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); |
use base qw(Class::Accessor M6502 Screen); |
14 |
__PACKAGE__->mk_accessors(qw(debug trace run_for mem_dump trace)); |
__PACKAGE__->mk_accessors(qw(debug trace run_for mem_dump trace)); |
15 |
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|
16 |
=head1 NAME |
=head1 NAME |
31 |
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|
32 |
=cut |
=cut |
33 |
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|
34 |
my $loaded_files = { |
=head2 init |
35 |
0xC000 => 'rom/BAS12.ROM', |
|
36 |
0xE000 => 'rom/CRT12.ROM', |
Start emulator |
37 |
}; |
|
38 |
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=cut |
39 |
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|
40 |
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our $orao; |
41 |
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42 |
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select(STDERR); $| = 1; |
43 |
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|
44 |
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sub init { |
45 |
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my $self = shift; |
46 |
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warn "Orao calling upstream init\n"; |
47 |
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$self->SUPER::init( $self, @_ ); |
48 |
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|
49 |
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warn "staring Orao $Orao::VERSION emulation\n"; |
50 |
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|
51 |
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$self->open_screen; |
52 |
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$self->load_rom({ |
53 |
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0x1000 => 'dump/SCRINV.BIN', |
54 |
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0xC000 => 'rom/BAS12.ROM', |
55 |
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0xE000 => 'rom/CRT12.ROM', |
56 |
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}); |
57 |
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58 |
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$PC = 0xDD11; # BC |
59 |
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# $PC = 0xC274; # MC |
60 |
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61 |
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$orao = $self; |
62 |
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63 |
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# $self->prompt( 0x1000 ); |
64 |
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65 |
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my ( $trace, $debug ) = ( $self->trace, $self->debug ); |
66 |
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$self->trace( 0 ); |
67 |
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$self->debug( 0 ); |
68 |
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69 |
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if ( $self->show_mem ) { |
70 |
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71 |
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warn "rendering memory map\n"; |
72 |
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73 |
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my @mmap = ( |
74 |
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0x0000, 0x03FF, 'nulti blok', |
75 |
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0x0400, 0x5FFF, 'korisnički RAM (23K)', |
76 |
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0x6000, 0x7FFF, 'video RAM', |
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0x8000, 0x9FFF, 'sistemske lokacije', |
78 |
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0xA000, 0xAFFF, 'ekstenzija', |
79 |
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0xB000, 0xBFFF, 'DOS', |
80 |
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0xC000, 0xDFFF, 'BASIC ROM', |
81 |
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0xE000, 0xFFFF, 'sistemski ROM', |
82 |
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); |
