30 Asked Interview Questions and Answers (2024)

'rand' generates a random number, and 'randc' generates a random number with a specific distribution.

Example:

rand int randomNumber; // Generates a random integer randc int weightedRandomNumber; // Generates a random integer with specific distribution

'localparam' is used to define local parameters within a module or a generate block.

Example:

localparam WIDTH = 8;

'repeat' statement is used to execute a statement or block multiple times in a loop.

Example:

repeat (5) // Repeats the following statement 5 times $display("Hello");

'force' is used to drive a signal to a specific value during simulation, and 'release' is used to remove a previously forced value.

Example:

force data = 8'b10101010; // Forces 'data' to 8'b10101010 release data; // Releases the forced value of 'data'

'reg' is used for variables that can be assigned values inside an always block and represents a register.

Example:

reg [7:0] counter;

Verilog Interview Questions and Answers