If registers A, B, and C contain the values 12, 65, and 87 respectively, and they are pushed to the stack in the order A, then B, then C, what values do A, B, and C have if they then are pulled from...

If registers A, B, and C contain the values 12, 65, and 87 respectively, and they are pushed to the stack in the order A, then B, then C, what values do A, B, and C have if they then are pulled from the stack in the order C, then A, then B? List and describe the purpose of each of the components of the processor.