mux.vhd

光栅尺的四细分和辩向电路

-- megafunction wizard: %LPM_MUX%
-- GENERATION: STANDARD
-- VERSION: WM1.0
-- MODULE: lpm_mux 

-- ============================================================
-- File Name: Mux.vhd
-- Megafunction Name(s):
-- 			lpm_mux
-- ============================================================
-- ************************************************************
-- THIS IS A WIZARD-GENERATED FILE. DO NOT EDIT THIS FILE!
--
-- 5.0 Build 148 04/26/2005 SJ Full Version
-- ************************************************************


--Copyright (C) 1991-2005 Altera Corporation
--Your use of Altera Corporation's design tools, logic functions 
--and other software and tools, and its AMPP partner logic       
--functions, and any output files any of the foregoing           
--(including device programming or simulation files), and any    
--associated documentation or information are expressly subject  
--to the terms and conditions of the Altera Program License      
--Subscription Agreement, Altera MegaCore Function License       
--Agreement, or other applicable license agreement, including,   
--without limitation, that your use is for the sole purpose of   
--programming logic devices manufactured by Altera and sold by   
--Altera or its authorized distributors.  Please refer to the    
--applicable agreement for further details.


LIBRARY ieee;
USE ieee.std_logic_1164.all;

LIBRARY lpm;
USE lpm.lpm_components.all;

ENTITY Mux IS
	PORT
	(
		data3x		: IN STD_LOGIC_VECTOR (7 DOWNTO 0);
		data2x		: IN STD_LOGIC_VECTOR (7 DOWNTO 0);
		data1x		: IN STD_LOGIC_VECTOR (7 DOWNTO 0);
		data0x		: IN STD_LOGIC_VECTOR (7 DOWNTO 0);
		sel		: IN STD_LOGIC_VECTOR (1 DOWNTO 0);
		result		: OUT STD_LOGIC_VECTOR (7 DOWNTO 0)
	);
END Mux;


ARCHITECTURE SYN OF mux IS

--	type STD_LOGIC_2D is array (NATURAL RANGE <>, NATURAL RANGE <>) of STD_LOGIC;

	SIGNAL sub_wire0	: STD_LOGIC_VECTOR (7 DOWNTO 0);
	SIGNAL sub_wire1	: STD_LOGIC_VECTOR (7 DOWNTO 0);
	SIGNAL sub_wire2	: STD_LOGIC_2D (3 DOWNTO 0, 7 DOWNTO 0);
	SIGNAL sub_wire3	: STD_LOGIC_VECTOR (7 DOWNTO 0);
	SIGNAL sub_wire4	: STD_LOGIC_VECTOR (7 DOWNTO 0);
	SIGNAL sub_wire5	: STD_LOGIC_VECTOR (7 DOWNTO 0);



	COMPONENT lpm_mux
	GENERIC (
		lpm_size		: NATURAL;
		lpm_widths		: NATURAL;
		lpm_width		: NATURAL;
		lpm_type		: STRING
	);
	PORT (
			sel	: IN STD_LOGIC_VECTOR (1 DOWNTO 0);
			data	: IN STD_LOGIC_2D (3 DOWNTO 0, 7 DOWNTO 0);
			result	: OUT STD_LOGIC_VECTOR (7 DOWNTO 0)
	);
	END COMPONENT;

