isDI

BOOL isDI( UINT intsts )

intsts CPU interrupt status (details are implementation-dependent)

Return code:

TRUE (not 0): Interrupts disabled

FALSE: Interrupts enabled

Gets the status of external interrupt disabling stored in intsts.

Interrupts disabled status is the status in which µT-Kernel determines that interrupts are disabled.

intsts must be the value stored by DI(). If any other value is specified, the behavior is not guaranteed.

Sample usage:

	void foo()
{
		UINT intsts;
		DI(intsts);
		if ( isDI(intsts) ) {
			/* Interrupts were already disabled at the time this function was called.	*/
		} else {
			/* Interrupts were enabled at the time this function was called.	*/
		}
	EI(intsts);

}

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© T-Engine Forum and Viometrix, 2007 - 2009.