Difference between Verilog simulators

what is the difference between IVerilog and NC Verilog ?? How is it that the same verilog code runs differently on different simulatos?

nishanthp68 said:

what is the difference between IVerilog and NC Verilog ?? How is it that the same verilog code runs differently on different simulatos?

Click to expand...

nishanthp68 said:

what is the difference between IVerilog and NC Verilog ?? How is it that the same verilog code runs differently on different simulatos?

Click to expand...

HI...
Iverilog:
Icarus Verilog is a Verilog simulation and synthesis tool. It operates as a compiler, compiling source code written in Verilog (IEEE-1364) into some target format. For batch simulation, the compiler can generate an intermediate form called vvp assembly. This intermediate form is executed by the ``vvp'' command. For synthesis, the compiler generates netlists in the desired format.
The compiler proper is intended to parse and elaborate design descriptions written to the IEEE standard IEEE Std 1364-2005. This is a fairly large and complex standard, so it will take some time to fill all the dark alleys of the standard, but that's the goal.
The main porting target is Linux, although it works well on many similar operating systems. Various people have contributed precompiled binaries of stable releases for a variety of targets. These releases are ported by volunteers, so what binaries are available depends on who takes the time to do the packaging. Icarus Verilog has been ported to That Other Operating System, as a command line tool, and there are installers for users without compilers. You can compile it entirely with free tools, too, although there are precompiled binaries of stable releases.

NCverilog:

NCverilog simulator was developed by cadence systems and its commonly known as NCsim developed for unix environment.and its a Compiler for Verilog 95, Verilog 2001 and SystemVerilog.

for further details refer this link it wil explain you how its work..NCverilog | May's Home