1 files changed, 37 insertions, 0 deletions
diff --git a/Core/MdePkg/Library/BaseLib/Arm/DisableInterrupts.asm b/Core/MdePkg/Library/BaseLib/Arm/DisableInterrupts.asm
new file mode 100644
index 0000000000..4fd8de45f6
--- /dev/null
+++ b/Core/MdePkg/Library/BaseLib/Arm/DisableInterrupts.asm
@@ -0,0 +1,37 @@
+;------------------------------------------------------------------------------ 
+;
+; DisableInterrupts() for ARM
+;
+; Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
+; Portions copyright (c) 2008 - 2009, Apple Inc. 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.
+;
+;------------------------------------------------------------------------------
+
+    EXPORT DisableInterrupts
+
+    AREA Interrupt_disable, CODE, READONLY
+
+;/**
+;  Disables CPU interrupts.
+;
+;**/
+;VOID
+;EFIAPI
+;DisableInterrupts (
+;  VOID
+;  );
+;
+DisableInterrupts
+    MRS     R0,CPSR
+    ORR     R0,R0,#0x80             ;Disable IRQ interrupts
+    MSR     CPSR_c,R0
+    BX      LR
+    
+    END