3 |
use warnings; |
use warnings; |
4 |
use strict; |
use strict; |
5 |
|
|
6 |
use Carp; |
use Carp qw/confess/; |
7 |
use lib './lib'; |
use lib './lib'; |
8 |
#use Time::HiRes qw(time); |
#use Time::HiRes qw(time); |
9 |
use File::Slurp; |
use File::Slurp; |
10 |
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use Data::Dump qw/dump/; |
11 |
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use M6502; |
12 |
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|
13 |
use base qw(Class::Accessor M6502 Screen); |
use base qw(Class::Accessor M6502 Screen Prefs Tape); |
14 |
__PACKAGE__->mk_accessors(qw(debug trace run_for mem_dump trace)); |
__PACKAGE__->mk_accessors(qw(booted)); |
15 |
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|
16 |
=head1 NAME |
=head1 NAME |
17 |
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19 |
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20 |
=head1 VERSION |
=head1 VERSION |
21 |
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22 |
Version 0.02 |
Version 0.04 |
23 |
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24 |
=cut |
=cut |
25 |
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|
26 |
our $VERSION = '0.02'; |
our $VERSION = '0.04'; |
27 |
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|
28 |
=head1 SUMMARY |
=head1 SUMMARY |
29 |
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|
31 |
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32 |
=cut |
=cut |
33 |
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34 |
=head2 init |
=head1 FUNCTIONS |
35 |
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|
36 |
Start emulator |
=head2 boot |
37 |
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|
38 |
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Start emulator, open L<Screen>, load initial ROM images, and render memory |
39 |
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|
40 |
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my $emu = Orao->new({}); |
41 |
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$emu->boot; |
42 |
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|
43 |
=cut |
=cut |
44 |
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|
45 |
sub init { |
our $emu; |
46 |
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47 |
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select(STDERR); $| = 1; |
48 |
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|
49 |
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sub boot { |
50 |
my $self = shift; |
my $self = shift; |
51 |
warn "call upstream init\n"; |
warn "Orao calling upstream init\n"; |
52 |
$self->SUPER::init( @_ ); |
$self->SUPER::init( |
53 |
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read => sub { $self->read( @_ ) }, |
54 |
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write => sub { $self->write( @_ ) }, |
55 |
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); |
56 |
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57 |
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warn "Orao $Orao::VERSION emulation starting\n"; |
58 |
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|
59 |
warn "staring Orao $ORAO::VERSION emulation\n"; |
warn "emulating ", $#mem, " bytes of memory\n"; |
60 |
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|
61 |
$self->open_screen; |
$self->open_screen; |
62 |
$self->load_rom; |
$self->load_rom({ |
63 |
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0x1000 => 'dump/SCRINV.BIN', |
64 |
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# should be 0x6000, but oraoemu has 2 byte prefix |
65 |
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0x5FFE => 'dump/screen.dmp', |
66 |
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# 0xC000 => 'rom/BAS12.ROM', |
67 |
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# 0xE000 => 'rom/CRT12.ROM', |
68 |
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0xC000 => 'rom/BAS13.ROM', |
69 |
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0xE000 => 'rom/CRT13.ROM', |
