sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S

   1 /* Copyright (C) 1993, 1995, 1996, 1997 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by David Mosberger <davidm@azstarnet.com>, 1995.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 #include <sysdep.h>
  21
  22 #define SSI_IEEE_FP_CONTROL     14
  23
  24 LEAF(__ieee_set_fp_control, 16)
  25 #ifdef PROF
  26         ldgp    gp, 0(pv)
  27         lda     sp, -16(sp)
  28         .set noat
  29         lda     AT, _mcount
  30         jsr     AT, (AT), _mcount
  31         .set at
  32         .prologue 1
  33 #else
  34         lda     sp, -16(sp)
  35         .prologue 0
  36 #endif
  37
  38         stq     a0, 0(sp)
  39         mov     sp, a1
  40         ldi     a0, SSI_IEEE_FP_CONTROL
  41         ldi     v0, __NR_osf_setsysinfo
  42         call_pal PAL_callsys
  43
  44         bne     a3, $error
  45
  46         lda     sp, 16(sp)
  47         ret
  48
  49 $error:
  50 #ifndef PROF
  51         br      gp, 1f
  52 1:      ldgp    gp, 0(gp)
  53 #endif
  54         lda     sp, 16(sp)
  55         jmp     zero, __syscall_error
  56
  57         END(__ieee_set_fp_control)
  58
  59 weak_alias (__ieee_set_fp_control, ieee_set_fp_control)