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 List::Util qw/first/; |
12 |
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use M6502; |
13 |
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|
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 run_for)); |
16 |
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|
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 |
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35 |
=head2 init |
my @kbd_ports = ( |
36 |
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0x87FC,0x87FD,0x87FA,0x87FB,0x87F6,0x87F7, |
37 |
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0x87EE,0x87EF,0x87DE,0x87DF,0x87BE,0x87BF, |
38 |
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0x877E,0x877F,0x86FE,0x86FF,0x85FE,0x85FF, |
39 |
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0x83FE,0x83FF, |
40 |
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); |
41 |
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|
42 |
Start emulator |
=head1 FUNCTIONS |
43 |
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44 |
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=head2 boot |
45 |
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|
46 |
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Start emulator, open L<Screen>, load initial ROM images, and render memory |
47 |
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|
48 |
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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 |
sub init { |
our $orao; |
54 |
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55 |
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select(STDERR); $| = 1; |
56 |
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|
57 |
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sub boot { |
58 |
my $self = shift; |
my $self = shift; |
59 |
warn "call upstream init\n"; |
warn "Orao calling upstream init\n"; |
60 |
$self->SUPER::init( @_ ); |
$self->SUPER::init( |
61 |
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read => sub { $self->read( @_ ) }, |
62 |
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write => sub { $self->write( @_ ) }, |
63 |
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); |
64 |
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|
65 |
warn "staring Orao $ORAO::VERSION emulation\n"; |
warn "Orao $Orao::VERSION emulation starting\n"; |
66 |
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67 |
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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 |
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0x1000 => 'dump/SCRINV.BIN', |
72 |
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# should be 0x6000, but oraoemu has 2 byte prefix |
73 |
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0x5FFE => 'dump/screen.dmp', |
74 |
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0xC000 => 'rom/BAS12.ROM', |
75 |
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0xE000 => 'rom/CRT12.ROM', |
76 |
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}); |
77 |
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78 |
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# $PC = 0xDD11; # BC |
79 |
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# $PC = 0xC274; # MC |
80 |
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81 |
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$PC = 0xff89; |
82 |
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83 |
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$orao = $self; |
84 |
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85 |
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# $self->prompt( 0x1000 ); |
86 |
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|
87 |
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my ( $trace, $debug ) = ( $self->trace, $self->debug ); |
88 |
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$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 |
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if ( $self->show_mem ) { |
94 |
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95 |
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warn "rendering memory map\n"; |
96 |
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97 |
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$self->render_mem( @mem ); |
98 |
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99 |
