Add ARM support

Add C inline assembly files for IA32 and X64 GCC builds.


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9113 6f19259b-4bc3-4df7-8a09-765794883524

MdePkg/Library/BaseLib/Arm/EnableInterrupts.S

@@ -0,0 +1,36 @@
+#------------------------------------------------------------------------------ 
+#
+# EnableInterrupts() for ARM
+#
+# Copyright (c) 2006 - 2009, Intel Corporation<BR>
+# Portions copyright (c) 2008-2009 Apple Inc.<BR>
+# 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.
+#
+#------------------------------------------------------------------------------
+
+.text
+.p2align 2
+.globl ASM_PFX(EnableInterrupts)
+
+
+#/**
+#  Enables CPU interrupts.
+#
+#**/
+#VOID
+#EFIAPI
+#EnableInterrupts (
+#  VOID
+#  );
+#
+ASM_PFX(EnableInterrupts):
+    mrs  R0,CPSR
+    bic  R0,R0,#0x80		@Enable IRQ interrupts
+    msr  CPSR_c,R0
+    bx   LR