/[VRac]/Galaksija.pm
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 131 by dpavlin, Sat Aug 4 20:50:33 2007 UTC revision 140 by dpavlin, Sun Aug 5 01:02:59 2007 UTC
# Line 43  sub run { Line 43  sub run {
43          warn "Galaksija $Galaksija::VERSION emulation starting\n";          warn "Galaksija $Galaksija::VERSION emulation starting\n";
44    
45          $self->show_mem( 1 );          $self->show_mem( 1 );
46          $self->trace( 1 );          #$self->trace( 1 );
47    
48          $self->SUPER::init(          $self->SUPER::init(
49                  read => sub { $self->read( @_ ) },                  read => sub { $self->read( @_ ) },
# Line 65  sub run { Line 65  sub run {
65          $mem[$_] = 0xff foreach ( 0x2000 .. 0x2800 );          $mem[$_] = 0xff foreach ( 0x2000 .. 0x2800 );
66    
67          # display          # display
68          $mem[$_] = ' '  foreach ( 0x2800 .. 0x2a00 );          $mem[$_] = 0x20 foreach ( 0x2800 .. 0x2a00 );
69    
70          # 6116-ice          # 6116-ice
71          $mem[$_] = 0    foreach ( 0x2a00 .. 0x4000 );          $mem[$_] = 0    foreach ( 0x2a00 .. 0x4000 );
# Line 76  sub run { Line 76  sub run {
76          $self->trace( 0 );          $self->trace( 0 );
77          $self->debug( 0 );          $self->debug( 0 );
78    
79          warn "rendering video memory\n";          warn "rendering memory\n";
80          #$self->render_vram( @mem[ 0x2800 .. 0x2a00 ] );          $self->render_mem( @mem );
81    
82          #$self->sync;          #$self->sync;
83          $self->trace( $trace );          $self->trace( $trace );
# Line 90  sub run { Line 90  sub run {
90    
91          Z80::reset();          Z80::reset();
92    
93            my $hor_pos = 0;
94    
95          $self->loop( sub {          $self->loop( sub {
96                  Z80::exec( $_[0] );                  Z80::exec( $_[0] );
97                  #$self->render_vram;                  if ( $hor_pos != $mem[ 0x2ba8 ] ) {
98                            warn "scroll 0x2ba8", $self->hexdump( 0x2ba8 );
99                            $hor_pos = $mem[ 0x2ba8 ];
100                    }
101                    $self->render_vram;
102          });          });
103    
104  }  }
# Line 100  sub run { Line 106  sub run {
106    
107  =head1 Memory management  =head1 Memory management
108    
 Galaksija implements all I/O using mmap addresses. This was main reason why  
 L<Acme::6502> was just too slow to handle it.  
   
109  =cut  =cut
110    
111  =head2 read  =head2 read
# Line 113  Read from memory Line 116  Read from memory
116    
117  =cut  =cut
118    
 my $keyboard_none = 255;  
   
119  my $keyboard = {};  my $keyboard = {};
120    
121  sub read {  sub read {
# Line 124  sub read { Line 125  sub read {
125          confess sprintf("can't find memory at address %04x",$addr) unless defined($byte);          confess sprintf("can't find memory at address %04x",$addr) unless defined($byte);
126          warn sprintf("# Galaksija::read(%04x) = %02x\n", $addr, $byte) if $self->trace;          warn sprintf("# Galaksija::read(%04x) = %02x\n", $addr, $byte) if $self->trace;
127    
128            $self->mmap_pixel( $addr, 0, $byte, 0 ) if $self->show_mem;
129          return $byte;          return $byte;
130  }  }
131    
# Line 140  sub write { Line 142  sub write {
142          my ($addr,$byte) = @_;          my ($addr,$byte) = @_;
143          warn sprintf("# Galaksija::write(%04x,%02x)\n", $addr, $byte) if $self->trace;          warn sprintf("# Galaksija::write(%04x,%02x)\n", $addr, $byte) if $self->trace;
144    
145            return if ( $addr > 0x4000 );
146    
147            $self->mmap_pixel( $addr, $byte, 0, 0 ) if $self->show_mem;
148          $mem[$addr] = $byte;          $mem[$addr] = $byte;
149          return;          return;
150  }  }
151    
152    =head1 Architecture specific
153    
154    =head2 render_vram
155    
156    Simple hex dumper of text buffer
157    
158    =cut
159    
160    my $last_dump = '';
161    
162    sub render_vram {
163            my $self = shift;
164    
165            my $addr = 0x2800;
166    
167            my $dump;
168    
169            for my $y ( 0 .. 15 ) {
170    #               $dump .= sprintf "%2d: %s\n",$y, join('', map { sprintf("%02x ",$_) } @mem[ $addr .. $addr+31 ] );
171                    $dump .= sprintf "%2d: %s\n",$y, join('', map { chr( $_ ) } @mem[ $addr .. $addr+31 ] );
172                    $addr += 32;
173            }
174    
175            if ( $mem[ 0x2bb0 ] ) {
176                    warn "scroll", $self->hexdump( 0x2bb0 );
177            }
178    
179            if ( $dump ne $last_dump ) {
180                    print $dump;
181                    $last_dump = $dump;
182            }
183    }
184    
185  =head2 cpu_PC  =head2 cpu_PC
186    
187  Helper metod to set or get PC for current architecture  Helper metod to set or get PC for current architecture
# Line 159  sub cpu_PC { Line 197  sub cpu_PC {
197          return $PC;          return $PC;
198  }  }
199    
200    =head1 SEE ALSO
201    
202    L<VRac>, L<Screen>, L<Z80>
203    
204  =head1 AUTHOR  =head1 AUTHOR
205    
206  Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >>  Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >>
207    
208    Based on Galaxy Win emulator L<http://emulator.galaksija.org/>
209    
210  =head1 BUGS  =head1 BUGS
211    
212  =head1 ACKNOWLEDGEMENTS  =head1 ACKNOWLEDGEMENTS
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