83 |
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84 |
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foreach my $i ( 0 .. $#mmap / 3 ) { |
85 |
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my $o = $i * 3; |
86 |
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my ( $from, $to, $desc ) = @mmap[$o,$o+1,$o+2]; |
87 |
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printf "%04x - %04x - %s\n", $from, $to, $desc; |
88 |
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for my $a ( $from .. $to ) { |
89 |
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if ( $a >= 0x6000 && $a < 0x8000 ) { |
90 |
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my $b = $self->read( $a ); |
91 |
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$self->vram( $a - 0x6000, $b ); |
92 |
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} else { |
93 |
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$self->read( $a ); |
94 |
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} |
95 |
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} |
96 |
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} |
97 |
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98 |
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} else { |
99 |
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100 |
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warn "rendering video memory\n"; |
101 |
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for my $a ( 0x6000 .. 0x7fff ) { |
102 |
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$self->vram( $a - 0x6000, $mem[$a] ); |
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, $IPeriod ) = ( 1, 2, 3, 4, 5, 6 ); |
111 |
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112 |
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warn "Orao init finished", |
113 |
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$self->trace ? ' trace' : '', |
114 |
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$self->debug ? ' debug' : '', |
115 |
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"\n"; |
116 |
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117 |
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} |
118 |
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|
119 |
=head2 load_rom |
=head2 load_rom |
120 |
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|
125 |
=cut |
=cut |
126 |
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|
127 |
sub load_rom { |
sub load_rom { |
128 |
my ($self) = @_; |
my ($self, $loaded_files) = @_; |
129 |
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|
130 |
#my $time_base = time(); |
#my $time_base = time(); |
131 |
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|
132 |
foreach my $addr ( sort keys %$loaded_files ) { |
foreach my $addr ( sort keys %$loaded_files ) { |
133 |
my $path = $loaded_files->{$addr}; |
my $path = $loaded_files->{$addr}; |
|
printf "loading '%s' at %04x\n", $path, $addr; |
|
134 |
$self->load_oraoemu( $path, $addr ); |
$self->load_oraoemu( $path, $addr ); |
135 |
} |
} |
136 |
} |
} |
140 |
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|
141 |
=cut |
=cut |
142 |
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143 |
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sub _write_chunk { |
144 |
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my $self = shift; |
145 |
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my ( $addr, $chunk ) = @_; |
146 |
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$self->write_chunk( $addr, $chunk ); |
147 |
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my $end = $addr + length($chunk); |
148 |
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my ( $f, $t ) = ( 0x6000, 0x7fff ); |
149 |
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150 |
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if ( $end < $f || $addr >= $t ) { |
151 |
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warn "skip vram update\n"; |
152 |
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return; |
