12 |
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13 |
use Carp qw/confess/; |
use Carp qw/confess/; |
14 |
use Data::Dump qw/dump/; |
use Data::Dump qw/dump/; |
15 |
use M6502 qw'@mem'; |
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16 |
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use Exporter 'import'; |
17 |
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our @EXPORT = qw'$white $black @flip'; |
18 |
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19 |
use base qw(Class::Accessor Prefs); |
use base qw(Class::Accessor Prefs); |
20 |
__PACKAGE__->mk_accessors(qw(app event)); |
__PACKAGE__->mk_accessors(qw(app event)); |
23 |
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24 |
Screen - simulated 256*256 pixels monochrome screen using SDL |
Screen - simulated 256*256 pixels monochrome screen using SDL |
25 |
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26 |
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=head1 Architecture dependent |
27 |
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28 |
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You may override following methods if you want to implement keyboard on each |
29 |
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keypress event. Alternative is to use <read> hook and trap memory access. |
30 |
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31 |
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=head2 key_down |
32 |
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33 |
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$self->key_down( 'a' ); |
34 |
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35 |
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=cut |
36 |
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37 |
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sub key_down {} |
38 |
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39 |
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=head2 key_up |
40 |
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41 |
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$self->key_up( 'a' ); |
42 |
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43 |
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=cut |
44 |
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45 |
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sub key_up {} |
46 |
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47 |
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48 |
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=head1 Architecture independent |
49 |
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50 |
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You don't need to override any of following function in your architecture, |
51 |
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but you might want to call them. |
52 |
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53 |
=head2 open_screen |
=head2 open_screen |
54 |
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55 |
Open simulated screen |
Open simulated screen |
72 |
-width => 256 * $self->scale + ( $self->show_mem ? 256 : 0 ), |
-width => 256 * $self->scale + ( $self->show_mem ? 256 : 0 ), |
73 |
-height => 256 * $self->scale, |
-height => 256 * $self->scale, |
74 |
-depth => 16, |
-depth => 16, |
75 |
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-flags=>SDL_DOUBLEBUF | SDL_HWSURFACE | SDL_HWACCEL, |
76 |
); |
); |
77 |
#$app->grab_input( SDL_GRAB_QUERY ); |
#$app->grab_input( SDL_GRAB_QUERY ); |
78 |
$app->grab_input( SDL_GRAB_OFF ); |
$app->grab_input( SDL_GRAB_OFF ); |
79 |
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$app->title( ref($self) ); |
80 |
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81 |
$self->app( $app ); |
$self->app( $app ); |
82 |
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86 |
warn "# created SDL::App\n"; |
warn "# created SDL::App\n"; |
87 |
} |
} |
88 |
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89 |
my $white = SDL::Color->new( -r => 0xff, -g => 0xff, -b => 0xff ); |
our $white = SDL::Color->new( -r => 0xff, -g => 0xff, -b => 0xff ); |
90 |
my $black = SDL::Color->new( -r => 0x80, -g => 0x80, -b => 0x80 ); |
our $black = SDL::Color->new( -r => 0x80, -g => 0x80, -b => 0x80 ); |
91 |
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92 |
