在vhdl中完成了
library ieee;
use ieee.std_logic_1164.all;
package max is
function max(a,b : in std_logic_vector)
return std_logic_vector;
function max(a,b : in bit_vector)
return bit_vector;
function max(a,b : in integer)
return integer;
end;
package body max is
function max(a,b : in std_logic_vector)
return std_logic_vector is
begin
if a>b then return a;
else return b;
end if;
end max;
function max(a,b : in integer)
return integer is
begin
if a>b then return a;
else return b;
end if;
end max;
function max(a,b : in bit_vector)
return bit_vector is
begin
if a>b then return a;
else return b;
end if;
end max;
end;
但不晓得怎么用啊。它应该怎么保存啊？还是直接就在后面跟主程序了。 |
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