Compiler directives in system verilog

What are directives in Verilog?

Introduction.
A compiler directive may be used to control the compilation of a Verilog description.
The grave accent mark, `, denotes a compiler directive.
A directive is effective from the point at which it is declared to the point at which another directive overrides it, even across file boundaries..

What are system tasks and compiler directives in Verilog?

$writeTo display strings, variables, and expressions without appending the newline at the end of the message and executing in the active region.$strobeTo display strings, variables, and expressions at the end of the current time slot i.e. in the postpone region..

What are system tasks and compiler directives in Verilog?

Compiler Directives in Verilog

What are system tasks and compiler directives in Verilog?

A compiler directive is a statement that causes the compiler to take a specific action during compilation.
Conditional compilation.
Conditional compilation provides a way of including or omitting selected lines of source code depending on the values of literals specified by the DEFINE directive..

What are system tasks and compiler directives in Verilog?

The `timescale compiler directive specifies the time unit and precision for the modules that follow it.
The time_unit is the measurement of delays and simulation time, while the time_precision specifies how delay values are rounded before being used in the simulation..

What is a compiler directive?

Compiler directives are not bound by modules or by files.
The effect of a compiler directive starts from the place where it appears in the source code, and continues through all files processed subsequently, to the point where the directive is superseded, or the end of the last file to be processed..

What is the SystemVerilog directive?

The SystemVerilog macro is a compiler directive that substitutes itself in the code with a defined context.
In simple words, wherever macro is used, it is replaced with macro context and gives compilation error in case of misuse.
Macro uses global space..

Compiler Directives in Verilog