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-------------------------------------------------------------------------------
-- Company:
-- Engineer:
--
-- Create Date: 05/03/2025 08:02:39 PM
-- Design Name:
-- Module Name: Mux - Behavioral
-- Project Name:
-- Target Devices:
-- Tool Versions:
-- Description:
--
-- Dependencies:
--
-- Revision:
-- Revision 0.01 - File Created
-- Additional Comments:
--
-------------------------------------------------------------------------------
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
-- Uncomment the following library declaration if using
-- arithmetic functions with Signed or Unsigned values
--use IEEE.NUMERIC_STD.ALL;
-- Uncomment the following library declaration if instantiating
-- any Xilinx leaf cells in this code.
--library UNISIM;
--use UNISIM.VComponents.all;
entity Mux is port (
ADCbin : in STD_LOGIC_VECTOR (3 downto 0);
Dizaines : in STD_LOGIC_VECTOR (3 downto 0);
Unites_ns : in STD_LOGIC_VECTOR (3 downto 0);
Code_signe : in STD_LOGIC_VECTOR (3 downto 0);
Unite_s : in STD_LOGIC_VECTOR (3 downto 0);
BTN : in STD_LOGIC_VECTOR (1 downto 0);
erreur : in STD_LOGIC;
S2 : in STD_LOGIC;
DAFF0 : out STD_LOGIC_VECTOR (3 downto 0);
DAFF1 : out STD_LOGIC_VECTOR (3 downto 0));
end Mux;
architecture Behavioral of Mux is
constant pressed : STD_LOGIC := '1';
constant char_E : STD_LOGIC_VECTOR(3 downto 0) := "1110"; -- E
constant char_r : STD_LOGIC_VECTOR(3 downto 0) := "1111"; -- r (for "Er")
signal break : BOOLEAN := FALSE;
signal unit_input_buf : STD_LOGIC_VECTOR(3 downto 0);
signal tens_input_buf : STD_LOGIC_VECTOR(3 downto 0);
signal unit_sim_sink : string(1 to 1);
signal tens_sim_sink : string(1 to 1);
begin
decide : process
begin
-- HANDLE SWITCH {{{
if ( (S2 = pressed) or (erreur = '1')) then
break <= TRUE; -- Avoids double printing on 7seg
tens_input_buf <= char_E;
unit_input_buf <= char_r;
end if;
-- }}}
-- HANDLE BUTTONS {{{
if break = FALSE then
case (BTN) is
when "00" =>
unit_input_buf <= Unites_ns;
tens_input_buf <= Dizaines;
when "01" =>
-- impossible de buster "C" en hex
-- encore moins avoir une deuxième décimale
-- on mets donc les "Dizaines" à zéro
unit_input_buf <= ADCbin;
tens_input_buf <= "0000";
when "10" =>
unit_input_buf <= Unite_s;
tens_input_buf <= Code_signe;
when "11" =>
tens_input_buf <= char_E;
unit_input_buf <= char_r;
when others =>
tens_input_buf <= char_E;
unit_input_buf <= char_r;
end case;
end if;
-- }}}
end process;
end Behavioral;
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