Subversion Repositories vhdl-pipeline-mips

--

-- Este paquete contiene las constantes que se utilizan en el procesador MIPS Segmentado

--

-- Licencia: Copyright 2008 Emmanuel Luján

--

--      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 2 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, write

--      to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,

--      Boston, MA 02110-1301 USA.

-- 

-- Autor:       Emmanuel Luján

-- Email:       info@emmanuellujan.com.ar

-- Versión:    1.0

--

library ieee;

use ieee.std_logic_1164.all;

use ieee.numeric_std.all;

package SEGM_MIPS_CONST_PKG is

        --Constantes

        constant INST_SIZE      : INTEGER := 32;                -- Tamaño de una instrucción en bits

        constant ADDR_SIZE      : INTEGER := 5;                 -- Tamaño de una dirección

        constant NUM_REG        : INTEGER := 32;                -- Cantidad de registros en el banco de registros

        --constant NUM_ADDR     : INTEGER := 1073741824;        -- Cantidad de direcciones de la memoria, cada una de N bits (2 exp 30)

        constant NUM_ADDR       : INTEGER := 1024;              -- Cantidad de direcciones de la memoria, cada una de N bits (reducida)

        constant PC_COUNT       : STD_LOGIC_VECTOR(31 downto 0) :=  "00000000000000000000000000000100";  --De a cuanto suma el PC (de a 4 bits)

        constant ZERO32b        : STD_LOGIC_VECTOR(31 downto 0) :=  "00000000000000000000000000000000";

        constant ZERO16b        : STD_LOGIC_VECTOR(15 downto 0) :=  "0000000000000000";

        constant ONE32b         : STD_LOGIC_VECTOR(31 downto 0) :=  "11111111111111111111111111111111";

        constant ONE16b         : STD_LOGIC_VECTOR(15 downto 0) :=  "1111111111111111";

end SEGM_MIPS_CONST_PKG;