8 8-bit ALU register

The task is to design a component which could be used in the core of a microprocessor:
We shall call this Register_ALU: • the design will contain 8 8-bit registers which can be loaded from an external input; • the design will contain a block of logic which will have two 8-bit inputs A[7..0] and B[7..0], and will produce one 8-bit output C[7..0]; • the output will be formed as o A and B, or o A or B, or o A plus B, or o A minus B; • the operation {logical and, logical or, arithmetic plus, arithmetic minus} will be selected by an external input to the design, called Op_Code[1..0]; • the output C[7..0] can be o loaded back into one of the eight internal registers, or o read externally.
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