2. Extract the Nibble from an 8-bit Register

Write a C program to extract a nibble (4-bit value) from an 8-bit register.

• The user provides an 8-bit integer (register value) and a nibble position (0 for lower nibble, 1 for upper nibble).
• Your task is to extract and print the nibble’s decimal value.

Input Format

• An 8-bit integer (0-255) representing the register value.
• A nibble position (0 for lower, 1 for upper).

Output Format

• The extracted 4-bit value (0-15).

Example 1 (Extract Lower Nibble)

Input:

170 0

Output:

10

Explanation:

• 170 in binary = 10101010
• Lower nibble = 1010 (decimal 10)