Support debug system bus access.

[riscv-isa-sim.git] / softfloat / s_countLeadingZeros32.c

diff --git a/softfloat/s_countLeadingZeros32.c b/softfloat/s_countLeadingZeros32.c
old mode 100755 (executable)
new mode 100644 (file)
index 0bd17e1..fbf8ab6
--- a/softfloat/s_countLeadingZeros32.c
+++ b/softfloat/s_countLeadingZeros32.c
@@ -1,10 +1,50 @@
 
+/*============================================================================
+
+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"
+
+#ifndef softfloat_countLeadingZeros32
+
+#define softfloat_countLeadingZeros32 softfloat_countLeadingZeros32
 #include "primitives.h"
 
-int softfloat_countLeadingZeros32( uint32_t a )
+uint_fast8_t softfloat_countLeadingZeros32( uint32_t a )
 {
-    int count;
+    uint_fast8_t count;
 
     count = 0;
     if ( a < 0x10000 ) {
@@ -15,8 +55,10 @@ int softfloat_countLeadingZeros32( uint32_t a )
         count += 8;
         a <<= 8;
     }
-    count += softfloat_countLeadingZeros8[ a>>24 ];
+    count += softfloat_countLeadingZeros8[a>>24];
     return count;
 
 }
 
+#endif
+