TOTAL:OUT STD_LOGIC_VECTOR(3 DOWNTO 1);
SHIJIAN:BUFFER STD_LOGIC_VECTOR(3 DOWNTO 0);
FUWEI,KAISHI,CLK:IN STD_LOGIC);
END BIAOJUE;
ARCHITECTURE FUNG OF BIAOJUE IS
BEGIN
PROCESS(AA,CLK,KAISHI,FUWEI)
VARIABLE SUO:BOOLEAN;
VARIABLE SUM:STD_LOGIC_VECTOR(1 TO 3);
BEGIN
IF (FUWEI='0') THEN
PASS<='0';
SHIJIAN<="1010";
SUO:=FALSE;
SUM:="000";
TOTAL<="000";
ELSIF (CLK'EVENT AND CLK='1') THEN
IF (KAISHI='1') THEN