mirror of https://github.com/acidanthera/audk.git
44 lines
1.2 KiB
ArmAsm
44 lines
1.2 KiB
ArmAsm
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#------------------------------------------------------------------------------
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#
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# GetInterruptState() function for ARM
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#
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# Copyright (c) 2006 - 2009, Intel Corporation<BR>
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# Portions copyright (c) 2008-2009 Apple Inc.<BR>
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# All rights reserved. This program and the accompanying materials
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# are licensed and made available under the terms and conditions of the BSD License
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# which accompanies this distribution. The full text of the license may be found at
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# http://opensource.org/licenses/bsd-license.php
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#
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# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#
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#------------------------------------------------------------------------------
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.text
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.p2align 2
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.globl _GetInterruptState
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#/**
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# Retrieves the current CPU interrupt state.
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#
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# Returns TRUE is interrupts are currently enabled. Otherwise
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# returns FALSE.
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#
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# @retval TRUE CPU interrupts are enabled.
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# @retval FALSE CPU interrupts are disabled.
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#
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#**/
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#
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#BOOLEAN
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#EFIAPI
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#GetInterruptState (
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# VOID
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# );
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#
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_GetInterruptState:
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mrs R0, CPSR
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tst R0, #0x80 @Check if IRQ is enabled.
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moveq R0, #1
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movne R0, #0
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bx LR
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