/** @file\r
Math worker functions.\r
\r
- Copyright (c) 2006, Intel Corporation<BR>\r
+ Copyright (c) 2006 - 2008, Intel Corporation<BR>\r
All rights reserved. This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
\r
**/\r
\r
+\r
+\r
+\r
#include "BaseLibInternals.h"\r
\r
/**\r
Returns the value of the highest bit set in a 32-bit value. Equivalent to\r
- 1 << HighBitSet32(x).\r
+ 1 << log2(x).\r
\r
This function computes the value of the highest bit set in the 32-bit value\r
specified by Operand. If Operand is zero, then zero is returned.\r
IN UINT32 Operand\r
)\r
{\r
- INTN BitPos;\r
+ if (0 == Operand) {\r
+ return 0;\r
+ }\r
\r
- return (BitPos = HighBitSet32 (Operand)) > 0 ? 1ul << BitPos : 0;\r
+ return 1ul << HighBitSet32 (Operand);\r
}\r