Werner's Miscellanea
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| 1 | #!/usr/bin/perl |
| 2 | |
| 3 | $REF = "standby.fpg"; # reference bitstream |
| 4 | $LEN = 0x78dd0; # cut off trailing junk |
| 5 | |
| 6 | open(FILE, $REF) || die "$REF: $!"; |
| 7 | $ref = substr(join("", <FILE>), 0, $LEN); |
| 8 | close FILE; |
| 9 | |
| 10 | die "reference bitstream is too short" unless length $ref == $LEN; |
| 11 | |
| 12 | for (@ARGV) { |
| 13 | open(FILE, $_) || die "$_: $!"; |
| 14 | $c{$_} = substr(join("", <FILE>), 0, $LEN); |
| 15 | close FILE; |
| 16 | die "$_ is too short" unless length $c{$_} == $LEN; |
| 17 | } |
| 18 | |
| 19 | # @@@ not quite perfect - we should extract the cycle numbers and sort by them |
| 20 | |
| 21 | for (sort keys %c) { |
| 22 | $n = 0; |
| 23 | @a = (); |
| 24 | for ($i = 0; $i != $LEN; $i += 2) { |
| 25 | next unless substr($ref, $i, 2) ne substr($c{$_}, $i, 2); |
| 26 | $r = unpack("B*", substr($ref, $i, 2)); |
| 27 | $c = unpack("B*", substr($c{$_}, $i, 2)); |
| 28 | if (defined $s{$i}) { |
| 29 | $s = " " x 26; |
| 30 | } else { |
| 31 | $s = sprintf("%05x ", $i); |
| 32 | for ($j = 19; $j >= 0; $j--) { |
| 33 | $s .= $i & (1 << $j) ? "1" : "_"; |
| 34 | } |
| 35 | } |
| 36 | $s .= " | "; |
| 37 | for ($j = 0; $j != 16; $j++) { |
| 38 | $s .= " " if $j == 8; |
| 39 | $s .= substr($r, $j, 1) ? |
| 40 | substr($c, $j, 1) ? "1" : "0" : |
| 41 | substr($c, $j, 1) ? die : "_"; |
| 42 | # substr($c, $j, 1) ? "\033[7m \033[m" : "_"; |
| 43 | } |
| 44 | if ($i >= 0x10) { # count only fatal corruptions |
| 45 | push(@a, $i); |
| 46 | $n++; |
| 47 | } else { |
| 48 | $s .= " | $_\n"; |
| 49 | } |
| 50 | $s{$i} .= $s; |
| 51 | } |
| 52 | $i = 0; |
| 53 | for $a (@a) { |
| 54 | $i++; |
| 55 | $s{$a} .= " | $_ $i/$n\n"; |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | for (sort { $a <=> $b } keys %s) { |
| 60 | print $s{$_}; |
| 61 | } |
| 62 |
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