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my @mmap = ( |
100 |
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0x0000, 0x03FF, 'nulti blok', |
101 |
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0x0400, 0x5FFF, 'korisnički RAM (23K)', |
102 |
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0x6000, 0x7FFF, 'video RAM', |
103 |
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0x8000, 0x9FFF, 'sistemske lokacije', |
104 |
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0xA000, 0xAFFF, 'ekstenzija', |
105 |
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0xB000, 0xBFFF, 'DOS', |
106 |
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0xC000, 0xDFFF, 'BASIC ROM', |
107 |
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0xE000, 0xFFFF, 'sistemski ROM', |
108 |
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); |
109 |
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110 |
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} else { |
111 |
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112 |
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warn "rendering video memory\n"; |
113 |
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$self->render( @mem[ 0x6000 .. 0x7fff ] ); |
114 |
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|
115 |
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} |
116 |
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$self->sync; |
117 |
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$self->trace( $trace ); |
118 |
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$self->debug( $debug ); |
119 |
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120 |
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#( $A, $P, $X, $Y, $S, $IPeriod ) = ( 1, 2, 3, 4, 5, 6 ); |
121 |
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122 |
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warn "Orao boot finished", |
123 |
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$self->trace ? ' trace' : '', |
124 |
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$self->debug ? ' debug' : '', |
125 |
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"\n"; |
126 |
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127 |
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M6502::reset(); |
128 |
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129 |
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$self->booted( 1 ); |
130 |
} |
} |
131 |
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132 |
my $loaded_files = { |
=head2 run |
133 |
0xC000 => 'rom/BAS12.ROM', |
|
134 |
0xE000 => 'rom/CRT12.ROM', |
Run interactive emulation loop |
135 |
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136 |
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$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->boot if ( ! $self->booted ); |
144 |
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|
145 |
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while ( 1 ) { |
146 |
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$self->cli; |
147 |
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M6502::exec($run_for); |
148 |
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} |
149 |
}; |
}; |
150 |
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151 |
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=head1 Helper functions |
152 |
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153 |
=head2 load_rom |
=head2 load_rom |
154 |
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|
155 |
called to init memory and load initial rom images |
called to init memory and load initial rom images |
159 |
=cut |
=cut |
160 |
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|
161 |
sub load_rom { |
sub load_rom { |
162 |
my ($self) = @_; |
my ($self, $loaded_files) = @_; |
163 |
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|
164 |
#my $time_base = time(); |
#my $time_base = time(); |
165 |
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|
166 |
foreach my $addr ( sort keys %$loaded_files ) { |
foreach my $addr ( sort keys %$loaded_files ) { |
167 |
my $path = $loaded_files->{$addr}; |
my $path = $loaded_files->{$addr}; |
168 |
printf "loading '%s' at %04x\n", $path, $addr; |
$self->load_image( $path, $addr ); |
|
$self->load_oraoemu( $path, $addr ); |
|
169 |
} |
} |
170 |
} |
} |
171 |
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172 |
