| 1 |
package Galaksija; |
| 2 |
|
| 3 |
use warnings; |
| 4 |
use strict; |
| 5 |
|
| 6 |
use Carp qw/confess/; |
| 7 |
use File::Slurp; |
| 8 |
use Data::Dump qw/dump/; |
| 9 |
use Z80; # import |
| 10 |
|
| 11 |
use base qw(Class::Accessor VRac Z80 Screen Prefs); |
| 12 |
__PACKAGE__->mk_accessors(qw(booted)); |
| 13 |
|
| 14 |
=head1 NAME |
| 15 |
|
| 16 |
Galaksija - Galaksija emulator |
| 17 |
|
| 18 |
=head1 VERSION |
| 19 |
|
| 20 |
Version 0.00 |
| 21 |
|
| 22 |
=cut |
| 23 |
|
| 24 |
our $VERSION = '0.00'; |
| 25 |
|
| 26 |
=head1 SUMMARY |
| 27 |
|
| 28 |
Emulator of Galaksija 8-bit Z80 machine popular in former Yugoslavia |
| 29 |
|
| 30 |
=cut |
| 31 |
|
| 32 |
=head1 FUNCTIONS |
| 33 |
|
| 34 |
=head2 run |
| 35 |
|
| 36 |
=cut |
| 37 |
|
| 38 |
our $emu; |
| 39 |
|
| 40 |
sub run { |
| 41 |
my $self = shift; |
| 42 |
|
| 43 |
warn "Galaksija $Galaksija::VERSION emulation starting\n"; |
| 44 |
|
| 45 |
$self->show_mem( 1 ); |
| 46 |
#$self->trace( 1 ); |
| 47 |
|
| 48 |
$self->SUPER::init( |
| 49 |
read => sub { $self->read( @_ ) }, |
| 50 |
write => sub { $self->write( @_ ) }, |
| 51 |
); |
| 52 |
|
| 53 |
for my $a ( 0x1000 .. 0x2000 ) { |
| 54 |
$mem[$a] = 0xff; |
| 55 |
} |
| 56 |
|
| 57 |
$self->open_screen; |
| 58 |
$self->load_rom({ |
| 59 |
0x0000, 'rom/Galaksija/ROM1.BIN', |
| 60 |
0x2000, 'rom/Galaksija/ROM2.BIN', |
| 61 |
# 0xE000, 'rom/Galaksija/GAL_PLUS.BIN', |
| 62 |
}); |
| 63 |
|
| 64 |
# keyboard |
| 65 |
$mem[$_] = 0xff foreach ( 0x2000 .. 0x2800 ); |
| 66 |
|
| 67 |
# display |
| 68 |
$mem[$_] = 0x20 foreach ( 0x2800 .. 0x2a00 ); |
| 69 |
|
| 70 |
# 6116-ice |
| 71 |
$mem[$_] = 0 foreach ( 0x2a00 .. 0x4000 ); |
| 72 |
|
| 73 |
$emu = $self; |
| 74 |
|
| 75 |
my ( $trace, $debug ) = ( $self->trace, $self->debug ); |
| 76 |
$self->trace( 0 ); |
| 77 |
$self->debug( 0 ); |
| 78 |
|
| 79 |
warn "rendering memory\n"; |
| 80 |
$self->render_mem( @mem ); |
| 81 |
|
| 82 |
#$self->sync; |
| 83 |
$self->trace( $trace ); |
| 84 |
$self->debug( $debug ); |
| 85 |
|
| 86 |
warn "Galaksija boot finished", |
| 87 |
$self->trace ? ' trace' : '', |
| 88 |
$self->debug ? ' debug' : '', |
| 89 |
"\n"; |
| 90 |
|
| 91 |
Z80::reset(); |
| 92 |
|
| 93 |
my $hor_pos = 0; |
| 94 |
|
| 95 |
$self->loop( sub { |
| 96 |
Z80::exec( $_[0] ); |
| 97 |
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 |
} |
| 105 |
|
| 106 |
|
| 107 |
=head1 Memory management |
| 108 |
|
| 109 |
=cut |
| 110 |
|
| 111 |
=head2 read |
| 112 |
|
| 113 |
Read from memory |
| 114 |
|
| 115 |
$byte = read( $address ); |
| 116 |
|
| 117 |
=cut |
| 118 |
|
| 119 |
my $keyboard = {}; |
| 120 |
|
| 121 |
sub read { |
| 122 |
my $self = shift; |
| 123 |
my ($addr) = @_; |
| 124 |
my $byte = $mem[$addr]; |
| 125 |
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; |
| 127 |
|
| 128 |
$self->mmap_pixel( $addr, 0, $byte, 0 ) if $self->show_mem; |
| 129 |
return $byte; |
| 130 |
} |
| 131 |
|
| 132 |
=head2 write |
| 133 |
|
| 134 |
Write into emory |
| 135 |
|
| 136 |
write( $address, $byte ); |
| 137 |
|
| 138 |
=cut |
| 139 |
|
| 140 |
sub write { |
| 141 |
my $self = shift; |
| 142 |
my ($addr,$byte) = @_; |
| 143 |
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; |
| 149 |
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 |
| 186 |
|
| 187 |
Helper metod to set or get PC for current architecture |
| 188 |
|
| 189 |
=cut |
| 190 |
|
| 191 |
sub cpu_PC { |
| 192 |
my ( $self, $addr ) = @_; |
| 193 |
if ( defined($addr) ) { |
| 194 |
$PC = $addr; |
| 195 |
warn sprintf("running from PC %04x\n", $PC); |
| 196 |
}; |
| 197 |
return $PC; |
| 198 |
} |
| 199 |
|
| 200 |
=head1 SEE ALSO |
| 201 |
|
| 202 |
L<VRac>, L<Screen>, L<Z80> |
| 203 |
|
| 204 |
=head1 AUTHOR |
| 205 |
|
| 206 |
Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |
| 207 |
|
| 208 |
Based on Galaxy Win emulator L<http://emulator.galaksija.org/> |
| 209 |
|
| 210 |
=head1 BUGS |
| 211 |
|
| 212 |
=head1 ACKNOWLEDGEMENTS |
| 213 |
|
| 214 |
See also L<> which is source of all |
| 215 |
info about this machine (and even hardware implementation from 2007). |
| 216 |
|
| 217 |
=head1 COPYRIGHT & LICENSE |
| 218 |
|
| 219 |
Copyright 2007 Dobrica Pavlinusic, All Rights Reserved. |
| 220 |
|
| 221 |
This program is free software; you can redistribute it and/or modify it |
| 222 |
under the same terms as Perl itself. |
| 223 |
|
| 224 |
=cut |
| 225 |
|
| 226 |
1; # End of Galaksija |
Parent Directory
| 
Revision Log