OA_MORE_THAN_B<='0';OB_MORE_THAN_A<='1';OA_EQUAL_B<='0';
ELSIF(A(0)>B(0))THEN
OA_MORE_THAN_B<='1';OB_MORE_THAN_A<='0';OA_EQUAL_B<='0';
ELSIF(A(0) OA_MORE_THAN_B<='0';OB_MORE_THAN_A<='1';OA_EQUAL_B<='0'; ELSE ——如果输入中两个数相等的标志位为0，则表明高位不相等，停止比较，输出结果。 OA_MORE_THAN_B<='0';OB_MORE_THAN_A<='0';OA_EQUAL_B<='1'; END IF; ELSE OA_MORE_THAN_B<=IA_MORE_THAN_B;OB_MORE_THAN_A<=IB_MORE_THAN_A; OA_EQUAL_B<=IA_EQUAL_B; END IF; END PROCESS; END BEHAV; LIBRARY IEEE; USE IEEE.STD_LOGIC_1164.ALL; USE IEEE.STD_LOGIC_UNSIGNED.ALL; ENTITY comparator IS PORT ( CLK : IN STD_LOGIC; SIN : IN STD_LOGIC_VECTOR (3 DOWNTO 0); SJ : IN STD_LOGIC_VECTOR (3 DOWNTO 0); Q : OUT STD_LOGIC); END comparator; ARCHITECTURE behave OF comparator IS SIGNAL SIN1 : INTEGER RANGE 0 TO 15; SIGNAL SJ1 : INTEGER RANGE 0 TO 15; BEGIN SIN1<= CONV_INTEGER(SIN); SJ1<= CONV_INTEGER(SJ); PROCESS(CLK ) BEGIN IF (CLK'EVENT AND CLK = '1') THEN IF SIN1