Input from 80868088 output 7segment display


I need help. I have a program that is very difficult to do. I have to create the circuit and software necessary to take a 4 bit input that uses switches and through a ASM program convert that 4 bit number into necessary outputs to dispaly the equivalent '0'-'F' hex value on the 7 segment LED. THe crcuit will be connected through the PC's parallel port for all power, input and output requirements. And the software should display from row 5 col 0:. If anyone has any assistance on helping me I would appreciate Thanks:):)

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