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   "truncl.s"
  30 
  31 #include "libm.h"
  32 LIBM_ANSI_PRAGMA_WEAK(truncl,function)
  33 #include "libm_synonyms.h"
  34 
  35         ENTRY(truncl)
  36         movl    %esp,%eax
  37         subl    $8,%esp
  38         fstcw   -8(%eax)
  39         fldt    4(%eax)
  40         movw    -8(%eax),%cx
  41         orw     $0x0c00,%cx
  42         movw    %cx,-4(%eax)
  43         fldcw   -4(%eax)                / set RD = to_zero
  44         frndint
  45         fstcw   -4(%eax)
  46         movw    -4(%eax),%dx
  47         andw    $0xf3ff,%dx
  48         movw    -8(%eax),%cx
  49         andw    $0x0c00,%cx
  50         orw     %dx,%cx
  51         movw    %cx,-8(%eax)
  52         fldcw   -8(%eax)                / restore RD
  53         addl    $8,%esp

  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   "truncl.s"
  30 
  31 #include "libm.h"
  32 LIBM_ANSI_PRAGMA_WEAK(truncl,function)

  33 
  34         ENTRY(truncl)
  35         movl    %esp,%eax
  36         subl    $8,%esp
  37         fstcw   -8(%eax)
  38         fldt    4(%eax)
  39         movw    -8(%eax),%cx
  40         orw     $0x0c00,%cx
  41         movw    %cx,-4(%eax)
  42         fldcw   -4(%eax)                / set RD = to_zero
  43         frndint
  44         fstcw   -4(%eax)
  45         movw    -4(%eax),%dx
  46         andw    $0xf3ff,%dx
  47         movw    -8(%eax),%cx
  48         andw    $0x0c00,%cx
  49         orw     %dx,%cx
  50         movw    %cx,-8(%eax)
  51         fldcw   -8(%eax)                / restore RD
  52         addl    $8,%esp