6 |
use Carp qw/confess/; |
use Carp qw/confess/; |
7 |
use File::Slurp; |
use File::Slurp; |
8 |
use Data::Dump qw/dump/; |
use Data::Dump qw/dump/; |
9 |
use M6502; |
use M6502 '0.0.3'; |
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 |
|
|
15 |
=head1 NAME |
=head1 NAME |
18 |
|
|
19 |
=head1 VERSION |
=head1 VERSION |
20 |
|
|
21 |
Version 0.05 |
Version 0.06 |
22 |
|
|
23 |
=cut |
=cut |
24 |
|
|
25 |
our $VERSION = '0.05'; |
our $VERSION = '0.06'; |
26 |
|
|
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 |
|
|
35 |
=head2 boot |
=head2 run |
|
|
|
|
Start emulator, open L<Screen>, load initial ROM images, and render memory |
|
36 |
|
|
37 |
my $emu = Orao->new({}); |
Start emulator, open L<Screen>, load initial ROM images, and start emulator loop |
|
$emu->boot; |
|
38 |
|
|
39 |
=cut |
=cut |
40 |
|
|
41 |
our $emu; |
our $emu; |
42 |
|
|
43 |
select(STDERR); $| = 1; |
sub run { |
|
|
|
|
sub boot { |
|
44 |
my $self = shift; |
my $self = shift; |
45 |
|
|
46 |
|
M6502::reset(); |
47 |
|
$self->_init_callbacks; |
48 |
|
|
49 |
warn "Orao calling upstream init\n"; |
warn "Orao calling upstream init\n"; |
50 |
$self->SUPER::init( |
$self->SUPER::init( |
51 |
read => sub { $self->read( @_ ) }, |
read => sub { $self->read( @_ ) }, |
57 |
warn "emulating ", $#mem, " bytes of memory\n"; |
warn "emulating ", $#mem, " bytes of memory\n"; |
58 |
|
|
59 |
# $self->scale( 2 ); |
# $self->scale( 2 ); |
60 |
|
$self->show_mem( 1 ); |
61 |
|
$self->load_session( 'sess/current' ); |
62 |
|
|
63 |
$self->open_screen; |
$self->open_screen; |
64 |
$self->load_rom({ |
$self->load_rom({ |
84 |
$self->trace( 0 ); |
$self->trace( 0 ); |
85 |
$self->debug( 0 ); |
$self->debug( 0 ); |
86 |
|
|
87 |
warn "rendering video memory\n"; |
warn "rendering memory\n"; |
88 |
$self->render_vram( @mem[ 0x6000 .. 0x7fff ] ); |
$self->render_mem( @mem ); |
89 |
|
|
90 |
if ( $self->show_mem ) { |
if ( $self->show_mem ) { |
91 |
|
|
|
warn "rendering memory map\n"; |
|
|
|
|
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$self->render_mem( @mem ); |
|
|
|
|
92 |
my @mmap = ( |
my @mmap = ( |
93 |
0x0000, 0x03FF, 'nulti blok', |
0x0000, 0x03FF, 'nulti blok', |
94 |
0x0400, 0x5FFF, 'korisnički RAM (23K)', |
0x0400, 0x5FFF, 'korisnički RAM (23K)', |
100 |
0xE000, 0xFFFF, 'sistemski ROM', |
0xE000, 0xFFFF, 'sistemski ROM', |
101 |
); |
); |
102 |
|
|
103 |
|
print "Orao memory map:"; |
104 |
|
|
105 |
|
while ( @mmap ) { |
106 |
|
my ( $from, $to, $desc ) = splice(@mmap, 0, 3); |
107 |
|
printf("%04x-%04x %s\n", $from, $to, $desc); |
108 |
|
} |
109 |
|
|
110 |
} |
} |
111 |
$self->sync; |
|
112 |
$self->trace( $trace ); |
$self->trace( $trace ); |
113 |
$self->debug( $debug ); |
$self->debug( $debug ); |
114 |
|
|
|
#( $A, $P, $X, $Y, $S, $IPeriod ) = ( 1, 2, 3, 4, 5, 6 ); |
|
|
|
|
115 |
warn "Orao boot finished", |
warn "Orao boot finished", |
116 |
$self->trace ? ' trace' : '', |
$self->trace ? ' trace' : '', |
117 |
$self->debug ? ' debug' : '', |
$self->debug ? ' debug' : '', |
118 |
"\n"; |
"\n"; |
119 |
|
|
120 |
M6502::reset(); |
# $self->load_tape( 'tapes/Orao/bdash.tap' ); |
121 |
|
# $self->load_tape( 'tapes/Orao/crtanje.tap' ); |
122 |
$self->booted( 1 ); |
$self->load_tape( 'tapes/Orao/jjack.tap' ); |
123 |
} |
|
124 |
