minix/lib/libc/arch/m68k/hardfloat/floatunsidf.S

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/* $NetBSD: floatunsidf.S,v 1.1 2013/07/18 21:25:11 matt Exp $ */
/*-
* Copyright (c) 2013 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matt Thomas of 3am Software Foundry.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <machine/asm.h>
#if defined(LIBC_SCCS) && !defined(lint)
RCSID("$NetBSD: floatunsidf.S,v 1.1 2013/07/18 21:25:11 matt Exp $")
#endif /* LIBC_SCCS and not lint */
#ifdef __mcoldfire__
.section .rodata,"a"
.p2align 2
L2G: .double 0r2147483648.0
#endif
/* LINTSTUB: double __floatunsidf(unsigned int); */
ENTRY(__floatunsidf)
movl 4(%sp),%d0
jpl 1f
fmovel %d0,%fp0
#ifdef __SVR4_ABI__
rts
#else
jra Lret
#endif
1:
bclr #31,%d0
fmovel %d0,%fp0
#ifdef __mcoldfire__
LEA_LCL(L2G,%a0)
faddd (%a0),%fp0
#else
faddd #0r2147483648.0,%fp0
#endif
#ifndef __SVR4_ABI__
Lret:
fmoved %fp0,-(%sp)
movel (%sp)+,%d0
movel (%sp)+,%d1
#endif
rts
END(__floatunsidf)