interrupt.h File Reference

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Macros
Global manipulation of the interrupt flag
The global interrupt flag is maintained in the I bit of the status register (SREG). Handling interrupts frequently requires attention regarding atomic access to objects that could be altered by code running within an interrupt context, see <util/atomic.h>. Frequently, interrupts are being disabled for periods of time in order to perform certain operations without being disturbed; see Problems with reordering code for things to be taken into account with respect to compiler optimizations.
#define	sei()   __asm__ __volatile__ ("sei" ::: "memory")
#define	cli()   __asm__ __volatile__ ("cli" ::: "memory")
Macros for writing interrupt handler functions
#define	ISR(vector, attributes)
#define	SIGNAL(vector)
#define	EMPTY_INTERRUPT(vector)
#define	ISR_ALIAS(vector, target_vector)
#define	reti()   __asm__ __volatile__ ("reti" ::: "memory")
#define	BADISR_vect
ISR attributes
#define	ISR_BLOCK
#define	ISR_NOBLOCK
#define	ISR_NAKED
#define	ISR_FLATTEN
#define	ISR_NOICF
#define	ISR_NOGCCISR
#define	ISR_ALIASOF(target_vector)