| |
| /*============================================================================ |
| |
| This C header file is part of the SoftFloat IEEE Floating-Point Arithmetic |
| Package, Release 3, by John R. Hauser. |
| |
| Copyright 2011, 2012, 2013, 2014 The Regents of the University of California |
| (Regents). All Rights Reserved. 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 two paragraphs of disclaimer. |
| Redistributions in binary form must reproduce the above copyright notice, |
| this list of conditions, and the following two paragraphs of disclaimer in the |
| documentation and/or other materials provided with the distribution. Neither |
| the name of the Regents nor the names of its contributors may be used to |
| endorse or promote products derived from this software without specific prior |
| written permission. |
| |
| IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, |
| SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING |
| OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS |
| BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED |
| TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| PURPOSE. THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED |
| HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE |
| MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
| |
| =============================================================================*/ |
| |
| #ifndef internals_h |
| #define internals_h 1 |
| |
| #include <stdbool.h> |
| #include <stdint.h> |
| #include "primitives.h" |
| #include "softfloat_types.h" |
| |
| union ui32_f32 { uint32_t ui; float32_t f; }; |
| union ui64_f64 { uint64_t ui; float64_t f; }; |
| |
| #ifdef SOFTFLOAT_FAST_INT64 |
| union extF80M_extF80 { struct extFloat80M fM; extFloat80_t f; }; |
| union ui128_f128 { struct uint128 ui; float128_t f; }; |
| #endif |
| |
| enum { |
| softfloat_mulAdd_subC = 1, |
| softfloat_mulAdd_subProd = 2 |
| }; |
| |
| /*---------------------------------------------------------------------------- |
| *----------------------------------------------------------------------------*/ |
| uint_fast32_t |
| softfloat_roundPackToUI32( bool, uint_fast64_t, uint_fast8_t, bool ); |
| |
| #ifdef SOFTFLOAT_FAST_INT64 |
| uint_fast64_t |
| softfloat_roundPackToUI64( |
| bool, uint_fast64_t, uint_fast64_t, uint_fast8_t, bool ); |
| #else |
| uint_fast64_t |
| softfloat_roundPackMToUI64( bool, uint32_t *, uint_fast8_t, bool ); |
| #endif |
| |
| int_fast32_t |
| softfloat_roundPackToI32( bool, uint_fast64_t, uint_fast8_t, bool ); |
| |
| #ifdef SOFTFLOAT_FAST_INT64 |
| int_fast64_t |
| softfloat_roundPackToI64( |
| bool, uint_fast64_t, uint_fast64_t, uint_fast8_t, bool ); |
| #else |
| int_fast64_t softfloat_roundPackMToI64( bool, uint32_t *, uint_fast8_t, bool ); |
| #endif |
| |
| /*---------------------------------------------------------------------------- |
| *----------------------------------------------------------------------------*/ |
| #define signF32UI( a ) ((bool) ((uint32_t) (a)>>31)) |
| #define expF32UI( a ) ((int_fast16_t) ((a)>>23) & 0xFF) |
| #define fracF32UI( a ) ((a) & 0x007FFFFF) |
| #define packToF32UI( sign, exp, sig ) (((uint32_t) (sign)<<31) + ((uint32_t) (exp)<<23) + (sig)) |
| |
| #define isNaNF32UI( a ) ((((a) & 0x7F800000) == 0x7F800000) && ((a) & 0x007FFFFF)) |
