verilog binary to decimal and hexadecimal

Verilog Basics: Binary, Decimal, and Hexadecimal

In this article, we will explore the fundamental concepts of Verilog programming language, including binary, decimal, and hexadecimal representations.

Verilog is a hardware description language (HDL) used to design digital electronic systems. It is based on C-like syntax with several unique features that make it different from other programming languages. One of the key aspects of Verilog is its use of operators, which are essential for performing various operations in the code.

Operators in Verilog

Verilog has three types of operators: unary, binary, and ternary or conditional. These operators serve as building blocks to create complex expressions and statements in the code. Let's take a closer look at each type:

1. Binary Operators: Binary operators appear between their operands, such as `X = y | z`, where `y` and `z` are the operands.

2. Ternary or Conditional Operators: Ternary operators have two separate operators that separate three operands, such as `X = (y > 5) ? w : z`.

3. Unary Operators: Unary operators appear to the left of their operand, such as `X = ~y`, where `y` is the operand.

String Handling in Verilog

In Verilog, strings are used to represent sequences of characters. Unlike C, Verilog does not ignore spaces and tabs in strings. This means that if you have a string variable called `addr` with the value `'Earth '`, it will preserve the space.

However, there is an exception for single-line comments. In Verilog, single-line comments start with `//` and extend to the end of the line. This helps in commenting out sections of code without affecting its readability.

Indentation and White Space

Verilog uses white space characters (spaces, tabs, newlines, and formfeeds) to separate tokens and make the code easier to read. Unlike some programming languages, Verilog does not ignore these characters unless they separate tokens.

Comments in Verilog

There are two ways to write comments in Verilog: single-line comments and multiple-line comments. Single-line comments start with `//` and extend to the end of the line, while multiple-line comments start with `/*` and end with `*/`. Note that a single-line comment can be nested within a multiple-line comment.

Case Sensitivity and Token Termination

Verilog is case-sensitive, meaning that `var_a` and `var_A` are treated as different variables. Each line of code should be terminated by a semi-colon to indicate the end of the statement.

In conclusion, this article has covered some of the fundamental concepts in Verilog programming language, including binary, decimal, and hexadecimal representations, operators, string handling, indentation, white space, comments, case sensitivity, and token termination. Understanding these concepts is crucial for writing effective and efficient Verilog code.

Verilog binary to decimal and hexadecimal