my $red = SDL::Color->new( -r => 0xff, -g => 0x00, -b => 0x00 ); |
my $red = SDL::Color->new( -r => 0xff, -g => 0x00, -b => 0x00 ); |
93 |
my $green = SDL::Color->new( -r => 0x00, -g => 0xff, -b => 0x00 ); |
my $green = SDL::Color->new( -r => 0x00, -g => 0xff, -b => 0x00 ); |
94 |
my $blue = SDL::Color->new( -r => 0x00, -g => 0x00, -b => 0xff ); |
my $blue = SDL::Color->new( -r => 0x00, -g => 0x00, -b => 0xff ); |
95 |
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my $rect_screen = SDL::Rect->new( -x => 0, -y => 0, -width => 256, -height => 256 ); |
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my $rect_mem = SDL::Rect->new( -x => 256, -y => 0, -width => 256, -height => 256 ); |
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=head2 p |
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$screen->p( $x, $y, 1 ); |
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=cut |
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sub p { |
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my $self = shift; |
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my ($x,$y,$w) = (@_); |
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warn "p($x,$y,$w)\n" if $self->debug; |
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my $scale = $self->scale; |
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my $rect = SDL::Rect->new( |
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-height => $scale, |
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-width => $scale, |
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-x => $x * $scale, |
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-y => $y * $scale, |
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); |
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$app->fill( $rect, $w ? $white : $black ); |
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$app->update( $rect ); |
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} |
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96 |
=head2 mem_xy |
=head2 mem_xy |
97 |
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|
98 |
Helper to return x and y coordinates in memory map |
Helper to return x and y coordinates in memory map |
110 |
return ($x,$y); |
return ($x,$y); |
111 |
} |
} |
112 |
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=head2 vram |
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Push byte to video memory and draw it |
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$screen->vram( $offset, $byte ); |
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=cut |
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my $_vram_counter; |
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sub vram { |
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return; |
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my ( $self, $offset, $byte ) = @_; |
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my $x = ( $offset % 32 ) << 3; |
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my $y = $offset >> 5; |
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my $mask = 1; |
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my $scale = $self->scale; |
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printf "## vram %04x %02x*%02x %02x\n", $offset, $x, $y, $byte if $self->trace; |
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foreach ( 0 .. 7 ) { |
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my $on = $byte & $mask; |
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if ( $scale == 1 ) { |
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$app->pixel( $x + $_, $y, $on ? $white : $black ); |
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} else { |
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$self->p($x + $_, $y, $on ); |
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} |
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$mask = $mask << 1; |
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} |
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$app->sync if ( $_vram_counter++ % 10 == 0 ); |
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} |
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113 |
=head2 mmap_pixel |
=head2 mmap_pixel |
114 |
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115 |
Draw pixel in memory map |
Draw pixel in memory map |
