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Perl: the Markov chain saw

Re: Output not correct (Verilog::Netlist)

by toolic (Bishop)
on Nov 27, 2018 at 02:22 UTC ( #1226398=note: print w/replies, xml ) Need Help??

in reply to Output not correct

Your input file looks like Verilog, except that Verilog requires the keywords to be lower-case. If so, you can use the Verilog::Netlist parser to read the file and get all the signals you need. This is preferable to rolling your own parser, which can be difficult.
use warnings; use strict; use Data::Dumper qw(Dumper); use Verilog::Netlist qw(); use File::Slurp qw(write_file read_file); my $file = shift; # Create a temporary file with lower-case keywords my @lines; for (read_file($file)) { s/(\w+)/lc $1/e; push @lines, $_ } write_file('temp', @lines); my $nl = Verilog::Netlist->new(); $nl->read_file(filename => 'temp'); $nl->exit_if_error(); my %sigs; my @wires; for my $mod ($nl->top_modules_sorted()) { print 'mod=', $mod->name, "\n"; for my $sig ($mod->nets()) { push @wires, $sig->name; } for my $sig ($mod->ports_sorted()) { my $dir = $sig->direction(); $dir .= 'put' unless $dir eq 'inout'; my $name = $sig->name(); $sigs{$name} = {dir => $dir}; } for my $cell ($mod->cells_sorted) { printf " Cell %s\n", $cell->name; for my $pin ($cell->pins_sorted) { printf " %s\n", $pin->netname; } } } print Dumper(\%sigs); print Dumper(\@wires);

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