70 |
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}); |
71 |
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72 |
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# $PC = 0xDD11; # BC |
73 |
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# $PC = 0xC274; # MC |
74 |
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75 |
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$PC = 0xff89; |
76 |
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77 |
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$emu = $self; |
78 |
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79 |
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# $self->prompt( 0x1000 ); |
80 |
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81 |
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my ( $trace, $debug ) = ( $self->trace, $self->debug ); |
82 |
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$self->trace( 0 ); |
83 |
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$self->debug( 0 ); |
84 |
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85 |
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warn "rendering video memory\n"; |
86 |
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$self->render_vram( @mem[ 0x6000 .. 0x7fff ] ); |
87 |
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88 |
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if ( $self->show_mem ) { |
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90 |
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warn "rendering memory map\n"; |
91 |
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92 |
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$self->render_mem( @mem ); |
93 |
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94 |
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my @mmap = ( |
95 |
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0x0000, 0x03FF, 'nulti blok', |
96 |
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0x0400, 0x5FFF, 'korisnički RAM (23K)', |
97 |
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0x6000, 0x7FFF, 'video RAM', |
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0x8000, 0x9FFF, 'sistemske lokacije', |
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0xA000, 0xAFFF, 'ekstenzija', |
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0xB000, 0xBFFF, 'DOS', |
101 |
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0xC000, 0xDFFF, 'BASIC ROM', |
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0xE000, 0xFFFF, 'sistemski ROM', |
103 |
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); |
104 |
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105 |
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} |
106 |
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$self->sync; |
107 |
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$self->trace( $trace ); |
108 |
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$self->debug( $debug ); |
109 |
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110 |
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#( $A, $P, $X, $Y, $S, $IPeriod ) = ( 1, 2, 3, 4, 5, 6 ); |
111 |
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112 |
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warn "Orao boot finished", |
113 |
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$self->trace ? ' trace' : '', |
114 |
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$self->debug ? ' debug' : '', |
115 |
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"\n"; |
116 |
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117 |
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M6502::reset(); |
118 |
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119 |
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$self->booted( 1 ); |
120 |
} |
} |
121 |
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122 |
my $loaded_files = { |
=head2 run |
123 |
0xC000 => 'rom/BAS12.ROM', |
|
124 |
