The difference between logical shift right, arithmetic shift right, and rotate right

Question

I\'ve been reading the classic Hacker\'s delight and I am having trouble understanding the difference between logical shift right,arithmetic shift right, and rotate right. P

Answer 1

Logical right shift means shifting the bits to the right and MSB(most significant bit) becomes 0.

Example: Logical right shift of number 1 0 1 1 0 1 0 1 is 0 1 0 1 1 0 1 0.

Arithmetic right shift means shifting the bits to the right and MSB(most significant bit) is same as in the original number.

Example: Arithmetic right shift of number 1 0 1 1 0 1 0 1 is 1 1 0 1 1 0 1 0.