-------------------------------------------------------------------------------
--  th9958_config.vhd
--  configration for TH9958
--
--  Copyright (C) 2008 Takayuki Hara
--  All rights reserved.
-------------------------------------------------------------------------------
--
--  Redistribution and use of this software or any derivative works,
--  are permitted provided that the following conditions are met:
--
--  1. Redistributions of source code must retain the above copyright
--     notice, this list of conditions and the following disclaimer.
--  2. Redistributions in binary form must reproduce the above
--     copyright notice, this list of conditions and the following
--     disclaimer in the documentation and/or other materials
--     provided with the distribution.
--  3. Redistributions may not be sold, nor may they be used in a 
--     commercial product or activity without specific prior written
--     permission.
--
--  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
--  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
--  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
--  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
--  COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
--  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
--  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
--  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
--  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
--  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
--  ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
--  POSSIBILITY OF SUCH DAMAGE.
--
-------------------------------------------------------------------------------

LIBRARY IEEE;
	USE IEEE.STD_LOGIC_1164.ALL;
	USE IEEE.STD_LOGIC_UNSIGNED.ALL;

PACKAGE TH9958_CONFIG IS
	-- BASIC SETTING
	CONSTANT C_H_SIZE			: INTEGER := 1368;
	CONSTANT C_HD_END			: INTEGER := 82;

	-- DISPLAY POSITION
	CONSTANT C_BACK_WIDTH		: INTEGER := 60;
	CONSTANT C_FRONT_WIDTH		: INTEGER := 40;
	CONSTANT C_ACTIVE_WIDTH		: INTEGER := 1024;
	CONSTANT C_VISIBLE_SX		: INTEGER := 240;
	CONSTANT C_VISIBLE_EX		: INTEGER := C_VISIBLE_SX + C_BACK_WIDTH + C_ACTIVE_WIDTH + C_FRONT_WIDTH;

	-- VGS SYNC
	CONSTANT C_HS_SX			: INTEGER := 0;
	CONSTANT C_HS_EX			: INTEGER := 81;

	-- INTERRUPT
	CONSTANT C_VERT_INT_LINE	: INTEGER := 192;
END TH9958_CONFIG;