How to clear the errors for microprocessor design [closed]

The initial blocks need to be moved to a test bench.
You cannot connect the outputs with an assign statement and directly change the values in an initial block.
Synchrounus logic should use non-blocking (<=)
inout is a tri-state which need to be assigned as:
- assign adbus = output_enable ? adbus_out : 8'bz;
The clk driver (always #10 clk = ~clk;) needs to be in the test bench.