show value block and not value

diff --git a/mifare-mad.pl b/mifare-mad.pl
index c74f03f..b786248 100755 (executable)
--- a/mifare-mad.pl
+++ b/mifare-mad.pl
@@ -175,12 +175,13 @@ foreach my $sector ( 0 .. 39 ) {
                                           : $access_condition_data->{$cond}
                                ;
                        if ( ! $trailer && ( $cond == 0b001 || $cond == 0b011 ) ) {
                                           : $access_condition_data->{$cond}
                                ;
                        if ( ! $trailer && ( $cond == 0b001 || $cond == 0b011 ) ) {

-                               my $value_block = unpack 'x4Lx8', $block;
-                               my $positive = $value_block & 0x8000_0000;
-                               my $value    = $value_block & 0x7fff_ffff;
-                               $value = -$value if ! $positive;
+                               my ( $value_block, $not ) = unpack 'llx8', $block;
+                               my $value = $value_block;
+#                              my $positive = $value_block & 0x8000_0000;
+#                              my $value    = $value_block & 0x7fff_ffff;
+#                              $value = -$value if ! $positive;

                                #$condition .= sprintf " = %d 0x%x", $value, $value_block;
                                #$condition .= sprintf " = %d 0x%x", $value, $value_block;

-                               $condition .= " = " . $value;
+                               $condition .= sprintf " = %d 0x%x", $value_block, $not;

                        }
                } else {
                        $condition = '';
                        }
                } else {
                        $condition = '';