Merge pull request #156 from p12nGH/noncontiguous_harts

[riscv-isa-sim.git] / softfloat / s_sub128.c

diff --git a/softfloat/s_sub128.c b/softfloat/s_sub128.c
old mode 100755 (executable)
new mode 100644 (file)
index 0c4f181..ed86e10
--- a/softfloat/s_sub128.c
+++ b/softfloat/s_sub128.c
@@ -1,17 +1,55 @@
-\r
-#include <stdint.h>\r
-#include "platform.h"\r
-#include "primitives.h"\r
-\r
-struct uint128\r
- softfloat_sub128( uint64_t a64, uint64_t a0, uint64_t b64, uint64_t b0 )\r
-{\r
-    struct uint128 z;\r
-\r
-    z.v0 = a0 - b0;\r
-    z.v64 = a64 - b64;\r
-    z.v64 -= ( a0 < b0 );\r
-    return z;\r
-\r
-}\r
-\r
+
+/*============================================================================
+
+This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3d, 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_sub128
+
+struct uint128
+ softfloat_sub128( uint64_t a64, uint64_t a0, uint64_t b64, uint64_t b0 )
+{
+    struct uint128 z;
+
+    z.v0 = a0 - b0;
+    z.v64 = a64 - b64 - (a0 < b0);
+    return z;
+
+}
+
+#endif
+