Performs a Shift Right operation on the input value A. The following listing shows the VDHL description of the SHR operation.
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entity SHR8Bit is Port ( Input : in BIT_VECTOR(7 downto 0); -- 8-bit input value Output : out BIT_VECTOR(7 downto 0); -- 8-bit output value Cout : out BIT -- Carry-out flag ); end SHR8Bit; architecture Behavioral of SHR8Bit is begin Cout <= Input(0); Output(0) <= Input(1); Output(1) <= Input(2); Output(2) <= Input(3); Output(3) <= Input(4); Output(4) <= Input(5); Output(5) <= Input(6); Output(6) <= Input(7); Output(7) <= '0'; end Behavioral; |