0xE000 => 'rom/CRT12.ROM', |
Run interactive emulation loop |
125 |
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126 |
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$emu->run; |
127 |
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128 |
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=cut |
129 |
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130 |
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sub run { |
131 |
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my $self = shift; |
132 |
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133 |
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$self->boot if ( ! $self->booted ); |
134 |
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135 |
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$self->load_tape( '../oraoigre/bdash.tap' ); |
136 |
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137 |
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$self->loop; |
138 |
}; |
}; |
139 |
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140 |
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=head1 Helper functions |
141 |
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142 |
=head2 load_rom |
=head2 load_rom |
143 |
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144 |
called to init memory and load initial rom images |
called to init memory and load initial rom images |
145 |
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|
146 |
$orao->load_rom; |
$emu->load_rom; |
147 |
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148 |
=cut |
=cut |
149 |
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150 |
sub load_rom { |
sub load_rom { |
151 |
my ($self) = @_; |
my ($self, $loaded_files) = @_; |
152 |
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|
153 |
#my $time_base = time(); |
#my $time_base = time(); |
154 |
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|
155 |
foreach my $addr ( sort keys %$loaded_files ) { |
foreach my $addr ( sort keys %$loaded_files ) { |
156 |
my $path = $loaded_files->{$addr}; |
my $path = $loaded_files->{$addr}; |
157 |
printf "loading '%s' at %04x\n", $path, $addr; |
$self->load_image( $path, $addr ); |
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$self->load_oraoemu( $path, $addr ); |
|
158 |
} |
} |
159 |
} |
} |
160 |
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161 |
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# write chunk directly into memory, updateing vram if needed |
162 |
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sub _write_chunk { |
163 |
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my $self = shift; |
164 |
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my ( $addr, $chunk ) = @_; |
165 |
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$self->write_chunk( $addr, $chunk ); |
166 |
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my $end = $addr + length($chunk); |
167 |
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my ( $f, $t ) = ( 0x6000, 0x7fff ); |
168 |
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169 |
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if ( $end < $f || $addr >= $t ) { |
170 |
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warn "skip vram update\n"; |
171 |
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return; |
172 |
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}; |
173 |
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174 |
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$f = $addr if ( $addr > $f ); |
175 |
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$t = $end if ( $end < $t ); |
176 |
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177 |
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warn sprintf("refresh video ram %04x-%04x\n", $f, $t); |
178 |
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$self->render_vram( @mem[ 0x6000 .. 0x7fff ] ); |
179 |
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$self->render_mem( @mem ) if $self->show_mem; |