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# write chunk directly into memory, updateing vram if needed |
173 |
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sub _write_chunk { |
174 |
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my $self = shift; |
175 |
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my ( $addr, $chunk ) = @_; |
176 |
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$self->write_chunk( $addr, $chunk ); |
177 |
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my $end = $addr + length($chunk); |
178 |
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my ( $f, $t ) = ( 0x6000, 0x7fff ); |
179 |
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|
180 |
|
if ( $end < $f || $addr >= $t ) { |
181 |
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warn "skip vram update\n"; |
182 |
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return; |
183 |
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}; |
184 |
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185 |
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$f = $addr if ( $addr > $f ); |
186 |
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$t = $end if ( $end < $t ); |
187 |
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188 |
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warn sprintf("refresh video ram %04x-%04x\n", $f, $t); |
189 |
|
# foreach my $a ( $f .. $t ) { |
190 |
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# $self->vram( $a - 0x6000 , $mem[ $a ] ); |
191 |
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# } |
192 |
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$self->render( @mem[ 0x6000 .. 0x7fff ] ); |
193 |
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$self->render_mem( @mem ) if $self->show_mem; |
194 |
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} |
195 |
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196 |
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=head2 load_image |
197 |
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|
198 |
=head2 load_oraoemu |
Load binary files, ROM images and Orao Emulator files |
199 |
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|
200 |
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$orao->load_image( '/path/to/file', 0x1000 ); |
201 |
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|
202 |
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Returns true on success. |
203 |
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|
204 |
=cut |
=cut |
205 |
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|
206 |
sub load_oraoemu { |
sub load_image { |
207 |
my $self = shift; |
my $self = shift; |
208 |
my ( $path, $addr ) = @_; |
my ( $path, $addr ) = @_; |
209 |
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|
210 |
my $size = -s $path || die "no size for $path: $!"; |
if ( ! -e $path ) { |
211 |
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warn "ERROR: file $path doesn't exist\n"; |
212 |
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return; |
213 |
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} |
214 |
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215 |
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my $size = -s $path || confess "no size for $path: $!"; |
216 |
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|
217 |
my $buff = read_file( $path ); |
my $buff = read_file( $path ); |
218 |
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|
219 |
if ( $size == 65538 ) { |
if ( $size == 65538 ) { |
220 |
$addr = 0; |
$addr = 0; |
221 |
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; |
222 |
$self->write_chunk( $addr, substr($buff,2) ); |
$self->_write_chunk( $addr, substr($buff,2) ); |
223 |
return; |
return 1; |
224 |
} elsif ( $size == 32800 ) { |
} elsif ( $size == 32800 ) { |
225 |
$addr = 0; |
$addr = 0; |
226 |
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, $size; |
227 |
#$self->write_chunk( $addr, substr($buff,0x20) ); |
$self->_write_chunk( $addr, substr($buff,0x20) ); |
228 |
$self->poke_code( $addr, map { ord($_) } split(//,substr($buff,0x20)) ); |
return 1; |
|
return; |
|
229 |
} |
} |
230 |
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; |
231 |
return $self->write_chunk( $addr, $buff ); |
$self->_write_chunk( $addr, $buff ); |
232 |
|
return 1; |
233 |
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|
234 |
my $chunk; |
my $chunk; |
235 |
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|
