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author | Andrew Waterman <andrew@sifive.com> | 2018-07-11 01:16:28 -0700 |
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committer | Andrew Waterman <andrew@sifive.com> | 2018-07-11 01:16:28 -0700 |
commit | 5cd8d2b93fad2011fdf8f49a263d77697af35b32 (patch) | |
tree | f6fb9cb6d3bef2aa5c9903511b92e5a6e99e9519 /softfloat/s_propagateNaNExtF80UI.c | |
parent | 8e69141749065ff957383d2112768f95a33429b6 (diff) | |
download | riscv-pk-5cd8d2b93fad2011fdf8f49a263d77697af35b32.zip riscv-pk-5cd8d2b93fad2011fdf8f49a263d77697af35b32.tar.gz riscv-pk-5cd8d2b93fad2011fdf8f49a263d77697af35b32.tar.bz2 |
Upgrade to SoftFloat 3e
Diffstat (limited to 'softfloat/s_propagateNaNExtF80UI.c')
-rw-r--r-- | softfloat/s_propagateNaNExtF80UI.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/softfloat/s_propagateNaNExtF80UI.c b/softfloat/s_propagateNaNExtF80UI.c new file mode 100644 index 0000000..88bfee5 --- /dev/null +++ b/softfloat/s_propagateNaNExtF80UI.c @@ -0,0 +1,73 @@ + +/*============================================================================ + +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, 2015 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 <stdint.h> +#include "platform.h" +#include "primitiveTypes.h" +#include "specialize.h" +#include "softfloat.h" + +/*---------------------------------------------------------------------------- +| Interpreting the unsigned integer formed from concatenating `uiA64' and +| `uiA0' as an 80-bit extended floating-point value, and likewise interpreting +| the unsigned integer formed from concatenating `uiB64' and `uiB0' as another +| 80-bit extended floating-point value, and assuming at least on of these +| floating-point values is a NaN, returns the bit pattern of the combined NaN +| result. If either original floating-point value is a signaling NaN, the +| invalid exception is raised. +*----------------------------------------------------------------------------*/ +struct uint128 + softfloat_propagateNaNExtF80UI( + uint_fast16_t uiA64, + uint_fast64_t uiA0, + uint_fast16_t uiB64, + uint_fast64_t uiB0 + ) +{ + struct uint128 uiZ; + + if ( + softfloat_isSigNaNExtF80UI( uiA64, uiA0 ) + || softfloat_isSigNaNExtF80UI( uiB64, uiB0 ) + ) { + softfloat_raiseFlags( softfloat_flag_invalid ); + } + uiZ.v64 = defaultNaNExtF80UI64; + uiZ.v0 = defaultNaNExtF80UI0; + return uiZ; + +} + |