1 files changed, 96 insertions, 0 deletions
diff --git a/source/uint128.c b/source/uint128.c
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index 0000000..04520cf
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+++ b/source/uint128.c
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+
+/*============================================================================
+
+This C source file is part of TestFloat, Release 3, a package of programs for
+testing the correctness of floating-point arithmetic complying with the IEEE
+Standard for Floating-Point, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014 The Regents of the University of California
+(Regents).  All Rights Reserved.  Redistribution and use in source and binary
+forms, with or without modification, are permitted provided that the following
+conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer in the
+documentation and/or other materials provided with the distribution.  Neither
+the name of the Regents nor the names of its contributors may be used to
+endorse or promote products derived from this software without specific prior
+written permission.
+
+IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
+OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
+BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
+HEREUNDER IS PROVIDED "AS IS".  REGENTS HAS NO OBLIGATION TO PROVIDE
+MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+
+=============================================================================*/
+
+#include <stdbool.h>
+#include <stdint.h>
+#include "platform.h"
+#include "uint128.h"
+
+struct uint128 shortShiftLeft128( struct uint128 a, int count )
+{
+    struct uint128 z;
+
+    z.v64 = a.v64<<count | a.v0>>(-count & 63);
+    z.v0 = a.v0<<count;
+    return z;
+
+}
+
+struct uint128 shortShiftRight128( struct uint128 a, int count )
+{
+    struct uint128 z;
+
+    z.v64 = a.v64>>count;
+    z.v0 = a.v64<<(-count & 63) | a.v0>>count;
+    return z;
+
+}
+
+struct uint128 shortShiftRightJam128( struct uint128 a, int count )
+{
+    int negCount;
+    struct uint128 z;
+
+    negCount = -count;
+    z.v64 = a.v64>>count;
+    z.v0 =
+        a.v64<<(negCount & 63) | a.v0>>count
+            | ((uint64_t) (a.v0<<(negCount & 63)) != 0);
+    return z;
+
+}
+
+struct uint128 neg128( struct uint128 a )
+{
+
+    if ( a.v0 ) {
+        a.v64 = ~a.v64;
+        a.v0 = -a.v0;
+    } else {
+        a.v64 = -a.v64;
+    }
+    return a;
+
+}
+
+struct uint128 add128( struct uint128 a, struct uint128 b )
+{
+    struct uint128 z;
+
+    z.v0 = a.v0 + b.v0;
+    z.v64 = a.v64 + b.v64 + (z.v0 < a.v0);
+    return z;
+
+}
+