Third Lecture: Post-processsing with vcs+ files

1,dump Wave by system function

$vcdpluson (level_number,module_instance,.... | Net_or_reg)

$vcdplusoff (module_instance,... | Net_or_reg)

2.debug

The following considerations are considered when simulating:

1.speed

The main is the dump data data volume format TB write scientific specifications .....

2.signal Visibility

3.signal tractablility

Mainly log display and wave waveform, schematic, source ...

4.usability

Easy to use, this is mainly Verdi

Suggestions:

1. Use ' ifdef and ' endif

' Ifdef DUMPME

$vcdpluson ();

' EndIf

2. It is not recommended to use $test$plusargs or $value $plusargs <== compile slow, TB write nonstandard

Initial begin:enable_dumping

if ($test $plusargs ("Dumpall")) $vcdpluson ();

else if ($test $plusargs ("Dump+modulea")) $vcdpluson (1,modulea);

End

Third Lecture: Post-processsing with vcs+ files