Werner's Miscellanea
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Source at commit 57b53c61c1b37a913fc963c3c0bec0364efbcb7e created 10 years 1 month ago. By Werner Almesberger, ircstat/ML: update for 2014-01 | |
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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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