Hello

can anyone tell me how can i make a hexadecimal calculator that receive from 1 to 8 double words, then enter the first operand, then the second operand, then choose the operator and then give me the result.

example:
enter from 1 to 8 double words to execute (example with 1 doubleword)
n1: 00000002
n2: 00000001
op: /
result: 00000001

Hope someone can help me

thanks