Update SoftFloat

1 files changed, 77 insertions, 0 deletions

diff --git a/softfloat/s_shiftRightJam128Extra.c b/softfloat/s_shiftRightJam128Extra.c
new file mode 100644
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+++ b/softfloat/s_shiftRightJam128Extra.c
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+
+/*============================================================================
+
+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, 2016 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_shiftRightJam128Extra
+
+struct uint128_extra
+ softfloat_shiftRightJam128Extra(
+     uint64_t a64, uint64_t a0, uint64_t extra, uint_fast32_t dist )
+{
+    uint_fast8_t u8NegDist;
+    struct uint128_extra z;
+
+    u8NegDist = -dist;
+    if ( dist < 64 ) {
+        z.v.v64 = a64>>dist;
+        z.v.v0 = a64<<(u8NegDist & 63) | a0>>dist;
+        z.extra = a0<<(u8NegDist & 63);
+    } else {
+        z.v.v64 = 0;
+        if ( dist == 64 ) {
+            z.v.v0 = a64;
+            z.extra = a0;
+        } else {
+            extra |= a0;
+            if ( dist < 128 ) {
+                z.v.v0 = a64>>(dist & 63);
+                z.extra = a64<<(u8NegDist & 63);
+            } else {
+                z.v.v0 = 0;
+                z.extra = (dist == 128) ? a64 : (a64 != 0);
+            }
+        }
+    }
+    z.extra |= (extra != 0);
+    return z;
+
+}
+
+#endif
+