/* * hub75_linebuffer.v * * vim: ts=4 sw=4 * * Copyright (C) 2019 Sylvain Munaut * All rights reserved. * * LGPL v3+, see LICENSE.lgpl3 * * This program 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 3 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ `default_nettype none module hub75_linebuffer #( parameter N_WORDS = 1, parameter WORD_WIDTH = 24, parameter ADDR_WIDTH = 6 )( input wire [ADDR_WIDTH-1:0] wr_addr, input wire [(N_WORDS*WORD_WIDTH)-1:0] wr_data, input wire [N_WORDS-1:0] wr_mask, input wire wr_ena, input wire [ADDR_WIDTH-1:0] rd_addr, output reg [(N_WORDS*WORD_WIDTH)-1:0] rd_data, input wire rd_ena, input wire clk ); integer i; reg [(N_WORDS*WORD_WIDTH)-1:0] ram [(1<