module tb;
    logic [31:0] pc, rs1, target, link;
    logic signed [31:0] immediate;
    logic jalr;
    string trace_file;
    link_address dut (.*);
    initial begin
        if ($value$plusargs("trace=%s", trace_file)) begin $dumpfile(trace_file); $dumpvars(0, tb); end
        pc=32'h100; rs1=0; immediate=24; jalr=0; #1;
        if (target !== 32'h118 || link !== 32'h104) $fatal(1, "FAIL jal target=%h link=%h", target, link);
        rs1=32'h205; immediate=-4; jalr=1; #1;
        if (target !== 32'h200 || link !== 32'h104) $fatal(1, "FAIL jalr target=%h link=%h", target, link);
        $display("PASS task01 jal_target=00000118 link=00000104 jalr_target=00000200");
        $finish;
    end
endmodule