aboutsummaryrefslogtreecommitdiff
path: root/softfloat/s_propagateNaNF64UI.c
diff options
context:
space:
mode:
authorAndrew Waterman <andrew@sifive.com>2018-07-11 01:16:28 -0700
committerAndrew Waterman <andrew@sifive.com>2018-07-11 01:16:28 -0700
commit5cd8d2b93fad2011fdf8f49a263d77697af35b32 (patch)
treef6fb9cb6d3bef2aa5c9903511b92e5a6e99e9519 /softfloat/s_propagateNaNF64UI.c
parent8e69141749065ff957383d2112768f95a33429b6 (diff)
downloadriscv-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.c47
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;
+
}