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 "rint.s"
  30 
  31 #include "libm.h"
  32 LIBM_ANSI_PRAGMA_WEAK(rint,function)
  33 #include "libm_synonyms.h"
  34 
  35         ENTRY(rint)
  36         fldl    4(%esp)                 / load x
  37         movl    8(%esp),%eax            / eax <-- hi_32(x)
  38         andl    $0x7fffffff,%eax        / eax <-- hi_32(|x|)
  39         cmpl    $0x43300000,%eax        / is |x| >= 2**52?
  40         jae     .done                   / if so, branch (already integral)
  41         frndint                         / [x], per rounding mode
  42 .done:
  43         fwait
  44         ret
  45         .align  4
  46         SET_SIZE(rint)

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

  33 
  34         ENTRY(rint)
  35         fldl    4(%esp)                 / load x
  36         movl    8(%esp),%eax            / eax <-- hi_32(x)
  37         andl    $0x7fffffff,%eax        / eax <-- hi_32(|x|)
  38         cmpl    $0x43300000,%eax        / is |x| >= 2**52?
  39         jae     .done                   / if so, branch (already integral)
  40         frndint                         / [x], per rounding mode
  41 .done:
  42         fwait
  43         ret
  44         .align  4
  45         SET_SIZE(rint)