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