7 |
use File::Slurp; |
use File::Slurp; |
8 |
use Data::Dump qw/dump/; |
use Data::Dump qw/dump/; |
9 |
use M6502; |
use M6502; |
10 |
use Screen qw/$white $black/; |
use Screen; |
11 |
|
|
12 |
use base qw(Class::Accessor VRac M6502 Screen Prefs Tape); |
use base qw(Class::Accessor VRac M6502 Screen Prefs Tape Session); |
13 |
#__PACKAGE__->mk_accessors(qw()); |
#__PACKAGE__->mk_accessors(qw()); |
14 |
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|
15 |
=head1 NAME |
=head1 NAME |
18 |
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19 |
=head1 VERSION |
=head1 VERSION |
20 |
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|
21 |
Version 0.05 |
Version 0.06 |
22 |
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23 |
=cut |
=cut |
24 |
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|
25 |
our $VERSION = '0.05'; |
our $VERSION = '0.06'; |
26 |
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|
27 |
=head1 SUMMARY |
=head1 SUMMARY |
28 |
|
|
29 |
Emulator or Orao 8-bit 6502 machine popular in Croatia |
Emulator for Orao 8-bit 6502 machine popular in Croatia (especially schools) |
30 |
|
|
31 |
=cut |
=cut |
32 |
|
|
33 |
=head1 FUNCTIONS |
=head1 FUNCTIONS |
34 |
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|
35 |
=head2 boot |
=head2 run |
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Start emulator, open L<Screen>, load initial ROM images, and render memory |
|
36 |
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|
37 |
my $emu = Orao->new({}); |
Start emulator, open L<Screen>, load initial ROM images, and start emulator loop |
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$emu->boot; |
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38 |
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|
39 |
=cut |
=cut |
40 |
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|
41 |
our $emu; |
our $emu; |
42 |
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|
43 |
select(STDERR); $| = 1; |
sub run { |
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sub boot { |
|
44 |
my $self = shift; |
my $self = shift; |
45 |
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|
46 |
warn "Orao calling upstream init\n"; |
warn "Orao calling upstream init\n"; |
47 |
$self->SUPER::init( |
$self->SUPER::init( |
48 |
read => sub { $self->read( @_ ) }, |
read => sub { $self->read( @_ ) }, |
54 |
warn "emulating ", $#mem, " bytes of memory\n"; |
warn "emulating ", $#mem, " bytes of memory\n"; |
55 |
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|
56 |
# $self->scale( 2 ); |
# $self->scale( 2 ); |
57 |
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# $self->show_mem( 1 ); |
58 |
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$self->load_session( 'sess/current' ); |
59 |
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|
60 |
$self->open_screen; |
$self->open_screen; |
61 |
$self->load_rom({ |
$self->load_rom({ |
81 |
$self->trace( 0 ); |
$self->trace( 0 ); |
82 |
$self->debug( 0 ); |
$self->debug( 0 ); |
83 |
|
|
84 |
warn "rendering video memory\n"; |
warn "rendering memory\n"; |
85 |
$self->render_vram( @mem[ 0x6000 .. 0x7fff ] ); |
$self->render_mem( @mem ); |
86 |
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|
87 |
if ( $self->show_mem ) { |
if ( $self->show_mem ) { |
88 |
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warn "rendering memory map\n"; |
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$self->render_mem( @mem ); |
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89 |
my @mmap = ( |
my @mmap = ( |
90 |
0x0000, 0x03FF, 'nulti blok', |
0x0000, 0x03FF, 'nulti blok', |
91 |
0x0400, 0x5FFF, 'korisnički RAM (23K)', |
0x0400, 0x5FFF, 'korisnički RAM (23K)', |
97 |
0xE000, 0xFFFF, 'sistemski ROM', |
0xE000, 0xFFFF, 'sistemski ROM', |
98 |
); |
); |
99 |
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100 |
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print "Orao memory map:"; |
101 |
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102 |
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while ( @mmap ) { |
103 |
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my ( $from, $to, $desc ) = splice(@mmap, 0, 3); |
104 |
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printf("%04x-%04x %s\n", $from, $to, $desc); |
