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Diffstat (limited to 'src/libs/softfloat-3e/source/include/softfloat_types.h')
| -rw-r--r-- | src/libs/softfloat-3e/source/include/softfloat_types.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/libs/softfloat-3e/source/include/softfloat_types.h b/src/libs/softfloat-3e/source/include/softfloat_types.h new file mode 100644 index 00000000..a1219d3a --- /dev/null +++ b/src/libs/softfloat-3e/source/include/softfloat_types.h @@ -0,0 +1,121 @@ + +/*============================================================================ + +This C header file is part of the SoftFloat IEEE Floating-Point Arithmetic +Package, Release 3e, by John R. Hauser. + +Copyright 2011, 2012, 2013, 2014, 2015, 2017 The Regents of the University of +California. All rights reserved. + +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. + +=============================================================================*/ + +#ifndef softfloat_types_h +#define softfloat_types_h 1 + +#include <stdint.h> + +/*---------------------------------------------------------------------------- +| Types used to pass 16-bit, 32-bit, 64-bit, and 128-bit floating-point +| arguments and results to/from functions. These types must be exactly +| 16 bits, 32 bits, 64 bits, and 128 bits in size, respectively. Where a +| platform has "native" support for IEEE-Standard floating-point formats, +| the types below may, if desired, be defined as aliases for the native types +| (typically 'float' and 'double', and possibly 'long double'). +*----------------------------------------------------------------------------*/ +typedef struct { uint16_t v; } float16_t; +typedef struct { uint32_t v; } float32_t; +typedef struct { uint64_t v; } float64_t; +typedef struct { uint64_t v[2]; } float128_t; + +/*---------------------------------------------------------------------------- +| The format of an 80-bit extended floating-point number in memory. This +| structure must contain a 16-bit field named 'signExp' and a 64-bit field +| named 'signif'. +*----------------------------------------------------------------------------*/ +#ifdef LITTLEENDIAN +struct extFloat80M { uint64_t signif; uint16_t signExp; }; +# define EXTFLOAT80M_INIT( a_signExp, a_signif ) { a_signif, a_signExp } /* VBox */ +#else +struct extFloat80M { uint16_t signExp; uint64_t signif; }; +# define EXTFLOAT80M_INIT( a_signExp, a_signif ) { a_signExp, a_signif } /* VBox */ +#endif +#define EXTFLOAT80M_INIT_C( a_signExp, a_signif ) EXTFLOAT80M_INIT( a_signExp, UINT64_C( a_signif ) ) /* VBox */ +#define EXTFLOAT80M_INIT3( a_sign, a_signif, a_exp ) \ + EXTFLOAT80M_INIT( packToExtF80UI64( a_sign, a_exp ), a_signif) /* VBox */ +#define EXTFLOAT80M_INIT3_C( a_sign, a_signif, a_exp ) \ + EXTFLOAT80M_INIT3( a_sign, UINT64_C( a_signif ), a_exp ) /* VBox */ + +/*---------------------------------------------------------------------------- +| The type used to pass 80-bit extended floating-point arguments and +| results to/from functions. This type must have size identical to +| 'struct extFloat80M'. Type 'extFloat80_t' can be defined as an alias for +| 'struct extFloat80M'. Alternatively, if a platform has "native" support +| for IEEE-Standard 80-bit extended floating-point, it may be possible, +| if desired, to define 'extFloat80_t' as an alias for the native type +| (presumably either 'long double' or a nonstandard compiler-intrinsic type). +| In that case, the 'signif' and 'signExp' fields of 'struct extFloat80M' +| must align exactly with the locations in memory of the sign, exponent, and +| significand of the native type. +*----------------------------------------------------------------------------*/ +typedef struct extFloat80M extFloat80_t; + +/*---------------------------------------------------------------------------- +| VBox: The four globals as non-globals. +*----------------------------------------------------------------------------*/ +#ifndef VBOX_WITH_SOFTFLOAT_GLOBALS +# define VBOX_WITHOUT_SOFTFLOAT_GLOBALS +# define SOFTFLOAT_STATE_ARG pState +# define SOFTFLOAT_STATE_ARG_COMMA , pState +# define SOFTFLOAT_STATE_DECL softfloat_state_t *pState +# define SOFTFLOAT_STATE_DECL_COMMA , softfloat_state_t *pState +# define SOFTFLOAT_STATE_NOREF() (void)pState +typedef struct softfloat_state +{ + /* softfloat_tininess_beforeRounding or softfloat_tininess_afterRounding */ + uint8_t detectTininess; + /* softfloat_round_near_even and friends. */ + uint8_t roundingMode; + /* softfloat_flag_inexact and friends. */ + uint8_t exceptionFlags; + /** Masked exceptions (only underflow is relevant). */ + uint8_t exceptionMask; + /* extF80: rounding precsision: 32, 64 or 80 */ + uint8_t roundingPrecision; +} softfloat_state_t; +# define SOFTFLOAT_STATE_INIT_DEFAULTS() { softfloat_tininess_afterRounding, softfloat_round_near_even, 0, 0x3f, 80 } +#else +# undef VBOX_WITHOUT_SOFTFLOAT_GLOBALS +# define SOFTFLOAT_STATE_ARG +# define SOFTFLOAT_STATE_ARG_COMMA +# define SOFTFLOAT_STATE_DECL +# define SOFTFLOAT_STATE_DECL_COMMA +# define SOFTFLOAT_STATE_NOREF() (void)0 +#endif + +#endif + |