import(life): Add computer organization experiment 4.

1 files changed, 13 insertions, 0 deletions

diff --git a/works/life/computer-organization-experiment/adder_1.vhdl b/works/life/computer-organization-experiment/adder_1.vhdl
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+++ b/works/life/computer-organization-experiment/adder_1.vhdl
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+LIBRARY IEEE;
+USE IEEE.STD_LOGIC_1164.ALL;
+USE IEEE.STD_LOGIC_UNSIGNED.ALL;
+
+entity adder_1 is
+    port (A, B, CIN:in std_logic; S, COUT: out std_logic);
+end adder_1;
+
+architecture behavior of adder_1 is
+begin
+    S <= (A XOR B) XOR CIN;
+    COUT <= (A AND B) OR (B AND CIN) OR (CIN AND A);
+end behavior;