245 |
$pos += 4; |
$pos += 4; |
246 |
} |
} |
247 |
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|
248 |
$self->write_chunk( $addr, $chunk ); |
$self->_write_chunk( $addr, $chunk ); |
249 |
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|
250 |
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return 1; |
251 |
}; |
}; |
252 |
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|
253 |
=head2 save_dump |
=head2 save_dump |
269 |
close($fh); |
close($fh); |
270 |
|
|
271 |
my $size = -s $path; |
my $size = -s $path; |
272 |
printf "saved %s %d %x bytes\n", $path, $size, $size; |
warn sprintf "saved %s %d %x bytes\n", $path, $size, $size; |
273 |
} |
} |
274 |
|
|
275 |
=head2 hexdump |
=head2 hexdump |
284 |
return sprintf(" %04x %s\n", $a, |
return sprintf(" %04x %s\n", $a, |
285 |
join(" ", |
join(" ", |
286 |
map { |
map { |
287 |
sprintf( "%02x", $_ ) |
if ( defined($_) ) { |
288 |
} $self->ram( $a, $a+8 ) |
sprintf( "%02x", $_ ) |
289 |
|
} else { |
290 |
|
' ' |
291 |
|
} |
292 |
|
} @mem[ $a .. $a+8 ] |
293 |
) |
) |
294 |
); |
); |
295 |
} |
} |
296 |
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|
297 |
|
=head1 Memory management |
298 |
|
|
299 |
|
Orao implements all I/O using mmap addresses. This was main reason why |
300 |
|
L<Acme::6502> was just too slow to handle it. |
301 |
|
|
302 |
|
=cut |
303 |
|
|
304 |
|
=head2 read |
305 |
|
|
306 |
|
Read from memory |
307 |
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|
308 |
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$byte = read( $address ); |
309 |
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|
310 |
|
=cut |
311 |
|
|
312 |
|
sub read { |
313 |
|
my $self = shift; |
314 |
|
my ($addr) = @_; |
315 |
|
my $byte = $mem[$addr]; |
316 |
|
confess sprintf("can't find memory at address %04x",$addr) unless defined($byte); |
317 |
|
warn sprintf("# Orao::read(%04x) = %02x\n", $addr, $byte) if $self->trace; |
318 |
|
|
319 |
|
# keyboard |
320 |
|
|
321 |
|
if ( first { $addr == $_ } @kbd_ports ) { |
322 |
|
warn sprintf("keyboard port: %04x\n",$addr); |
323 |
|
} elsif ( $addr == 0x87fc ) { |
324 |
|
warn "0x87fc - arrows/back\n"; |
325 |
|
=for pascal |
326 |
|
if VKey=VK_RIGHT then Result:=16; |
327 |
|
if VKey=VK_DOWN then Result:=128; |
328 |
|
if VKey=VK_UP then Result:=192; |
329 |
|
if VKey=VK_LEFT then Result:=224; |
330 |
|
if Ord(KeyPressed)=VK_BACK then Result:=224; |
331 |
|
=cut |
332 |
|
} elsif ( $addr == 0x87fd ) { |
333 |
|
warn "0x87fd - enter\n"; |
334 |
|
=for pascal |
335 |
|
if KeyPressed=Chr(13) then begin |
336 |
|
Mem[$FC]:=13; |
337 |
|
Result:=0; |
338 |
|
end; |
339 |
|
=cut |
340 |
|
} elsif ( $addr == 0x87fa ) { |
341 |
|
warn "0x87fa = F1 - F4\n"; |
342 |
|
=for pascal |
343 |
|
if VKey=VK_F4 then Result:=16; |
344 |
|
if VKey=VK_F3 then Result:=128; |
345 |
|
if VKey=VK_F2 then Result:=192; |
346 |
|
if VKey=VK_F1 then Result:=224; |
347 |
|
=cut |
348 |
|
} elsif ( $addr == 0x87fb ) { |
349 |
|
warn "0x87fb\n"; |
350 |
|
=for pascal |
351 |
|
if KeyPressed=Chr(32) then Result:=32; |
352 |
|
if KeyPressed='"' then Result:=16; |
353 |
|
if KeyPressed='!' then Result:=16; |
354 |
|
if KeyPressed='$' then Result:=16; |
355 |
|
if KeyPressed='%' then Result:=16; |
356 |
|
if KeyPressed='&' then Result:=16; |
357 |
|
if KeyPressed='(' then Result:=16; |
358 |
|
if KeyPressed=')' then Result:=16; |
359 |
|
if KeyPressed='=' then Result:=16; |
360 |
|
if KeyPressed='#' then Result:=16; |
361 |
|
if KeyPressed='+' then Result:=16; |
362 |
|
if KeyPressed='*' then Result:=16; |
363 |
|
if KeyPressed='?' then Result:=16; |
364 |
|
if KeyPressed='<' then Result:=16; |
365 |
|
if KeyPressed='>' then Result:=16; |
366 |
|
if VKey=191 then Result:=16; |
367 |
|
=cut |
368 |
|
} |
369 |
|
|
370 |
|
$self->mmap_pixel( $addr, 0, $byte, 0 ); |
371 |
|
return $byte; |
372 |
|
} |
373 |
|
|
374 |
|
=head2 write |
375 |
|
|
376 |
|
Write into emory |
377 |
|
|
378 |
|
write( $address, $byte ); |
379 |
|
|
380 |
|
=cut |
381 |
|
|
382 |
|
sub write { |
383 |
|
my $self = shift; |
384 |
|
my ($addr,$byte) = @_; |
385 |
|
warn sprintf("# Orao::write(%04x,%02x)\n", $addr, $byte) if $self->trace; |
386 |
|
|
387 |
|
if ( $addr >= 0x6000 && $addr < 0x8000 ) { |
388 |
|
$self->vram( $addr - 0x6000 , $byte ); |
389 |
|
} |
390 |
|
|
391 |
|
if ( $addr == 0x8800 ) { |
392 |
|
warn sprintf "sound ignored: %x\n", $byte; |
393 |
|
} |
394 |
|
|
395 |
|
if ( $addr > 0xafff ) { |
396 |
|