|
$self->render_vram; |
125 |
=head2 run |
|
126 |
|
$self->loop( sub { |
127 |
Run interactive emulation loop |
my $run_for = shift; |
128 |
|
warn sprintf("about to exec from PC %04x for %d cycles\n", $PC, $run_for) if $self->trace; |
129 |
$emu->run; |
M6502::exec( $run_for ); |
130 |
|
# $self->render_vram; |
131 |
=cut |
}); |
132 |
|
}; |
133 |
|
|
|
sub run { |
|
|
my $self = shift; |
|
134 |
|
|
135 |
$self->boot if ( ! $self->booted ); |
=head1 Helper functions |
136 |
|
|
137 |
# $self->load_tape( '../oraoigre/bdash.tap' ); |
=head2 write_chunk |
138 |
|
|
139 |
$self->loop; |
Write chunk directly into memory, updateing vram if needed |
|
}; |
|
140 |
|
|
141 |
=head1 Helper functions |
$emu->write_chunk( 0x1000, $chunk_data ); |
142 |
|
|
143 |
=cut |
=cut |
144 |
|
|
145 |
# write chunk directly into memory, updateing vram if needed |
sub write_chunk { |
|
sub _write_chunk { |
|
146 |
my $self = shift; |
my $self = shift; |
147 |
my ( $addr, $chunk ) = @_; |
my ( $addr, $chunk ) = @_; |
148 |
$self->write_chunk( $addr, $chunk ); |
$self->SUPER::write_chunk( $addr, $chunk ); |
149 |
my $end = $addr + length($chunk); |
my $end = $addr + length($chunk); |
150 |
my ( $f, $t ) = ( 0x6000, 0x7fff ); |
my ( $f, $t ) = ( 0x6000, 0x7fff ); |
151 |
|
|
158 |
$t = $end if ( $end < $t ); |
$t = $end if ( $end < $t ); |
159 |
|
|
160 |
warn sprintf("refresh video ram %04x-%04x\n", $f, $t); |
warn sprintf("refresh video ram %04x-%04x\n", $f, $t); |
161 |
$self->render_vram( @mem[ 0x6000 .. 0x7fff ] ); |
$self->render_vram; |
162 |
$self->render_mem( @mem ) if $self->show_mem; |
$self->render_mem( @mem ); |
163 |
} |
} |
164 |
|
|
165 |
=head2 load_image |
=head2 load_image |
188 |
if ( $size == 65538 ) { |
if ( $size == 65538 ) { |
189 |
$addr = 0; |
$addr = 0; |
190 |
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; |
191 |
$self->_write_chunk( $addr, substr($buff,2) ); |
$self->write_chunk( $addr, substr($buff,2) ); |
192 |
return 1; |
return 1; |
193 |
} elsif ( $size == 32800 ) { |
} elsif ( $size == 32800 ) { |
194 |
$addr = 0; |
$addr = 0; |
195 |
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; |
196 |
$self->_write_chunk( $addr, substr($buff,0x20) ); |
$self->write_chunk( $addr, substr($buff,0x20) ); |
197 |
return 1; |
return 1; |
198 |
} |
} |
|
printf "loading %s at %04x - %04x %02x\n", $path, $addr, $addr+$size-1, $size; |
|
|
$self->_write_chunk( $addr, $buff ); |
|
|
return 1; |
|
|
|
|
|
my $chunk; |
|
|
|
|
|
my $pos = 0; |
|
|
|
|
|
while ( my $long = substr($buff,$pos,4) ) { |
|
|
my @b = split(//, $long, 4); |
|
|
$chunk .= |
|
|
( $b[3] || '' ) . |
|
|
( $b[2] || '' ) . |
|
|
( $b[1] || '' ) . |
|
|
( $b[0] || '' ); |
|
|
$pos += 4; |
|
|
} |
|
|
|
|
|
$self->_write_chunk( $addr, $chunk ); |
|
199 |
|
|
200 |
|
printf "loading %s at %04x - %04x %02x\n", $path, $addr, $addr+$size-1, $size; |
201 |
|
$self->write_chunk( $addr, $buff ); |
202 |
return 1; |
return 1; |
203 |
}; |
}; |
204 |
|
|
229 |
'backspace' => 224, |
'backspace' => 224, |
230 |
}, |
}, |
231 |
0x87FD => sub { |
0x87FD => sub { |
232 |
my ( $self, $key ) = @_; |
my $self = shift; |
233 |
if ( $key eq 'return' ) { |
if ( $self->key_active('return') ) { |
234 |
M6502::_write( 0xfc, 13 ); |
# M6502::_write( 0xfc, 13 ); |
235 |
