head 1.1; access; symbols; locks; strict; comment @# @; 1.1 date 2007.02.26.00.09.00; author michland; state Exp; branches; next ; commitid 1c3045e2251b4567; desc @@ 1.1 log @Matrix 3x3 and Color Convertion projects were separated. Files were renamed. @ text @-- ***** BEGIN LICENSE BLOCK ***** ---------------------------------------------------------------------- ---- ---- ---- WISHBONE matrix 3x3 multiplier IP Core ---- ---- ---- ---- This file is part of the matrix 3x3 multiplier project ---- ---- http://www.opencores.org/projects.cgi/web/matrix3x3/ ---- ---- ---- ---- Description ---- ---- Matrix 3x3 multiplier with WISHBONE interface ---- ---- ---- ---- To Do: ---- ---- - ---- ---- ---- ---- Author(s): ---- ---- - Michael Tsvetkov, michland@@opencores.org ---- ---- - Vyacheslav Gulyaev, vv_gulyaev@@opencores.org ---- ---- ---- ---------------------------------------------------------------------- ---- ---- ---- Copyright (C) 2007 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.gnu.org/licenses/lgpl.txt or write to the ---- ---- Free Software Foundation, Inc., 51 Franklin Street, ---- ---- Fifth Floor, Boston, MA 02110-1301 USA ---- ---- ---- ---------------------------------------------------------------------- -- * ***** END LICENSE BLOCK ***** */ library IEEE; use IEEE.std_logic_1164.all; use IEEE.std_logic_arith.all; entity multiplier3x3_wb is generic( DATA_WIDTH : INTEGER:=16; F_FACTORS_PART : INTEGER:= 15; INT_FACTORS_PART: INTEGER:= 3 ); port ( -- Data Bus (piped stream, our own bus) - x input and y output x_clk : IN STD_LOGIC; x_rstn : IN STD_LOGIC; x_we_i : IN STD_LOGIC; y_rdy_o : OUT STD_LOGIC; -- input vector x1_i : IN UNSIGNED( data_width-1 downto 0 ); x2_i : IN UNSIGNED( data_width-1 downto 0 ); x3_i : IN UNSIGNED( data_width-1 downto 0 ); -- output vector y1c_o : OUT SIGNED( int_factors_part-1 downto 0 ); y2c_o : OUT SIGNED( int_factors_part-1 downto 0 ); y3c_o : OUT SIGNED( int_factors_part-1 downto 0 ); y1_o : OUT UNSIGNED( data_width-1 downto 0 ); y2_o : OUT UNSIGNED( data_width-1 downto 0 ); y3_o : OUT UNSIGNED( data_width-1 downto 0 ); -- Control Bus (WishBone Bus slave) - set factors and shifts regs for mult3x3 wb_clk_i : IN STD_LOGIC; wb_rst_i : IN STD_LOGIC; wb_stb_i : IN STD_LOGIC; wb_we_i : IN STD_LOGIC; wb_adr_i : IN STD_LOGIC_VECTOR (3 downto 0); wb_dat_i : IN STD_LOGIC_VECTOR (f_factors_part+int_factors_part-1 downto 0); wb_dat_o : OUT STD_LOGIC_VECTOR (f_factors_part+int_factors_part-1 downto 0) ); end multiplier3x3_wb; architecture a of multiplier3x3_wb is constant factors_width : integer := (f_factors_part + int_factors_part); -- one sign bit --matrix factors SIGNAL a11 : signed(factors_width-1 downto 0); SIGNAL a12 : signed(factors_width-1 downto 0); SIGNAL a13 : signed(factors_width-1 downto 0); SIGNAL a21 : signed(factors_width-1 downto 0); SIGNAL a22 : signed(factors_width-1 downto 0); SIGNAL a23 : signed(factors_width-1 downto 0); SIGNAL a31 : signed(factors_width-1 downto 0); SIGNAL a32 : signed(factors_width-1 downto 0); SIGNAL a33 : signed(factors_width-1 downto 0); --shift vectors SIGNAL b1x : signed(factors_width-1 downto 0); SIGNAL b2x : signed(factors_width-1 downto 0); SIGNAL b3x : signed(factors_width-1 downto 0); SIGNAL b1y : signed(factors_width-1 downto 0); SIGNAL b2y : signed(factors_width-1 downto 0); SIGNAL b3y : signed(factors_width-1 downto 0); COMPONENT multiplier3x3 generic( DATA_WIDTH : INTEGER:=8; F_FACTORS_PART : INTEGER:= 15; INT_FACTORS_PART: INTEGER:= 3 ); port ( clk : IN STD_LOGIC; rstn : IN STD_LOGIC; DATA_ENA : IN STD_LOGIC; DOUT_RDY : OUT STD_LOGIC; -- input vector x1 : IN UNSIGNED( data_width-1 downto 0 ); x2 : IN UNSIGNED( data_width-1 downto 0 ); x3 : IN UNSIGNED( data_width-1 downto 0 ); -- matrix factors a11,a12,a13 : IN SIGNED( factors_width-1 downto 0 ); a21,a22,a23 : IN SIGNED( factors_width-1 downto 0 ); a31,a32,a33 : IN SIGNED( factors_width-1 downto 0 ); --shift vectors b1x,b2x,b3x : IN SIGNED( factors_width-1 downto 0 ); b1y,b2y,b3y : IN SIGNED( factors_width-1 downto 0 ); -- output vector y1c : OUT SIGNED( int_factors_part-1 downto 0 ); y2c : OUT SIGNED( int_factors_part-1 downto 0 ); y3c : OUT SIGNED( int_factors_part-1 downto 0 ); y1 : OUT UNSIGNED( data_width-1 downto 0 ); y2 : OUT UNSIGNED( data_width-1 downto 0 ); y3 : OUT UNSIGNED( data_width-1 downto 0 ) ); END COMPONENT ; begin -- WB address decoder process(wb_clk_i, wb_rst_i) begin if wb_rst_i='1' then a11 <= (others=>'0'); a12 <= (others=>'0'); a13 <= (others=>'0'); a21 <= (others=>'0'); a22 <= (others=>'0'); a23 <= (others=>'0'); a31 <= (others=>'0'); a32 <= (others=>'0'); a33 <= (others=>'0'); b1x <= (others=>'0'); b2x <= (others=>'0'); b3x <= (others=>'0'); b1y <= (others=>'0'); b2y <= (others=>'0'); b3y <= (others=>'0'); elsif rising_edge(wb_clk_i) then if wb_stb_i='1' then if wb_we_i='1' then case wb_adr_i is when x"0" => a11 <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"1" => a12 <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"2" => a13 <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"3" => a21 <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"4" => a22 <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"5" => a23 <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"6" => a31 <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"7" => a32 <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"8" => a33 <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"9" => b1x <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"A" => b2x <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"B" => b3x <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"C" => b1y <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"D" => b2y <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"E" => b3y <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when others => null; end case; else case wb_adr_i is when x"0" => wb_dat_o <= STD_LOGIC_VECTOR(a11); when x"1" => wb_dat_o <= STD_LOGIC_VECTOR(a12); when x"2" => wb_dat_o <= STD_LOGIC_VECTOR(a13); when x"3" => wb_dat_o <= STD_LOGIC_VECTOR(a21); when x"4" => wb_dat_o <= STD_LOGIC_VECTOR(a22); when x"5" => wb_dat_o <= STD_LOGIC_VECTOR(a23); when x"6" => wb_dat_o <= STD_LOGIC_VECTOR(a31); when x"7" => wb_dat_o <= STD_LOGIC_VECTOR(a32); when x"8" => wb_dat_o <= STD_LOGIC_VECTOR(a33); when x"9" => wb_dat_o(factors_width-1 downto 0) <= STD_LOGIC_VECTOR(b1x); when x"A" => wb_dat_o(factors_width-1 downto 0) <= STD_LOGIC_VECTOR(b2x); when x"B" => wb_dat_o(factors_width-1 downto 0) <= STD_LOGIC_VECTOR(b3x); when x"C" => wb_dat_o(factors_width-1 downto 0) <= STD_LOGIC_VECTOR(b1y); when x"D" => wb_dat_o(factors_width-1 downto 0) <= STD_LOGIC_VECTOR(b2y); when x"E" => wb_dat_o(factors_width-1 downto 0) <= STD_LOGIC_VECTOR(b3y); when others => null; end case; end if; end if; end if; end process; mult:multiplier3x3 GENERIC MAP( DATA_WIDTH, F_FACTORS_PART, INT_FACTORS_PART ) PORT MAP (x_clk, x_rstn, x_we_i, y_rdy_o, x1_i, x2_i, x3_i, a11, a12, a13, a21, a22, a23, a31, a32, a33, b1x, b2x, b3x, b1y, b2y, b3y, y1c_o, y2c_o, y3c_o, y1_o, y2_o, y3_o ); end a; @