fmod.s revision 25c28e83beb90e7c80452a7c818c5e6f73a07dc8
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
.file "fmod.s"
#include "libm.h"
LIBM_ANSI_PRAGMA_WEAK(fmod,function)
#include "libm_synonyms.h"
#include "libm_protos.h"
ENTRY(fmod)
movl 16(%esp),%eax / eax <-- hi_32(y)
andl $0x7fffffff,%eax / eax <-- hi_32(|y|)
orl 12(%esp),%eax / eax <-- lo_32(y)|hi_32(|y|)
je .zero
fldl 12(%esp) / load arg y
fldl 4(%esp) / load arg x
.mod_loop:
fprem / partial fmod
fstsw %ax / store status word
andw $0x400,%ax / check for incomplete reduction
jne .mod_loop / while incomplete, do fprem again
fstp %st(1)
ret
.zero:
pushl %ebp
movl %esp,%ebp
PIC_SETUP(1)
pushl $27 / case 27 in _SVID_libm_err
pushl 20(%ebp) / pass x
pushl 16(%ebp)
pushl 12(%ebp) / pass y
pushl 8(%ebp)
call PIC_F(_SVID_libm_err)
addl $20,%esp
PIC_WRAPUP
leave
ret
.align 4
SET_SIZE(fmod)