CMPE263-Homework 4-Ch5 - Computer Architecture and...

Computer Architecture and
Organization I
CMPE 263
Spring 2017
Dept. of Computer Science and
Engineering
College of Engineering
Qatar University
Homework #4 – Spring 2017
CHAPTIR FIVE - Basic Computer Organization and Design
Due date Saturday, April 29, 2017 midnight
Reem Sharef
201309309

Q5-1: A computer uses a memory unit with 256K words of 32 bits each. A binary
instruction code is stored in one word oi memory. The instruction has four parts: an
indirect bit. an operation code, a register code part to specify one of 64 registers,
and an address part.
a. How many bits are there in the operation code, the register code part, and the
address part?
b. Draw the instruction word format and indicate the number of bits in each part.
17
c. How many bits are there in the data and address inputs oi the memory?