aboutsummaryrefslogtreecommitdiff
path: root/softfloat/s_add128.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_add128.c
parent8e69141749065ff957383d2112768f95a33429b6 (diff)
downloadpk-5cd8d2b93fad2011fdf8f49a263d77697af35b32.zip
pk-5cd8d2b93fad2011fdf8f49a263d77697af35b32.tar.gz
pk-5cd8d2b93fad2011fdf8f49a263d77697af35b32.tar.bz2
Upgrade to SoftFloat 3e
Diffstat (limited to 'softfloat/s_add128.c')
-rw-r--r--[-rwxr-xr-x]softfloat/s_add128.c74
1 files changed, 55 insertions, 19 deletions
diff --git a/softfloat/s_add128.c b/softfloat/s_add128.c
index ba27db7..9846643 100755..100644
--- a/softfloat/s_add128.c
+++ b/softfloat/s_add128.c
@@ -1,19 +1,55 @@
-// See LICENSE.SoftFloat for license details.
-
-
-#include <stdint.h>
-#include "platform.h"
-#include "primitives.h"
-
-struct uint128
- softfloat_add128( uint64_t a64, uint64_t a0, uint64_t b64, uint64_t b0 )
-{
- struct uint128 z;
-
- z.v0 = a0 + b0;
- z.v64 = a64 + b64;
- z.v64 += ( z.v0 < a0 );
- return z;
-
-}
-
+
+/*============================================================================
+
+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"
+
+#ifndef softfloat_add128
+
+struct uint128
+ softfloat_add128( uint64_t a64, uint64_t a0, uint64_t b64, uint64_t b0 )
+{
+ struct uint128 z;
+
+ z.v0 = a0 + b0;
+ z.v64 = a64 + b64 + (z.v0 < a0);
+ return z;
+
+}
+
+#endif
+