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er1, Readcounter0)));

　　Next_sreg=M0full;

　　Next_sreg1=M0empty;

　　IF ( RESET=''1'' ) THEN

　　Next_sreg=STATE0;

　　BP_dcounter = (Std_logic_vector''("00"));

　　ELSE

　　CASE Sreg IS

　　WHEN M0full =>

　　Next_sreg=M0writewait;

　　BP_dcounter = (( Std_logic_vector''(BP_dcounter1, BP_dcounter0)));

　　WHEN M0writewait =>

　　IF ( (Sreg1=M0empty)) THEN

　　Next_sreg=Write0;

　　BP_dcounter = (( Std_logic_vector''(BP_dcounter1, BP_dcounter0)) + Std_logic_vector''("01"));

　　ELSE

　　Next_sreg=M0writewait;

　　BP_dcounter = (( Std_logic_vector''(BP_dcounter1, BP_dcounter0)));

　　END IF;

　　WHEN STATE0 =>

　　Next_sreg=Write0;

　　BP_dcounter = (( Std_logic_vector''(BP_dcounter1, BP_dcounter0)) +

　　Std_logic_vector''("01"));

　　WHEN Write0 =>

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