To copy all the lines containing only \ or $ in them.It is most commonly used to remove trailing newline from a string.This function returns the number of the characters removed.What will be the output of the following Perl code?What will be the output of the following Perl code?It will also return the number of characters removed.This section consists of questions in Verilog and SystemVerilog that cover both the digital logic design modelling as well as testbench modelling concepts.4.1 VerilogIn blocking assignments, evaluation and assignment happens immediately.Thus, if there are multiple blocking assignments in a sequential block, each statement execution follows in a blocking way as shown below.Hence, in third statement, the new values of x and y are evaluated and assigned to z.In nonblocking assignments, all assignments are deferred until end of current simulation tick.So, only one flip flow will be needed.In second case, old value of B is sampled before the new value is reflected in each cycle.What will be the output of a in below code?Hence, a=0 will be printed.The nonblocking assignments will have no effect.This is also known as transport delay.In second case, both a and b are evaluated after 5 time units and a+b is assigned to c in the same time unit.This is known as inertial delay.Analyze following code and find what is wrong with this code that implements a combinational logic?Since, signal d is missing in the sensitivity list, this can cause evaluation of e to be not triggered on any changes in d.This will cause simulation results to look wrong even though synthesis results would be correct.What is wrong with following coding style?The Verilog simulators don’t guarantee any execution order between multiple always blocks.In above example, since we are using blocking assignments, there can be a race condition and you can see different values of X1 and X2 in multiple simulations.This is a typical example of what a race condition is.If the second always block gets executed before first always block, we will see both X1 and X2 to be zeroWhat is the difference between synchronous and asynchronous reset and how do we model synchronous and asynchronous reset using verilog code?A reset is used to force the state of a design to a known condition after powering up.If a design samples reset on an edge of clock, then it is called as synchronous reset.If the design samples the reset signal without any clock then it is called an asynchronous reset.Both of these are equality or comparison operators.A = 3 ’b1x0