Difference between Blocking and Non-blocking Assignments in SystemVerilog

Blocking assignments in SystemVerilog are executed sequentially and in order. They do not allow the execution of subsequent statements until the current assignment is complete. This means that the value assigned to a variable is immediately updated before moving on to the next statement.

Non-blocking assignments, on the other hand, allow for asynchronous execution. They do not wait for the current assignment to complete before moving on to the next statement. This can lead to concurrent updates of variables, making them suitable for modeling synchronous behavior.

When designing in SystemVerilog, it is crucial to understand the distinction between blocking and non-blocking assignments, as they can significantly impact the functionality and performance of your code.