153 |
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}; |
154 |
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155 |
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$f = $addr if ( $addr > $f ); |
156 |
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$t = $end if ( $end < $t ); |
157 |
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158 |
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warn sprintf("refresh video ram %04x-%04x\n", $f, $t); |
159 |
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foreach my $a ( $f .. $t ) { |
160 |
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$self->vram( $a - 0x6000 , $mem[ $a ] ); |
161 |
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} |
162 |
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} |
163 |
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|
164 |
sub load_oraoemu { |
sub load_oraoemu { |
165 |
my $self = shift; |
my $self = shift; |
166 |
my ( $path, $addr ) = @_; |
my ( $path, $addr ) = @_; |
167 |
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|
168 |
my $size = -s $path || die "no size for $path: $!"; |
my $size = -s $path || confess "no size for $path: $!"; |
169 |
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|
170 |
my $buff = read_file( $path ); |
my $buff = read_file( $path ); |
171 |
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|
172 |
if ( $size == 65538 ) { |
if ( $size == 65538 ) { |
173 |
$addr = 0; |
$addr = 0; |
174 |
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; |
175 |
$self->write_chunk( $addr, substr($buff,2) ); |
$self->_write_chunk( $addr, substr($buff,2) ); |
176 |
return; |
return; |
177 |
} elsif ( $size == 32800 ) { |
} elsif ( $size == 32800 ) { |
178 |
$addr = 0; |
$addr = 0; |
179 |
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, $size; |
180 |
#$self->write_chunk( $addr, substr($buff,0x20) ); |
$self->_write_chunk( $addr, substr($buff,0x20) ); |
|
$self->poke_code( $addr, map { ord($_) } split(//,substr($buff,0x20)) ); |
|
181 |
return; |
return; |
182 |
} |
} |
183 |
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; |
184 |
return $self->write_chunk( $addr, $buff ); |
return $self->_write_chunk( $addr, $buff ); |
185 |
|
|
186 |
my $chunk; |
my $chunk; |
187 |
|
|
197 |
$pos += 4; |
$pos += 4; |
198 |
} |
} |
199 |
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|
200 |
$self->write_chunk( $addr, $chunk ); |
$self->_write_chunk( $addr, $chunk ); |
201 |
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|
202 |
}; |
}; |
203 |
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|
220 |
close($fh); |
close($fh); |
221 |
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|
222 |
my $size = -s $path; |
my $size = -s $path; |
223 |
printf "saved %s %d %x bytes\n", $path, $size, $size; |
warn sprintf "saved %s %d %x bytes\n", $path, $size, $size; |
224 |
} |
} |
225 |
|
|
226 |
=head2 hexdump |
=head2 hexdump |
236 |
join(" ", |
join(" ", |
237 |
map { |
map { |
238 |
sprintf( "%02x", $_ ) |
sprintf( "%02x", $_ ) |
239 |
} $self->ram( $a, $a+8 ) |
} @mem[ $a .. $a+8 ] |
240 |
) |
) |
241 |
); |
); |
242 |
} |
} |
249 |
|
|
250 |
sub prompt { |
sub prompt { |
251 |
my $self = shift; |
my $self = shift; |
252 |
|
$self->app->sync; |
253 |
my $a = shift; |
my $a = shift; |
254 |
my $last = shift; |
my $last = shift; |
255 |
print $self->hexdump( $a ), |
print STDERR $self->hexdump( $a ), |
256 |
$last ? "[$last] " : '', |
$last ? "[$last] " : '', |
257 |
"> "; |
"> "; |
258 |
my $in = <STDIN>; |
my $in = <STDIN>; |
259 |
chomp($in); |
chomp($in); |
260 |
|
warn "## prompt got: $in\n" if $self->debug; |
261 |
$in ||= $last; |
$in ||= $last; |
262 |
$last = $in; |
$last = $in; |
263 |
return split(/\s+/, $in) if $in; |
return split(/\s+/, $in) if $in; |
264 |
} |
} |
265 |
|
|
266 |
|
=head1 Memory management |
267 |
|
|
268 |
|
Orao implements all I/O using mmap addresses. This was main reason why |
269 |
|
L<Acme::6502> was just too slow to handle it. |
270 |
|
|
271 |
|
=cut |
272 |
|
|
273 |
|
=head2 read |
274 |
|
|
275 |
|
Read from memory |
276 |
