xref: /minix3/lib/libc/arch/vax/gen/modf.S (revision e415d488727a332a2c69df018aa35e2cecf4148a)
12fe8fb19SBen Gras/*
22fe8fb19SBen Gras * Copyright (c) 1983, 1993
32fe8fb19SBen Gras *	The Regents of the University of California.  All rights reserved.
42fe8fb19SBen Gras *
52fe8fb19SBen Gras * Redistribution and use in source and binary forms, with or without
62fe8fb19SBen Gras * modification, are permitted provided that the following conditions
72fe8fb19SBen Gras * are met:
82fe8fb19SBen Gras * 1. Redistributions of source code must retain the above copyright
92fe8fb19SBen Gras *    notice, this list of conditions and the following disclaimer.
102fe8fb19SBen Gras * 2. Redistributions in binary form must reproduce the above copyright
112fe8fb19SBen Gras *    notice, this list of conditions and the following disclaimer in the
122fe8fb19SBen Gras *    documentation and/or other materials provided with the distribution.
132fe8fb19SBen Gras * 3. Neither the name of the University nor the names of its contributors
142fe8fb19SBen Gras *    may be used to endorse or promote products derived from this software
152fe8fb19SBen Gras *    without specific prior written permission.
162fe8fb19SBen Gras *
172fe8fb19SBen Gras * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
182fe8fb19SBen Gras * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
192fe8fb19SBen Gras * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
202fe8fb19SBen Gras * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
212fe8fb19SBen Gras * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
222fe8fb19SBen Gras * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
232fe8fb19SBen Gras * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
242fe8fb19SBen Gras * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
252fe8fb19SBen Gras * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
262fe8fb19SBen Gras * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
272fe8fb19SBen Gras * SUCH DAMAGE.
282fe8fb19SBen Gras */
292fe8fb19SBen Gras
30*e415d488SLionel Sambuc#include "DEFS.h"
31*e415d488SLionel Sambuc
322fe8fb19SBen Gras#if defined(LIBC_SCCS) && !defined(lint)
332fe8fb19SBen Gras	/* .asciz "@(#)modf.s	8.1 (Berkeley) 6/4/93" */
34*e415d488SLionel SambucRCSID("$NetBSD: modf.S,v 1.5 2011/01/25 02:38:15 matt Exp $")
352fe8fb19SBen Gras#endif /* LIBC_SCCS and not lint */
362fe8fb19SBen Gras
372fe8fb19SBen Gras/*
382fe8fb19SBen Gras * double modf (value, iptr)
392fe8fb19SBen Gras * double value, *iptr;
402fe8fb19SBen Gras *
412fe8fb19SBen Gras * Modf returns the fractional part of "value",
422fe8fb19SBen Gras * and stores the integer part indirectly through "iptr".
432fe8fb19SBen Gras */
442fe8fb19SBen Gras
452fe8fb19SBen GrasENTRY(modf, 0)
462fe8fb19SBen Gras	emodd	4(%ap),$0,$0f1.0,%r2,%r0
472fe8fb19SBen Gras	jvs	1f			# integer overflow
482fe8fb19SBen Gras	cvtld	%r2,*12(%ap)
492fe8fb19SBen Gras	ret
502fe8fb19SBen Gras1:
512fe8fb19SBen Gras	subd3	%r0,4(%ap),*12(%ap)
522fe8fb19SBen Gras	ret
53*e415d488SLionel SambucEND(modf)
542fe8fb19SBen Gras
552fe8fb19SBen GrasENTRY(modff, 0)
562fe8fb19SBen Gras	emodf	4(%ap),$0,$0f1.0,%r2,%r0
572fe8fb19SBen Gras	jvs	1f			# integer overflow
582fe8fb19SBen Gras	cvtlf	%r2,*8(%ap)
592fe8fb19SBen Gras	ret
602fe8fb19SBen Gras1:
612fe8fb19SBen Gras	subf3	%r0,4(%ap),*8(%ap)
622fe8fb19SBen Gras	ret
63*e415d488SLionel SambucEND(modff)
64