105 |
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} |
106 |
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107 |
} |
} |
108 |
$self->sync; |
|
109 |
$self->trace( $trace ); |
$self->trace( $trace ); |
110 |
$self->debug( $debug ); |
$self->debug( $debug ); |
111 |
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#( $A, $P, $X, $Y, $S, $IPeriod ) = ( 1, 2, 3, 4, 5, 6 ); |
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112 |
warn "Orao boot finished", |
warn "Orao boot finished", |
113 |
$self->trace ? ' trace' : '', |
$self->trace ? ' trace' : '', |
114 |
$self->debug ? ' debug' : '', |
$self->debug ? ' debug' : '', |
116 |
|
|
117 |
M6502::reset(); |
M6502::reset(); |
118 |
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|
119 |
$self->booted( 1 ); |
# $self->load_tape( '../oraoigre/bdash.tap' ); |
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} |
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=head2 run |
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Run interactive emulation loop |
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120 |
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121 |
$emu->run; |
$self->loop( sub { |
122 |
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my $run_for = shift; |
123 |
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warn sprintf("about to exec from PC %04x for %d cycles\n", $PC, $run_for) if $self->trace; |
124 |
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M6502::exec( $run_for ); |
125 |
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$self->render_vram; |
126 |
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}); |
127 |
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}; |
128 |
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=cut |
|
129 |
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130 |
sub run { |
=head1 Helper functions |
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my $self = shift; |
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$self->boot if ( ! $self->booted ); |
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131 |
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132 |
# $self->load_tape( '../oraoigre/bdash.tap' ); |
=head2 write_chunk |
133 |
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134 |
$self->loop; |
Write chunk directly into memory, updateing vram if needed |
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}; |
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135 |
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136 |
=head1 Helper functions |
$emu->write_chunk( 0x1000, $chunk_data ); |
137 |
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138 |
=cut |
=cut |
139 |
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|
140 |
# write chunk directly into memory, updateing vram if needed |
sub write_chunk { |
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sub _write_chunk { |
|
141 |
my $self = shift; |
my $self = shift; |
142 |
my ( $addr, $chunk ) = @_; |
my ( $addr, $chunk ) = @_; |
143 |
$self->write_chunk( $addr, $chunk ); |
$self->SUPER::write_chunk( $addr, $chunk ); |
144 |
my $end = $addr + length($chunk); |
my $end = $addr + length($chunk); |
145 |
my ( $f, $t ) = ( 0x6000, 0x7fff ); |
my ( $f, $t ) = ( 0x6000, 0x7fff ); |
146 |
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|
153 |
$t = $end if ( $end < $t ); |
$t = $end if ( $end < $t ); |
154 |
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155 |
warn sprintf("refresh video ram %04x-%04x\n", $f, $t); |
warn sprintf("refresh video ram %04x-%04x\n", $f, $t); |
156 |
$self->render_vram( @mem[ 0x6000 .. 0x7fff ] ); |
$self->render_vram; |
157 |
$self->render_mem( @mem ) if $self->show_mem; |
$self->render_mem( @mem ); |
158 |
} |
} |
159 |
|
|
160 |
=head2 load_image |
=head2 load_image |
183 |
if ( $size == 65538 ) { |
if ( $size == 65538 ) { |
184 |
$addr = 0; |
$addr = 0; |
185 |
warn sprintf "loading oraoemu 64k dump %s at %04x - %04x %02x\n", $path, $addr, $addr+$size-1, $size; |
warn sprintf "loading oraoemu 64k dump %s at %04x - %04x %02x\n", $path, $addr, $addr+$size-1, $size; |
186 |
$self->_write_chunk( $addr, substr($buff,2) ); |
$self->write_chunk( $addr, substr($buff,2) ); |
187 |
return 1; |
return 1; |
188 |
