1 -- `Deep Thought', a softcore CPU implemented on a FPGA
3 -- Copyright (C) 2010 Markus Hofstaetter <markus.manrow@gmx.at>
4 -- Copyright (C) 2010 Martin Perner <e0725782@student.tuwien.ac.at>
5 -- Copyright (C) 2010 Stefan Rebernig <stefan.rebernig@gmail.com>
6 -- Copyright (C) 2010 Manfred Schwarz <e0725898@student.tuwien.ac.at>
7 -- Copyright (C) 2010 Bernhard Urban <lewurm@gmail.com>
9 -- This program is free software: you can redistribute it and/or modify
10 -- it under the terms of the GNU General Public License as published by
11 -- the Free Software Foundation, either version 3 of the License, or
12 -- (at your option) any later version.
14 -- This program is distributed in the hope that it will be useful,
15 -- but WITHOUT ANY WARRANTY; without even the implied warranty of
16 -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 -- GNU General Public License for more details.
19 -- You should have received a copy of the GNU General Public License
20 -- along with this program. If not, see <http://www.gnu.org/licenses/>.
23 use IEEE.std_logic_1164.all;
24 use IEEE.numeric_std.all;
26 use work.common_pkg.all;
28 use work.extension_pkg.all;
29 --use work.gpm_pkg.all;
31 entity execute_stage is
35 RESET_VALUE : std_logic
37 --LOGIC_ACT : std_logic;
44 dec_instr : in dec_op;
45 regfile_val : in gp_register_t;
46 reg_we : in std_logic;
47 reg_addr : in gp_addr_t;
48 ext_reg : in extmod_rec;
50 result : out gp_register_t;--reg
51 result_addr : out gp_addr_t;--reg
52 addr : out word_t; --memaddr
53 data : out gp_register_t; --mem data --ureg
54 alu_jump : out std_logic;--reg
55 brpr : out std_logic; --reg
56 wr_en : out std_logic;--regop --reg
57 dmem : out std_logic;--memop
58 dmem_write_en : out std_logic;
59 hword : out std_logic;
60 byte_s : out std_logic;
62 ext_data_out : out gp_register_t