180 |
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} |
181 |
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182 |
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=head2 load_image |
183 |
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184 |
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Load binary files, ROM images and Orao Emulator files |
185 |
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186 |
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$emu->load_image( '/path/to/file', 0x1000 ); |
187 |
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|
188 |
=head2 load_oraoemu |
Returns true on success. |
189 |
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|
190 |
=cut |
=cut |
191 |
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|
192 |
sub load_oraoemu { |
sub load_image { |
193 |
my $self = shift; |
my $self = shift; |
194 |
my ( $path, $addr ) = @_; |
my ( $path, $addr ) = @_; |
195 |
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|
196 |
my $size = -s $path || die "no size for $path: $!"; |
if ( ! -e $path ) { |
197 |
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warn "ERROR: file $path doesn't exist\n"; |
198 |
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return; |
199 |
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} |
200 |
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201 |
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my $size = -s $path || confess "no size for $path: $!"; |
202 |
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203 |
my $buff = read_file( $path ); |
my $buff = read_file( $path ); |
204 |
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|
205 |
if ( $size == 65538 ) { |
if ( $size == 65538 ) { |
206 |
$addr = 0; |
$addr = 0; |
207 |
printf "loading oraoemu 64k dump %s at %04x - %04x %02x\n", $path, $addr, $addr+$size, $size; |
warn sprintf "loading oraoemu 64k dump %s at %04x - %04x %02x\n", $path, $addr, $addr+$size-1, $size; |
208 |
$self->write_chunk( $addr, substr($buff,2) ); |
$self->_write_chunk( $addr, substr($buff,2) ); |
209 |
return; |
return 1; |
210 |
} elsif ( $size == 32800 ) { |
} elsif ( $size == 32800 ) { |
211 |
$addr = 0; |
$addr = 0; |
212 |
printf "loading oraoemu 1.3 dump %s at %04x - %04x %02x\n", $path, $addr, $addr+$size, $size; |
warn sprintf "loading oraoemu 1.3 dump %s at %04x - %04x %02x\n", $path, $addr, $addr+$size-1, $size; |
213 |
#$self->write_chunk( $addr, substr($buff,0x20) ); |
$self->_write_chunk( $addr, substr($buff,0x20) ); |
214 |
$self->poke_code( $addr, map { ord($_) } split(//,substr($buff,0x20)) ); |
return 1; |
|
return; |
|
215 |
} |
} |
216 |
printf "loading %s at %04x - %04x %02x\n", $path, $addr, $addr+$size, $size; |
printf "loading %s at %04x - %04x %02x\n", $path, $addr, $addr+$size-1, $size; |
217 |
return $self->write_chunk( $addr, $buff ); |
$self->_write_chunk( $addr, $buff ); |
218 |
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return 1; |
219 |
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|
220 |
my $chunk; |
my $chunk; |
221 |
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|
231 |
$pos += 4; |
$pos += 4; |
232 |
} |
} |
233 |
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|
234 |
$self->write_chunk( $addr, $chunk ); |
$self->_write_chunk( $addr, $chunk ); |
235 |
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236 |
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return 1; |
237 |
}; |
}; |
238 |
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|
239 |
=head2 save_dump |
=head2 save_dump |
240 |
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|
241 |
$orao->save_dump( 'filename', $from, $to ); |
$emu->save_dump( 'filename', $from, $to ); |
242 |
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|
243 |
=cut |
=cut |
244 |
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|
255 |
close($fh); |
close($fh); |
256 |
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|
257 |
my $size = -s $path; |
my $size = -s $path; |
