uvm_scoreboard

http://www.eetop.cn/blog/index.php?uid/13812/action/viewspace/itemid/6826765/php/1

uvm_in_order_comparator #(T,comp_type,convert,pair_type)

 

two derived comparator:

“uvm_in_order_build_in_comparator”: comparing streams of built-in types

“uvm_in_order_class_comparator”: comparing streams of class objects

 

“uvm_algorithmic_comparator": Compares two streams of data objects of different types, BEFORE and AFTER

 

 基本代码：

class xcoreboard extends uvm_scoreboard;

    typedef uvm_in_order_class_comparator#(packet) cmpr_t;

    cmpr_t cmpr;

    uvm_analysis_export#(packet) before_export;

    uvm_analysis_export#(packet) after_export;

    

    virtual function viod build_phase(uvm_phase phase);

          super.build_phase(phase);

          cmpr = cmpr_t::type_id::create("cmpr", this);

          before_export = new("before_export", this);

          after_export = new("after_export", this);

    endfunction: build_phase

 

    virtual function void connect_phase (uvm_hase phase);

        before_export.connect(cmpr.before_export);

        after_export.connect(cmpr.after_export);

     endfunction: connect_phase

endclass

 

class iMonitor extends uvm_monitor;

    ...

    uvm_analysis_port#(packet) analysis_port;

    ..

 

    virtual task main_phase(uvm_phase phase);

        ...

        tr = packet::type_id::create("tr");

        ...

        analysis_port.write(tr);

    endfunction: main_phase