Upgrade to SoftFloat 3e

1 files changed, 59 insertions, 28 deletions

diff --git a/softfloat/ui32_to_f64.c b/softfloat/ui32_to_f64.c
index b93ddf7..11050c1 100755..100644
--- a/softfloat/ui32_to_f64.c
+++ b/softfloat/ui32_to_f64.c
@@ -1,28 +1,59 @@
-// See LICENSE.SoftFloat for license details.
-
-

-#include <stdint.h>

-#include "platform.h"

-#include "primitives.h"

-#include "internals.h"

-#include "softfloat.h"

-

-float64_t ui32_to_f64( uint_fast32_t a )

-{

-    uint_fast64_t uiZ;

-    int shiftCount;

-    union ui64_f64 uZ;

-

-    if ( ! a ) {

-        uiZ = 0;

-    } else {

-        shiftCount = softfloat_countLeadingZeros32( a ) + 21;

-        uiZ =

-            packToF64UI(

-                0, 0x432 - shiftCount, (uint_fast64_t) a<<shiftCount );

-    }

-    uZ.ui = uiZ;

-    return uZ.f;

-

-}

-

+
+/*============================================================================
+
+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, 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 "internals.h"
+#include "softfloat.h"
+
+float64_t ui32_to_f64( uint32_t a )
+{
+    uint_fast64_t uiZ;
+    int_fast8_t shiftDist;
+    union ui64_f64 uZ;
+
+    if ( ! a ) {
+        uiZ = 0;
+    } else {
+        shiftDist = softfloat_countLeadingZeros32( a ) + 21;
+        uiZ =
+            packToF64UI( 0, 0x432 - shiftDist, (uint_fast64_t) a<<shiftDist );
+    }
+    uZ.ui = uiZ;
+    return uZ.f;
+
+}
+