258 |
printf "saved %s %d %x bytes\n", $path, $size, $size; |
warn sprintf "saved %s %d %x bytes\n", $path, $size, $size; |
259 |
} |
} |
260 |
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|
261 |
=head2 hexdump |
=head2 hexdump |
262 |
|
|
263 |
$orao->hexdump( $address ); |
$emu->hexdump( $address ); |
264 |
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|
265 |
=cut |
=cut |
266 |
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|
270 |
return sprintf(" %04x %s\n", $a, |
return sprintf(" %04x %s\n", $a, |
271 |
join(" ", |
join(" ", |
272 |
map { |
map { |
273 |
sprintf( "%02x", $_ ) |
if ( defined($_) ) { |
274 |
} $self->ram( $a, $a+8 ) |
sprintf( "%02x", $_ ) |
275 |
|
} else { |
276 |
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' ' |
277 |
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} |
278 |
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} @mem[ $a .. $a+8 ] |
279 |
) |
) |
280 |
); |
); |
281 |
} |
} |
282 |
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|
283 |
|
=head1 Memory management |
284 |
|
|
285 |
|
Orao implements all I/O using mmap addresses. This was main reason why |
286 |
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L<Acme::6502> was just too slow to handle it. |
287 |
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|
288 |
|
=cut |
289 |
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|
290 |
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=head2 read |
291 |
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|
292 |
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Read from memory |
293 |
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|
294 |
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$byte = read( $address ); |
295 |
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|
296 |
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=cut |
297 |
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|
298 |
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my $keyboard_none = 255; |
299 |
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|
300 |
|
my $keyboard = { |
301 |
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0x87FC => { |
302 |
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'right' => 16, |
303 |
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'down' => 128, |
304 |
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'up' => 192, |
305 |
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'left' => 224, |
306 |
|
'backspace' => 224, |
307 |
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}, |
308 |
|
0x87FD => sub { |
309 |
|
my ( $self, $key ) = @_; |
310 |
|
if ( $key eq 'return' ) { |
311 |
|
M6502::_write( 0xfc, 13 ); |
312 |
|
warn "return\n"; |
313 |
|
return 0; |
314 |
|
} elsif ( $key =~ m/ ctrl/ || $self->key_down( 'left ctrl' ) || $self->key_down( 'right ctrl' ) ) { |
315 |
|
warn "ctrl\n"; |
316 |
|
return 16; |
317 |
|
} |
318 |
|
return $keyboard_none; |
319 |
|
}, |
320 |
|
0x87FA => { |
321 |
|
'f4' => 16, |
322 |
|
'f3' => 128, |
323 |
|
'f2' => 192, |
324 |
|
'f1' => 224, |
325 |
|
}, |
326 |
|
0x87FB => sub { |
327 |
|
my ( $self, $key ) = @_; |
328 |
|
if ( $key eq 'space' ) { |
329 |
|
return 32; |
330 |
|
} elsif ( $self->key_down( 'left shift' ) || $self->key_down( 'right shift' ) ) { |
331 |
|
warn "shift\n"; |
332 |
|
return 16; |
333 |
|
# } elsif ( $self->tape ) { |
334 |
|
# warn "has tape!"; |
335 |
|
# return 0; |
336 |
|
} |
337 |
|
return $keyboard_none; |
338 |
|
}, |
339 |
|
0x87F6 => { |
340 |
|
'6' => 16, |
341 |
|
't' => 128, |
342 |
|
'y' => 192, # hr: z |
343 |
|
'r' => 224, |
344 |
|
}, |
345 |
|
0x87F7 => { |
346 |
|
'5' => 32, |
347 |
|
'4' => 16, |
348 |
|
}, |
349 |
|
0x87EE => { |
350 |
|
'7' => 16, |
351 |
|
'u' => 128, |
352 |
|
'i' => 192, |
353 |
|
'o' => 224, |
354 |
|
}, |
355 |
|
0x87EF => { |
356 |
|
'8' => 32, |
357 |
|
'9' => 16, |
358 |
|
}, |
359 |
|
0x87DE => { |
360 |
|
'1' => 16, |
361 |
|
'w' => 128, |
362 |
|
'q' => 192, |
363 |
|
'e' => 224, |
