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      1 #------------------------------------------------------------------------------
      2 #
      3 # EnableInterrupts() for ARM
      4 #
      5 # Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
      6 # Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
      7 # This program and the accompanying materials
      8 # are licensed and made available under the terms and conditions of the BSD License
      9 # which accompanies this distribution.  The full text of the license may be found at
     10 # http://opensource.org/licenses/bsd-license.php.
     11 #
     12 # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
     13 # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
     14 #
     15 #------------------------------------------------------------------------------
     16 
     17 .text
     18 .p2align 2
     19 GCC_ASM_EXPORT(EnableInterrupts)
     20 
     21 
     22 #/**
     23 #  Enables CPU interrupts.
     24 #
     25 #**/
     26 #VOID
     27 #EFIAPI
     28 #EnableInterrupts (
     29 #  VOID
     30 #  );
     31 #
     32 ASM_PFX(EnableInterrupts):
     33     mrs  R0,CPSR
     34     bic  R0,R0,#0x80    @Enable IRQ interrupts
     35     msr  CPSR_c,R0
     36     bx   LR
     37