| |
| struct exp16_sig32 { int_fast16_t exp; uint_fast32_t sig; }; |
| struct exp16_sig32 softfloat_normSubnormalF32Sig( uint_fast32_t ); |
| |
| float32_t softfloat_roundPackToF32( bool, int_fast16_t, uint_fast32_t ); |
| float32_t softfloat_normRoundPackToF32( bool, int_fast16_t, uint_fast32_t ); |
| |
| float32_t softfloat_addMagsF32( uint_fast32_t, uint_fast32_t, bool ); |
| float32_t softfloat_subMagsF32( uint_fast32_t, uint_fast32_t, bool ); |
| float32_t |
| softfloat_mulAddF32( |
| uint_fast32_t, uint_fast32_t, uint_fast32_t, uint_fast8_t ); |
| |
| /*---------------------------------------------------------------------------- |
| *----------------------------------------------------------------------------*/ |
| #define signF64UI( a ) ((bool) ((uint64_t) (a)>>63)) |
| #define expF64UI( a ) ((int_fast16_t) ((a)>>52) & 0x7FF) |
| #define fracF64UI( a ) ((a) & UINT64_C( 0x000FFFFFFFFFFFFF )) |
| #define packToF64UI( sign, exp, sig ) ((uint64_t) (((uint_fast64_t) (sign)<<63) + ((uint_fast64_t) (exp)<<52) + (sig))) |
| |
| #define isNaNF64UI( a ) ((((a) & UINT64_C( 0x7FF0000000000000 )) == UINT64_C( 0x7FF0000000000000 )) && ((a) & UINT64_C( 0x000FFFFFFFFFFFFF ))) |
| |
| struct exp16_sig64 { int_fast16_t exp; uint_fast64_t sig; }; |
| struct exp16_sig64 softfloat_normSubnormalF64Sig( uint_fast64_t ); |
| |
| float64_t softfloat_roundPackToF64( bool, int_fast16_t, uint_fast64_t ); |
| float64_t softfloat_normRoundPackToF64( bool, int_fast16_t, uint_fast64_t ); |
| |
| float64_t softfloat_addMagsF64( uint_fast64_t, uint_fast64_t, bool ); |
| float64_t softfloat_subMagsF64( uint_fast64_t, uint_fast64_t, bool ); |
| float64_t |
| softfloat_mulAddF64( |
| uint_fast64_t, uint_fast64_t, uint_fast64_t, uint_fast8_t ); |
| |
| /*---------------------------------------------------------------------------- |
| *----------------------------------------------------------------------------*/ |
| #define signExtF80UI64( a64 ) ((bool) ((uint16_t) (a64)>>15)) |
| #define expExtF80UI64( a64 ) ((a64) & 0x7FFF) |
| #define packToExtF80UI64( sign, exp ) ((uint_fast16_t) (sign)<<15 | (exp)) |
| |
| #define isNaNExtF80UI( a64, a0 ) ((((a64) & 0x7FFF) == 0x7FFF) && ((a0) & UINT64_C( 0x7FFFFFFFFFFFFFFF ))) |
| |
| #ifdef SOFTFLOAT_FAST_INT64 |
| |
| /*---------------------------------------------------------------------------- |
| *----------------------------------------------------------------------------*/ |
| |
| struct exp32_sig64 { int_fast32_t exp; uint64_t sig; }; |
| struct exp32_sig64 softfloat_normSubnormalExtF80Sig( uint_fast64_t ); |
| |
| extFloat80_t |
| softfloat_roundPackToExtF80( |
| bool, int_fast32_t, uint_fast64_t, uint_fast64_t, uint_fast8_t ); |
| extFloat80_t |
| softfloat_normRoundPackToExtF80( |
| bool, int_fast32_t, uint_fast64_t, uint_fast64_t, uint_fast8_t ); |
| |
| extFloat80_t |
| softfloat_addMagsExtF80( |
| uint_fast16_t, uint_fast64_t, uint_fast16_t, uint_fast64_t, bool ); |
| extFloat80_t |
| softfloat_subMagsExtF80( |
| uint_fast16_t, uint_fast64_t, uint_fast16_t, uint_fast64_t, bool ); |
| |
| /*---------------------------------------------------------------------------- |
| *----------------------------------------------------------------------------*/ |
| #define signF128UI64( a64 ) ((bool) ((uint64_t) (a64)>>63)) |
