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38 lines
925 B
ArmAsm
38 lines
925 B
ArmAsm
#------------------------------------------------------------------------------
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#
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# GetInterruptState() function for ARM
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#
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# Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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# Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
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# SPDX-License-Identifier: BSD-2-Clause-Patent
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#
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#------------------------------------------------------------------------------
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.text
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.p2align 2
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GCC_ASM_EXPORT (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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ASM_PFX(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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