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-rw-r--r--StdLib/Include/x86/ieee.h107
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diff --git a/StdLib/Include/x86/ieee.h b/StdLib/Include/x86/ieee.h
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--- a/StdLib/Include/x86/ieee.h
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-/* $NetBSD: ieee.h,v 1.9.32.1 2007/05/07 19:49:10 pavel Exp $ */
-
-/*
- * Copyright (c) 1992, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This software was developed by the Computer Systems Engineering group
- * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
- * contributed to Berkeley.
- *
- * All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Lawrence Berkeley Laboratory.
- *
- * 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.
- * 3. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
- *
- * @(#)ieee.h 8.1 (Berkeley) 6/11/93
- */
-
-/*
- * ieee.h defines the machine-dependent layout of the machine's IEEE
- * floating point. It does *not* define (yet?) any of the rounding
- * mode bits, exceptions, and so forth.
- */
-
-#include <sys/ieee754.h>
-
-#define EXT_EXPBITS 15
-#define EXT_FRACHBITS 32
-#define EXT_FRACLBITS 32
-#define EXT_FRACBITS (EXT_FRACLBITS + EXT_FRACHBITS)
-
-#define EXT_TO_ARRAY32(u, a) do { \
- (a)[0] = (uint32_t)(u).extu_ext.ext_fracl; \
- (a)[1] = (uint32_t)(u).extu_ext.ext_frach; \
-} while(/*CONSTCOND*/0)
-
-/*
- * struct ieee_ext is the raw storage layout of the 80-bit
- * extended-precision type as implemented by the FPU. Per the
- * respective ABI specifications, it is followed by a tail padding of
- *
- * amd64: 48 bits,
- * i386: 16 bits.
- */
-struct ieee_ext {
- u_int ext_fracl:EXT_FRACLBITS;
- u_int ext_frach:EXT_FRACHBITS;
-#if 0
- u_int ext_int:1;
-#endif
- u_int ext_exp:EXT_EXPBITS;
- u_int ext_sign:1;
-};
-
-/*
- * Floats whose exponent is in [1..INFNAN) (of whatever type) are
- * `normal'. Floats whose exponent is INFNAN are either Inf or NaN.
- * Floats whose exponent is zero are either zero (iff all fraction
- * bits are zero) or subnormal values.
- *
- * A NaN is a `signalling NaN' if its QUIETNAN bit is clear in its
- * high fraction; if the bit is set, it is a `quiet NaN'.
- */
-#define EXT_EXP_INFNAN 32767
-
-#if 0
-#define SNG_QUIETNAN (1 << 22)
-#define DBL_QUIETNAN (1 << 19)
-#define EXT_QUIETNAN (1 << 30)
-#endif
-
-/*
- * Exponent biases.
- */
-#define EXT_EXP_BIAS 16383
-
-/*
- * Convenience data structures.
- */
-union ieee_ext_u {
- long double extu_ld;
- struct ieee_ext extu_ext;
-};