// Base sequence class for testbench sequences
class tb_seq_base extends uvm_sequence;
    `uvm_object_utils(tb_seq_base)

    // Constructor
    function new(string name = "tb_seq_base");
        super.new(name);
    endfunction
endclass : tb_seq_base

// ----------------------------------------------------------------------
class axi_m_seq_base extends tb_seq_base;
    tb_env env;

    `uvm_object_utils(axi_m_seq_base)

    // Constructor
    function new(string name = "axi_m_seq_base");
        super.new(name);
    endfunction

    // Task to start the sequence
    virtual task body();
        bit ok = uvm_config_db#(tb_env)::get(uvm_root::get(), "*", "env", env);
    endtask
endclass : axi_m_seq_base

// ----------------------------------------------------------------------
class axi_simple_seq extends axi_m_seq_base;
    `uvm_object_utils(axi_simple_seq)

    // Constructor
    function new(string name = "axi_simple_seq");
        super.new(name);
    endfunction

    // Task to start the sequence
    virtual task body();
        axi_transaction txn;

        super.body();

        `uvm_info("axi_simple_seq", "Starting simple AXI sequence", UVM_LOW)

        `uvm_do(txn, env.get_axi_m_sequencer(), -1, {
            addr == 32'h0000_0000; // Example address
            data == 32'hDEAD_BEEF; // Example data
            strb == 'hf; // Example byte enable
        });
    endtask
endclass : axi_simple_seq