Subversion Repositories fwrisc

/****************************************************************************

 * fwrisc_tb.sv

 ****************************************************************************/

/**

 * Module: fwrisc_fpga_tb_hdl

 *

 * TODO: Add module documentation

 */

module fwrisc_fpga_tb_hdl(input clock);

        wire                            led0, led1, clock_o;

        wire                            tx, d0_p, d0_n;

        reg                                     led0_r, led1_r;

        fwrisc_fpga_top u_dut (

                .clock  (clock ),

                .clk_o  (clock_o),

                .led0   (led0  ),

                .led1   (led1  ),

                .tx     (tx    ),

                .d0_p   (d0_p ),

                .d0_n   (d0_n ));

        import "DPI-C" context function void fwrisc_fpga_tb_led(

                        byte unsigned           led0,

                        byte unsigned           led1);

        always @(posedge clock) begin

                if (led0 != led0_r || led1 != led1_r) begin

                        $display("--> led(%0d %0d)", led0, led1);

                        fwrisc_fpga_tb_led(led0, led1);

                        led0_r <= led0;

                        led1_r <= led1;

                        $display("<-- led(%0d %0d)", led0, led1);

                end

        end

        bind fwrisc_tracer fwrisc_tracer_bfm u_tracer(

                        .clock(clock),

                        .reset(reset),

                        .addr(addr),

                        .instr(instr),

                        .ivalid(ivalid),

                        .raddr(raddr),

                        .rdata(rdata),

                        .rwrite(rwrite),

                        .maddr(maddr),

                        .mdata(mdata),

                        .mstrb(mstrb),

                        .mwrite(mwrite),

                        .mvalid(mvalid)

                );

endmodule