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use strict; |
use strict; |
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use Carp qw/confess/; |
use Carp qw/confess/; |
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use lib './lib'; |
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#use Time::HiRes qw(time); |
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use File::Slurp; |
use File::Slurp; |
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use Data::Dump qw/dump/; |
use Data::Dump qw/dump/; |
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use M6502; |
use M6502; # import @mem $PC and friends |
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use Screen qw/$white $black/; |
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use base qw(Class::Accessor M6502 Screen Prefs Tape); |
use base qw(Class::Accessor VRac M6502 Screen Prefs Tape); |
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__PACKAGE__->mk_accessors(qw(booted)); |
#__PACKAGE__->mk_accessors(qw()); |
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=head1 NAME |
=head1 NAME |
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=head1 VERSION |
=head1 VERSION |
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Version 0.04 |
Version 0.05 |
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=cut |
=cut |
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our $VERSION = '0.04'; |
our $VERSION = '0.05'; |
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=head1 SUMMARY |
=head1 SUMMARY |
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warn "emulating ", $#mem, " bytes of memory\n"; |
warn "emulating ", $#mem, " bytes of memory\n"; |
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# $self->scale( 2 ); |
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$self->open_screen; |
$self->open_screen; |
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$self->load_rom({ |
$self->load_rom({ |
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0x1000 => 'dump/SCRINV.BIN', |
# 0x1000 => 'dump/SCRINV.BIN', |
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# should be 0x6000, but oraoemu has 2 byte prefix |
# should be 0x6000, but oraoemu has 2 byte prefix |
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0x5FFE => 'dump/screen.dmp', |
# 0x5FFE => '/home/dpavlin/orao/dump/screen.dmp', |
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# 0xC000 => 'rom/BAS12.ROM', |
# 0xC000 => 'rom/Orao/BAS12.ROM', |
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# 0xE000 => 'rom/CRT12.ROM', |
# 0xE000 => 'rom/Orao/CRT12.ROM', |
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0xC000 => 'rom/BAS13.ROM', |
0xC000 => 'rom/Orao/BAS13.ROM', |
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0xE000 => 'rom/CRT13.ROM', |
0xE000 => 'rom/Orao/CRT13.ROM', |
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}); |
}); |
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# $PC = 0xDD11; # BC |
# $PC = 0xDD11; # BC |
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$self->boot if ( ! $self->booted ); |
$self->boot if ( ! $self->booted ); |
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$self->load_tape( '../oraoigre/bdash.tap' ); |
# $self->load_tape( '../oraoigre/bdash.tap' ); |
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$self->loop; |
$self->loop( sub { |
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M6502::exec( $_[0] ); |
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$self->render_vram; |
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}); |
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}; |
}; |
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=head1 Helper functions |
=head1 Helper functions |
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=head2 load_rom |
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called to init memory and load initial rom images |
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$emu->load_rom; |
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=cut |
=cut |
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sub load_rom { |
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my ($self, $loaded_files) = @_; |
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#my $time_base = time(); |
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foreach my $addr ( sort keys %$loaded_files ) { |
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my $path = $loaded_files->{$addr}; |
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$self->load_image( $path, $addr ); |
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} |
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} |
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# write chunk directly into memory, updateing vram if needed |
# write chunk directly into memory, updateing vram if needed |
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sub _write_chunk { |
sub _write_chunk { |
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my $self = shift; |
my $self = shift; |
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return 1; |
return 1; |
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}; |
}; |
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=head2 save_dump |
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$emu->save_dump( 'filename', $from, $to ); |
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=cut |
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sub save_dump { |
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my $self = shift; |
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my ( $path, $from, $to ) = @_; |
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$from ||= 0; |
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$to ||= 0xffff; |
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open(my $fh, '>', $path) || die "can't open $path: $!"; |
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print $fh $self->read_chunk( $from, $to ); |
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close($fh); |
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my $size = -s $path; |
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warn sprintf "saved %s %d %x bytes\n", $path, $size, $size; |
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} |
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=head2 hexdump |
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$emu->hexdump( $address ); |
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=cut |
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sub hexdump { |
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my $self = shift; |
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my $a = shift; |
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return sprintf(" %04x %s\n", $a, |
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join(" ", |
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map { |
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if ( defined($_) ) { |
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sprintf( "%02x", $_ ) |
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} else { |
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' ' |
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} |
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} @mem[ $a .. $a+8 ] |
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) |
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); |
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} |
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=head1 Memory management |
=head1 Memory management |
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return; |
return; |
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} |
} |
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=head1 Command Line |
=head2 render_vram |
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Command-line debugging intrerface is implemented for communication with |
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emulated device |
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=head2 prompt |
Render one frame of video ram |
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my ( $entered_line, @p ) = $emu->prompt( $address, $last_command ); |
$self->render_vram; |
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=cut |
=cut |
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my $last = 'r 1'; |
my @flip; |
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sub prompt { |
foreach my $i ( 0 .. 255 ) { |
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my $self = shift; |
my $t = 0; |
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$self->app->sync; |
