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Diffstat (limited to 'softfloat/f128M_lt_quiet.c')
-rw-r--r-- | softfloat/f128M_lt_quiet.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/softfloat/f128M_lt_quiet.c b/softfloat/f128M_lt_quiet.c new file mode 100644 index 0000000..6ccf3c8 --- /dev/null +++ b/softfloat/f128M_lt_quiet.c @@ -0,0 +1,96 @@ + +/*============================================================================ + +This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic +Package, Release 3e, by John R. Hauser. + +Copyright 2011, 2012, 2013, 2014 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. + +=============================================================================*/ + +#include <stdbool.h> +#include <stdint.h> +#include "platform.h" +#include "internals.h" +#include "specialize.h" +#include "softfloat.h" + +#ifdef SOFTFLOAT_FAST_INT64 + +bool f128M_lt_quiet( const float128_t *aPtr, const float128_t *bPtr ) +{ + + return f128_lt_quiet( *aPtr, *bPtr ); + +} + +#else + +bool f128M_lt_quiet( const float128_t *aPtr, const float128_t *bPtr ) +{ + const uint32_t *aWPtr, *bWPtr; + uint32_t uiA96, uiB96; + bool signA, signB; + uint32_t wordA, wordB; + + aWPtr = (const uint32_t *) aPtr; + bWPtr = (const uint32_t *) bPtr; + if ( softfloat_isNaNF128M( aWPtr ) || softfloat_isNaNF128M( bWPtr ) ) { + if ( f128M_isSignalingNaN( aPtr ) || f128M_isSignalingNaN( bPtr ) ) { + softfloat_raiseFlags( softfloat_flag_invalid ); + } + return false; + } + uiA96 = aWPtr[indexWordHi( 4 )]; + uiB96 = bWPtr[indexWordHi( 4 )]; + signA = signF128UI96( uiA96 ); + signB = signF128UI96( uiB96 ); + if ( signA != signB ) { + if ( signB ) return false; + if ( (uiA96 | uiB96) & 0x7FFFFFFF ) return true; + wordA = aWPtr[indexWord( 4, 2 )]; + wordB = bWPtr[indexWord( 4, 2 )]; + if ( wordA | wordB ) return true; + wordA = aWPtr[indexWord( 4, 1 )]; + wordB = bWPtr[indexWord( 4, 1 )]; + if ( wordA | wordB ) return true; + wordA = aWPtr[indexWord( 4, 0 )]; + wordB = bWPtr[indexWord( 4, 0 )]; + return ((wordA | wordB) != 0); + } + if ( signA ) { + aWPtr = (const uint32_t *) bPtr; + bWPtr = (const uint32_t *) aPtr; + } + return (softfloat_compare128M( aWPtr, bWPtr ) < 0); + +} + +#endif + |