URL
https://opencores.org/ocsvn/dbg_interface/dbg_interface/trunk
Subversion Repositories dbg_interface
[/] [dbg_interface/] [tags/] [rel_13/] [bench/] [verilog/] [cpu_behavioral.v] - Rev 102
Go to most recent revision | Compare with Previous | Blame | View Log
////////////////////////////////////////////////////////////////////// //// //// //// cpu_behavioral.v //// //// //// //// //// //// This file is part of the SoC/OpenRISC Development Interface //// //// http://www.opencores.org/projects/DebugInterface/ //// //// //// //// Author(s): //// //// Igor Mohor (igorm@opencores.org) //// //// //// //// //// //// All additional information is avaliable in the README.txt //// //// file. //// //// //// ////////////////////////////////////////////////////////////////////// //// //// //// Copyright (C) 2000 - 2004 Authors //// //// //// //// 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.opencores.org/lgpl.shtml //// //// //// ////////////////////////////////////////////////////////////////////// // // CVS Revision History // // $Log: not supported by cvs2svn $ // Revision 1.1 2004/01/17 17:01:25 mohor // Almost finished. // // // // // `include "timescale.v" `include "dbg_cpu_defines.v" module cpu_behavioral ( // CPU signals cpu_rst_i, cpu_clk_o, cpu_addr_i, cpu_data_o, cpu_data_i, cpu_bp_o, cpu_stall_i, cpu_stall_all_i, cpu_stb_i, cpu_sel_i, cpu_we_i, cpu_ack_o, cpu_rst_o ); // CPU signals input cpu_rst_i; output cpu_clk_o; input [31:0] cpu_addr_i; output [31:0] cpu_data_o; input [31:0] cpu_data_i; output cpu_bp_o; input cpu_stall_i; input cpu_stall_all_i; input cpu_stb_i; input [`CPU_NUM -1:0] cpu_sel_i; input cpu_we_i; output cpu_ack_o; output cpu_rst_o; reg cpu_clk_o; reg [31:0] cpu_data_o; initial begin cpu_clk_o = 1'b0; forever #5 cpu_clk_o = ~cpu_clk_o; end assign cpu_bp_o = 1'b0; assign #200 cpu_ack_o = cpu_stall_i & cpu_stb_i; always @ (posedge cpu_clk_o or posedge cpu_rst_i) begin if (cpu_rst_i) cpu_data_o <= #1 32'h11111111; else if ((cpu_addr_i == 32'h32323232) & cpu_we_i & cpu_ack_o) cpu_data_o <= #1 cpu_data_i + 1'd1; else if ((cpu_addr_i == 32'h08080808) & cpu_we_i & cpu_ack_o) cpu_data_o <= #1 cpu_data_i + 2'd2; end endmodule
Go to most recent revision | Compare with Previous | Blame | View Log