# What are the basic syntax used in operators in Verilog?

## What are the basic syntax used in operators in Verilog?

Operators

Verilog Operator Name Functional Group
* / % multiply divide modulus arithmetic arithmetic arithmetic
+ – binary plus binary minus arithmetic arithmetic
<< >> shift left shift right shift shift
> >= < <= greater than greater than or equal to less than less than or equal to relational relational relational relational

What is Trireg?

trireg ‘s are used to model capaci- tive networks. A wand net or triand net operates as a wired and(wand), and a wor net or trior net operates as a wired or (wor), tri0 and tri1 nets model nets with resistive pulldown or pullup devices on them. When a tri0 net is not driven, then its value is 0.

### What is data type in Verilog?

In Verilog, data types are divided into NETS and Registers. These data types differ in the way that they are assigned and hold values, and also they represent different hardware structures. The Verilog HDL value set consists of four basic values: Value. Description.

What is a && B in Verilog?

a && b. evaluates to true if a and b are true. a || b. evaluates to true if a or b are true.

## What is == in Verilog?

In Verilog: == tests logical equality (tests for 1 and 0, all other will result in x) === tests 4-state logical equality (tests for 1, 0, z and x)

What is tri1 in Verilog?

SystemVerilog added uwire to represent a net allowing only one driver. When a net has no drivers, or all driving Z, a tri1 net will get pulled to the 1 state.

### What is tri0 in Verilog?

The tri net type can be used where multiple drivers drive a net. Similarly wand and triand are wired AND and multiple driver AND respectively. Logical AND of all the signals assigned to a wand type of signal will be the effective value of it. tri0 and tri1 will be pulled down or pulled up when not driven.

How do I start Verilog?

1. Introduction.
2. Data Types.
3. Building Blocks. Verilog assign statements. Verilog assign examples. Verilog always block. Combo Logic with always. Sequential Logic with always. Verilog initial block.
4. Behavioral modeling. Verilog for Loop. Verilog case Statement.
5. Gate/Switch modeling.
6. Simulation.
8. Code Examples.

## Is VHDL and Verilog same?

Verilog and VHDL are two Hardware Description Languages (HDL) that help to describe digital electronic systems. The main difference between Verilog and VHDL is that Verilog is based on C language while VHDL is based on Ada and Pascal languages.

How to write Verilog code?

– The port list contains the input, output and inout variables. – Then comes the procedural statements; these statements are the assignment statements and are used to express the logical formulae. – The end of a module is followed by endmodule keyword. These keywords are defined in Verilog IEEE 1134 standard.

### What is the difference between Verilog and Xilinx?

– The ability to parse C code accurately – The ability to analyze the C code to determine its control flow and data flow in precise detail – A tool that can walk the control and dataflows and synthesize Verilog fragments

How to use Verilog?

– It helps to reduce time to market and cost for Analog Mixed Signal ASIC/SoCâ€™s by catching bugs in early stage of verification. – It helps catching bugs which normally go undetected due to missing links in verification. – Like Digital Functional Verification, it provides 99.99% functional correctness of Analog Mixed Signal Design.

## How to learn learning Verilog?

– Verilog HDL: A Guide to Digital Design and Synthesis by Samir Palnitkar, 2nd Edition – Verilog Digital System Design, by Zainalabedin Navabi – A Verilog HDL primer, by Jayaram Bhasker – Verilog: Frequently Asked Questions,Shivakumar Chonnad (Interview Preparation)