Assembly code for handling external interrupts on RB0 INT WJEC EDUQAS

This video is for my WJEC / EDUQAS A level Electronics students. I explain how to configure RB0/INT for external interrupts. I also demonstrate a simple ISR (interrupt service routine) and explain how to determine the source of the interrupt event. We examine the INTCON and OPTION_REG registers. I know it's a long video, but there's lots of useful stuff to learn!