MSP430 IAR C/C++ Compiler reference guide - Rice University

Primitives for interrupts, concurrency, and OS-related programming/* Class for controlling critical blocks */class Mutex{public:Mutex (){_state = __get_interrupt_state();__disable_interrupt();}~Mutex (){__set_interrupt_state(_state);}private:__istate_t _state;};void f(){static long next_stop = 100;extern void do_stuff();long tick;/* A critical block */{Mutex m;/* Read volatile variable 'tick_count' in a safe wayand put the value in a local variable */}tick = tick_count;}if (tick >= next_stop){next_stop += 100;do_stuff();}C++ AND SPECIAL FUNCTION TYPESC++ member functions can be declared using special function types. However, interruptmember functions must be static. When calling a non-static member function, it must be28MSP430 IAR C/C++ CompilerReference Guide