diff options
author | Andrew Waterman <andrew@sifive.com> | 2018-07-11 01:16:28 -0700 |
---|---|---|
committer | Andrew Waterman <andrew@sifive.com> | 2018-07-11 01:16:28 -0700 |
commit | 5cd8d2b93fad2011fdf8f49a263d77697af35b32 (patch) | |
tree | f6fb9cb6d3bef2aa5c9903511b92e5a6e99e9519 /softfloat/s_propagateNaNF64UI.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_propagateNaNF64UI.c')
-rw-r--r--[-rwxr-xr-x] | softfloat/s_propagateNaNF64UI.c | 47 |
1 files changed, 39 insertions, 8 deletions
diff --git a/softfloat/s_propagateNaNF64UI.c b/softfloat/s_propagateNaNF64UI.c index bb6bb6e..2203665 100755..100644 --- a/softfloat/s_propagateNaNF64UI.c +++ b/softfloat/s_propagateNaNF64UI.c @@ -1,27 +1,58 @@ -// See LICENSE.SoftFloat for license details. +/*============================================================================ -/*** UPDATE COMMENTS. ***/ +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 <stdbool.h> #include <stdint.h> #include "platform.h" -#include "internals.h" #include "specialize.h" #include "softfloat.h" /*---------------------------------------------------------------------------- -| Takes two double-precision floating-point values `a' and `b', one of which -| is a NaN, and returns the appropriate NaN result. If either `a' or `b' is a +| Interpreting `uiA' and `uiB' as the bit patterns of two 64-bit floating- +| point values, at least one of which is a NaN, returns the bit pattern of +| the combined NaN result. If either `uiA' or `uiB' has the pattern of a | signaling NaN, the invalid exception is raised. *----------------------------------------------------------------------------*/ - uint_fast64_t softfloat_propagateNaNF64UI( uint_fast64_t uiA, uint_fast64_t uiB ) { - if ( softfloat_isSigNaNF64UI( uiA ) | softfloat_isSigNaNF64UI( uiB ) ) { + + if ( softfloat_isSigNaNF64UI( uiA ) || softfloat_isSigNaNF64UI( uiB ) ) { softfloat_raiseFlags( softfloat_flag_invalid ); } return defaultNaNF64UI; + } |