} elsif ( $size == 32800 ) { |
} elsif ( $size == 32800 ) { |
189 |
$addr = 0; |
$addr = 0; |
190 |
warn sprintf "loading oraoemu 1.3 dump %s at %04x - %04x %02x\n", $path, $addr, $addr+$size-1, $size; |
warn sprintf "loading oraoemu 1.3 dump %s at %04x - %04x %02x\n", $path, $addr, $addr+$size-1, $size; |
191 |
$self->_write_chunk( $addr, substr($buff,0x20) ); |
$self->write_chunk( $addr, substr($buff,0x20) ); |
192 |
return 1; |
return 1; |
193 |
} |
} |
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printf "loading %s at %04x - %04x %02x\n", $path, $addr, $addr+$size-1, $size; |
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$self->_write_chunk( $addr, $buff ); |
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return 1; |
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my $chunk; |
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my $pos = 0; |
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while ( my $long = substr($buff,$pos,4) ) { |
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my @b = split(//, $long, 4); |
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$chunk .= |
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( $b[3] || '' ) . |
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( $b[2] || '' ) . |
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( $b[1] || '' ) . |
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( $b[0] || '' ); |
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$pos += 4; |
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} |
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$self->_write_chunk( $addr, $chunk ); |
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194 |
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195 |
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printf "loading %s at %04x - %04x %02x\n", $path, $addr, $addr+$size-1, $size; |
196 |
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$self->write_chunk( $addr, $buff ); |
197 |
return 1; |
return 1; |
198 |
}; |
}; |
199 |
|
|
224 |
'backspace' => 224, |
'backspace' => 224, |
225 |
}, |
}, |
226 |
0x87FD => sub { |
0x87FD => sub { |
227 |
my ( $self, $key ) = @_; |
my $self = shift; |
228 |
if ( $key eq 'return' ) { |
if ( $self->key_active('return') ) { |
229 |
M6502::_write( 0xfc, 13 ); |
M6502::_write( 0xfc, 13 ); |
230 |
warn "return\n"; |
warn "return\n"; |
231 |
return 0; |
return 0; |
232 |
} elsif ( $key =~ m/ ctrl/ || $self->key_down( 'left ctrl' ) || $self->key_down( 'right ctrl' ) ) { |
} elsif ( $self->key_active('left ctrl','right ctrl') ) { |
233 |
warn "ctrl\n"; |
warn "ctrl\n"; |
234 |
return 16; |
return 16; |
235 |
} |
} |
242 |
'f1' => 224, |
'f1' => 224, |
243 |
}, |
}, |
244 |
0x87FB => sub { |
0x87FB => sub { |
245 |
my ( $self, $key ) = @_; |
my $self = shift; |
246 |
if ( $key eq 'space' ) { |
if ( $self->key_active('space') ) { |
247 |
|
warn "space\n"; |
248 |
return 32; |
return 32; |
249 |
} elsif ( $self->key_down( 'left shift' ) || $self->key_down( 'right shift' ) ) { |
} elsif ( $self->key_active('left shift','right shift') ) { |
250 |
warn "shift\n"; |
warn "shift\n"; |
251 |
return 16; |
return 16; |
252 |
# } elsif ( $self->tape ) { |
# } elsif ( $self->tape ) { |
340 |
sub read { |
sub read { |
341 |
my $self = shift; |
my $self = shift; |
342 |
my ($addr) = @_; |
my ($addr) = @_; |
343 |
|
return if ( $addr > 0xffff ); |
344 |
my $byte = $mem[$addr]; |
my $byte = $mem[$addr]; |
345 |
confess sprintf("can't find memory at address %04x",$addr) unless defined($byte); |
confess sprintf("can't find memory at address %04x",$addr) unless defined($byte); |
346 |
warn sprintf("# Orao::read(%04x) = %02x\n", $addr, $byte) if $self->trace; |
warn sprintf("# Orao::read(%04x) = %02x\n", $addr, $byte) if $self->trace; |
349 |
|
|
350 |
if ( defined( $keyboard->{$addr} ) ) { |
if ( defined( $keyboard->{$addr} ) ) { |
351 |
warn sprintf("keyboard port: %04x\n",$addr) if $self->trace; |
warn sprintf("keyboard port: %04x\n",$addr) if $self->trace; |
352 |
my $key = $self->key_pressed; |
|
353 |
if ( defined($key) ) { |
my $ret = $keyboard_none; |
354 |
my $ret = $keyboard_none; |
my $r = $keyboard->{$addr} || confess "no definition for keyboard port found"; |
355 |
my $r = $keyboard->{$addr} || confess "no definition for keyboard port found"; |