148 |
$app->sync; |
$app->sync; |
149 |
} |
} |
150 |
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151 |
=head2 render |
=head2 render_vram |
152 |
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153 |
Render one frame of video ram |
Render one frame of video ram |
154 |
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155 |
$self->render( @video_memory ); |
$self->render_vram; |
156 |
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157 |
=cut |
=cut |
158 |
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159 |
sub render { |
sub render_vram { |
160 |
my $self = shift; |
my $self = shift; |
161 |
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162 |
return unless $self->booted; |
confess "please implement $self::render_vram"; |
163 |
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} |
164 |
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die "this function isn't supported if scale isn't 1" unless $self->scale == 1; |
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165 |
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166 |
confess "no data?" unless (@_); |
=head2 render_frame |
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confess "screen size not 256*256/8 but ",($#_+1) unless (($#_+1) == (256*256/8)); |
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167 |
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168 |
my $pixels = pack("C*", @_); |
Render one frame of video ram |
169 |
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170 |
|
$self->render_frame( $vram_sdl_surface ); |
171 |
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172 |
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=cut |
173 |
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174 |
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sub render_frame { |
175 |
|
my $self = shift; |
176 |
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177 |
|
my $vram = shift; |
178 |
|
confess "need SDL::Surface as argument" unless ref($vram) eq 'SDL::Surface'; |
179 |
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my $vram = SDL::Surface->new( |
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-width => 256, |
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-height => 256, |
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-depth => 1, # 1 bit per pixel |
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-pitch => 32, # bytes per line |
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-from => $pixels, |
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); |
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$vram->set_colors( 0, $black, $white, $red ); |
|
180 |
$vram->display_format; |
$vram->display_format; |
181 |
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182 |
my $rect = SDL::Rect->new( -x => 0, -y => 0, -width => 256, -height => 256 ); |
my $scale = $self->scale || confess "no scale?"; |
183 |
$vram->blit( $rect, $app, $rect_screen ); |
|
184 |
|
my $rect = SDL::Rect->new( -x => 0, -y => 0, -width => 256 * $scale, -height => 256 * $scale ); |
185 |
|
my $rect_screen = SDL::Rect->new( -x => 0, -y => 0, -width => 256 * $scale, -height => 256 * $scale ); |
186 |
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|
187 |
|
if ( $scale > 1 ) { |
188 |
|
use SDL::Tool::Graphic; |
189 |
|
# last parametar is anti-alias |
190 |
|
my $zoomed = SDL::Tool::Graphic->zoom( $vram, $self->scale, $self->scale, 1 ); |
191 |
|
$zoomed->blit( $rect, $app, $rect_screen ); |
192 |
|
} else { |
193 |
|
$vram->blit( $rect, $app, $rect_screen ); |
194 |
|
} |
195 |
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|
196 |
$app->sync; |
$app->sync; |
197 |
} |
} |
198 |
|
|
199 |
|
|
200 |
=head2 render_mem |
=head2 render_mem |
201 |
|
|
202 |
$self->render_mem( @ram ); |
$self->render_mem( @mem ); |
203 |
|
|
204 |
=cut |
=cut |
205 |
|
|
223 |
|
|
224 |
$vram->display_format; |
$vram->display_format; |
225 |
|
|
226 |
my $rect = SDL::Rect->new( -x => 0, -y => 0, -width => 256, -height => 256 ); |
my $rect = SDL::Rect->new( -x => 0, -y => 0, -width => 256, -height => 256 ); |
227 |
|
my $rect_mem = SDL::Rect->new( -x => 256 * $self->scale, -y => 0, -width => 256, -height => 256 ); |
228 |
|
|
229 |
$vram->blit( $rect, $app, $rect_mem ); |
$vram->blit( $rect, $app, $rect_mem ); |
230 |
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|