364 |
|
}, |
365 |
|
0x87DF => { |
366 |
|
'2' => 32, |
367 |
|
'3' => 16, |
368 |
|
}, |
369 |
|
0x87BE => { |
370 |
|
'm' => 16, |
371 |
|
'k' => 128, |
372 |
|
'j' => 192, |
373 |
|
'l' => 224, |
374 |
|
}, |
375 |
|
0x87BF => { |
376 |
|
',' => 32, # < |
377 |
|
'.' => 16, # > |
378 |
|
}, |
379 |
|
0x877E => { |
380 |
|
'z' => 16, # hr:y |
381 |
|
's' => 128, |
382 |
|
'a' => 192, |
383 |
|
'd' => 224, |
384 |
|
}, |
385 |
|
0x877F => { |
386 |
|
'x' => 32, |
387 |
|
'c' => 16, |
388 |
|
}, |
389 |
|
0x86FE => { |
390 |
|
'n' => 16, |
391 |
|
'g' => 128, |
392 |
|
'h' => 192, |
393 |
|
'f' => 224, |
394 |
|
}, |
395 |
|
0x86FF => { |
396 |
|
'b' => 32, |
397 |
|
'v' => 16, |
398 |
|
}, |
399 |
|
0x85FE => { |
400 |
|
'<' => 16, # : |
401 |
|
'\\' => 128, # ¾ |
402 |
|
'\'' => 192, # ę |
403 |
|
';' => 224, # č |
404 |
|
}, |
405 |
|
0x85FF => { |
406 |
|
'/' => 32, |
407 |
|
'f11' => 16, # ^ |
408 |
|
}, |
409 |
|
0x83FE => { |
410 |
|
'f12' => 16, # ; |
411 |
|
'[' => 128, # ¹ |
412 |
|
']' => 192, # š |
413 |
|
'p' => 224, |
414 |
|
}, |
415 |
|
0x83FF => { |
416 |
|
'-' => 32, |
417 |
|
'0' => 16, |
418 |
|
}, |
419 |
|
}; |
420 |
|
|
421 |
|
sub read { |
422 |
|
my $self = shift; |
423 |
|
my ($addr) = @_; |
424 |
|
my $byte = $mem[$addr]; |
425 |
|
confess sprintf("can't find memory at address %04x",$addr) unless defined($byte); |
426 |
|
warn sprintf("# Orao::read(%04x) = %02x\n", $addr, $byte) if $self->trace; |
427 |
|
|
428 |
|
# keyboard |
429 |
|
|
430 |
|
if ( defined( $keyboard->{$addr} ) ) { |
431 |
|
warn sprintf("keyboard port: %04x\n",$addr) if $self->trace; |
432 |
|
my $key = $self->key_pressed; |
433 |
|
if ( defined($key) ) { |
434 |
|
my $ret = $keyboard_none; |
435 |
|
my $r = $keyboard->{$addr} || confess "no definition for keyboard port found"; |
436 |
|
if ( ref($r) eq 'CODE' ) { |
437 |
|
$ret = $r->($self, $key); |
438 |
|
} elsif ( defined($r->{$key}) ) { |
439 |
|
$ret = $r->{$key}; |
440 |
|
if ( ref($ret) eq 'CODE' ) { |
441 |
|
$ret = $ret->($self); |
442 |
|
} |
443 |
|
} else { |
444 |
|
warn sprintf("keyboard port: %04x unknown key: '%s'\n", $addr, $key) if $debug; |
445 |
|
} |
446 |
|
warn sprintf("keyboard port: %04x key:%s code:%d\n",$addr,$key,$ret) if ( $ret != $keyboard_none ); |
447 |
|
return $ret; |
448 |
|
} |
449 |
|
return $keyboard_none; |
450 |
|
} |
451 |
|
|
452 |
|
if ( $addr == 0x87ff ) { |
453 |
|
return $self->read_tape; |
454 |
|
} |
455 |
|
|
456 |
|
$self->mmap_pixel( $addr, 0, $byte, 0 ); |
457 |
|
return $byte; |
458 |
|
} |
459 |
|
|
460 |
|
=head2 write |
461 |
|
|
462 |
|
Write into emory |
463 |
|
|
464 |
|
write( $address, $byte ); |
465 |
|
|
466 |
|
=cut |
467 |
|
|
468 |
|
sub write { |
469 |
|
my $self = shift; |
470 |
|
my ($addr,$byte) = @_; |
471 |
|
warn sprintf("# Orao::write(%04x,%02x)\n", $addr, $byte) if $self->trace; |
472 |
|
|
473 |
|
if ( $addr == 0x8800 ) { |
474 |
|
warn sprintf "sound ignored: %x\n", $byte; |
475 |
|
} |
476 |
|
|
477 |
|
if ( $addr > 0xafff ) { |
478 |
|
confess sprintf "write access 0x%04x > 0xafff aborting\n", $addr; |
479 |
|
} |
480 |
|
|
481 |
|
$self->mmap_pixel( $addr, $byte, 0, 0 ); |
482 |
|
|
483 |
|
$mem[$addr] = $byte; |
484 |
|
return; |
485 |
|
} |
486 |
|
|
487 |
|
=head1 Command Line |
488 |
|
|
489 |
|
Command-line debugging intrerface is implemented for communication with |
490 |
|
emulated device |
491 |
|
|
492 |
=head2 prompt |
=head2 prompt |
493 |
|
|
494 |
$orao->prompt( $address, $last_command ); |
my ( $entered_line, @p ) = $emu->prompt( $address, $last_command ); |
495 |
|
|
496 |
=cut |
=cut |
497 |
|
|
498 |
|
my $last = 'r 1'; |
499 |
|
|
500 |
sub prompt { |
sub prompt { |
501 |
my $self = shift; |
my $self = shift; |
502 |
|
$self->app->sync; |
503 |
my $a = shift; |
my $a = shift; |
|
my $last = shift; |
|
504 |
print $self->hexdump( $a ), |
print $self->hexdump( $a ), |
505 |
$last ? "[$last] " : '', |
$last ? "[$last] " : '', |
506 |
"> "; |
"> "; |
507 |
my $in = <STDIN>; |
my $in = <STDIN>; |
508 |
chomp($in); |
chomp($in); |
