| ;------------------------------------------------------------------------------ | |
| ; | |
| ; GetInterruptState() function for ARM | |
| ; | |
| ; Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> | |
| ; Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR> | |
| ; SPDX-License-Identifier: BSD-2-Clause-Patent | |
| ; | |
| ;------------------------------------------------------------------------------ | |
| EXPORT GetInterruptState | |
| AREA Interrupt_enable, CODE, READONLY | |
| ;/** | |
| ; 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 | |
| ; ); | |
| ; | |
| GetInterruptState | |
| MRS R0, CPSR | |
| TST R0, #0x80 ;Check if IRQ is enabled. | |
| MOVEQ R0, #1 | |
| MOVNE R0, #0 | |
| BX LR | |
| END |