greater.vbe

来自「i need of vhdl code for 32-bit risc proc」· VBE 代码 · 共 14 行

ENTITY greater IS
PORT(
exp1 : IN BIT_VECTOR(2 downto 0);
exp2 : IN BIT_VECTOR(2 downto 0);
e1greater : OUT BIT
);
END greater;

ARCHITECTURE greater_arch OF greater IS
begin
e1greater <= (  ( exp1(2) AND NOT(exp2(2)) ) OR
               ( NOT( exp1(2) XOR exp2(2) ) AND ( exp1(1) AND NOT(exp2(1)) ) ) OR 
              ( NOT( exp1(2) XOR exp2(2) ) AND NOT( exp1(1) XOR exp2(1) ) AND ( exp1(0) AND NOT(exp2(0)) ) )  );
end;