2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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32 #if defined(LIBC_SCCS) && !defined(lint)
33 /* .asciz "@(#)modf.s 8.1 (Berkeley) 6/4/93" */
34 RCSID("$NetBSD: modf.S,v 1.5 2011/01/25 02:38:15 matt Exp $")
35 #endif /* LIBC_SCCS and not lint */
38 * double modf (value, iptr)
39 * double value, *iptr;
41 * Modf returns the fractional part of "value",
42 * and stores the integer part indirectly through "iptr".
46 emodd 4(%ap),$0,$0f1.0,%r2,%r0
47 jvs 1f # integer overflow
51 subd3 %r0,4(%ap),*12(%ap)
56 emodf 4(%ap),$0,$0f1.0,%r2,%r0
57 jvs 1f # integer overflow
61 subf3 %r0,4(%ap),*8(%ap)