509 |
|
warn "## prompt got: $in\n" if $self->debug; |
510 |
$in ||= $last; |
$in ||= $last; |
511 |
$last = $in; |
$last = $in; |
512 |
return split(/\s+/, $in) if $in; |
return ( $in, split(/\s+/, $in) ) if $in; |
513 |
} |
} |
514 |
|
|
515 |
|
=head2 cli |
516 |
|
|
517 |
|
$emu->cli(); |
518 |
|
|
519 |
|
=cut |
520 |
|
|
521 |
|
my $show_R = 0; |
522 |
|
|
523 |
|
sub cli { |
524 |
|
my $self = shift; |
525 |
|
my $a = $PC || confess "no pc?"; |
526 |
|
my $run_for = 0; |
527 |
|
warn $self->dump_R() if $show_R; |
528 |
|
while ( my ($line, @v) = $self->prompt( $a, $last ) ) { |
529 |
|
my $c = shift @v; |
530 |
|
next unless defined($c); |
531 |
|
my $v = shift @v; |
532 |
|
$v = hex($v) if $v && $v =~ m/^[0-9a-f]+$/; |
533 |
|
@v = map { hex($_) } @v; |
534 |
|
printf "## a: %04x parsed cli: c:%s v:%s %s\n", $a, $c, ($v || 'undef'), join(",",@v) if $self->debug; |
535 |
|
if ( $c =~ m/^[qx]/i ) { |
536 |
|
exit; |
537 |
|
} elsif ( $c eq '?' ) { |
538 |
|
my $t = $self->trace ? 'on' : 'off' ; |
539 |
|
my $d = $self->debug ? 'on' : 'off' ; |
540 |
|
warn <<__USAGE__; |
541 |
|
Usage: |
542 |
|
|
543 |
|
x|q\t\texit |
544 |
|
e 6000 6010\tdump memory, +/- to walk forward/backward |
545 |
|
m 1000 ff 00\tput ff 00 on 1000 |
546 |
|
j|u 1000\t\tjump (change pc) |
547 |
|
r 42\t\trun 42 instruction opcodes |
548 |
|
t\t\ttrace [$t] |
549 |
|
d\t\tdebug [$d] |
550 |
|
|
551 |
|
__USAGE__ |
552 |
|
warn $self->dump_R; |
553 |
|
$last = ''; |
554 |
|
} elsif ( $c =~ m/^e/i ) { |
555 |
|
$a = $v if defined($v); |
556 |
|
my $to = shift @v; |
557 |
|
$to = $a + 32 if ( ! $to || $to <= $a ); |
558 |
|
$to = 0xffff if ( $to > 0xffff ); |
559 |
|
my $lines = int( ($to - $a + 8) / 8 ); |
560 |
|
printf "## e %04x %04x (%d bytes) lines: %d\n", $a, $to, ($to-$a), $lines; |
561 |
|
while ( --$lines ) { |
562 |
|
print $self->hexdump( $a ); |
563 |
|
$a += 8; |
564 |
|
} |
565 |
|
$last = '+'; |
566 |
|
$show_R = 0; |
567 |
|
} elsif ( $c =~ m/^\+/ ) { |
568 |
|
$a += 8; |
569 |
|
$show_R = 0; |
570 |
|
} elsif ( $c =~ m/^\-/ ) { |
571 |
|
$a -= 8; |
572 |
|
$show_R = 0; |
573 |
|
} elsif ( $c =~ m/^m/i ) { |
574 |
|
$a = $v if defined($v); |
575 |
|
$self->poke_code( $a, @v ); |
576 |
|
printf "poke %d bytes at %04x\n", $#v + 1, $a; |
577 |
|
$last = '+'; |
578 |
|
$show_R = 0; |
579 |
|
} elsif ( $c =~ m/^l/i ) { |
580 |
|
my $to = shift @v || 0x1000; |
581 |
|
$a = $to; |
582 |
|
$self->load_image( $v, $a ); |
583 |
|
$last = ''; |
584 |
|
} elsif ( $c =~ m/^s/i ) { |
585 |
|
$self->save_dump( $v || 'mem.dump', @v ); |
586 |
|
$last = ''; |
587 |
|
} elsif ( $c =~ m/^re/i ) { # reset |
588 |
|
M6502::reset(); |
589 |
|
$last = 'r 1'; |
590 |
|
} elsif ( $c =~ m/^r/i ) { # run |
591 |
|
$run_for = $v || 1; |
592 |
|
print "run_for $run_for instructions\n"; |
593 |
|
$show_R = 1; |
594 |
|
last; |
595 |
|
} elsif ( $c =~ m/^(u|j)/i ) { |
596 |
|
my $to = $v || $a; |
597 |
|
printf "set pc to %04x\n", $to; |
598 |
|
$PC = $to; # remember for restart |
599 |
|
$run_for = 1; |
600 |
|
$last = "r $run_for"; |
601 |
|
$show_R = 1; |
602 |
|
last; |
603 |
|
} elsif ( $c =~ m/^tape/ ) { |
604 |
|
if ( $c =~ m/rate/ ) { |
605 |
|
$self->tape_rate( $v ); |
606 |
|
warn "will read table with rate $v\n"; |
607 |
|
} elsif ( ! $v ) { |
608 |
|
warn "ERROR: please specify tape name!\n"; |
609 |
|
} elsif ( ! -e $v ) { |
610 |
|
warn "ERROR: tape $v: $!\n"; |
611 |
|
} else { |
612 |
|
$self->load_tape( $v ); |
613 |
|
} |
614 |
|
$last = ''; |
615 |
|
} elsif ( $c =~ m/^t/i ) { |
616 |
|
$self->trace( not $self->trace ); |
617 |
|
print "trace ", $self->trace ? 'on' : 'off', "\n"; |
618 |
|
$last = ''; |
619 |
|
} elsif ( $c =~ m/^d/i ) { |
620 |
|
$self->debug( not $self->debug ); |
621 |
|
print "debug ", $self->debug ? 'on' : 'off', "\n"; |
622 |
|
$last = ''; |
623 |
|
} else { |
624 |
|
warn "# ignored $line\n" if ($line); |
625 |
|
$last = ''; |
626 |
|
} |
627 |
|
} |
628 |
|
|
629 |
|
return $run_for; |
630 |
|
} |
631 |
|
|
632 |
=head1 AUTHOR |
=head1 AUTHOR |
633 |
|
|