231 |
$app->sync; |
$app->sync; |
247 |
my $pending_key; |
my $pending_key; |
248 |
my $run_for = 2000; |
my $run_for = 2000; |
249 |
|
|
|
my $key_down; |
|
|
|
|
|
sub key_down { |
|
|
my $self = shift; |
|
|
my $key = shift; |
|
|
warn "key_down($key) = ",$key_down->{$key}, "\n" if $self->debug; |
|
|
return $key_down->{$key}; |
|
|
} |
|
|
|
|
250 |
sub key_pressed { |
sub key_pressed { |
251 |
my $self = shift; |
my $self = shift; |
252 |
|
|
255 |
|
|
256 |
my $event = $self->event || confess "no event?"; |
my $event = $self->event || confess "no event?"; |
257 |
|
|
258 |
$event->poll || return $pending_key; |
if ( ! $event->poll ) { |
259 |
|
return $pending_key unless $self->can('session_event'); |
260 |
|
if ( my $h = $self->session_event('key_pressed') ) { |
261 |
|
my ( $key, $state ) = %$h; |
262 |
|
if ( $state ) { |
263 |
|
$pending_key = $key; |
264 |
|
$self->key_down( $key ); |
265 |
|
} else { |
266 |
|
undef $pending_key; |
267 |
|
$self->key_up( $key ); |
268 |
|
} |
269 |
|
} |
270 |
|
return $pending_key; |
271 |
|
} |
272 |
|
|
273 |
my $type = $event->type(); |
my $type = $event->type(); |
274 |
|
|
278 |
|
|
279 |
if ($type == SDL_KEYDOWN) { |
if ($type == SDL_KEYDOWN) { |
280 |
$k = $event->key_name(); |
$k = $event->key_name(); |
|
$key_down->{$k}++; |
|
281 |
if ( $k eq 'escape' ) { |
if ( $k eq 'escape' ) { |
282 |
$run_for = $self->cli; |
$run_for = $self->cli; |
283 |
warn "will check event loop every $run_for cycles\n"; |
warn "will check event loop every $run_for cycles\n"; |
285 |
} else { |
} else { |
286 |
warn "SDL_KEYDOWN ($type) = '$k'", $just_checking ? ' fake' : '', "\n"; |
warn "SDL_KEYDOWN ($type) = '$k'", $just_checking ? ' fake' : '', "\n"; |
287 |
$pending_key = $k; |
$pending_key = $k; |
288 |
|
$self->key_down( $k ); |
289 |
|
$self->record_session('key_pressed', { $k => 1 }); |
290 |
} |
} |
291 |
} elsif ( $type == SDL_KEYUP ) { |
} elsif ( $type == SDL_KEYUP ) { |
292 |
my $up = $event->key_name(); |
my $up = $event->key_name(); |
|
$key_down->{$up} = 0; |
|
293 |
warn "SDL_KEYUP ($type) = '$up'", $just_checking ? ' fake' : '', "\n"; |
warn "SDL_KEYUP ($type) = '$up'", $just_checking ? ' fake' : '', "\n"; |
294 |
|
$self->key_up( $up ); |
295 |
|
$self->record_session('key_pressed', { $up => 0 }); |
296 |
undef $pending_key; |
undef $pending_key; |
297 |
} |
} |
298 |
|
|
299 |
warn "key_pressed = $pending_key\n" if $pending_key; |
warn "key_pressed = $pending_key\n" if ( $pending_key ); |
300 |
|
|
301 |
return $pending_key; |
return $pending_key; |
302 |
} |
} |
303 |
|
|
304 |
=head2 loop |
=head2 loop |
305 |
|
|
306 |
Implement SDL event loop |
Implement CPU run for C<$run_run> cycles inside SDL event loop |
307 |
|
|
308 |
|
$self->loop( sub { |
309 |
|
my $run_for = shift; |
310 |
|
CPU::exec( $run_for ); |
311 |
|
$self->render_vram; |
312 |
|
} ); |
313 |
|
|
314 |
=cut |
=cut |
315 |
|
|
316 |
sub loop { |
sub loop { |
317 |
my $self = shift; |
my $self = shift; |
318 |
my $event = SDL::Event->new(); |
my $exec = shift; |
319 |
|
|
320 |
|
confess "need coderef as argument" unless ref($exec) eq 'CODE'; |
321 |
|
my $event = SDL::Event->new(); |
322 |
|
|
|
MAIN_LOOP: |
|
323 |
while ( 1 ) { |
while ( 1 ) { |
324 |
$self->key_pressed( 1 ); |
$self->key_pressed( 1 ); |
325 |
M6502::exec($run_for); |
$exec->($run_for); |
|
$self->render( @mem[ 0x6000 .. 0x7fff ] ); |
|
326 |
} |
} |
327 |
} |
} |
328 |
|
|
329 |
|
# helper array to flip bytes for display |
330 |
|
our @flip; |
331 |
|
|
332 |
|
foreach my $i ( 0 .. 255 ) { |
333 |
|
my $t = 0; |
334 |
|
$i & 0b00000001 and $t = $t | 0b10000000; |
335 |
|
$i & 0b00000010 and $t = $t | 0b01000000; |
336 |
|
$i & 0b00000100 and $t = $t | 0b00100000; |
337 |
|
$i & 0b00001000 and $t = $t | 0b00010000; |
338 |
|
$i & 0b00010000 and $t = $t | 0b00001000; |
339 |
|
$i & 0b00100000 and $t = $t | 0b00000100; |
340 |
|
$i & 0b01000000 and $t = $t | 0b00000010; |
341 |
|
$i & 0b10000000 and $t = $t | 0b00000001; |
342 |
|
#warn "$i = $t\n"; |
343 |
|
$flip[$i] = $t; |
344 |
|
} |
345 |
|
|
346 |
=head1 SEE ALSO |
=head1 SEE ALSO |
347 |
|
|
348 |
L<Orao> is sample implementation using this module |
L<Orao> is sample implementation using this module |
359 |
under the same terms as Perl itself. |
under the same terms as Perl itself. |
360 |
|
|
361 |
=cut |
=cut |
362 |
|
|
363 |
1; |
1; |