UVM Commands

🧪 UVM Commands – Base Classes

Topic	Question	Answer
UVM	Include UVM	`include "uvm_macros.svh"
UVM	Import UVM	import uvm_pkg::*;
UVM	UVM object	class name extends uvm_object;
UVM	UVM component	class name extends uvm_component;
UVM	UVM test	class name extends uvm_test;
UVM	UVM env	class name extends uvm_env;
UVM	UVM agent	class name extends uvm_agent;
UVM	UVM driver	class name extends uvm_driver#(trans_type);
UVM	UVM monitor	class name extends uvm_monitor;
UVM	UVM sequencer	class name extends uvm_sequencer#(trans_type);
UVM	UVM sequence	class name extends uvm_sequence#(trans_type);
UVM	UVM sequence item	class name extends uvm_sequence_item;
UVM	UVM scoreboard	class name extends uvm_scoreboard;
UVM	UVM subscriber	class name extends uvm_subscriber#(trans_type);

🧪 UVM Commands – Factory & Macros

Topic	Question	Answer
UVM	Register component	`uvm_component_utils(class_name)
UVM	Register object	`uvm_object_utils(class_name)
UVM	Utils begin	`uvm_component_utils_begin(name)
UVM	Utils end	`uvm_component_utils_end
UVM	Field int	`uvm_field_int(field_name, UVM_ALL_ON)
UVM	Field object	`uvm_field_object(field_name, UVM_ALL_ON)
UVM	Field string	`uvm_field_string(field_name, UVM_ALL_ON)
UVM	Field enum	`uvm_field_enum(type, field_name, UVM_ALL_ON)
UVM	Field array int	`uvm_field_array_int(field_name, UVM_ALL_ON)
UVM	Field sarray int	`uvm_field_sarray_int(field_name, UVM_ALL_ON)
UVM	Field queue int	`uvm_field_queue_int(field_name, UVM_ALL_ON)
UVM	Field aa int string	`uvm_field_aa_int_string(field_name, UVM_ALL_ON)
UVM	Component param utils	`uvm_component_param_utils(class_name#(T))
UVM	Object param utils	`uvm_object_param_utils(class_name#(T))

🧪 UVM Commands – Constructor & Phases

Topic	Question	Answer
UVM	Component constructor	function new(string name, uvm_component parent); super.new(name, parent); endfunction
UVM	Object constructor	function new(string name=""); super.new(name); endfunction
UVM	Build phase	function void build_phase(uvm_phase phase); super.build_phase(phase); endfunction
UVM	Connect phase	function void connect_phase(uvm_phase phase); super.connect_phase(phase); endfunction
UVM	End of elaboration	function void end_of_elaboration_phase(uvm_phase phase);
UVM	Start of simulation	function void start_of_simulation_phase(uvm_phase phase);
UVM	Run phase	task run_phase(uvm_phase phase); endtask
UVM	Pre-reset phase	task pre_reset_phase(uvm_phase phase); endtask
UVM	Reset phase	task reset_phase(uvm_phase phase); endtask
UVM	Post-reset phase	task post_reset_phase(uvm_phase phase); endtask
UVM	Pre-configure phase	task pre_configure_phase(uvm_phase phase); endtask
UVM	Configure phase	task configure_phase(uvm_phase phase); endtask
UVM	Post-configure phase	task post_configure_phase(uvm_phase phase); endtask
UVM	Pre-main phase	task pre_main_phase(uvm_phase phase); endtask
UVM	Main phase	task main_phase(uvm_phase phase); endtask
UVM	Post-main phase	task post_main_phase(uvm_phase phase); endtask
UVM	Pre-shutdown phase	task pre_shutdown_phase(uvm_phase phase); endtask
UVM	Shutdown phase	task shutdown_phase(uvm_phase phase); endtask
UVM	Post-shutdown phase	task post_shutdown_phase(uvm_phase phase); endtask
UVM	Extract phase	function void extract_phase(uvm_phase phase);
UVM	Check phase	function void check_phase(uvm_phase phase);
UVM	Report phase	function void report_phase(uvm_phase phase);
UVM	Final phase	function void final_phase(uvm_phase phase);

🧪 UVM Commands – Factory & Creation

Topic	Question	Answer
UVM	Create object	obj = class_name::type_id::create("obj_name");
UVM	Create component	comp = class_name::type_id::create("name", this);
UVM	Set type override	class_name::type_id::set_type_override(override_type::get_type());
UVM	Set inst override	set_inst_override_by_type("inst_name", orig_type::get_type(), override_type::get_type());
UVM	Set override by name	set_type_override_by_name("original", "override");
UVM	Factory print	factory.print();

🧪 UVM Commands – Configuration & Resources

Topic	Question	Answer
UVM	Config DB set	uvm_config_db#(int)::set(this, "*", "field", value);
UVM	Config DB get	if (!uvm_config_db#(int)::get(this, "", "field", value))
UVM	Config DB set object	uvm_config_db#(obj_type)::set(this, "path", "field", obj);
UVM	Config DB virtual if	uvm_config_db#(virtual interface_type)::set(null, "*", "vif", vif);
UVM	Resource DB set	uvm_resource_db#(int)::set("scope", "name", value);
UVM	Resource DB get	uvm_resource_db#(int)::read_by_name("scope", "name", value);
UVM	Set config int	set_config_int("*", "field", value);
UVM	Set config object	set_config_object("*", "field", obj);

