// This file is part of the CircuitPython project: https://circuitpython.org

//

// SPDX-FileCopyrightText: Copyright (c) 2021 Scott Shawcroft for Adafruit Industries

//

// SPDX-License-Identifier: MIT

#include <stdint.h>

#include "supervisor/shared/cpu.h"

bool cpu_interrupt_active(void) {

#if defined(__ARM_ARCH) && (__ARM_ARCH >= 6) && defined(__ARM_ARCH_PROFILE) && (__ARM_ARCH_PROFILE == 'M')

// Check VECTACTIVE in ICSR. We don't need to disable interrupts because if

// one occurs after we read, we won't continue until it is resolved.

return (*((volatile uint32_t *)0xE000ED04) & 0x1ff) != 0;

#else

// We don't know.

return false;

#endif

}