H.W 2: Write a piece of assembly code that can program PPI 8255 as port A as I/P,Port B as O/P,port CL as I/P and Port CH as O/P (your program should read Data from Port A then send it to Port B ,read Data from Port C lower then send it to Port Cupper,)if you know that command register in addresses by 4FF7H and PPI A0 is connected to A0 ,PPI Al is connected to A1.

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