lib/libc/arch/hppa/gen/fpgetround.c

   1 /*      $NetBSD: fpgetround.c,v 1.5 2012/03/23 09:34:09 skrll Exp $     */
   2
   3 /*      $OpenBSD: fpgetround.c,v 1.3 2002/10/21 18:41:05 mickey Exp $   */
   4
   5 /*
   6  * Written by Miodrag Vallat.  Public domain
   7  */
   8
   9 #include <sys/cdefs.h>
  10 #if defined(LIBC_SCCS) && !defined(lint)
  11 __RCSID("$NetBSD: fpgetround.c,v 1.5 2012/03/23 09:34:09 skrll Exp $");
  12 #endif /* LIBC_SCCS and not lint */
  13
  14 #include <sys/types.h>
  15 #include <ieeefp.h>
  16
  17 fp_rnd
  18 fpgetround(void)
  19 {
  20         uint64_t fpsr;
  21
  22         __asm volatile("fstd %%fr0,0(%1)" : "=m" (fpsr) : "r" (&fpsr));
  23         return ((fp_rnd)(fpsr >> 41) & 0x3);
  24 }