hi!hw 2 design a counter that counts the number of times the number “5†appears?

the conditions given are:
NumberIn : 4-bits wide (input)
Start: Reset counter and overflow flag to zero while start is high (input)
Count: 8-bit unsigned count (of the number of “5â€s that have occurred since start went
low (output)
Overflow: Goes high if count overflows (count is unsigned, so you only need to monitor
the adder carry out) and stays high until start is re-asserted.