| #define expF128UI64( a64 ) ((int_fast32_t) ((a64)>>48) & 0x7FFF) |
| #define fracF128UI64( a64 ) ((a64) & UINT64_C( 0x0000FFFFFFFFFFFF )) |
| #define packToF128UI64( sign, exp, sig64 ) (((uint_fast64_t) (sign)<<63) + ((uint_fast64_t) (exp)<<48) + (sig64)) |
| |
| #define isNaNF128UI( a64, a0 ) ((((a64) & UINT64_C( 0x7FFF000000000000 )) == UINT64_C( 0x7FFF000000000000 )) && (a0 || ((a64) & UINT64_C( 0x0000FFFFFFFFFFFF )))) |
| |
| struct exp32_sig128 { int_fast32_t exp; struct uint128 sig; }; |
| struct exp32_sig128 |
| softfloat_normSubnormalF128Sig( uint_fast64_t, uint_fast64_t ); |
| |
| float128_t |
| softfloat_roundPackToF128( |
| bool, int_fast32_t, uint_fast64_t, uint_fast64_t, uint_fast64_t ); |
| float128_t |
| softfloat_normRoundPackToF128( |
| bool, int_fast32_t, uint_fast64_t, uint_fast64_t ); |
| |
| float128_t |
| softfloat_addMagsF128( |
| uint_fast64_t, uint_fast64_t, uint_fast64_t, uint_fast64_t, bool ); |
| float128_t |
| softfloat_subMagsF128( |
| uint_fast64_t, uint_fast64_t, uint_fast64_t, uint_fast64_t, bool ); |
| float128_t |
| softfloat_mulAddF128( |
| uint_fast64_t, |
| uint_fast64_t, |
| uint_fast64_t, |
| uint_fast64_t, |
| uint_fast64_t, |
| uint_fast64_t, |
| uint_fast8_t |
| ); |
| |
| #else |
| |
| /*---------------------------------------------------------------------------- |
| *----------------------------------------------------------------------------*/ |
| |
| bool |
| softfloat_tryPropagateNaNExtF80M( |
| const struct extFloat80M *, |
| const struct extFloat80M *, |
| struct extFloat80M * |
| ); |
| void softfloat_invalidExtF80M( struct extFloat80M * ); |
| |
| int softfloat_normExtF80SigM( uint64_t * ); |
| |
| void |
| softfloat_roundPackMToExtF80M( |
| bool, int32_t, uint32_t *, uint_fast8_t, struct extFloat80M * ); |
| void |
| softfloat_normRoundPackMToExtF80M( |
| bool, int32_t, uint32_t *, uint_fast8_t, struct extFloat80M * ); |
| |
| void |
| softfloat_addExtF80M( |
| const struct extFloat80M *, |
| const struct extFloat80M *, |
| struct extFloat80M *, |
| bool |
| ); |
| |
| int |
| softfloat_compareNonnormExtF80M( |
| const struct extFloat80M *, const struct extFloat80M * ); |
| |
| /*---------------------------------------------------------------------------- |
| *----------------------------------------------------------------------------*/ |
| #define signF128UI96( a96 ) ((bool) ((uint32_t) (a96)>>31)) |
| #define expF128UI96( a96 ) ((int32_t) ((a96)>>16) & 0x7FFF) |
| #define fracF128UI96( a96 ) ((a96) & 0x0000FFFF) |
| #define packToF128UI96( sign, exp, sig96 ) (((uint32_t) (sign)<<31) + ((uint32_t) (exp)<<16) + (sig96)) |
| |
| bool softfloat_isNaNF128M( const uint32_t * ); |
| |
| bool |
| softfloat_tryPropagateNaNF128M( |
| const uint32_t *, const uint32_t *, uint32_t * ); |
| void softfloat_invalidF128M( uint32_t * ); |
| |
| int softfloat_shiftNormSigF128M( const uint32_t *, uint_fast8_t, uint32_t * ); |
| |
| void softfloat_roundPackMToF128M( bool, int32_t, uint32_t *, uint32_t * ); |
| void softfloat_normRoundPackMToF128M( bool, int32_t, uint32_t *, uint32_t * ); |
| |
| void |
| softfloat_addF128M( const uint32_t *, const uint32_t *, uint32_t *, bool ); |
| void |
| softfloat_mulAddF128M( |
| const uint32_t *, |
| const uint32_t *, |
| const uint32_t *, |
| uint32_t *, |
| uint_fast8_t |
| ); |
| |
| #endif |
| |
| #endif |
| |