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Differences between `always_comb` and `always_ff` blocks in SystemVerilog

In SystemVerilog, the `always_comb` block is used to describe combinational logic, meaning the outputs are purely based on the current inputs without any dependency on clock transitions. On the other hand, the `always_ff` block is used for sequential logic, where the outputs are updated only on clock edges.

The key difference lies in their sensitivity lists - `always_comb` does not have a sensitivity list since it is continuously evaluated whenever any of its inputs change, while `always_ff` requires a clock signal in its sensitivity list to trigger the updates on clock edges.

It is important to choose the appropriate block type based on the design requirements to ensure accurate and efficient implementation of your Verilog code.

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Focus keyword: differences between always_comb and always_ff blocks in SystemVerilog