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package Galaksija; |
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|
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use warnings; |
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use strict; |
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|
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use Carp qw/confess/; |
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use File::Slurp; |
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use Data::Dump qw/dump/; |
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use Z80; # import |
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|
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use base qw(Class::Accessor VRac Z80 Screen Prefs Session); |
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__PACKAGE__->mk_accessors(qw(booted)); |
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|
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=head1 NAME |
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|
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Galaksija - Galaksija emulator |
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|
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=head1 VERSION |
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|
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Version 0.01 |
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|
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=cut |
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|
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our $VERSION = '0.01'; |
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|
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=head1 SUMMARY |
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|
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Emulator of Galaksija 8-bit Z80 machine popular in former Yugoslavia |
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|
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=cut |
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|
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=head1 FUNCTIONS |
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|
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=head2 run |
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|
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=cut |
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|
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our $emu; |
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|
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sub run { |
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my $self = shift; |
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|
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warn "Galaksija $Galaksija::VERSION emulation starting\n"; |
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|
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$self->show_mem( 1 ); |
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#$self->trace( 1 ); |
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|
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$self->SUPER::init( |
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read => sub { $self->read( @_ ) }, |
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write => sub { $self->write( @_ ) }, |
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); |
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|
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for my $a ( 0x1000 .. 0x2000 ) { |
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$mem[$a] = 0xff; |
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} |
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|
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$self->open_screen; |
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$self->load_rom({ |
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0x0000, 'rom/Galaksija/ROM1.BIN', |
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0x2000, 'rom/Galaksija/ROM2.BIN', |
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# 0xE000, 'rom/Galaksija/GAL_PLUS.BIN', |
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}); |
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|
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# keyboard |
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$mem[$_] = 0xff foreach ( 0x2000 .. 0x2800 ); |
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|
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# display |
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$mem[$_] = 0x20 foreach ( 0x2800 .. 0x2a00 ); |
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|
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# 6116-ice |
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$mem[$_] = 0 foreach ( 0x2a00 .. 0x4000 ); |
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|
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$emu = $self; |
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|
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my ( $trace, $debug ) = ( $self->trace, $self->debug ); |
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$self->trace( 0 ); |
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$self->debug( 0 ); |
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|
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warn "rendering memory\n"; |
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$self->render_mem( @mem ); |
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|
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#$self->sync; |
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$self->trace( $trace ); |
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$self->debug( $debug ); |
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|
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warn "Galaksija boot finished", |
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$self->trace ? ' trace' : '', |
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$self->debug ? ' debug' : '', |
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"\n"; |
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|
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Z80::reset(); |
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|
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my $hor_pos = 0; |
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|
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$self->loop( sub { |
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Z80::exec( $_[0] ); |
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if ( $hor_pos != $mem[ 0x2ba8 ] ) { |
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warn "scroll 0x2ba8", $self->hexdump( 0x2ba8 ); |
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$hor_pos = $mem[ 0x2ba8 ]; |
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} |
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$self->render_vram; |
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}); |
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|
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} |
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|
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|
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=head1 Memory management |
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|
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=cut |
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|
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=head2 read |
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|
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Read from memory |
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|
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$byte = read( $address ); |
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|
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=cut |
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|
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sub read { |
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my $self = shift; |
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my ($addr) = @_; |
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my $byte = $mem[$addr]; |
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confess sprintf("can't find memory at address %04x",$addr) unless defined($byte); |
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warn sprintf("# Galaksija::read(%04x) = %02x\n", $addr, $byte) if $self->trace; |
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|
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$self->mmap_pixel( $addr, 0, $byte, 0 ) if $self->show_mem; |
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return $byte; |
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} |
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|
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=head2 write |
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|
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Write into emory |
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|
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write( $address, $byte ); |
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|
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=cut |
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|
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sub write { |
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my $self = shift; |
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my ($addr,$byte) = @_; |
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warn sprintf("# Galaksija::write(%04x,%02x)\n", $addr, $byte) if $self->trace; |
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|
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return if ( $addr > 0x4000 ); |
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|
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$self->mmap_pixel( $addr, $byte, 0, 0 ) if $self->show_mem; |
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$mem[$addr] = $byte; |
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return; |
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} |
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|
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=head1 Architecture specific |
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|
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=cut |
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|
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my @keymap = ( |
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'a' .. 'z', |
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qw/up down left right space/, |
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'0' .. '9', |
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':', '"', ',', '=', '.', '/', 'enter', 'tab', |
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'left alt', 'delete', 'scroll lock', 'left shift' |
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); |
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|
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my $remap; |
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my $o = 1; |
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|
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foreach my $key ( @keymap ) { |
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$remap->{$key} = $o; |
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$o++; |
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} |
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|
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=head2 key_down |
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|
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=cut |
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|
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sub key_down { |
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my ( $self, $key ) = @_; |
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warn "key down: $key ", $remap->{$key}; |
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$self->write( 0x2000 + $remap->{$key}, 0xfe ); |
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} |
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|
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=head2 key_up |
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|
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=cut |
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|
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sub key_up { |
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my ( $self, $key ) = @_; |
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warn "key up: $key ", $remap->{$key}; |
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$self->write( 0x2000 + $remap->{$key}, 0xff ); |
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} |
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|
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=head2 render_vram |
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|
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Simple hex dumper of text buffer |
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|
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=cut |
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|
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my $last_dump = ''; |
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|
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sub render_vram { |
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my $self = shift; |
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|
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my $addr = 0x2800; |
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|
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my $dump; |
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|
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for my $y ( 0 .. 15 ) { |
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# $dump .= sprintf "%2d: %s\n",$y, join('', map { sprintf("%02x ",$_) } @mem[ $addr .. $addr+31 ] ); |
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$dump .= sprintf "%2d: %s\n",$y, join('', map { chr( $_ ) } @mem[ $addr .. $addr+31 ] ); |
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$addr += 32; |
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} |
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|
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if ( $mem[ 0x2bb0 ] ) { |
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warn "scroll", $self->hexdump( 0x2bb0 ); |
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} |
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|
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if ( $dump ne $last_dump ) { |
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print $dump; |
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$last_dump = $dump; |
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} |
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} |
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|
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=head2 cpu_PC |
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|
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Helper metod to set or get PC for current architecture |
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|
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=cut |
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|
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sub cpu_PC { |
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my ( $self, $addr ) = @_; |
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if ( defined($addr) ) { |
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$PC = $addr; |
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warn sprintf("running from PC %04x\n", $PC); |
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}; |
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return $PC; |
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} |
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|
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=head1 SEE ALSO |
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|
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L<VRac>, L<Screen>, L<Z80> |
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|
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=head1 AUTHOR |
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|
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Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |
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|
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=head1 BUGS |
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|
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Galaksija Plus isn't emulated. I don't have additional rom, but I would |
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B<love> to have support for this machine. So if you have ROM for Galaksija |
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Plus, get in touch! |
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|
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=head1 ACKNOWLEDGEMENTS |
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|
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Based on Galaxy emulator L<http://emulator.galaksija.org/> for Windows which |
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is in turn based on DOS version by Miodrag Jevremoviæ |
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L<http://solair.eunet.yu/~jovkovic/galaxy/>. |
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|
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=head1 COPYRIGHT & LICENSE |
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|
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Copyright 2007 Dobrica Pavlinusic, All Rights Reserved. |
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|
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This program is free software; you can redistribute it and/or modify it |
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under the same terms as Perl itself. |
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|
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=cut |
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|
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1; # End of Galaksija |
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