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

   1 /* Copyright (C) 1993, 1995, 1996, 1997, 2003 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 Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the 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    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    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 #elif defined PIC
  34         lda     sp, -16(sp)
  35         .prologue 0
  36 #else
  37         ldgp    gp, 0(pv)
  38         lda     sp, -16(sp)
  39         .prologue 1
  40 #endif
  41
  42         stq     a0, 0(sp)
  43         mov     sp, a1
  44         ldi     a0, SSI_IEEE_FP_CONTROL
  45         ldi     v0, __NR_osf_setsysinfo
  46         call_pal PAL_callsys
  47
  48         bne     a3, $error
  49
  50         lda     sp, 16(sp)
  51         ret
  52
  53 $error:
  54         lda     sp, 16(sp)
  55         SYSCALL_ERROR_HANDLER
  56
  57         END(__ieee_set_fp_control)
  58
  59 weak_alias (__ieee_set_fp_control, ieee_set_fp_control)