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authorAki <please@ignore.pl>2022-02-09 22:23:03 +0100
committerAki <please@ignore.pl>2022-02-09 22:53:55 +0100
commit373dc625f82b47096893add42c4472e4a57ab7eb (patch)
tree640228d02476d379de13071b13d1b1fa322b767f /contrib/Opcode/Ice/IceUtils.cpp
parent2d7dd844219965b81e81848e60d7f7bf23035ee4 (diff)
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Moved third-party libraries to a separate subdirectory
Diffstat (limited to 'contrib/Opcode/Ice/IceUtils.cpp')
-rw-r--r--contrib/Opcode/Ice/IceUtils.cpp39
1 files changed, 39 insertions, 0 deletions
diff --git a/contrib/Opcode/Ice/IceUtils.cpp b/contrib/Opcode/Ice/IceUtils.cpp
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+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+/**
+ * Contains misc. useful macros & defines.
+ * \file IceUtils.cpp
+ * \author Pierre Terdiman (collected from various sources)
+ * \date April, 4, 2000
+ */
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Precompiled Header
+#include "StdAfx.h"
+
+using namespace IceCore;
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+/**
+ * Returns the alignment of the input address.
+ * \fn Alignment()
+ * \param address [in] address to check
+ * \return the best alignment (e.g. 1 for odd addresses, etc)
+ */
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+udword IceCore::Alignment(udword address)
+{
+ // Returns 0 for null addresses
+ if(!address) return 0;
+
+ // Test all bits
+ udword Align = 1;
+ for(udword i=1;i<32;i++)
+ {
+ // Returns as soon as the alignment is broken
+ if(address&Align) return Align;
+ Align<<=1;
+ }
+ // Here all bits are null, except the highest one (else the address would be null)
+ return Align;
+}