1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  23  */
  24 /*
  25  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  26  * Use is subject to license terms.
  27  */
  28 
  29         .file   "floorl.s"
  30 
  31 #include "libm.h"
  32 LIBM_ANSI_PRAGMA_WEAK(ceill,function)
  33 LIBM_ANSI_PRAGMA_WEAK(floorl,function)
  34 #include "libm_synonyms.h"
  35 
  36         ENTRY(ceill)
  37         subq    $16,%rsp
  38         fstcw   (%rsp)
  39         fldt    24(%rsp)
  40         movw    (%rsp),%cx
  41         orw     $0x0c00,%cx
  42         xorw    $0x0400,%cx
  43         movw    %cx,4(%rsp)
  44         fldcw   4(%rsp)                 / set RD = up
  45         frndint
  46         fstcw   4(%rsp)                 / restore RD
  47         movw    4(%rsp),%dx
  48         andw    $0xf3ff,%dx
  49         movw    (%rsp),%cx
  50         andw    $0x0c00,%cx
  51         orw     %dx,%cx
  52         movw    %cx,(%rsp)
  53         fldcw   (%rsp)                  / restore RD
  54         addq    $16,%rsp
  55         ret
  56         .align  16
  57         SET_SIZE(ceill)
  58 
  59 
  60         ENTRY(floorl)
  61         subq    $16,%rsp
  62         fstcw   (%rsp)
  63         fldt    24(%rsp)
  64         movw    (%rsp),%cx
  65         orw     $0x0c00,%cx
  66         xorw    $0x0800,%cx
  67         movw    %cx,4(%rsp)
  68         fldcw   4(%rsp)                 / set RD = down
  69         frndint
  70         fstcw   4(%rsp)                 / restore RD
  71         movw    4(%rsp),%dx
  72         andw    $0xf3ff,%dx
  73         movw    (%rsp),%cx
  74         andw    $0x0c00,%cx
  75         orw     %dx,%cx
  76         movw    %cx,(%rsp)
  77         fldcw   (%rsp)                  / restore RD
  78         addq    $16,%rsp
  79         ret
  80         .align  16
  81         SET_SIZE(floorl)