#!usr/bin/perl
unlink("ccix.sdp_trc");

##</code><code>##

#!/usr/bin/perl
use warnings;
use strict;
unlink("ccix.sdp_trc");

##</code><code>##

$ perl -le'$x = "hexadecimal addr:0xdf7780 value"; print $x; $x =~ s/ addr:0x \K (?= [[:xdigit:]]+ ) /500/x; print $x'
hexadecimal addr:0xdf7780 value
hexadecimal addr:0x500df7780 value


##</code><code>##

$ perl -le'$x = "hexadecimal addr:0xdf7780 value"; print $x; $x =~ s/ addr:0x \K ( [[:xdigit:]]+ ) / $y = "500000000"; $l = length $1; substr $y, -$l, $l, $1; $y /xe; print $x'
hexadecimal addr:0xdf7780 value
hexadecimal addr:0x500df7780 value


##</code><code>##

$ perl -le'$x = "hexadecimal addr:0xdf7780 value"; print $x; $x =~ s/ addr:0x \K ( [[:xdigit:]]+ ) / sprintf "%x", hex( $1 ) + 0x500000000 /xe; print $x'
hexadecimal addr:0xdf7780 value
hexadecimal addr:0x500df7780 value