一個使用UVM的最簡單Class

From Cadence

`include "uvm_pkg.sv"
`include "uvm_macros.svh"
import uvm_pkg::*;
//------------------------------------------------------------------------------
// CLASS: apb_transfer
//------------------------------------------------------------------------------
typedef enum bit {APB_READ, APB_WRITE} apb_direction_enum;
class apb_transfer extends uvm_sequence_item;

rand bit [31:0] addr;
rand bit [31:0] data;
rand apb_direction_enum direction;
// Control field - does not translate into signal data
rand int unsigned transmit_delay;

// UVM automation macros for data items
`uvm_object_utils_begin(apb_transfer)
`uvm_field_int(addr, UVM_DEFAULT)
`uvm_field_int(data, UVM_DEFAULT)
`uvm_field_enum(apb_direction_enum, direction, UVM_DEFAULT)
`uvm_field_int(transmit_delay, UVM_DEFAULT | UVM_NOCOMPARE)
`uvm_object_utils_end

// Constructor - required UVM syntax
function new (string name = "apb_transfer");
super.new(name);
endfunction

endclass : apb_transfer

module test;

apb_transfer transfer;

initial begin
transfer = new();
repeat (3) begin
void'(transfer.randomize());
transfer.print();
end
end

endmodule : test