warn "return\n"; |
warn "return\n"; |
236 |
return 0; |
return 0; |
237 |
} elsif ( $key =~ m/ ctrl/ || $self->key_down( 'left ctrl' ) || $self->key_down( 'right ctrl' ) ) { |
} elsif ( $self->key_active('left ctrl','right ctrl') ) { |
238 |
warn "ctrl\n"; |
warn "ctrl\n"; |
239 |
return 16; |
return 16; |
240 |
} |
} |
247 |
'f1' => 224, |
'f1' => 224, |
248 |
}, |
}, |
249 |
0x87FB => sub { |
0x87FB => sub { |
250 |
my ( $self, $key ) = @_; |
my $self = shift; |
251 |
if ( $key eq 'space' ) { |
if ( $self->key_active('space') ) { |
252 |
|
warn "space\n"; |
253 |
return 32; |
return 32; |
254 |
} elsif ( $self->key_down( 'left shift' ) || $self->key_down( 'right shift' ) ) { |
} elsif ( $self->key_active('left shift','right shift') ) { |
255 |
warn "shift\n"; |
warn "shift\n"; |
256 |
return 16; |
return 16; |
257 |
# } elsif ( $self->tape ) { |
# } elsif ( $self->tape ) { |
345 |
sub read { |
sub read { |
346 |
my $self = shift; |
my $self = shift; |
347 |
my ($addr) = @_; |
my ($addr) = @_; |
348 |
|
die "address over 64k: $addr" if ( $addr > 0xffff ); |
349 |
my $byte = $mem[$addr]; |
my $byte = $mem[$addr]; |
350 |
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); |
351 |
warn sprintf("# Orao::read(%04x) = %02x\n", $addr, $byte) if $self->trace; |
warn sprintf("# Orao::read(%04x) = %02x\n", $addr, $byte) if $self->trace; |
354 |
|
|
355 |
if ( defined( $keyboard->{$addr} ) ) { |
if ( defined( $keyboard->{$addr} ) ) { |
356 |
warn sprintf("keyboard port: %04x\n",$addr) if $self->trace; |
warn sprintf("keyboard port: %04x\n",$addr) if $self->trace; |
357 |
my $key = $self->key_pressed; |
|
358 |
if ( defined($key) ) { |
my $ret = $keyboard_none; |
359 |
my $ret = $keyboard_none; |
my $r = $keyboard->{$addr} || confess "no definition for keyboard port found"; |
360 |
my $r = $keyboard->{$addr} || confess "no definition for keyboard port found"; |
if ( ref($r) eq 'CODE' ) { |
361 |
if ( ref($r) eq 'CODE' ) { |
$ret = $r->($self); |
362 |
$ret = $r->($self, $key); |
} else { |
363 |
} elsif ( defined($r->{$key}) ) { |
foreach my $k ( keys %$r ) { |
364 |
$ret = $r->{$key}; |
my $return = 0; |
365 |
if ( ref($ret) eq 'CODE' ) { |
if ( $self->key_active($k) ) { |
366 |
$ret = $ret->($self); |
warn "key '$k' is active\n"; |
367 |
|
$return ||= $r->{$k}; |
368 |
} |
} |
369 |
} else { |
$ret = $return if $return; |
|
warn sprintf("keyboard port: %04x unknown key: '%s'\n", $addr, $key) if $debug; |
|
370 |
} |
} |
|
warn sprintf("keyboard port: %04x key:%s code:%d\n",$addr,$key,$ret) if ( $ret != $keyboard_none ); |
|
|
return $ret; |
|
371 |
} |
} |
372 |
return $keyboard_none; |
warn sprintf("keyboard port: %04x code: %d\n",$addr,$ret) if ( $ret != $keyboard_none ); |
373 |
|
return $ret; |
374 |
} |
} |
375 |
|
|
376 |
if ( $addr == 0x87ff ) { |
if ( $addr == 0x87ff ) { |
377 |
return $self->read_tape; |
return $self->read_tape; |
378 |
} |
} |
379 |
|
|
380 |
$self->mmap_pixel( $addr, 0, $byte, 0 ); |
$self->mmap_pixel( $addr, 0, $byte, 0 ) if $self->show_mem; |
381 |
return $byte; |
return $byte; |
382 |
} |
} |
383 |
|
|
395 |
warn sprintf("# Orao::write(%04x,%02x)\n", $addr, $byte) if $self->trace; |
warn sprintf("# Orao::write(%04x,%02x)\n", $addr, $byte) if $self->trace; |
396 |
|
|
397 |
