtfsfi.c

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