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Situations in which 'else' or 'elsif' are unnecessary.

apalopohapa apalopohapa is offline

Junior Member

Join Date: Oct 2009

Posts: 1

10-20-2009

Hello.

Code:

signal slv : std_logic_vector(1 downto 0);
signal s1,s2 : std_logic;
process()
begin
  s1 <= '0';
  s2 <= '0';
-----------------
--
-- Version with 'elsif'
--
  if(slv = "00") then
    s1 = '1';
  elsif (slv = "10") then
    s2 = '1';
  end if;
-----------------
--
-- Version without 'elsif'
--
  if (slv = "00") then
    s1 <= '1';
  end if;
  if (slv = "10") then
    s2 <= '1';
  end if;
-----------------
end process;

Any difference?

Last edited by apalopohapa; 10-20-2009 at 06:19 PM..

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