What is the use of $Sformatf in UVM?

2 Answers. From the LRM: The system function $sformatf behaves like $sformat except that the string result is passed back as the function result value for $sformatf , not placed in the first argument as for $sformat . Thus $sformatf can be used where a string value would be valid.

What is System Verilog verification?

SystemVerilog is an extension of Verilog with many such verification features that allow engineers to verify the design using complex testbench structures and random stimuli in simulation.

What is $Sformatf?

151 posts. April 02, 2010 at 5:23 am. Hi, $sformat() update the string with value which you have passed to it.

What is Sprintf in UVM?

Using sprint UVM objects have another function called sprint that returns the formatted contents in a string format. It is a substitute of the print function and can be used as shown in the example below.

What is M_sequencer and P_sequencer in UVM?

m_sequencer is the generic uvm_sequencer pointer. it will always exist for the uvm_sequence and is initialized when the sequence is started. p_sequencer is a typed-specific sequencer pointer, created by registering the sequence to the sequencer using macros.

What is UVM testbench?

All verification components, interfaces and DUT are instantiated in a top level module called testbench. It is a static container to hold everything required to be simulated and becomes the root node in the hierarchy. This is usually named tb or tb_top although it can assume any other name.

Where is SystemVerilog used?

SystemVerilog is based on Verilog and some extensions, and since 2008 Verilog is now part of the same IEEE standard. It is commonly used in the semiconductor and electronic design industry as an evolution of Verilog.

What is UVM verbosity?

The default Verbosity is UVM_MEDIUM. There are different Verbosity level being supported by UVM. These are UVM_NONE, UVM_LOW, UVM_MEDIUM (Default), UVM_HIGH, UVM_FULL, UVM_DEBUG. In case of default Verbosity level i.e. UVM_MEDIUM, any messages with UVM_HIGH or above are filtered out.

How do you write a sequence in UVM?

How to write uvm sequence

sequence base class. request/req: response/rsp:
Sequence Execution. body Method: m_sequencer Handle: Starting The Sequence:
Writing UVM Sequence.
UVM Sequence macros. Writing the sequence using Macro’s. `uvm_do()
difference between m_sequencer and p_sequencer: m_sequencer, p_sequencer,

What is p_sequencer and m_sequencer?

m_sequencer is the default handle for uvm_vitual_sequencer and p_sequencer is the hook up for child sequencer. it will always exist for the uvm_sequence and is initialized when the sequence is started. p_sequencer is a typed-specific sequencer pointer, created by registering the sequence to the sequencer using macros.

What is the difference between $Sformat() and psprintf() in Verilog?

$sformat () put the formatted string in verilog reg or string. The psprintf function is equivalent to sprintf. not much difference. $sformat () put the formatted string in verilog reg or string. The psprintf function is equivalent to sprintf. not much difference.

What is a SystemVerilog string?

What is a SystemVerilog string? The string data-type is an ordered collection of characters. The length of a string variable is the number of characters in the collection which can have dynamic length and vary during the course of a simulation. A string variable does not represent a string in the same way as a string literal.

What does $psprintf do?

$psprintf is a function that returns the “string”. This was an SV extension added by VCS (has origin in Vera) and recently added by Questa as well. Not open for further replies.

How many references to $psprintf in OVM?

There are many references to $psprintf on this forum and two references in the OVM Reference Guide, even though the SystemVerilog committee rejected the standardization of $psprintf since the language already had $sformatf. A quick search shows that both are used two times each in the reference guide.