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Diffstat (limited to 'src/libs/softfloat-3e/source/8086-SSE/s_propagateNaNF128M.c')
-rw-r--r-- | src/libs/softfloat-3e/source/8086-SSE/s_propagateNaNF128M.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/libs/softfloat-3e/source/8086-SSE/s_propagateNaNF128M.c b/src/libs/softfloat-3e/source/8086-SSE/s_propagateNaNF128M.c new file mode 100644 index 00000000..94b6c1fa --- /dev/null +++ b/src/libs/softfloat-3e/source/8086-SSE/s_propagateNaNF128M.c @@ -0,0 +1,76 @@ + +/*============================================================================ + +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" + +/*---------------------------------------------------------------------------- +| Assuming at least one of the two 128-bit floating-point values pointed to by +| `aWPtr' and `bWPtr' is a NaN, stores the combined NaN result at the location +| pointed to by `zWPtr'. If either original floating-point value is a +| signaling NaN, the invalid exception is raised. Each of `aWPtr', `bWPtr', +| and `zWPtr' points to an array of four 32-bit elements that concatenate in +| the platform's normal endian order to form a 128-bit floating-point value. +*----------------------------------------------------------------------------*/ +void + softfloat_propagateNaNF128M( + const uint32_t *aWPtr, const uint32_t *bWPtr, uint32_t *zWPtr SOFTFLOAT_STATE_DECL_COMMA ) +{ + bool isSigNaNA; + const uint32_t *ptr; + + ptr = aWPtr; + isSigNaNA = f128M_isSignalingNaN( (const float128_t *) aWPtr ); + if ( + isSigNaNA + || (bWPtr && f128M_isSignalingNaN( (const float128_t *) bWPtr )) + ) { + softfloat_raiseFlags( softfloat_flag_invalid SOFTFLOAT_STATE_ARG_COMMA ); + if ( isSigNaNA ) goto copy; + } + if ( ! softfloat_isNaNF128M( aWPtr ) ) ptr = bWPtr; + copy: + zWPtr[indexWordHi( 4 )] = ptr[indexWordHi( 4 )] | 0x00008000; + zWPtr[indexWord( 4, 2 )] = ptr[indexWord( 4, 2 )]; + zWPtr[indexWord( 4, 1 )] = ptr[indexWord( 4, 1 )]; + zWPtr[indexWord( 4, 0 )] = ptr[indexWord( 4, 0 )]; + +} + |