if ( $addr == 0x8800 ) { |
if ( $addr == 0x8800 ) { |
398 |
|
$self->write_tape( $byte ); |
399 |
warn sprintf "sound ignored: %x\n", $byte; |
warn sprintf "sound ignored: %x\n", $byte; |
400 |
} |
} |
401 |
|
|
403 |
confess sprintf "write access 0x%04x > 0xafff aborting\n", $addr; |
confess sprintf "write access 0x%04x > 0xafff aborting\n", $addr; |
404 |
} |
} |
405 |
|
|
406 |
$self->mmap_pixel( $addr, $byte, 0, 0 ); |
$self->render_vram if ( $addr >= 0x6000 && $addr <= 0x7fff ); |
407 |
|
|
408 |
|
$self->mmap_pixel( $addr, $byte, 0, 0 ) if $self->show_mem; |
409 |
$mem[$addr] = $byte; |
$mem[$addr] = $byte; |
410 |
return; |
return; |
411 |
} |
} |
412 |
|
|
413 |
|
=head1 Architecture specific |
414 |
|
|
415 |
=head2 render_vram |
=head2 render_vram |
416 |
|
|
417 |
Render one frame of video ram |
Render one frame of video ram |
418 |
|
|
419 |
$self->render_vram( @video_memory ); |
$self->render_vram; |
420 |
|
|
421 |
=cut |
=cut |
422 |
|
|
|
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; |
|
|
} |
|
|
|
|
|
|
|
423 |
sub render_vram { |
sub render_vram { |
424 |
my $self = shift; |
my $self = shift; |
425 |
|
|
426 |
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 { $flip[$_] } @_); |
|
427 |
|
|
428 |
my $vram = SDL::Surface->new( |
my $vram = SDL::Surface->new( |
429 |
-width => 256, |
-width => 256, |
435 |
$vram->set_colors( 0, $black, $white ); |
$vram->set_colors( 0, $black, $white ); |
436 |
|
|
437 |
$self->render_frame( $vram ); |
$self->render_frame( $vram ); |
438 |
|
|
439 |
|
print '.'; |
440 |
|
} |
441 |
|
|
442 |
|
=head2 cpu_PC |
443 |
|
|
444 |
|
Helper metod to set or get PC for current architecture |
445 |
|
|
446 |
|
=cut |
447 |
|
|
448 |
|
sub cpu_PC { |
449 |
|
my ( $self, $addr ) = @_; |
450 |
|
if ( defined($addr) ) { |
451 |
|
$PC = $addr; |
452 |
|
warn sprintf("running from PC %04x\n", $PC); |
453 |
|
}; |
454 |
|
return $PC; |
455 |
} |
} |
456 |
|
|
457 |
|
|
458 |
|
=head2 _init_callbacks |
459 |
|
|
460 |
|
Mark memory areas for which we want to get callbacks to perl |
461 |
|
|
462 |
|
=cut |
463 |
|
|
464 |
|
sub _init_callbacks { |
465 |
|
my $self = shift; |
466 |
|
warn "set calbacks to perl for memory areas...\n"; |
467 |
|
|
468 |
|
# don't call for anything |
469 |
|
M6502::set_all_callbacks( 0x00 ); |
470 |
|
|
471 |
|
# video ram |
472 |
|
M6502::set_write_callback( $_ ) foreach ( 0x6000 .. 0x7fff ); |
473 |
|
# keyboard |
474 |
|
M6502::set_read_callback( $_ ) foreach ( keys %$keyboard ); |
475 |
|
# tape |
476 |
|
M6502::set_read_callback( 0x87ff ); |
477 |
|
M6502::set_write_callback( 0x8800 ); |
478 |
|
|
479 |
|
my $map = ''; |
480 |
|
foreach ( 0 .. 0xffff ) { |
481 |
|
my $cb = M6502::get_callback( $_ ); |
482 |
|
$map .= sprintf( "%04x: %02x\n", $_, $cb ) if $cb; |
483 |
|
} |
484 |
|
warn "callback map:\n$map\n"; |
485 |
|
} |
486 |
|
|
487 |
|
=head1 SEE ALSO |
488 |
|
|
489 |
|
L<VRac>, L<M6502>, L<Screen>, L<Tape> |
490 |
|
|
491 |
=head1 AUTHOR |
=head1 AUTHOR |
492 |
|
|
493 |
Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |
Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |
494 |
|
|
|
=head1 BUGS |
|
|
|
|
495 |
=head1 ACKNOWLEDGEMENTS |
=head1 ACKNOWLEDGEMENTS |
496 |
|
|
497 |
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 |