What are the three types of bitwise shifts?

Logical shift

Arithmetic shift

Circular shift

Explain a logical shift

All binary bits move the number of stated places to the left or right

It doesn't account for the sign bit

How is a logical shift padded?

MSB/LSB is padded with a 0

Explain an arithmetic shift

All binary bits move the stated number of places to the left or right

It accounts for the sign bit

What is the effect of an arithmetic shift?

Each shifted place is a factor of 2, left multiplies, right divides

How is an arithmetic shift padded?

The MSB is padded with a 0 for a positive or a 1 for a negative

Explain a circular shift

The LSB becomes the MSB, or vice versa

What is the effect of a circular shift?

No bits are lost

What are the three types of binary masks?

AND

OR

XOR

What is the purpose of an AND mask?

Extracts a subset of bits in the value

What is the purpose of an OR mask?

Sets a subset of bits to the value

What is the purpose of an XOR mask?

Toggles a subset of the bits