Subversion Repositories mod_mult_exp

-----------------------------------------------------------------------

----                                                               ----

---- Montgomery modular multiplier and exponentiator               ----

----                                                               ----

---- This file is part of the Montgomery modular multiplier        ----

---- and exponentiator project                                     ----

---- http://opencores.org/project,mod_mult_exp                     ----

----                                                               ----

---- Description:                                                  ----

----     Properties file for multiplier and exponentiator          ----

----     (64 bit).                                                ----

---- To Do:                                                        ----

----                                                               ----

---- Author(s):                                                    ----

---- - Krzysztof Gajewski, gajos@opencores.org                     ----

----                       k.gajewski@gmail.com                    ----

----                                                               ----

-----------------------------------------------------------------------

----                                                               ----

---- Copyright (C) 2014 Authors and OPENCORES.ORG                  ----

----                                                               ----

---- This source file may be used and distributed without          ----

---- restriction provided that this copyright statement is not     ----

---- removed from the file and that any derivative work contains   ----

---- the original copyright notice and the associated disclaimer.  ----

----                                                               ----

---- This source file is free software; you can redistribute it    ----

---- and-or modify it under the terms of the GNU Lesser General    ----

---- Public License as published by the Free Software Foundation;  ----

---- either version 2.1 of the License, or (at your option) any    ----

---- later version.                                                ----

----                                                               ----

---- This source 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 Lesser General Public License for more   ----

---- details.                                                      ----

----                                                               ----

---- You should have received a copy of the GNU Lesser General     ----

---- Public License along with this source; if not, download it    ----

---- from http://www.opencores.org/lgpl.shtml                      ----

----                                                               ----

-----------------------------------------------------------------------

library IEEE;

use IEEE.STD_LOGIC_1164.all;

package properties is

-- Declare constants

 constant BYTE             : INTEGER := 8;

constant WORD_LENGTH       : INTEGER := 64;

constant WORD_INTEGER     : INTEGER := 7;

constant WORD_INT_LOG     : INTEGER := 3;

constant WORD_INT_LOG_STR : STD_LOGIC_VECTOR(WORD_INT_LOG - 1 downto 0) := "111";

constant count_up : STD_LOGIC_VECTOR(1 downto 0) := "00";

constant count_down : STD_LOGIC_VECTOR(1 downto 0) := "01";

constant do_nothing : STD_LOGIC_VECTOR(1 downto 0) := "11";

type multiplier_states is (NOP, CALCULATE_START, STOP);

type exponentiator_states is (FIRST_RUN, NOP,

    READ_DATA_BASE, READ_DATA_MODULUS, READ_DATA_EXPONENT, READ_DATA_RESIDUUM,

    COUNT_POWER, EXP_Z, SAVE_EXP_Z, EXP_P, SAVE_EXP_P, EXP_CONTROL, EXP_END, SAVE_EXP_MULT,

    INFO_RESULT, SHOW_RESULT);

type fin_data_ctrl_states is (NOP, PAD_FAIL, PAD_FAIL_NOP, PAD_FAIL_DECODE,

    DECODE_IN, READ_DATA, DECODE_READ, DECODE_READ_PROP, MAKE_FINALIZE, OUTPUT_DATA, INFO_STATE,

    TEMPORARY_STATE, DATA_TO_OUT_PROPAGATE, DATA_TO_OUT_PROPAGATE2, MOVE_DATA, MOVE_OUTPUT_DATA);

---- mnemonics for exponentiator

constant mn_read_base        : STD_LOGIC_VECTOR(2 downto 0) := "000";

constant mn_read_modulus     : STD_LOGIC_VECTOR(2 downto 0) := "001";

constant mn_read_exponent    : STD_LOGIC_VECTOR(2 downto 0) := "010";

constant mn_read_residuum    : STD_LOGIC_VECTOR(2 downto 0) := "011";

constant mn_count_power      : STD_LOGIC_VECTOR(2 downto 0) := "100";

constant mn_show_result      : STD_LOGIC_VECTOR(2 downto 0) := "101";

constant mn_show_status      : STD_LOGIC_VECTOR(2 downto 0) := "110";

constant mn_prepare_for_data : STD_LOGIC_VECTOR(2 downto 0) := "111";

---- addresses for memory data

constant addr_base     : STD_LOGIC_VECTOR(3 downto 0) := "0000";

constant addr_modulus  : STD_LOGIC_VECTOR(3 downto 0) := "0010";

constant addr_exponent : STD_LOGIC_VECTOR(3 downto 0) := "0100";

constant addr_power    : STD_LOGIC_VECTOR(3 downto 0) := "0101";

constant addr_residuum : STD_LOGIC_VECTOR(3 downto 0) := "1000";

constant addr_one      : STD_LOGIC_VECTOR(3 downto 0) := "1001";

constant addr_unused   : STD_LOGIC_VECTOR(3 downto 0) := "1101";

constant addr_z        : STD_LOGIC_VECTOR(3 downto 0) := "1110";

constant addr_p        : STD_LOGIC_VECTOR(3 downto 0) := "1111";

---- help_statuses_for_clarity

constant stat_all_data_readed : STD_LOGIC_VECTOR(5 downto 0) := "111111";

constant stat_clear_status    : STD_LOGIC_VECTOR(5 downto 0) := "000000";

end properties;

package body properties is

end properties;