COMP212S2004MidTermExam1p1 ID             NAME

(1) Consider the following experiment involving two registers, Areg and Breg.

(1a) What is the purpose of this experiment ?



(1b) Explain in detail how does this circuit work and achieve the purpose stated in (1a).







(1c) There are few errors in the scheme. Correct the errors directly on the drawing by using a red (or blue) pen.