61. Bit Operations using Macros

In embedded systems, modifying specific bits of control or status registers is a frequent task. You’re given an 8-bit register (uint8_t) and must perform the following bit operations on it:

• Set bits 2 and 7
• Clear bit 3
• Toggle bit 5

Your task is to implement a function that:

• Accepts a uint8_t reg as input
• Applies all the above operations in the given order
• Returns the updated register value

Use proper bitwise macros for maintainability.

Example-1

Input: 0
Output: 164

(00000000 → 10100100)

Example-2

Input: 255
Output: 215

(11111111 → Set 2 & 7 → already set, Clear 3 → unset bit 3, Toggle 5 → flip bit 5 → becomes 0)

Example-3

Input: 36
Output: 132

(00100100 → Toggle 5 → cleared, Clear 3 → already clear, Set 2 and 7 → becomes 10000100)