EE 361 Fall 2003: Homework 11

Due: 11/12/03 (wed)

Turn these in by hand at the beginning of class.

Textbook problems (2 pts per problem)

• Textbook Problem 5.17 (2 pts)
• Textbook Problem 5.22 (2 pts).  Note that the jr instruction is R-type.  This means that its opcode is 0, and to distinguish it from other R-type instructions, the function field must be examined.  Therefore the input to the controller must change so that it also includes the function field from the instruction register.  
• Textbook Problem 4.22 (2 pts)
• Textbook Problem 4.42 (2 pts).  Hint use truth tables.
• Textbook Problem 4.46 (2 pts).
• Textbook Problem 4.50 (1 pt).  This problem uses Figure 4.56 in the textbook.  There are two adder circuits.  The first is the traditional ripple adder, and the second is known as carry save.  For more information, read Problem 4.49 (but don't do it) and also the description of carry save on the next page.