t175.vhd

来自「Workshop vhdl code from Esperan」· VHDL 代码 · 共 23 行

--
-- This file tests for resource sharing when using 
-- identical expressions more than once inside a complex expression.
-- This code should create only one adder if resource sharing is handeled.
--
entity TEST is 
	port( A,B,C : in integer range 0 to 7;
	      Y     : out integer range 0 to 15);
end TEST;
architecture T175 of TEST is
begin
	process(A, B, C)
	begin
		if (A + B = 0) then 
			Y <= A;
		elsif (A + B < 10) then
			Y <= B;
		else
			Y <= C;
		end if;
	end process;
end T175;