/*
* 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
* 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 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include "libm.h"
frndint / [z],z
fxch / z, [z]
.shortcut:
flds 4(%esp) / push x (=arg)
fldl2t / push log2(10) }NOT for xtndd_dbl
fmulp %st,%st(1) / z = x*log2(10) }NOT for xtndd_dbl
f2xm1 / 2**z - 1
fld1 / 1,2**z - 1
faddp %st,%st(1) / 2**z = 10**x
ret
.not_finite:
ja .NaN_or_pinf / branch if x is NaN
movl 4(%esp),%eax / eax <-- x
andl $0x80000000,%eax / here, x is infinite, but +/-?
jz .NaN_or_pinf / branch if x = +INF
fldz / Here, x = -inf, so return 0
ret
.NaN_or_pinf:
/ Here, x = NaN or +inf, so load x and return immediately.
flds 4(%esp)
fwait
ret
.align 4
SET_SIZE(exp10f)