From 224d5fec9b9377faa4bf8d3da0e37f675ef5ea03 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Tue, 23 Nov 2021 09:51:36 +0800
Subject: import(life): Add computer organization experiment 4.

---
 works/life/computer-organization-experiment/adder_1.vhdl | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 works/life/computer-organization-experiment/adder_1.vhdl

(limited to 'works/life/computer-organization-experiment/adder_1.vhdl')

diff --git a/works/life/computer-organization-experiment/adder_1.vhdl b/works/life/computer-organization-experiment/adder_1.vhdl
new file mode 100644
index 0000000..625aae4
--- /dev/null
+++ b/works/life/computer-organization-experiment/adder_1.vhdl
@@ -0,0 +1,13 @@
+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;
-- 
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