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-------------------------------------------------------------------------------
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-------------------------------------------------------------------------------
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--
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--
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-- The Decoder unit.
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-- The Decoder unit.
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-- It decodes the instruction opcodes and executes them.
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-- It decodes the instruction opcodes and executes them.
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--
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--
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-- $Id: decoder.vhd,v 1.24 2005-11-14 21:12:29 arniml Exp $
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-- $Id: decoder.vhd,v 1.25 2006-06-20 00:46:03 arniml Exp $
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--
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--
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-- Copyright (c) 2004, Arnim Laeuger (arniml@opencores.org)
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-- Copyright (c) 2004, Arnim Laeuger (arniml@opencores.org)
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--
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--
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-- All rights reserved
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-- All rights reserved
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--
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--
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-- Global Interface -------------------------------------------------------
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-- Global Interface -------------------------------------------------------
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clk_i : in std_logic;
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clk_i : in std_logic;
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res_i : in std_logic;
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res_i : in std_logic;
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en_clk_i : in boolean;
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en_clk_i : in boolean;
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xtal_i : in std_logic;
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xtal_i : in std_logic;
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xtal_en_i : in boolean;
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ea_i : in std_logic;
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ea_i : in std_logic;
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ale_i : in boolean;
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ale_i : in boolean;
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int_n_i : in std_logic;
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int_n_i : in std_logic;
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t0_dir_o : out std_logic;
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t0_dir_o : out std_logic;
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-- T48 Bus Interface ------------------------------------------------------
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-- T48 Bus Interface ------------------------------------------------------
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port map (
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port map (
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clk_i => clk_i,
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clk_i => clk_i,
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res_i => res_i,
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res_i => res_i,
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en_clk_i => en_clk_i,
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en_clk_i => en_clk_i,
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xtal_i => xtal_i,
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xtal_i => xtal_i,
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xtal_en_i => xtal_en_i,
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clk_mstate_i => clk_mstate_i,
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clk_mstate_i => clk_mstate_i,
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jtf_executed_i => jtf_executed_s,
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jtf_executed_i => jtf_executed_s,
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tim_overflow_i => tim_overflow_i,
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tim_overflow_i => tim_overflow_i,
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tf_o => tf_s,
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tf_o => tf_s,
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en_tcnti_i => en_tcnti_s,
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en_tcnti_i => en_tcnti_s,
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-------------------------------------------------------------------------------
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-------------------------------------------------------------------------------
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-- File History:
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-- File History:
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--
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--
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-- $Log: not supported by cvs2svn $
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-- $Log: not supported by cvs2svn $
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-- Revision 1.24 2005/11/14 21:12:29 arniml
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-- suppress p2_output_pch_o when MOVX operation is accessing the
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-- external memory
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--
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-- Revision 1.23 2005/11/07 19:25:01 arniml
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-- Revision 1.23 2005/11/07 19:25:01 arniml
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-- fix sensitivity list
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-- fix sensitivity list
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--
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--
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-- Revision 1.22 2005/11/01 21:25:37 arniml
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-- Revision 1.22 2005/11/01 21:25:37 arniml
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-- * suppress p2_output_pch_o when p2_output_exp is active
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-- * suppress p2_output_pch_o when p2_output_exp is active
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