BEGIN
	sub_wire5    <= data0x(7 DOWNTO 0);
	sub_wire4    <= data1x(7 DOWNTO 0);
	sub_wire3    <= data2x(7 DOWNTO 0);
	result    <= sub_wire0(7 DOWNTO 0);
	sub_wire1    <= data3x(7 DOWNTO 0);
	sub_wire2(3, 0)    <= sub_wire1(0);
	sub_wire2(3, 1)    <= sub_wire1(1);
	sub_wire2(3, 2)    <= sub_wire1(2);
	sub_wire2(3, 3)    <= sub_wire1(3);
	sub_wire2(3, 4)    <= sub_wire1(4);
	sub_wire2(3, 5)    <= sub_wire1(5);
	sub_wire2(3, 6)    <= sub_wire1(6);
	sub_wire2(3, 7)    <= sub_wire1(7);
	sub_wire2(2, 0)    <= sub_wire3(0);
	sub_wire2(2, 1)    <= sub_wire3(1);
	sub_wire2(2, 2)    <= sub_wire3(2);
	sub_wire2(2, 3)    <= sub_wire3(3);
	sub_wire2(2, 4)    <= sub_wire3(4);
	sub_wire2(2, 5)    <= sub_wire3(5);
	sub_wire2(2, 6)    <= sub_wire3(6);
	sub_wire2(2, 7)    <= sub_wire3(7);
	sub_wire2(1, 0)    <= sub_wire4(0);
	sub_wire2(1, 1)    <= sub_wire4(1);
	sub_wire2(1, 2)    <= sub_wire4(2);
	sub_wire2(1, 3)    <= sub_wire4(3);
	sub_wire2(1, 4)    <= sub_wire4(4);
	sub_wire2(1, 5)    <= sub_wire4(5);
	sub_wire2(1, 6)    <= sub_wire4(6);
	sub_wire2(1, 7)    <= sub_wire4(7);
	sub_wire2(0, 0)    <= sub_wire5(0);
	sub_wire2(0, 1)    <= sub_wire5(1);
	sub_wire2(0, 2)    <= sub_wire5(2);
	sub_wire2(0, 3)    <= sub_wire5(3);
	sub_wire2(0, 4)    <= sub_wire5(4);
	sub_wire2(0, 5)    <= sub_wire5(5);
	sub_wire2(0, 6)    <= sub_wire5(6);
	sub_wire2(0, 7)    <= sub_wire5(7);

	lpm_mux_component : lpm_mux
	GENERIC MAP (
		lpm_size => 4,
		lpm_widths => 2,
		lpm_width => 8,
		lpm_type => "LPM_MUX"
	)
	PORT MAP (
		sel => sel,
		data => sub_wire2,
		result => sub_wire0
	);



END SYN;

-- ============================================================
-- CNX file retrieval info
-- ============================================================
-- Retrieval info: CONSTANT: LPM_SIZE NUMERIC "4"
-- Retrieval info: CONSTANT: LPM_WIDTHS NUMERIC "2"
-- Retrieval info: CONSTANT: LPM_WIDTH NUMERIC "8"
-- Retrieval info: CONSTANT: LPM_TYPE STRING "LPM_MUX"
-- Retrieval info: USED_PORT: result 0 0 8 0 OUTPUT NODEFVAL result[7..0]
-- Retrieval info: USED_PORT: data3x 0 0 8 0 INPUT NODEFVAL data3x[7..0]
-- Retrieval info: USED_PORT: data2x 0 0 8 0 INPUT NODEFVAL data2x[7..0]
-- Retrieval info: USED_PORT: data1x 0 0 8 0 INPUT NODEFVAL data1x[7..0]
-- Retrieval info: USED_PORT: data0x 0 0 8 0 INPUT NODEFVAL data0x[7..0]
-- Retrieval info: USED_PORT: sel 0 0 2 0 INPUT NODEFVAL sel[1..0]
-- Retrieval info: CONNECT: result 0 0 8 0 @result 0 0 8 0
-- Retrieval info: CONNECT: @data 1 3 8 0 data3x 0 0 8 0
-- Retrieval info: CONNECT: @data 1 2 8 0 data2x 0 0 8 0
-- Retrieval info: CONNECT: @data 1 1 8 0 data1x 0 0 8 0
-- Retrieval info: CONNECT: @data 1 0 8 0 data0x 0 0 8 0
-- Retrieval info: CONNECT: @sel 0 0 2 0 sel 0 0 2 0
-- Retrieval info: LIBRARY: lpm lpm.lpm_components.all
-- Retrieval info: GEN_FILE: TYPE_NORMAL Mux.vhd TRUE
-- Retrieval info: GEN_FILE: TYPE_NORMAL Mux.inc FALSE
-- Retrieval info: GEN_FILE: TYPE_NORMAL Mux.cmp TRUE
-- Retrieval info: GEN_FILE: TYPE_NORMAL Mux.bsf TRUE FALSE
-- Retrieval info: GEN_FILE: TYPE_NORMAL Mux_inst.vhd FALSE