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module uvm;
class simple_item extends uvm_sequence_item;
rand int unsigned addr;
rand int unsigned data;
rand int unsigned delay;
constraint c1 { addr < 16'h2000; }
constraint c2 { data < 16'h1000; }
// UVM automation macros for general objects
`uvm_object_utils_begin(simple_item)
a = b;
c = d;
`uvm_field_int(addr, UVM_ALL_ON)
`uvm_field_int(data, UVM_ALL_ON)
`uvm_field_int(delay, UVM_ALL_ON)
`uvm_object_utils_end
// Constructor
function new (string name = "simple_item");
super.new(name);
endfunction : new
endclass : simple_item
class mydata extends uvm_object;
string str;
mydata subdata;
int field;
myenum e1;
int queue[$];
`uvm_object_utils(mydata)
`uvm_object_utils_begin(mydata) //requires ctor with default args
`uvm_field_string(str, UVM_DEFAULT)
`uvm_field_object(subdata, UVM_DEFAULT)
`uvm_field_int(field, UVM_DEC) //use decimal radix
`uvm_field_enum(myenum, e1, UVM_DEFAULT)
`uvm_field_queue_int(queue, UVM_DEFAULT)
`uvm_object_utils_end
`uvm_object_param_utils_begin(mydata) //requires ctor with default args
`uvm_field_string(str, UVM_DEFAULT)
`uvm_field_object(subdata, UVM_DEFAULT)
`uvm_field_int(field, UVM_DEC) //use decimal radix
`uvm_field_enum(myenum, e1, UVM_DEFAULT)
`uvm_field_queue_int(queue, UVM_DEFAULT)
`uvm_object_utils_end
endclass
class my_trans extends uvm_sequence_item;
rand bit [127:0] data [];
//---> Configuration
`uvm_object_utils_begin(my_trans)
`uvm_field_array_int ( data, UVM_ALL_ON)
`uvm_object_utils_end
function new (string name = "my_trans", uvm_sequencer_base sequencer = null, uvm_sequence parent_seq = null);
super.new(name, sequencer, parent_seq);
endfunction : new
endclass : my_trans
endmodule // uvm
module tt;
initial begin
while (1) begin
`uvm_do_with(aa, {bb == 0;})
`uvm_do(cc)
`uvm_do(cc)
end // while (1)
end // initial begin
endmodule // tt
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