The overall tone was technical and engaging, structured around a practical low-level architecture problem.

The interviewer provided a specific hardware constraint and evaluated how to design a custom memory manager (my_malloc / my_free) using a single control register, followed by a follow-up question on scaling the solution when hardware constraints change.

Overall, it was a fair interview that tested low-level C concepts, hardware awareness, bitwise operations, and problem-solving under real-world embedded constraints.

You are given:

• A 32-bit hardware register (uint32_t register).
• A contiguous memory pool consisting of 32 rows, where each row is 64 bits wide.

Task: Write my_malloc and my_free functions to manage allocations and deallocations for this memory pool.

Part 2: The memory pool is expanded to 64 rows (each row remains 64 bits wide).

Task: How would you manage this expanded memory pool using 32-bit registers? Update my_malloc and my_free accordingly.