confess sprintf "write access 0x%04x > 0xafff aborting\n", $addr; |
397 |
|
} |
398 |
|
|
399 |
|
$self->mmap_pixel( $addr, $byte, 0, 0 ); |
400 |
|
|
401 |
|
$mem[$addr] = $byte; |
402 |
|
return; |
403 |
|
} |
404 |
|
|
405 |
|
=head1 Command Line |
406 |
|
|
407 |
|
Command-line debugging intrerface is implemented for communication with |
408 |
|
emulated device |
409 |
|
|
410 |
=head2 prompt |
=head2 prompt |
411 |
|
|
412 |
$orao->prompt( $address, $last_command ); |
my ( $entered_line, @p ) = $orao->prompt( $address, $last_command ); |
413 |
|
|
414 |
=cut |
=cut |
415 |
|
|
416 |
|
my $last = 'r 1'; |
417 |
|
|
418 |
sub prompt { |
sub prompt { |
419 |
my $self = shift; |
my $self = shift; |
420 |
|
$self->app->sync; |
421 |
my $a = shift; |
my $a = shift; |
422 |
my $last = shift; |
print STDERR $self->hexdump( $a ), |
|
print $self->hexdump( $a ), |
|
423 |
$last ? "[$last] " : '', |
$last ? "[$last] " : '', |
424 |
"> "; |
"> "; |
425 |
my $in = <STDIN>; |
my $in = <STDIN>; |
426 |
chomp($in); |
chomp($in); |
427 |
|
warn "## prompt got: $in\n" if $self->debug; |
428 |
$in ||= $last; |
$in ||= $last; |
429 |
$last = $in; |
$last = $in; |
430 |
return split(/\s+/, $in) if $in; |
return ( $in, split(/\s+/, $in) ) if $in; |
431 |
} |
} |
432 |
|
|
433 |
|
=head2 cli |
434 |
|
|
435 |
|
$orao->cli(); |
436 |
|
|
437 |
|
=cut |
438 |
|
|
439 |
|
my $show_R = 0; |
440 |
|
|
441 |
|
sub cli { |
442 |
|
my $self = shift; |
443 |
|
my $a = $PC || confess "no pc?"; |
444 |
|
warn $self->dump_R() if $show_R; |
445 |
|
while ( my ($line, @v) = $self->prompt( $a, $last ) ) { |
446 |
|
my $c = shift @v; |
447 |
|
next unless defined($c); |
448 |
|
my $v = shift @v; |
449 |
|
$v = hex($v) if $v && $v =~ m/^[0-9a-f]+$/; |
450 |
|
@v = map { hex($_) } @v; |
451 |
|
printf "## a: %04x parsed cli: c:%s v:%s %s\n", $a, $c, ($v || 'undef'), join(",",@v) if $self->debug; |
452 |
|
if ( $c =~ m/^[qx]/i ) { |
453 |
|
exit; |
454 |
|
} elsif ( $c eq '?' ) { |
455 |
|
my $t = $self->trace ? 'on' : 'off' ; |
456 |
|
my $d = $self->debug ? 'on' : 'off' ; |
457 |
|
warn <<__USAGE__; |
458 |
|
Usage: |
459 |
|
|
460 |
|
x|q\t\texit |
461 |
|
e 6000 6010\tdump memory, +/- to walk forward/backward |
462 |
|
m 1000 ff 00\tput ff 00 on 1000 |
463 |
|
j|u 1000\t\tjump (change pc) |
464 |
|
r 42\t\trun 42 instruction opcodes |
465 |
|
t\t\ttrace [$t] |
466 |
|
d\t\tdebug [$d] |
467 |
|
|
468 |
|
__USAGE__ |
469 |
|
warn $self->dump_R; |
470 |
|
} elsif ( $c =~ m/^e/i ) { |
471 |
|
$a = $v if defined($v); |
472 |
|
my $to = shift @v; |
473 |
|
$to = $a + 32 if ( ! $to || $to <= $a ); |
474 |
|
$to = 0xffff if ( $to > 0xffff ); |
475 |
|
my $lines = int( ($to - $a + 8) / 8 ); |
476 |
|
printf "## e %04x %04x (%d bytes) lines: %d\n", $a, $to, ($to-$a), $lines; |
477 |
|
while ( --$lines ) { |
478 |
|
print $self->hexdump( $a ); |
479 |
|
$a += 8; |
480 |
|
} |
481 |
|
$last = '+'; |
482 |
|
$show_R = 0; |
483 |
|
} elsif ( $c =~ m/^\+/ ) { |
484 |
|
$a += 8; |
485 |
|
$show_R = 0; |
486 |
|
} elsif ( $c =~ m/^\-/ ) { |
487 |
|
$a -= 8; |
488 |
|
$show_R = 0; |
489 |
|
} elsif ( $c =~ m/^m/i ) { |
490 |
|
$a = $v if defined($v); |
491 |
|
$self->poke_code( $a, @v ); |
492 |
|
printf "poke %d bytes at %04x\n", $#v + 1, $a; |
493 |
|
$last = '+'; |
494 |
|
$show_R = 0; |
495 |
|
} elsif ( $c =~ m/^l/i ) { |
496 |
|
my $to = shift @v || 0x1000; |
497 |
|
$a = $to; |
498 |
|
$self->load_image( $v, $a ); |
499 |
|
$last = ''; |
500 |
|
} elsif ( $c =~ m/^s/i ) { |
501 |
|
$self->save_dump( $v || 'mem.dump', @v ); |
502 |
|
$last = ''; |
503 |
|
} elsif ( $c =~ m/^r/i ) { |
504 |
|
$run_for = $v || 1; |
505 |
|
print "run_for $run_for instructions\n"; |
506 |
|
$show_R = 1; |
507 |
|
last; |
508 |
|
} elsif ( $c =~ m/^(u|j)/ ) { |
509 |
|
my $to = $v || $a; |
510 |
|
printf "set pc to %04x\n", $to; |
511 |
|
$PC = $to; # remember for restart |
512 |
|
$run_for = 1; |
513 |
|
$last = "r $run_for"; |
514 |
|
$show_R = 1; |
515 |
|
last; |
516 |
|
} elsif ( $c =~ m/^t/ ) { |
517 |
|
$self->trace( not $self->trace ); |
518 |
|
print "trace ", $self->trace ? 'on' : 'off', "\n"; |
519 |
|
$last = ''; |
520 |
|
} elsif ( $c =~ m/^d/ ) { |
521 |
|
$self->debug( not $self->debug ); |
522 |
|
print "debug ", $self->debug ? 'on' : 'off', "\n"; |
523 |
|
$last = ''; |
524 |
|
} else { |
525 |
|
warn "# ignored $line\n" if ($line); |
526 |
|
$last = ''; |
527 |
|
} |
528 |
|
} |
529 |
|
|
530 |
|
} |
531 |
|
|
532 |
=head1 AUTHOR |
=head1 AUTHOR |
533 |
|
|