|
|
277 |
|
$byte = read( $address ); |
278 |
|
|
279 |
|
=cut |
280 |
|
|
281 |
|
sub read { |
282 |
|
my $self = shift; |
283 |
|
my ($addr) = @_; |
284 |
|
my $byte = $mem[$addr]; |
285 |
|
warn sprintf("# Orao::read(%04x) = %02x\n", $addr, $byte) if $self->trace; |
286 |
|
$self->mmap_pixel( $addr, 0, $byte, 0 ); |
287 |
|
return $byte; |
288 |
|
} |
289 |
|
|
290 |
|
=head2 write |
291 |
|
|
292 |
|
Write into emory |
293 |
|
|
294 |
|
write( $address, $byte ); |
295 |
|
|
296 |
|
=cut |
297 |
|
|
298 |
|
sub write { |
299 |
|
my $self = shift; |
300 |
|
my ($addr,$byte) = @_; |
301 |
|
warn sprintf("# Orao::write(%04x,%02x)\n", $addr, $byte) if $self->trace; |
302 |
|
|
303 |
|
if ( $addr >= 0x6000 && $addr < 0x8000 ) { |
304 |
|
$self->vram( $addr - 0x6000 , $byte ); |
305 |
|
} |
306 |
|
|
307 |
|
if ( $addr > 0xafff ) { |
308 |
|
warn sprintf "access to %04x above affff aborting\n", $addr; |
309 |
|
return -1; |
310 |
|
} |
311 |
|
if ( $addr == 0x8800 ) { |
312 |
|
warn sprintf "sound ignored: %x\n", $byte; |
313 |
|
} |
314 |
|
|
315 |
|
$self->mmap_pixel( $addr, $byte, 0, 0 ); |
316 |
|
|
317 |
|
$mem[$addr] = $byte; |
318 |
|
return; |
319 |
|
} |
320 |
|
|
321 |
|
=head1 Command Line |
322 |
|
|
323 |
|
Command-line debugging intrerface is implemented for communication with |
324 |
|
emulated device |
325 |
|
|
326 |
|
=head2 cli |
327 |
|
|
328 |
|
$orao->cli(); |
329 |
|
|
330 |
|
=cut |
331 |
|
|
332 |
|
my $last = 'r 1'; |
333 |
|
|
334 |
|
sub cli { |
335 |
|
my $self = shift; |
336 |
|
my $a = $PC || confess "no pc?"; |
337 |
|
while ( my @v = $self->prompt( $a, $last ) ) { |
338 |
|
my $c = shift @v; |
339 |
|
my $v = shift @v; |
340 |
|
$v = hex($v) if $v && $v =~ m/^[0-9a-f]+$/; |
341 |
|
@v = map { hex($_) } @v; |
342 |
|
printf "## a: %04x parsed cli: c:%s v:%s %s\n", $a, $c, ($v || 'undef'), join(",",@v) if $self->debug; |
343 |
|
if ( $c =~ m/^[qx]/i ) { |
344 |
|
exit; |
345 |
|
} elsif ( $c eq '?' ) { |
346 |
|
warn <<__USAGE__; |
347 |
|
uage: |
348 |
|
x|q\t\texit |
349 |
|
e 6000 6010\tdump memory, +/- to walk forward/backward |
350 |
|
m 1000 ff 00\tput ff 00 on 1000 |
351 |
|
j|u 1000\t\tjump (change pc) |
352 |
|
r 42\t\trun 42 instruction opcodes |
353 |
|
t\t\ttrace on/off |
354 |
|
d\t\tdebug on/off |
355 |
|
__USAGE__ |
356 |
|
} elsif ( $c =~ m/^e/i ) { |
357 |
|
$a = $v if defined($v); |
358 |
|
my $to = shift @v; |
359 |
|
$to = $a + 32 if ( ! $to || $to <= $a ); |
360 |
|
my $lines = int( ($to - $a - 8) / 8 ); |
361 |
|
printf "## m %04x %04x lines: %d\n", $a, $to, $lines; |
362 |
|
while ( $lines ) { |
363 |
|
print $self->hexdump( $a ); |
364 |
|
$a += 8; |
365 |
|
$lines--; |
366 |
|
} |
367 |
|
$last = '+'; |
368 |
|
} elsif ( $c =~ m/^\+/ ) { |
369 |
|
$a += 8; |
370 |
|
} elsif ( $c =~ m/^\-/ ) { |
371 |
|
$a -= 8; |
372 |
|
} elsif ( $c =~ m/^m/i ) { |
373 |
|
$a = $v; |
374 |
|
$self->poke_code( $a, @v ); |
375 |
|
printf "poke %d bytes at %04x\n", $#v + 1, $a; |
376 |
|
} elsif ( $c =~ m/^l/i ) { |
377 |
|
my $to = shift @v || 0x1000; |
378 |
|
$a = $to; |
379 |
|
$self->load_oraoemu( $v, $a ); |
380 |
|
} elsif ( $c =~ m/^s/i ) { |
381 |
|
$self->save_dump( $v || 'mem.dump', @v ); |
382 |
|
} elsif ( $c =~ m/^r/i ) { |
383 |
|
$run_for = $v || 1; |
384 |
|
print "run_for $run_for instructions\n"; |
385 |
|
last; |
386 |
|
} elsif ( $c =~ m/^(u|j)/ ) { |
387 |
|
my $to = $v || $a; |
388 |
|
printf "set pc to %04x\n", $to; |
389 |
|
$PC = $to; # remember for restart |
390 |
|
$run_for = 1; |
391 |
|
last; |
392 |
|
} elsif ( $c =~ m/^t/ ) { |
393 |
|
$self->trace( not $self->trace ); |
394 |
|
print "trace ", $self->trace ? 'on' : 'off', "\n"; |
395 |
|
} elsif ( $c =~ m/^d/ ) { |
396 |
|
$self->debug( not $self->debug ); |
397 |
|
print "debug ", $self->debug ? 'on' : 'off', "\n"; |
398 |
|
} else { |
399 |
|
warn "# ignore $c\n"; |
400 |
|
last; |
401 |
|
} |
402 |
|
} |
403 |
|
|
404 |
|
|
405 |
|
} |
406 |
|
|
407 |
=head1 AUTHOR |
=head1 AUTHOR |
408 |
|
|
409 |
Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |
Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |