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 |
use Data::Dump qw/dump/; |
use Data::Dump qw/dump/; |
11 |
|
use List::Util qw/first/; |
12 |
use M6502; |
use M6502; |
13 |
|
|
14 |
use base qw(Class::Accessor M6502 Screen); |
use base qw(Class::Accessor M6502 Screen Prefs); |
15 |
__PACKAGE__->mk_accessors(qw(debug trace run_for mem_dump trace)); |
__PACKAGE__->mk_accessors(qw(booted)); |
16 |
|
|
17 |
=head1 NAME |
=head1 NAME |
18 |
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|
20 |
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|
21 |
=head1 VERSION |
=head1 VERSION |
22 |
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|
23 |
Version 0.02 |
Version 0.04 |
24 |
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|
25 |
=cut |
=cut |
26 |
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|
27 |
our $VERSION = '0.02'; |
our $VERSION = '0.04'; |
28 |
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|
29 |
=head1 SUMMARY |
=head1 SUMMARY |
30 |
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32 |
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|
33 |
=cut |
=cut |
34 |
|
|
35 |
=head2 init |
my @kbd_ports = ( |
36 |
|
0x87FC,0x87FD,0x87FA,0x87FB,0x87F6,0x87F7, |
37 |
|
0x87EE,0x87EF,0x87DE,0x87DF,0x87BE,0x87BF, |
38 |
|
0x877E,0x877F,0x86FE,0x86FF,0x85FE,0x85FF, |
39 |
|
0x83FE,0x83FF, |
40 |
|
); |
41 |
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|
42 |
Start emulator |
=head1 FUNCTIONS |
43 |
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|
44 |
|
=head2 boot |
45 |
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|
46 |
|
Start emulator, open L<Screen>, load initial ROM images, and render memory |
47 |
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|
48 |
|
my $orao = Orao->new({}); |
49 |
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$orao->boot; |
50 |
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|
51 |
=cut |
=cut |
52 |
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|
53 |
our $orao; |
our $orao; |
54 |
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|
55 |
sub init { |
select(STDERR); $| = 1; |
56 |
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|
57 |
|
sub boot { |
58 |
my $self = shift; |
my $self = shift; |
59 |
warn "Orao calling upstream init\n"; |
warn "Orao calling upstream init\n"; |
60 |
$self->SUPER::init( $self, @_ ); |
$self->SUPER::init( |
61 |
|
read => sub { $self->read( @_ ) }, |
62 |
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write => sub { $self->write( @_ ) }, |
63 |
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); |
64 |
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|
65 |
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warn "Orao $Orao::VERSION emulation starting\n"; |
66 |
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|
67 |
warn "staring Orao $Orao::VERSION emulation\n"; |
warn "emulating ", $#mem, " bytes of memory\n"; |
68 |
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|
69 |
$self->open_screen; |
$self->open_screen; |
70 |
$self->load_rom({ |
$self->load_rom({ |
71 |
0x1000 => 'dump/SCRINV.BIN', |
0x1000 => 'dump/SCRINV.BIN', |
72 |
|
# should be 0x6000, but oraoemu has 2 byte prefix |
73 |
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0x5FFE => 'dump/screen.dmp', |
74 |
0xC000 => 'rom/BAS12.ROM', |
0xC000 => 'rom/BAS12.ROM', |
75 |
0xE000 => 'rom/CRT12.ROM', |
0xE000 => 'rom/CRT12.ROM', |
76 |
}); |
}); |
77 |
|
|
78 |
$self->load_oraoemu( 'dump/orao-1.2' ); |
# $PC = 0xDD11; # BC |
79 |
$self->load_oraoemu( 'dump/SCRINV.BIN' ); |
# $PC = 0xC274; # MC |
80 |
$PC = 0x1000; |
|
81 |
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$PC = 0xff89; |
82 |
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|
83 |
$orao = $self; |
$orao = $self; |
84 |
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|
85 |
# $self->prompt( 0x1000 ); |
# $self->prompt( 0x1000 ); |
86 |
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|
87 |
my $trace = $self->trace; |
my ( $trace, $debug ) = ( $self->trace, $self->debug ); |
88 |
$self->trace( 0 ); |
$self->trace( 0 ); |
89 |
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$self->debug( 0 ); |
90 |
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|
91 |
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$self->render( @mem[ 0x6000 .. 0x7fff ] ); |
92 |
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|
93 |
if ( $self->show_mem ) { |
if ( $self->show_mem ) { |
94 |
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|
95 |
warn "rendering memory map\n"; |
warn "rendering memory map\n"; |
96 |
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|
97 |
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$self->render_mem( @mem ); |
98 |
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|
99 |
my @mmap = ( |
my @mmap = ( |
100 |
0x0000, 0x03FF, 'nulti blok', |
0x0000, 0x03FF, 'nulti blok', |
101 |
0x0400, 0x5FFF, 'korisnički RAM (23K)', |
0x0400, 0x5FFF, 'korisnički RAM (23K)', |
107 |
0xE000, 0xFFFF, 'sistemski ROM', |
0xE000, 0xFFFF, 'sistemski ROM', |
108 |
); |
); |
109 |
|
|
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foreach my $i ( 0 .. $#mmap / 3 ) { |
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my $o = $i * 3; |
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my ( $from, $to, $desc ) = @mmap[$o,$o+1,$o+2]; |
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printf "%04x - %04x - %s\n", $from, $to, $desc; |
|
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for my $a ( $from .. $to ) { |
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if ( $a >= 0x6000 && $a < 0x8000 ) { |
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my $b = $self->read( $a ); |
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$self->vram( $a - 0x6000, $b ); |
|
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} else { |
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$self->read( $a ); |
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} |
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} |
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} |
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110 |
} else { |
} else { |
111 |
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|
112 |
warn "rendering video memory\n"; |
warn "rendering video memory\n"; |
113 |
for my $a ( 0x6000 .. 0x7fff ) { |
$self->render( @mem[ 0x6000 .. 0x7fff ] ); |
|
$self->vram( $a - 0x6000, $mem[$a] ); |
|
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} |
|
114 |
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|
115 |
} |
} |
116 |
$self->sync; |
$self->sync; |
117 |
$self->trace( $trace ); |
$self->trace( $trace ); |
118 |
|
$self->debug( $debug ); |
119 |
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|
120 |
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#( $A, $P, $X, $Y, $S, $IPeriod ) = ( 1, 2, 3, 4, 5, 6 ); |
121 |
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|
122 |
( $A, $P, $X, $Y, $S, $IPeriod ) = ( 1, 2, 3, 4, 5, 6 ); |
warn "Orao boot finished", |
123 |
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$self->trace ? ' trace' : '', |
124 |
|
$self->debug ? ' debug' : '', |
125 |
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"\n"; |
126 |
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|
127 |
warn "Orao init finished", $self->trace ? ' trace on' : '', "\n"; |
M6502::reset(); |
128 |
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|
129 |
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$self->booted( 1 ); |
130 |
} |
} |
131 |
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132 |
|
=head2 run |
133 |
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134 |
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Run interactive emulation loop |
135 |
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136 |
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$orao->run; |
137 |
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138 |
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=cut |
139 |
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140 |
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sub run { |
141 |
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my $self = shift; |
142 |
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143 |
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$self->show_mem( 1 ); |
144 |
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145 |
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$self->boot if ( ! $self->booted ); |
146 |
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$self->loop; |
147 |
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}; |
148 |
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|
149 |
|
=head1 Helper functions |
150 |
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|
151 |
=head2 load_rom |
=head2 load_rom |
152 |
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|
153 |
called to init memory and load initial rom images |
called to init memory and load initial rom images |
163 |
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|
164 |
foreach my $addr ( sort keys %$loaded_files ) { |
foreach my $addr ( sort keys %$loaded_files ) { |
165 |
my $path = $loaded_files->{$addr}; |
my $path = $loaded_files->{$addr}; |
166 |
$self->load_oraoemu( $path, $addr ); |
$self->load_image( $path, $addr ); |
167 |
} |
} |
168 |
} |
} |
169 |
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|
170 |
|
# write chunk directly into memory, updateing vram if needed |
171 |
|
sub _write_chunk { |
172 |
|
my $self = shift; |
173 |
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my ( $addr, $chunk ) = @_; |
174 |
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$self->write_chunk( $addr, $chunk ); |
175 |
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my $end = $addr + length($chunk); |
176 |
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my ( $f, $t ) = ( 0x6000, 0x7fff ); |
177 |
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178 |
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if ( $end < $f || $addr >= $t ) { |
179 |
|
warn "skip vram update\n"; |
180 |
|
return; |
181 |
|
}; |
182 |
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183 |
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$f = $addr if ( $addr > $f ); |
184 |
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$t = $end if ( $end < $t ); |
185 |
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186 |
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warn sprintf("refresh video ram %04x-%04x\n", $f, $t); |
187 |
|
# foreach my $a ( $f .. $t ) { |
188 |
|
# $self->vram( $a - 0x6000 , $mem[ $a ] ); |
189 |
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# } |
190 |
|
$self->render( @mem[ 0x6000 .. 0x7fff ] ); |
191 |
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$self->render_mem( @mem ) if $self->show_mem; |
192 |
|
} |
193 |
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|
194 |
=head2 load_oraoemu |
=head2 load_image |
195 |
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|
196 |
|
Load binary files, ROM images and Orao Emulator files |
197 |
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|
198 |
|
$orao->load_image( '/path/to/file', 0x1000 ); |
199 |
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|
200 |
|
Returns true on success. |
201 |
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|
202 |
=cut |
=cut |
203 |
|
|
204 |
sub load_oraoemu { |
sub load_image { |
205 |
my $self = shift; |
my $self = shift; |
206 |
my ( $path, $addr ) = @_; |
my ( $path, $addr ) = @_; |
207 |
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|
208 |
|
if ( ! -e $path ) { |
209 |
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warn "ERROR: file $path doesn't exist\n"; |
210 |
|
return; |
211 |
|
} |
212 |
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|
213 |
my $size = -s $path || confess "no size for $path: $!"; |
my $size = -s $path || confess "no size for $path: $!"; |
214 |
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|
215 |
my $buff = read_file( $path ); |
my $buff = read_file( $path ); |
217 |
if ( $size == 65538 ) { |
if ( $size == 65538 ) { |
218 |
$addr = 0; |
$addr = 0; |
219 |
warn sprintf "loading oraoemu 64k dump %s at %04x - %04x %02x\n", $path, $addr, $addr+$size-1, $size; |
warn sprintf "loading oraoemu 64k dump %s at %04x - %04x %02x\n", $path, $addr, $addr+$size-1, $size; |
220 |
$self->write_chunk( $addr, substr($buff,2) ); |
$self->_write_chunk( $addr, substr($buff,2) ); |
221 |
return; |
return 1; |
222 |
} elsif ( $size == 32800 ) { |
} elsif ( $size == 32800 ) { |
223 |
$addr = 0; |
$addr = 0; |
224 |
warn sprintf "loading oraoemu 1.3 dump %s at %04x - %04x %02x\n", $path, $addr, $addr+$size-1, $size; |
warn sprintf "loading oraoemu 1.3 dump %s at %04x - %04x %02x\n", $path, $addr, $addr+$size-1, $size; |
225 |
#$self->write_chunk( $addr, substr($buff,0x20) ); |
$self->_write_chunk( $addr, substr($buff,0x20) ); |
226 |
$self->poke_code( $addr, map { ord($_) } split(//,substr($buff,0x20)) ); |
return 1; |
|
return; |
|
227 |
} |
} |
228 |
printf "loading %s at %04x - %04x %02x\n", $path, $addr, $addr+$size-1, $size; |
printf "loading %s at %04x - %04x %02x\n", $path, $addr, $addr+$size-1, $size; |
229 |
return $self->poke_code( $addr, map { ord($_) } split(//,$buff) ); |
$self->_write_chunk( $addr, $buff ); |
230 |
return $self->write_chunk( $addr, $buff ); |
return 1; |
231 |
|
|
232 |
my $chunk; |
my $chunk; |
233 |
|
|
243 |
$pos += 4; |
$pos += 4; |
244 |
} |
} |
245 |
|
|
246 |
$self->write_chunk( $addr, $chunk ); |
$self->_write_chunk( $addr, $chunk ); |
247 |
|
|
248 |
|
return 1; |
249 |
}; |
}; |
250 |
|
|
251 |
=head2 save_dump |
=head2 save_dump |
282 |
return sprintf(" %04x %s\n", $a, |
return sprintf(" %04x %s\n", $a, |
283 |
join(" ", |
join(" ", |
284 |
map { |
map { |
285 |
sprintf( "%02x", $_ ) |
if ( defined($_) ) { |
286 |
} $self->ram( $a, $a+8 ) |
sprintf( "%02x", $_ ) |
287 |
|
} else { |
288 |
|
' ' |
289 |
|
} |
290 |
|
} @mem[ $a .. $a+8 ] |
291 |
) |
) |
292 |
); |
); |
293 |
} |
} |
294 |
|
|
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=head2 prompt |
|
|
|
|
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$orao->prompt( $address, $last_command ); |
|
|
|
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=cut |
|
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|
|
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sub prompt { |
|
|
my $self = shift; |
|
|
my $a = shift; |
|
|
my $last = shift; |
|
|
print STDERR $self->hexdump( $a ), |
|
|
$last ? "[$last] " : '', |
|
|
"> "; |
|
|
my $in = <STDIN>; |
|
|
chomp($in); |
|
|
$in ||= $last; |
|
|
$last = $in; |
|
|
return split(/\s+/, $in) if $in; |
|
|
} |
|
|
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|
295 |
=head1 Memory management |
=head1 Memory management |
296 |
|
|
297 |
Orao implements all I/O using mmap addresses. This was main reason why |
Orao implements all I/O using mmap addresses. This was main reason why |
307 |
|
|
308 |
=cut |
=cut |
309 |
|
|
310 |
|
my $keyboard = { |
311 |
|
0x87FC => { |
312 |
|
'right' => 16, |
313 |
|
'down' => 128, |
314 |
|
'up' => 192, |
315 |
|
'left' => 224, |
316 |
|
'backspace' => 224, |
317 |
|
}, |
318 |
|
0x87FD => { |
319 |
|
'return' => sub { |
320 |
|
M6502::write( 0xfc, 13 ); |
321 |
|
return 0; |
322 |
|
}, |
323 |
|
'left ctrl' => 16, |
324 |
|
'right ctrl' => 16, |
325 |
|
}, |
326 |
|
0x87FA => { |
327 |
|
'f4' => 16, |
328 |
|
'f3' => 128, |
329 |
|
'f2' => 192, |
330 |
|
'f1' => 224, |
331 |
|
}, |
332 |
|
0x87FB => { |
333 |
|
'space' => 32, |
334 |
|
'left shift' => 16, |
335 |
|
'right shift' => 16, |
336 |
|
}, |
337 |
|
0x87F6 => { |
338 |
|
'6' => 16, |
339 |
|
't' => 128, |
340 |
|
'z' => 192, |
341 |
|
'r' => 224, |
342 |
|
}, |
343 |
|
0x87F7 => { |
344 |
|
'5' => 32, |
345 |
|
'4' => 16, |
346 |
|
}, |
347 |
|
0x87EE => { |
348 |
|
'7' => 16, |
349 |
|
'u' => 128, |
350 |
|
'i' => 192, |
351 |
|
'o' => 224, |
352 |
|
}, |
353 |
|
0x87EF => { |
354 |
|
'8' => 32, |
355 |
|
'9' => 16, |
356 |
|
}, |
357 |
|
0x87DE => { |
358 |
|
'1' => 16, |
359 |
|
'w' => 128, |
360 |
|
'q' => 192, |
361 |
|
'e' => 224, |
362 |
|
}, |
363 |
|
0x87DF => { |
364 |
|
'2' => 32, |
365 |
|
'3' => 16, |
366 |
|
}, |
367 |
|
0x87BE => { |
368 |
|
'm' => 16, |
369 |
|
'k' => 128, |
370 |
|
'j' => 192, |
371 |
|
'l' => 224, |
372 |
|
}, |
373 |
|
0x87BF => { |
374 |
|
',' => 32, |
375 |
|
'.' => 16, |
376 |
|
}, |
377 |
|
0x877E => { |
378 |
|
'y' => 16, |
379 |
|
's' => 128, |
380 |
|
'a' => 192, |
381 |
|
'd' => 224, |
382 |
|
}, |
383 |
|
0x877F => { |
384 |
|
'x' => 32, |
385 |
|
'c' => 16, |
386 |
|
}, |
387 |
|
0x86FE => { |
388 |
|
'n' => 16, |
389 |
|
'g' => 128, |
390 |
|
'h' => 192, |
391 |
|
'f' => 224, |
392 |
|
}, |
393 |
|
0x86FF => { |
394 |
|
'b' => 32, |
395 |
|
'c' => 16, |
396 |
|
}, |
397 |
|
0x85FE => { |
398 |
|
':' => 16, |
399 |
|
'\\' => 128, |
400 |
|
'\'' => 192, |
401 |
|
';' => 224, |
402 |
|
'8' => 16, # FIXME? |
403 |
|
}, |
404 |
|
0x85FF => { |
405 |
|
'/' => 32, |
406 |
|
'6' => 16, # FIXME? |
407 |
|
}, |
