#include <__armlib.h>
void __ARMLIB_enableIRQ(void);
__ARMLIB_enableIRQ globally enables the ARM's IRQ interrupts by clearing the I bit of the CPSR register.
__ARMLIB_enableIRQ is an ARM specific extension provided by CrossWorks C.
__ARMLIB_disableIRQ __ARMLIB_enableFIQ __ARMLIB_disableFIQ __ARMLIB_isrEnableIRQ __ARMLIB_isrDisableIRQ