Interrupt Controller (INTC) Algorithm and Programming [2-part question]:

1. Write the low-level algorithm and ARM assembly to unmask IRQ interrupts for UART3 in the INTC.
2. Write the low-level algorithm and ARM assembly to check if an IRQ is from UART3 in the INTC. Assume that some sort of IRQ happened and the PC is now in the INT_DIRECTOR section of the code. If the interrupt is from UART3, it should branch to a label named UART_HANDLER. If it is not from UART3, it should branch to a label named PASS_ON. The code should prepare the INTC for the next interrupt if the current interrupt was from UART3. Nothing is needed with the UART module, this problem is only about how to interact with the INTC to check for interrupts