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Arithmetic Logic Unit (ALU)

Arithmetic Logic Unit (ALU). Discussion D7.4 Example 21. ALU. nf = negative flag (nf=1 if y(n-1)=1 zf = zero flag (zf = 1 if y = 0) ovf = overflow flag cf = carry flag. alu.vhd. -- Example 21: alu library IEEE; use IEEE.STD_LOGIC_1164. all ; use IEEE.STD_LOGIC_unsigned. all ;

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