Q7:

Part a) Why does embedded programming use extensions to C? Part b) What is the downside of extensions regarding code portability? Part c) What is an intrinsic function? Part d) In MSP430, interrupts are enabled/disabled by writing to the bit called GIE in the status register (SR: R2). Why do we use functions like below? Cant we write the code directly in C?

 _enable_interrupts(); _disable_interrupts();