irqflags.h File Reference

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Functions
static void	irq_enable (uint8_t flags)
	Enable IRQs (nested). More...
static uint8_t	irq_disable (void)
	Disable IRQs (nested). More...
static uint8_t	is_irq_enabled (void)
	Determines, if the interrupt flags (IF) is set. More...

Detailed Description

Copyright

(c) 2014-2024 This file is distributed under the MIT License. See LICENSE.md for details.

Function Documentation

irq_disable()

static uint8_t irq_disable ( void  )

inlinestatic

Disable IRQs (nested).

Disable IRQs when unsure if IRQs were enabled at all. This function together with irq_enable can be used in situations when interrupts shouldn't be activated if they were not activated before calling this function.

Returns

1 if the IRQ is enable for the CPU.

irq_enable()

static void irq_enable ( uint8_t  flags )

inlinestatic

Enable IRQs (nested).

If called after calling irq_disable, this function will not activate IRQs if they were not active before.

Parameters

flags

the flags to control this behaviour.

is_irq_enabled()

static uint8_t is_irq_enabled ( void  )

inlinestatic

Determines, if the interrupt flags (IF) is set.

Returns

1 if the IRQ is enable for the CPU.