Homework # 4    Due Monday, February 2 prior to the start of class



	Use Sim68 (or the 68HC11 simulator of your choice) to simulate the
	"subtract with borrow" program on page 53 of your text.  Use this to
	make sure that you fully understand how the carry flag is used as
	a "borrow" flag when doing subtraction.  I'm not sure what I will ask
	you to hand in from this part (I'll decide by Wednesday)
	
	Also, from the Exercises at the end of Chapter 2 in your book:


	E2.7, E2.9, E2.11, E2.12, E2.16, E2.22



	You may want to also look at (but do not need to hand in) E2.20.  You
	will have a lab based on this exact problem, so it might be worth
	understanding.