The zero flag is useful in implementing countdown loops (loops in which the counting variable is decremented until zero). Justify the statement by means of an example. Fill in the blanks in the...

The zero flag is useful in implementing countdown loops (loops in which the counting

variable is decremented until zero). Justify the statement by means of an example.

Fill in the blanks in the following table:

You do not have to fill in the lines with the mov instruction. The AL column represents

the AL value after executing the corresponding instruction.