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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); |
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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 0.00 |
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|
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=cut |
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|
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our $VERSION = '0.00'; |
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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[$_] = ' ' foreach ( 0x2800 .. 0x2a00 ); |
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|
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# 6116-ice |
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$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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$self->debug( 0 ); |
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|
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warn "rendering video memory\n"; |
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#$self->render_vram( @mem[ 0x2800 .. 0x2a00 ] ); |
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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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$self->debug ? ' debug' : '', |
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"\n"; |
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|
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Z80::reset(); |
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|
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$self->loop( sub { |
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Z80::exec( $_[0] ); |
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#$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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Galaksija implements all I/O using mmap addresses. This was main reason why |
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L<Acme::6502> was just too slow to handle it. |
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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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my $keyboard_none = 255; |
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|
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my $keyboard = {}; |
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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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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 $self->trace; |
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|
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$mem[$addr] = $byte; |
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return; |
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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 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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=head1 ACKNOWLEDGEMENTS |
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|
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See also L<> which is source of all |
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info about this machine (and even hardware implementation from 2007). |
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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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