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¹¦ÄÜ ·ÂÕæ ²¨ÐΠʱÐò ·ÂÕæ ²¨ÐÎ 4¡¢Óë»ò·ÇÃÅ£º±àдVHDL´úÂ루²Î¼û½Ì²ÄP36£©£¬·ÂÕæÑéÖ¤¡£ LIBRARY IEEE; USE IEEE.STD_LOGIC_1164.ALL; ENTITY EX_4AND_OR_NOT_1 IS PORT( A,B:IN STD_LOGIC; C,D:IN STD_LOGIC; Y:OUT STD_LOGIC); END EX_4AND_OR_NOT_1; ARCHITECTURE D OF EX_4AND_OR_NOT_1 IS SIGNAL TEMP1:STD_LOGIC; SIGNAL TEMP2:STD_LOGIC; SIGNAL TEMP3:STD_LOGIC; BEGIN TEMP1<=A AND B; TEMP2<=C AND D; TEMP3<=TEMP1 OR TEMP2; Y<=NOT TEMP3; END D; ÈÎÎñ ´úÂë ¹¦ÄÜ ·Â Õæ ²¨
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