From 1760cf81e4b1847c6823ea3514a78dd120e19b6e Mon Sep 17 00:00:00 2001 From: Guo Mang Date: Thu, 22 Dec 2016 15:57:14 +0800 Subject: MdePkg: Move to new location Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Guo Mang --- .../Library/BaseLib/Arm/GetInterruptsState.S | 43 ++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 Core/MdePkg/Library/BaseLib/Arm/GetInterruptsState.S (limited to 'Core/MdePkg/Library/BaseLib/Arm/GetInterruptsState.S') diff --git a/Core/MdePkg/Library/BaseLib/Arm/GetInterruptsState.S b/Core/MdePkg/Library/BaseLib/Arm/GetInterruptsState.S new file mode 100644 index 0000000000..94b3596fc6 --- /dev/null +++ b/Core/MdePkg/Library/BaseLib/Arm/GetInterruptsState.S @@ -0,0 +1,43 @@ +#------------------------------------------------------------------------------ +# +# GetInterruptState() function for ARM +# +# Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.
+# Portions copyright (c) 2008 - 2009, Apple Inc. 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 +GCC_ASM_EXPORT (GetInterruptState) + +#/** +# Retrieves the current CPU interrupt state. +# +# Returns TRUE is interrupts are currently enabled. Otherwise +# returns FALSE. +# +# @retval TRUE CPU interrupts are enabled. +# @retval FALSE CPU interrupts are disabled. +# +#**/ +# +#BOOLEAN +#EFIAPI +#GetInterruptState ( +# VOID +# ); +# +ASM_PFX(GetInterruptState): + mrs R0, CPSR + tst R0, #0x80 @Check if IRQ is enabled. + moveq R0, #1 + movne R0, #0 + bx LR -- cgit v1.2.3