Reply To: RandomPkg: How to set weight for range

[Jim Lewis]

Hi Nikolai,

There is a simpler form of DistValSlv that returns values in the range of its argument, which is 0 to 15 if the argument is a literal or aggregate:

     A <= RndA.DistSlv((5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5), A'length) ;


If you prefer, you can also use named association:

     A <= RndA.DistSlv((0=>5, 1=>1, 2=>1, 3=>1, 4=>1, 5=>1, 6=>1,
                        7=>1, 8=>1, 9=>1, 10=>1, 11=>1, 12=>1,
                        13=>1, 14=>1, 15=>5), A'length) ;

With named association, you can also do the following:

     A <= RndA.DistSlv((0=>5, 1 to 14 =>1, 15=>5), A'length) ;





You can also do this with a coverage model:

     shared variable ACov : CovPType ;
     . . .
     process
     begin
       ACov.AddBins(5, GenBin(0)) ;
       ACov.AddBins(1, GenBin(1,14)) ;
       ACov.AddBins(5, GenBin(15)) ;

       . . .
       A <= ACov.RandCovPoint ;
       ACov.ICoverLast ;


Jim