diff --git a/fpga/src/bfpu.vhd b/fpga/src/bfpu.vhd
index e69de29..c85e7c4 100644
--- a/fpga/src/bfpu.vhd
+++ b/fpga/src/bfpu.vhd
@@ -0,0 +1,98 @@
+-- bfpu.vhd
+-- Created on: Di 26. Sep 08:27:47 CEST 2023
+-- Author(s): Yannick Reiß
+-- Content: Connect the entities of the processing unit.
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+
+-- Entity bfpu: brainfuck processing unit
+entity bfpu is
+    port(
+        clk     :   in  std_logic;                      -- board clock
+        sw      :   in  std_logic_vector(7 downto 0);   -- Input for instruction ,
+        led     :   out std_logic_vector(7 downto 0)    -- Output for instruction .
+    );
+end bfpu;
+
+-- Architecture arch of bfpu: setup and connect components
+architecture arch of bfpu is
+
+    component instructionMemory
+        port(
+            clk             :   in  std_logic;
+            instructionAddr :   in  std_logic_vector(7 downto 0);
+            instruction     :   out std_logic_vector(2 downto 0)
+        );
+    end component;
+
+    component alu
+        port(
+            instruction	:	in	std_logic_vector(2 downto 0);
+            old_cell	:	in	std_logic_vector(7 downto 0);
+            old_pointer :   in	std_logic_vector(15 downto 0);
+            extern_in	:   in	std_logic_vector(7 downto 0);
+
+            new_cell	:	out	std_logic_vector(7 downto 0);
+            new_pointer	:	out	std_logic_vector(15 downto 0);
+            enable_cell	:	out	std_logic;
+            enable_ptr	:	out	std_logic;
+            extern_out	:   out	std_logic_vector(7 downto 0)
+        );
+    end component;
+
+    component ptr
+        port(
+            clk	        :	in	std_logic;
+		    enable_ptr	:	in	std_logic;
+		    new_ptr	    :	in	std_logic_vector(15 downto 0);
+		    old_ptr	    :	out	std_logic_vector(15 downto 0)
+        );
+    end component;
+
+    signal s_clk            :   std_logic;
+    signal s_instrAddr      :   std_logic_vector(7 downto 0);
+    signal s_instruction    :   std_logic_vector(2 downto 0);
+
+    signal s_cell_out       :   std_logic_vector(7 downto 0);
+    signal s_cell_in        :   std_logic_vector(7 downto 0);
+    signal s_ptr_out        :   std_logic_vector(15 downto 0);
+    signal s_ptr_in         :   std_logic_vector(15 downto 0);
+
+    signal s_enable_cells   :   std_logic;
+    signal s_enable_ptr     :   std_logic;
+
+begin
+
+    s_clk <= clk;
+
+    instrMemory : instructionMemory
+    port map(
+        clk => s_clk,
+        instructionAddr => s_instrAddr,
+        instruction => s_instruction
+    );
+
+    alu_entity : alu
+    port map(
+        instruction	=>	s_instruction,
+        old_cell	=>	s_cell_out,
+        old_pointer =>	s_ptr_out,
+        extern_in	=>	sw,
+
+        new_cell	=>	s_cell_in,
+        new_pointer	=>	s_ptr_in,
+        enable_cell	=>	s_enable_cells,
+        enable_ptr	=>	s_enable_ptr,
+        extern_out	=>  led
+    );
+
+    ptr_bf : ptr
+    port map(
+        clk         => s_clk,
+        enable_ptr  => s_enable_ptr,
+        new_ptr     => s_ptr_in,
+        old_ptr     => s_ptr_out
+    );
+
+end arch;