1 files changed, 117 insertions, 0 deletions
diff --git a/EDK/Foundation/Library/Pei/PeiLib/x64/Math.c b/EDK/Foundation/Library/Pei/PeiLib/x64/Math.c
new file mode 100644
index 0000000..968bf26
--- /dev/null
+++ b/EDK/Foundation/Library/Pei/PeiLib/x64/Math.c
@@ -0,0 +1,117 @@
+/*++
+
+Copyright (c) 2005, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  Math.c
+
+Abstract:
+
+  64-bit Math worker functions for x64
+
+--*/
+
+#include "Efi.h"
+#include "Pei.h"
+#include "PeiLib.h"
+
+
+UINT64
+LShiftU64 (
+  IN UINT64   Operand,
+  IN UINTN    Count
+  )
+/*++
+
+Routine Description:
+
+  This routine allows a 64 bit value to be left shifted by 32 bits and returns the 
+  shifted value.
+  Count is valid up 63. (Only Bits 0-5 is valid for Count)
+
+Arguments:
+
+  Operand - Value to be shifted
+  
+  Count   - Number of times to shift left.
+  
+Returns:
+
+  Value shifted left identified by the Count.
+  
+--*/
+{
+  return Operand << Count;
+}
+
+
+UINT64
+MultU64x32 (
+  IN UINT64   Multiplicand,
+  IN UINTN    Multiplier
+  )
+/*++
+
+Routine Description:
+
+  This routine allows a 64 bit value to be multiplied with a 32 bit value returns 
+  64bit result.
+  No checking if the result is greater than 64bits
+
+Arguments:
+
+  Multiplicand  - 
+  
+  Multiplier    - 
+  
+Returns:
+
+  Multiplicand * Multiplier
+  
+--*/
+{
+  return Multiplicand * Multiplier;
+}
+}
+
+UINT64
+DivU64x32 (
+  IN UINT64   Dividend,
+  IN UINTN    Divisor,
+  OUT UINTN   *Remainder OPTIONAL
+  )
+/*++
+
+Routine Description:
+
+  This routine allows a 64 bit value to be divided with a 32 bit value returns 
+  64bit result and the Remainder.
+
+Arguments:
+
+  Dividend  - 
+  
+  Divisor   - 
+  
+  Remainder -
+  
+Returns:
+
+  Dividend  / Divisor
+  Remainder = Dividend mod Divisor
+  
+N.B. only works for 31bit divisors!!
+    
+--*/
+{
+  return Dividend/Divisor;
+}
+