Week 7

Question 1

_____ are translated only once, and can be called many times.

Answer 1

Procedures

Question 2

_____ have a calling mechanism involving the EIP.

Answer 2

Procedures

Question 3

Have a return mechanism involving the system stack.

Answer 3

Procedures

Question 4

For _________, arguments are substituted exactly as entered, without checking for memory, registers, or literals.

Answer 4

Macros

Question 5

For _________, the entire code is substituted for each call.

Answer 5

Macros

Question 6

Which logic gate outputs a “0” if both of its input values are the same?
i.e. If both inputs are “1” the output is a “0”, if both inputs are “0” the output is still a “0”.

Answer 6

XOR

Question 7

What does a NAND gate do?

Answer 7

Finds the result of ANDing two variables, then inverts the result.

Question 8

What does a NOR gate do?

Answer 8

Finds the result of Oring two variables, then inverts the result.

Question 9

What does a XNOR gate do?

Answer 9

Find the result of XORing two variables, then inverts the result.

Question 10

How many possible combinations of values are there for a function of n binary variables i.e. f(A, B, C)?

Answer 10

2^n combinations

Question 11

How do I write the following truth table into a Boolean function?

A B C R
0 0 0 0
0 0 1 1
0 1 0 1
0 1 1 0
1 0 0 1
1 0 1 0
1 1 0 0
1 1 1 1

Answer 11

Select all rows where R = 1
And the values in each row
Or the resulting terms
Set R equal to the expression

R = (~A~B)C + (~A)B(~C) + A(~B~C) + ABC

Question 12

Exclusive OR is the same as _____:

Answer 12

A and ~B OR ~A and B

Question 13

Multiple internal buses simplifies what process?

Answer 13

Bus arbitration