🧪 UVM Commands – Sequences & Sequencer

Topic	Question	Answer
UVM	Body task	task body(); endtask
UVM	Start sequence	seq.start(sequencer);
UVM	Start on sequencer	seq_name.start(m_sequencer);
UVM	Create sequence item	req = trans_type::type_id::create("req");
UVM	Start item	start_item(req);
UVM	Finish item	finish_item(req);
UVM	Wait for grant	wait_for_grant();
UVM	Send request	send_request(req);
UVM	Wait for item done	wait_for_item_done();
UVM	Get response	get_response(rsp);
UVM	Get next item	seq_item_port.get_next_item(req);
UVM	Item done	seq_item_port.item_done();
UVM	Item done with response	seq_item_port.item_done(rsp);
UVM	Put response	seq_item_port.put_response(rsp);
UVM	Peek request	seq_item_port.peek(req);
UVM	Grab sequencer	grab();
UVM	Ungrab sequencer	ungrab();
UVM	Is grabbed	if (is_grabbed())
UVM	Lock sequencer	lock(sequencer);
UVM	Unlock sequencer	unlock(sequencer);

🧪 UVM Commands – Objections & Phasing

Topic	Question	Answer
UVM	Raise objection	phase.raise_objection(this);
UVM	Drop objection	phase.drop_objection(this);
UVM	Raise with count	phase.raise_objection(this, "description", count);
UVM	Drop with count	phase.drop_objection(this, "description", count);
UVM	Set drain time	phase.phase_done.set_drain_time(this, 100ns);
UVM	Get objection	uvm_objection obj = phase.get_objection();
UVM	All dropped	obj.all_dropped(...);

🧪 UVM Commands – TLM Ports & Exports

Topic	Question	Answer
UVM	Analysis port	uvm_analysis_port#(trans_type) ap;
UVM	Analysis export	uvm_analysis_export#(trans_type) ae;
UVM	Analysis imp	uvm_analysis_imp#(trans_type, class_type) ai;
UVM	Write implementation	function void write(trans_type t); endfunction
UVM	Blocking put port	uvm_blocking_put_port#(trans_type) put_port;
UVM	Blocking get port	uvm_blocking_get_port#(trans_type) get_port;
UVM	Nonblocking put port	uvm_nonblocking_put_port#(trans_type) put_port;
UVM	Nonblocking get port	uvm_nonblocking_get_port#(trans_type) get_port;
UVM	Put export	uvm_put_export#(trans_type) put_export;
UVM	Get export	uvm_get_export#(trans_type) get_export;
UVM	TLM FIFO	uvm_tlm_fifo#(trans_type) fifo;
UVM	Port connect	port.connect(export);
UVM	Analysis write	ap.write(transaction);
UVM	Blocking put	put_port.put(item);
UVM	Blocking get	get_port.get(item);
UVM	Try put	if (put_port.try_put(item))
UVM	Try get	if (get_port.try_get(item))
UVM	Can put	if (put_port.can_put())
UVM	Can get	if (get_port.can_get())

🧪 UVM Commands – Reporting & Messages

Topic	Question	Answer
UVM	Info message	`uvm_info("TAG", "Message", UVM_LOW)
UVM	Warning message	`uvm_warning("TAG", "Warning message")
UVM	Error message	`uvm_error("TAG", "Error message")
UVM	Fatal message	`uvm_fatal("TAG", "Fatal error")
UVM	Info with verbosity	`uvm_info("TAG", $sformatf("Value=%0d", val), UVM_MEDIUM)
UVM	Set verbosity	set_report_verbosity_level(UVM_HIGH);
UVM	Set hier verbosity	uvm_top.set_report_verbosity_level_hier(UVM_HIGH);
UVM	Set severity action	set_report_severity_action(UVM_ERROR, UVM_DISPLAY | UVM_LOG);
UVM	Set id action	set_report_id_action("TAG", UVM_DISPLAY);
UVM	Set max quit count	set_report_max_quit_count(10);
UVM	Report handler	uvm_report_handler handler = get_report_handler();

🧪 UVM Commands – Utilities & Misc

Topic	Question	Answer
UVM	Run test	run_test("test_name");
UVM	Run test default	run_test(); (uses +UVM_TESTNAME)
UVM	Print topology	uvm_top.print_topology();
UVM	Set timeout	uvm_top.set_timeout(1000ns);
UVM	Global timeout	uvm_top.set_timeout(1ms, 0);
UVM	Get parent	parent = get_parent();
UVM	Get full name	name = get_full_name();
UVM	Get type name	type_name = get_type_name();
UVM	Get name	name = get_name();
UVM	Print object	obj.print();
UVM	Sprint object	string s = obj.sprint();
UVM	Copy object	dest.copy(src);
UVM	Compare objects	if (obj1.compare(obj2))
UVM	Clone object	obj2 = obj1.clone();
UVM	Pack	obj.pack(packer);
UVM	Unpack	obj.unpack(packer);
UVM	Record	obj.record(recorder);
UVM	Do pack	function void do_pack(uvm_packer packer);
UVM	Do unpack	function void do_unpack(uvm_packer packer);
UVM	Do copy	function void do_copy(uvm_object rhs);
UVM	Do compare	function bit do_compare(uvm_object rhs, uvm_comparer comparer);
UVM	Do print	function void do_print(uvm_printer printer);
UVM	Convert2string	function string convert2string();
UVM	Callbacks add	uvm_callbacks#(T, CB)::add(obj, cb);
UVM	Callbacks delete	uvm_callbacks#(T, CB)::delete(obj, cb);
UVM	Event pool	uvm_event_pool pool = uvm_event_pool::get_global_pool();
UVM	Barrier	uvm_barrier barrier = new("barrier", 3);
UVM	Wait for barrier	barrier.wait_for();
UVM	Heartbeat	uvm_heartbeat hb;
UVM	Register model	class name extends uvm_reg_block;
UVM	Register	class name extends uvm_reg;
UVM	Register field	rand uvm_reg_field field_name;