6 |
use warnings; |
use warnings; |
7 |
|
|
8 |
use base qw/Class::Accessor/; |
use base qw/Class::Accessor/; |
9 |
__PACKAGE__->mk_accessors(qw(tape tape_pos)); |
__PACKAGE__->mk_accessors(qw(tape tape_pos tape_rate)); |
10 |
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|
11 |
use File::Slurp; |
use File::Slurp; |
12 |
use Carp qw/confess/; |
use Carp qw/confess/; |
33 |
} |
} |
34 |
} |
} |
35 |
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|
36 |
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my $loop; |
37 |
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|
38 |
sub read_tape { |
sub read_tape { |
39 |
my $self = shift; |
my $self = shift; |
40 |
if ( ! $self->tape ) { |
if ( ! $self->tape ) { |
47 |
_warn "end of tape [$pos]"; |
_warn "end of tape [$pos]"; |
48 |
return -1; |
return -1; |
49 |
} |
} |
50 |
my $byte = substr($self->tape,$pos++,1); |
my $byte = ord(substr($self->tape,$pos,1)); |
51 |
$self->tape_pos( $pos ); |
|
52 |
return ord($byte); |
if ( ++$loop % $self->tape_rate == 0 ) { |
53 |
|
warn sprintf("tape pos %d = %02x\n", $pos, $byte); |
54 |
|
$pos++; |
55 |
|
$self->tape_pos( $pos ); |
56 |
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} |
57 |
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return $byte; |
58 |
} |
} |
59 |
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|
60 |
=head2 load_tape |
=head2 load_tape |
71 |
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|
72 |
$self->tape_pos( 0 ); |
$self->tape_pos( 0 ); |
73 |
$self->tape( $tape ); |
$self->tape( $tape ); |
74 |
warn "loaded tape $path ", -s $path, " bytes\n"; |
$self->tape_rate( 512 ); |
75 |
|
warn "loaded tape $path ", -s $path, " bytes rate ", $self->tape_rate, "\n"; |
76 |
return 1; |
return 1; |
77 |
} |
} |
78 |
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