6 |
use Carp qw/confess/; |
use Carp qw/confess/; |
7 |
use File::Slurp; |
use File::Slurp; |
8 |
use Data::Dump qw/dump/; |
use Data::Dump qw/dump/; |
9 |
use Z80 qw'@mem'; |
use Z80; # import |
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|
11 |
use base qw(Class::Accessor VRac Z80 Screen Prefs); |
use base qw(Class::Accessor VRac Z80 Screen Prefs); |
12 |
__PACKAGE__->mk_accessors(qw(booted)); |
__PACKAGE__->mk_accessors(qw(booted)); |
39 |
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40 |
sub run { |
sub run { |
41 |
my $self = shift; |
my $self = shift; |
42 |
warn "Galaksija calling upstream init\n"; |
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warn "Galaksija $Galaksija::VERSION emulation starting\n"; |
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45 |
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$self->show_mem( 1 ); |
46 |
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#$self->trace( 1 ); |
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48 |
$self->SUPER::init( |
$self->SUPER::init( |
49 |
read => sub { $self->read( @_ ) }, |
read => sub { $self->read( @_ ) }, |
50 |
write => sub { $self->write( @_ ) }, |
write => sub { $self->write( @_ ) }, |
51 |
); |
); |
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warn "Galaksija $Galaksija::VERSION emulation starting\n"; |
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warn "emulating ", $#mem, " bytes of memory\n"; |
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53 |
for my $a ( 0x1000 .. 0x2000 ) { |
for my $a ( 0x1000 .. 0x2000 ) { |
54 |
$mem[$a] = 0xff; |
$mem[$a] = 0xff; |
55 |
} |
} |
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 ); |
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 ); |
90 |
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|
91 |
Z80::reset(); |
Z80::reset(); |
92 |
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93 |
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my $hor_pos = 0; |
94 |
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|
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", $self->hexdump( 0x2ba8 ); |
99 |
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$hor_pos = $mem[ 0x2ba8 ]; |
100 |
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} |
101 |
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$self->render_vram; |
102 |
}); |
}); |
103 |
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|
104 |
} |
} |
106 |
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|
107 |
=head1 Memory management |
=head1 Memory management |
108 |
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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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109 |
=cut |
=cut |
110 |
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111 |
=head2 read |
=head2 read |
116 |
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|
117 |
=cut |
=cut |
118 |
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my $keyboard_none = 255; |
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|
119 |
my $keyboard = {}; |
my $keyboard = {}; |
120 |
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|
121 |
sub read { |
sub read { |
125 |
confess sprintf("can't find memory at address %04x",$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 $self->trace; |
127 |
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128 |
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$self->mmap_pixel( $addr, 0, $byte, 0 ) if $self->show_mem; |
129 |
return $byte; |
return $byte; |
130 |
} |
} |
131 |
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|
142 |
my ($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 |
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145 |
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return if ( $addr > 0x4000 ); |
146 |
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147 |
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$self->mmap_pixel( $addr, $byte, 0, 0 ) if $self->show_mem; |
148 |
$mem[$addr] = $byte; |
$mem[$addr] = $byte; |
149 |
return; |
return; |
150 |
} |
} |
151 |
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152 |
|
=head1 Architecture specific |
153 |
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154 |
|
=head2 render_vram |
155 |
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156 |
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Simple hex dumper of text buffer |
157 |
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158 |
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=cut |
159 |
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160 |
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my $last_dump = ''; |
161 |
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162 |
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sub render_vram { |
163 |
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my $self = shift; |
164 |
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165 |
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my $addr = 0x2800; |
166 |
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167 |
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my $dump; |
168 |
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169 |
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for my $y ( 0 .. 15 ) { |
170 |
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# $dump .= sprintf "%2d: %s\n",$y, join('', map { sprintf("%02x ",$_) } @mem[ $addr .. $addr+31 ] ); |
171 |
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$dump .= sprintf "%2d: %s\n",$y, join('', map { chr( $_ ) } @mem[ $addr .. $addr+31 ] ); |
172 |
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$addr += 32; |
173 |
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} |
174 |
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175 |
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if ( $mem[ 0x2bb0 ] ) { |
176 |
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warn "scroll", $self->hexdump( 0x2bb0 ); |
177 |
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} |
178 |
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|
179 |
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if ( $dump ne $last_dump ) { |
180 |
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print $dump; |
181 |
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$last_dump = $dump; |
182 |
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} |
183 |
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} |
184 |
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185 |
|
=head2 cpu_PC |
186 |
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187 |
|
Helper metod to set or get PC for current architecture |
188 |
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189 |
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=cut |
190 |
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191 |
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sub cpu_PC { |
192 |
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my ( $self, $addr ) = @_; |
193 |
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if ( defined($addr) ) { |
194 |
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$PC = $addr; |
195 |
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warn sprintf("running from PC %04x\n", $PC); |
196 |
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}; |
197 |
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return $PC; |
198 |
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} |
199 |
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200 |
|
=head1 SEE ALSO |
201 |
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202 |
|
L<VRac>, L<Screen>, L<Z80> |
203 |
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204 |
=head1 AUTHOR |
=head1 AUTHOR |
205 |
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|
206 |
Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |
Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |
207 |
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208 |
|
Based on Galaxy Win emulator L<http://emulator.galaksija.org/> |
209 |
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|
210 |
=head1 BUGS |
=head1 BUGS |
211 |
|
|
212 |
=head1 ACKNOWLEDGEMENTS |
=head1 ACKNOWLEDGEMENTS |