1 files changed, 47 insertions, 0 deletions
diff --git a/MdePkg/Include/Pi/PiDependency.h b/MdePkg/Include/Pi/PiDependency.h
new file mode 100644
index 000000000000..da2cfee5f50b
--- /dev/null
+++ b/MdePkg/Include/Pi/PiDependency.h
@@ -0,0 +1,47 @@
+/** @file
+  Present the dependency expression values in PI.
+
+  Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
+  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.             
+
+  @par Revision Reference:
+  PI Version 1.0
+
+**/
+#ifndef __PI_DEPENDENCY_H__
+#define __PI_DEPENDENCY_H__
+
+/// 
+/// If present, this must be the first and only opcode,
+/// EFI_DEP_BEFORE may be used by DXE and SMM drivers.
+/// 
+#define EFI_DEP_BEFORE        0x00
+
+/// 
+/// If present, this must be the first and only opcode,
+/// EFI_DEP_AFTER may be used by DXE and SMM drivers.
+/// 
+#define EFI_DEP_AFTER         0x01
+
+#define EFI_DEP_PUSH          0x02
+#define EFI_DEP_AND           0x03
+#define EFI_DEP_OR            0x04
+#define EFI_DEP_NOT           0x05
+#define EFI_DEP_TRUE          0x06
+#define EFI_DEP_FALSE         0x07
+#define EFI_DEP_END           0x08
+
+
+/// 
+/// If present, this must be the first opcode,
+/// EFI_DEP_SOR is only used by DXE driver.
+/// 
+#define EFI_DEP_SOR           0x09
+
+#endif