copyleft: gplv3 added and set repo to public

[calu.git] / cpu / src / extension.vhd

diff --git a/cpu/src/extension.vhd b/cpu/src/extension.vhd
index ab53a3c6ef02e778ec5f04e690b60b6739833352..ad5651e8f55b0b948a4479ff9b1d6c675f88587f 100644 (file)
--- a/cpu/src/extension.vhd
+++ b/cpu/src/extension.vhd
@@ -1,10 +1,31 @@
+--   `Deep Thought', a softcore CPU implemented on a FPGA
+--
+--  Copyright (C) 2010 Markus Hofstaetter <markus.manrow@gmx.at>
+--  Copyright (C) 2010 Martin Perner <e0725782@student.tuwien.ac.at>
+--  Copyright (C) 2010 Stefan Rebernig <stefan.rebernig@gmail.com>
+--  Copyright (C) 2010 Manfred Schwarz <e0725898@student.tuwien.ac.at>
+--  Copyright (C) 2010 Bernhard Urban <lewurm@gmail.com>
+--
+--  This program is free software: you can redistribute it and/or modify
+--  it under the terms of the GNU General Public License as published by
+--  the Free Software Foundation, either version 3 of the License, or
+--  (at your option) any later version.
+--
+--  This program is distributed in the hope that it will be useful,
+--  but WITHOUT ANY WARRANTY; without even the implied warranty of
+--  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+--  GNU General Public License for more details.
+--
+--  You should have received a copy of the GNU General Public License
+--  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
 library IEEE;
 use IEEE.std_logic_1164.all;
 use IEEE.numeric_std.all;
 
 use work.common_pkg.all;
 use work.extension_pkg.all;
-use work.alu_pkg.all;
+--use work.alu_pkg.all;
 --use work.gpm_pkg.all;
 
 entity extension_gpm is
@@ -17,15 +38,18 @@ entity extension_gpm is
                --System inputs
                        clk :   in std_logic;
                        reset : in std_logic;
-               -- Standartinterface                    
+               -- general extension interface                  
                        ext_reg  : in extmod_rec;
-                       data_out : out gp_register_t;
+                        data_out : out gp_register_t;
                -- Input
-                       alu_nxt : in alu_result_rec;
+                       psw_nxt : in status_rec;
+                       paddr   : in paddr_t;
+                       pinc    : in std_logic;
+                       pwr_en  : in std_logic;
                -- Ouput
-                        psw     : out status_rec
-
-                       
+                        psw     : out status_rec;
+                        pval    : out gp_register_t;
+                        pval_nxt : out gp_register_t
                );
                
 end extension_gpm;