summaryrefslogtreecommitdiffstats
path: root/src/libs/softfloat-3e/testfloat/source/uint128.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/libs/softfloat-3e/testfloat/source/uint128.c')
-rw-r--r--src/libs/softfloat-3e/testfloat/source/uint128.c99
1 files changed, 99 insertions, 0 deletions
diff --git a/src/libs/softfloat-3e/testfloat/source/uint128.c b/src/libs/softfloat-3e/testfloat/source/uint128.c
new file mode 100644
index 00000000..0dcbdfef
--- /dev/null
+++ b/src/libs/softfloat-3e/testfloat/source/uint128.c
@@ -0,0 +1,99 @@
+
+/*============================================================================
+
+This C source file is part of TestFloat, Release 3e, 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.
+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 "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;
+
+}
+