When & Which

Feature	`for` Loop	`while` Loop	`for-generate` Statement
Execution	Sequential	Sequential	Concurrent
Usage Location	Inside a `process`	Inside a `process`	Outside a `process`
Iteration	Fixed number of times	Repeats while a condition is `true`	Creates N physical copies
Purpose	Algorithmic tasks	Searching or Polling	Hardware Replication

Use a for loop when...
- You need to repeat an action a specific number of times.
- Iterating through all the bits of a vector, initializing every address in a memory.
Use a while loop when...
- You need to repeat an action until a condition changes, and you don't know how long that will take.
- Searching for the first occurrence of a value, waiting for a status flag to be set in a testbench.
Use a for-generate statement when...
- You need to create multiple, regular instances of hardware components or concurrent statements.
- Building an N-bit register from N flip-flops, creating a chain of adders, connecting several identical modules to a bus.

Remember, all loops have the same syntax rules, so you just need to remember the structure. Good luck! :+1: