Add in the 1st version of ECP.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2832 6f19259b-4bc3-4df7-8a09-765794883524

EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/Ipf/HwAccess.s

@@ -0,0 +1,77 @@
+//++
+// Copyright (c) 2007, 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:
+//
+//  HWAccess.s
+//
+// Abstract:
+//
+//  Contains an implementation of Read/Write Kr7 for the Itanium-based architecture.
+//
+//
+//
+// Revision History:
+//
+//--
+
+  .file  "HWAccess.s"
+#include  "IpfMacro.i"
+
+
+//----------------------------------------------------------------------------------
+//++ 
+//VOID
+//AsmWriteKr7 (
+//  UINT64
+//  );
+//
+// This routine saves the given input value into the kernel register 7
+//
+// Arguments :
+//
+// On Entry :  64 bit value to be saved.
+//
+// Return Value: None
+//
+//--
+//----------------------------------------------------------------------------------
+PROCEDURE_ENTRY (AsmWriteKr7)
+        NESTED_SETUP (1,2,0,0)
+        mov ar.k7 = in0;;
+        NESTED_RETURN
+
+PROCEDURE_EXIT (AsmWriteKr7)
+
+//---------------------------------------------------------------------------------
+//++
+//UINT64
+//AsmReadKr7 (
+//  VOID
+//  );
+//
+// This routine returns the value of the kernel register 7
+//
+// Arguments :
+//
+// On Entry :  None
+//
+// Return Value: 64bit Value of the register.
+//
+//--
+//----------------------------------------------------------------------------------
+PROCEDURE_ENTRY (AsmReadKr7)
+        NESTED_SETUP (0,2,0,0)
+        mov r8 = ar.k7;;
+        NESTED_RETURN
+PROCEDURE_EXIT (AsmReadKr7)
+//----------------------------------------------------------------------------------
+
+