408 |
|
0x83FE => { |
409 |
|
';' => 16, |
410 |
|
'[' => 128, |
411 |
|
']' => 192, |
412 |
|
'p' => 224, |
413 |
|
'=' => 16, # FIXME? |
414 |
|
}, |
415 |
|
0x83FF => { |
416 |
|
'-' => 32, |
417 |
|
'0' => 16, |
418 |
|
}, |
419 |
|
}; |
420 |
|
|
421 |
|
|
422 |
sub read { |
sub read { |
423 |
my $self = shift; |
my $self = shift; |
424 |
my ($addr) = @_; |
my ($addr) = @_; |
425 |
my $byte = $mem[$addr]; |
my $byte = $mem[$addr]; |
426 |
warn "# Orao::read(",dump(@_),") = ",dump( $byte ),"\n" if $self->debug; |
confess sprintf("can't find memory at address %04x",$addr) unless defined($byte); |
427 |
|
warn sprintf("# Orao::read(%04x) = %02x\n", $addr, $byte) if $self->trace; |
428 |
|
|
429 |
|
# keyboard |
430 |
|
|
431 |
|
if ( first { $addr == $_ } @kbd_ports ) { |
432 |
|
warn sprintf("keyboard port: %04x\n",$addr) if $self->trace; |
433 |
|
if ( my $key = $self->key_pressed ) { |
434 |
|
my $r = $keyboard->{$addr} || confess "no definition for keyboard port found"; |
435 |
|
if ( my $ret = $r->{$key} ) { |
436 |
|
if ( ref($ret) eq 'CODE' ) { |
437 |
|
$ret = $ret->(); |
438 |
|
warn "executed $key and got: $ret\n"; |
439 |
|
} else { |
440 |
|
warn sprintf("keyboard port: %04x key: '%s' code: %02x\n", $addr, $key, $ret); |
441 |
|
} |
442 |
|
$mem[$addr] = $ret; |
443 |
|
return $ret; |
444 |
|
} else { |
445 |
|
warn sprintf("keyboard port: %04x unknown key: '%s'\n", $addr, $key); |
446 |
|
} |
447 |
|
warn sprintf("keyboard port: %04x %s\n",$addr,dump( $r )) if $self->trace; |
448 |
|
} |
449 |
|
} |
450 |
|
|
451 |
$self->mmap_pixel( $addr, 0, $byte, 0 ); |
$self->mmap_pixel( $addr, 0, $byte, 0 ); |
452 |
return $byte; |
return $byte; |
453 |
} |
} |
462 |
|
|
463 |
sub write { |
sub write { |
464 |
my $self = shift; |
my $self = shift; |
|
warn "# Orao::write(",dump(@_),")\n" if $self->debug; |
|
465 |
my ($addr,$byte) = @_; |
my ($addr,$byte) = @_; |
466 |
|
warn sprintf("# Orao::write(%04x,%02x)\n", $addr, $byte) if $self->trace; |
467 |
|
|
468 |
if ( $addr >= 0x6000 && $addr < 0x8000 ) { |
if ( $addr >= 0x6000 && $addr < 0x8000 ) { |
469 |
$self->vram( $addr - 0x6000 , $byte ); |
$self->vram( $addr - 0x6000 , $byte ); |
470 |
} |
} |
471 |
|
|
|
if ( $addr > 0xafff ) { |
|
|
warn sprintf "access to %04x above affff aborting\n", $addr; |
|
|
return -1; |
|
|
} |
|
472 |
if ( $addr == 0x8800 ) { |
if ( $addr == 0x8800 ) { |
473 |
warn sprintf "sound ignored: %x\n", $byte; |
warn sprintf "sound ignored: %x\n", $byte; |
474 |
} |
} |
475 |
|
|
476 |
|
if ( $addr > 0xafff ) { |
477 |
|
confess sprintf "write access 0x%04x > 0xafff aborting\n", $addr; |
478 |
|
} |
479 |
|
|
480 |
$self->mmap_pixel( $addr, $byte, 0, 0 ); |
$self->mmap_pixel( $addr, $byte, 0, 0 ); |
481 |
|
|
482 |
$mem[$addr] = $byte; |
$mem[$addr] = $byte; |
483 |
return; |
return; |
484 |
} |
} |
485 |
|
|
486 |
|
=head1 Command Line |
487 |
|
|
488 |
|
Command-line debugging intrerface is implemented for communication with |
489 |
|
emulated device |
490 |
|
|
491 |
|
=head2 prompt |
492 |
|
|
493 |
|
my ( $entered_line, @p ) = $orao->prompt( $address, $last_command ); |
494 |
|
|
495 |
|
=cut |
496 |
|
|
497 |
|
my $last = 'r 1'; |
498 |
|
|
499 |
|
sub prompt { |
500 |
|
my $self = shift; |
501 |
|
$self->app->sync; |
502 |
|
my $a = shift; |
503 |
|
print $self->hexdump( $a ), |
504 |
|
$last ? "[$last] " : '', |
505 |
|
"> "; |
506 |
|
my $in = <STDIN>; |
507 |
|
chomp($in); |
508 |
|
warn "## prompt got: $in\n" if $self->debug; |
509 |
|
$in ||= $last; |
510 |
|
$last = $in; |
511 |
|
return ( $in, split(/\s+/, $in) ) if $in; |
512 |
|
} |
513 |
|
|
514 |
|
=head2 cli |
515 |
|
|
516 |
|
$orao->cli(); |
517 |
|
|
518 |
|
=cut |
519 |
|
|
520 |
|
my $show_R = 0; |
521 |
|
|
522 |
|
sub cli { |
523 |
|
my $self = shift; |
524 |
|
my $a = $PC || confess "no pc?"; |
525 |
|
my $run_for = 0; |
526 |
|
warn $self->dump_R() if $show_R; |
527 |
|
while ( my ($line, @v) = $self->prompt( $a, $last ) ) { |
528 |
|
my $c = shift @v; |
529 |
|
next unless defined($c); |
530 |
|
my $v = shift @v; |
531 |
|
$v = hex($v) if $v && $v =~ m/^[0-9a-f]+$/; |
532 |
|
@v = map { hex($_) } @v; |
533 |
|
printf "## a: %04x parsed cli: c:%s v:%s %s\n", $a, $c, ($v || 'undef'), join(",",@v) if $self->debug; |
534 |
|
if ( $c =~ m/^[qx]/i ) { |
535 |
|
exit; |
536 |
|
} elsif ( $c eq '?' ) { |
537 |
|
my $t = $self->trace ? 'on' : 'off' ; |
538 |
|
my $d = $self->debug ? 'on' : 'off' ; |
539 |
|
warn <<__USAGE__; |
540 |
|
Usage: |
541 |
|
|
542 |
|
x|q\t\texit |
543 |
|
e 6000 6010\tdump memory, +/- to walk forward/backward |
544 |
|
m 1000 ff 00\tput ff 00 on 1000 |
545 |
|
j|u 1000\t\tjump (change pc) |
546 |
|
r 42\t\trun 42 instruction opcodes |
547 |
|
t\t\ttrace [$t] |
548 |
|
d\t\tdebug [$d] |
549 |
|
|
550 |
|
__USAGE__ |
551 |
|
warn $self->dump_R; |
552 |
|
$last = ''; |
553 |
|
} elsif ( $c =~ m/^e/i ) { |
554 |
|
$a = $v if defined($v); |
555 |
|
my $to = shift @v; |
556 |
|
$to = $a + 32 if ( ! $to || $to <= $a ); |
557 |
|
$to = 0xffff if ( $to > 0xffff ); |
558 |
|
my $lines = int( ($to - $a + 8) / 8 ); |
559 |
|
printf "## e %04x %04x (%d bytes) lines: %d\n", $a, $to, ($to-$a), $lines; |
560 |
|
while ( --$lines ) { |
561 |
|
print $self->hexdump( $a ); |
562 |
|
$a += 8; |
563 |
|
} |
564 |
|
$last = '+'; |
565 |
|
$show_R = 0; |
566 |
|
} elsif ( $c =~ m/^\+/ ) { |
567 |
|
$a += 8; |
568 |
|
$show_R = 0; |
569 |
|
} elsif ( $c =~ m/^\-/ ) { |
570 |
|
$a -= 8; |
571 |
|
$show_R = 0; |
572 |
|
} elsif ( $c =~ m/^m/i ) { |
573 |
|
$a = $v if defined($v); |
574 |
|
$self->poke_code( $a, @v ); |
575 |
|
printf "poke %d bytes at %04x\n", $#v + 1, $a; |
576 |
|
$last = '+'; |
577 |
|
$show_R = 0; |
578 |
|
} elsif ( $c =~ m/^l/i ) { |
579 |
|
my $to = shift @v || 0x1000; |
580 |
|
$a = $to; |
581 |
|
$self->load_image( $v, $a ); |
582 |
|
$last = ''; |
583 |
|
} elsif ( $c =~ m/^s/i ) { |
584 |
|
$self->save_dump( $v || 'mem.dump', @v ); |
585 |
|
$last = ''; |
586 |
|
} elsif ( $c =~ m/^r/i ) { |
587 |
|
$run_for = $v || 1; |
588 |
|
print "run_for $run_for instructions\n"; |
589 |
|
$show_R = 1; |
590 |
|
last; |
591 |
|
} elsif ( $c =~ m/^(u|j)/ ) { |
592 |
|
my $to = $v || $a; |
593 |
|
printf "set pc to %04x\n", $to; |
594 |
|
$PC = $to; # remember for restart |
595 |
|
$run_for = 1; |
596 |
|
$last = "r $run_for"; |
597 |
|
$show_R = 1; |
598 |
|
last; |
599 |
|
} elsif ( $c =~ m/^t/ ) { |
600 |
|
$self->trace( not $self->trace ); |
601 |
|
print "trace ", $self->trace ? 'on' : 'off', "\n"; |
602 |
|
$last = ''; |
603 |
|
} elsif ( $c =~ m/^d/ ) { |
604 |
|
$self->debug( not $self->debug ); |
605 |
|
print "debug ", $self->debug ? 'on' : 'off', "\n"; |
606 |
|
$last = ''; |
607 |
|
} else { |
608 |
|
warn "# ignored $line\n" if ($line); |
609 |
|
$last = ''; |
610 |
|
} |
611 |
|
} |
612 |
|
|
613 |
|
return $run_for; |
614 |
|
} |
615 |
|
|
616 |
=head1 AUTHOR |
=head1 AUTHOR |
617 |
|
|