可编程硬件描述语言VHDL Quartus四选一电路源代码.docx

VHDL Quartus四选一电路源代码 --四选一电路 --------------------- LIBRARY IEEE; USE IEEE.STD_LOGIC_1164.ALL; ------------------------- ENTITY PROGRAM IS PORT( S:IN STD_LOGIC_VECTOR(1 DOWNTO 0); DATAIN:IN STD_LOGIC_VECTOR(3 DOWNTO 0); DATAOUT:OUT STD_LOGIC ); END ENTITY PROGRAM; ------------------------------