bionic/libm/sh/_fpmath.h
2009-08-31 16:25:42 +09:00

59 lines
2.1 KiB
C

/*
* Copyright (C) 2009 Android Open Source Project, All rights reserved.
* Derived from "bionic/libm/arm/_fpmath.h"
* Copyright (c) 2002, 2003 David Schultz <das@FreeBSD.ORG>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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 COPYRIGHT HOLDERS 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
* COPYRIGHT OWNER 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.
*/
/*
* Assumes that 'long double' on SH-linux is just an alias for 'double'.
*/
union IEEEl2bits {
long double e;
struct {
#if __BYTE_ORDER == __LITTLE_ENDIAN
unsigned int manl :32;
unsigned int manh :20;
unsigned int exp :11;
unsigned int sign :1;
#elif __BYTE_ORDER == __BIG_ENDIAN
unsigned int sign :1;
unsigned int exp :11;
unsigned int manh :20;
unsigned int manl :32;
#endif
} bits;
};
/*
* LDBL_NBIT is a mask indicating the position of the integer
* bit in a long double. But SH4 does not support it.
*/
#define LDBL_NBIT 0
#define mask_nbit_l(u) ((void)0)
#define LDBL_MANH_SIZE 20
#define LDBL_MANL_SIZE 32