Verilog task

A task in Verilog is a reusable block of code that can be called multiple times from within the same module or from other modules. It is similar to a function in other programming languages.

The syntax for defining a Verilog task is as follows:

task task_name (input arg1, input arg2, ..., output argN);
// task code
endtask

The task_name is the name of the task, and the input and output arguments are defined within the parentheses. The task code is then written within the task and endtask keywords.

To call a task from within a Verilog module, use the following syntax:

task_name(arg1, arg2, ..., argN);

The arguments must be passed in the order they are defined in the task.

Tasks are useful for simplifying complex code and making it more modular. They can be used to perform specific operations, such as calculating a checksum or performing a data conversion. They can also be used to improve code readability by encapsulating specific functionality into separate tasks.