if ( ref($r) eq 'CODE' ) { |
356 |
if ( ref($r) eq 'CODE' ) { |
$ret = $r->($self); |
357 |
$ret = $r->($self, $key); |
} else { |
358 |
} elsif ( defined($r->{$key}) ) { |
foreach my $k ( keys %$r ) { |
359 |
$ret = $r->{$key}; |
my $return = 0; |
360 |
if ( ref($ret) eq 'CODE' ) { |
if ( $self->key_active($k) ) { |
361 |
$ret = $ret->($self); |
warn "key '$k' is active\n"; |
362 |
|
$return ||= $r->{$k}; |
363 |
} |
} |
364 |
} else { |
$ret = $return if $return; |
|
warn sprintf("keyboard port: %04x unknown key: '%s'\n", $addr, $key) if $debug; |
|
365 |
} |
} |
|
warn sprintf("keyboard port: %04x key:%s code:%d\n",$addr,$key,$ret) if ( $ret != $keyboard_none ); |
|
|
return $ret; |
|
366 |
} |
} |
367 |
return $keyboard_none; |
warn sprintf("keyboard port: %04x code: %d\n",$addr,$ret) if ( $ret != $keyboard_none ); |
368 |
|
return $ret; |
369 |
} |
} |
370 |
|
|
371 |
if ( $addr == 0x87ff ) { |
if ( $addr == 0x87ff ) { |
372 |
return $self->read_tape; |
return $self->read_tape; |
373 |
} |
} |
374 |
|
|
375 |
$self->mmap_pixel( $addr, 0, $byte, 0 ); |
$self->mmap_pixel( $addr, 0, $byte, 0 ) if $self->show_mem; |
376 |
return $byte; |
return $byte; |
377 |
} |
} |
378 |
|
|
390 |
warn sprintf("# Orao::write(%04x,%02x)\n", $addr, $byte) if $self->trace; |
warn sprintf("# Orao::write(%04x,%02x)\n", $addr, $byte) if $self->trace; |
391 |
|
|
392 |
if ( $addr == 0x8800 ) { |
if ( $addr == 0x8800 ) { |
393 |
|
$self->write_tape( $byte ); |
394 |
warn sprintf "sound ignored: %x\n", $byte; |
warn sprintf "sound ignored: %x\n", $byte; |
395 |
} |
} |
396 |
|
|
398 |
confess sprintf "write access 0x%04x > 0xafff aborting\n", $addr; |
confess sprintf "write access 0x%04x > 0xafff aborting\n", $addr; |
399 |
} |
} |
400 |
|
|
401 |
$self->mmap_pixel( $addr, $byte, 0, 0 ); |
$self->mmap_pixel( $addr, $byte, 0, 0 ) if $self->show_mem; |
|
|
|
402 |
$mem[$addr] = $byte; |
$mem[$addr] = $byte; |
403 |
return; |
return; |
404 |
} |
} |
405 |
|
|
406 |
|
=head1 Architecture specific |
407 |
|
|
408 |
=head2 render_vram |
=head2 render_vram |
409 |
|
|
410 |
Render one frame of video ram |
Render one frame of video ram |
411 |
|
|
412 |
$self->render_vram( @video_memory ); |
$self->render_vram; |
413 |
|
|
414 |
=cut |
=cut |
415 |
|
|
|
my @flip; |
|
|
|
|
|
foreach my $i ( 0 .. 255 ) { |
|
|
my $t = 0; |
|
|
$i & 0b00000001 and $t = $t | 0b10000000; |
|
|
$i & 0b00000010 and $t = $t | 0b01000000; |
|
|
$i & 0b00000100 and $t = $t | 0b00100000; |
|
|
$i & 0b00001000 and $t = $t | 0b00010000; |
|
|
$i & 0b00010000 and $t = $t | 0b00001000; |
|
|
$i & 0b00100000 and $t = $t | 0b00000100; |
|
|
$i & 0b01000000 and $t = $t | 0b00000010; |
|
|
$i & 0b10000000 and $t = $t | 0b00000001; |
|
|
#warn "$i = $t\n"; |
|
|
$flip[$i] = $t; |
|
|
} |
|
|
|
|
|
|
|
416 |
sub render_vram { |
sub render_vram { |
417 |
my $self = shift; |
my $self = shift; |
418 |
|
|
419 |
confess "no data?" unless (@_); |
my $pixels = pack("C*", map { $flip[$_] } @mem[ 0x6000 .. 0x7fff ]); |
|
confess "screen size not 256*256/8 but ",($#_+1) unless (($#_+1) == (256*256/8)); |
|
|
|
|
|
return unless $self->booted; |
|
|
|
|
|
my $pixels = pack("C*", map { $flip[$_] } @_); |
|
420 |
|
|
421 |
my $vram = SDL::Surface->new( |
my $vram = SDL::Surface->new( |
422 |
-width => 256, |
-width => 256, |
430 |
$self->render_frame( $vram ); |
$self->render_frame( $vram ); |
431 |
} |
} |
432 |
|
|
433 |
|
=head2 cpu_PC |
434 |
|
|
435 |
|
Helper metod to set or get PC for current architecture |
436 |
|
|
437 |
|
=cut |
438 |
|
|
439 |
|
sub cpu_PC { |
440 |
|
my ( $self, $addr ) = @_; |
441 |
|
if ( defined($addr) ) { |
442 |
|
$PC = $addr; |
443 |
|
warn sprintf("running from PC %04x\n", $PC); |
444 |
|
}; |
445 |
|
return $PC; |
446 |
|
} |
447 |
|
|
448 |
|
=head1 SEE ALSO |
449 |
|
|
450 |
|
L<VRac>, L<M6502>, L<Screen>, L<Tape> |
451 |
|
|
452 |
=head1 AUTHOR |
=head1 AUTHOR |
453 |
|
|
454 |
Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |
Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |
455 |
|
|
|
=head1 BUGS |
|
|
|
|
456 |
=head1 ACKNOWLEDGEMENTS |
=head1 ACKNOWLEDGEMENTS |
457 |
|
|
458 |
See also L<http://www.foing.hr/~fng_josip/orao.htm> which is source of all |
See also L<http://www.foing.hr/~fng_josip/orao.htm> which is source of all |