$i & 0b00000001 and $t = $t | 0b10000000; |
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my $a = shift; |
$i & 0b00000010 and $t = $t | 0b01000000; |
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print $self->hexdump( $a ), |
$i & 0b00000100 and $t = $t | 0b00100000; |
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$last ? "[$last] " : '', |
$i & 0b00001000 and $t = $t | 0b00010000; |
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"> "; |
$i & 0b00010000 and $t = $t | 0b00001000; |
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my $in = <STDIN>; |
$i & 0b00100000 and $t = $t | 0b00000100; |
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chomp($in); |
$i & 0b01000000 and $t = $t | 0b00000010; |
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warn "## prompt got: $in\n" if $self->debug; |
$i & 0b10000000 and $t = $t | 0b00000001; |
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$in ||= $last; |
#warn "$i = $t\n"; |
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$last = $in; |
$flip[$i] = $t; |
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return ( $in, split(/\s+/, $in) ) if $in; |
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} |
} |
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=head2 cli |
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$emu->cli(); |
sub render_vram { |
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my $self = shift; |
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=cut |
return unless $self->booted; |
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my $show_R = 0; |
my $pixels = pack("C*", map { $flip[$_] } @mem[ 0x6000 .. 0x7fff ]); |
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sub cli { |
my $vram = SDL::Surface->new( |
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my $self = shift; |
-width => 256, |
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my $a = $PC || confess "no pc?"; |
-height => 256, |
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my $run_for = 0; |
-depth => 1, # 1 bit per pixel |
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warn $self->dump_R() if $show_R; |
-pitch => 32, # bytes per line |
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while ( my ($line, @v) = $self->prompt( $a, $last ) ) { |
-from => $pixels, |
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my $c = shift @v; |
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next unless defined($c); |
$vram->set_colors( 0, $black, $white ); |
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my $v = shift @v; |
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$v = hex($v) if $v && $v =~ m/^[0-9a-f]+$/; |
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@v = map { hex($_) } @v; |
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printf "## a: %04x parsed cli: c:%s v:%s %s\n", $a, $c, ($v || 'undef'), join(",",@v) if $self->debug; |
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if ( $c =~ m/^[qx]/i ) { |
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exit; |
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} elsif ( $c eq '?' ) { |
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my $t = $self->trace ? 'on' : 'off' ; |
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my $d = $self->debug ? 'on' : 'off' ; |
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warn <<__USAGE__; |
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Usage: |
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x|q\t\texit |
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e 6000 6010\tdump memory, +/- to walk forward/backward |
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m 1000 ff 00\tput ff 00 on 1000 |
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j|u 1000\t\tjump (change pc) |
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r 42\t\trun 42 instruction opcodes |
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t\t\ttrace [$t] |
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d\t\tdebug [$d] |
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__USAGE__ |
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warn $self->dump_R; |
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$last = ''; |
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} elsif ( $c =~ m/^e/i ) { |
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$a = $v if defined($v); |
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my $to = shift @v; |
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$to = $a + 32 if ( ! $to || $to <= $a ); |
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$to = 0xffff if ( $to > 0xffff ); |
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my $lines = int( ($to - $a + 8) / 8 ); |
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printf "## e %04x %04x (%d bytes) lines: %d\n", $a, $to, ($to-$a), $lines; |
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while ( --$lines ) { |
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print $self->hexdump( $a ); |
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$a += 8; |
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} |
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$last = '+'; |
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$show_R = 0; |
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} elsif ( $c =~ m/^\+/ ) { |
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$a += 8; |
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$show_R = 0; |
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} elsif ( $c =~ m/^\-/ ) { |
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$a -= 8; |
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$show_R = 0; |
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} elsif ( $c =~ m/^m/i ) { |
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$a = $v if defined($v); |
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$self->poke_code( $a, @v ); |
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printf "poke %d bytes at %04x\n", $#v + 1, $a; |
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$last = '+'; |
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$show_R = 0; |
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} elsif ( $c =~ m/^l/i ) { |
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my $to = shift @v || 0x1000; |
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$a = $to; |
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$self->load_image( $v, $a ); |
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$last = ''; |
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} elsif ( $c =~ m/^s/i ) { |
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$self->save_dump( $v || 'mem.dump', @v ); |
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$last = ''; |
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} elsif ( $c =~ m/^re/i ) { # reset |
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M6502::reset(); |
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$last = 'r 1'; |
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} elsif ( $c =~ m/^r/i ) { # run |
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$run_for = $v || 1; |
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print "run_for $run_for instructions\n"; |
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$show_R = 1; |
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last; |
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} elsif ( $c =~ m/^(u|j)/i ) { |
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my $to = $v || $a; |
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printf "set pc to %04x\n", $to; |
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$PC = $to; # remember for restart |
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$run_for = 1; |
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$last = "r $run_for"; |
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$show_R = 1; |
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last; |
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} elsif ( $c =~ m/^tape/ ) { |
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if ( $c =~ m/rate/ ) { |
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$self->tape_rate( $v ); |
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warn "will read table with rate $v\n"; |
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} elsif ( ! $v ) { |
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warn "ERROR: please specify tape name!\n"; |
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} elsif ( ! -e $v ) { |
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warn "ERROR: tape $v: $!\n"; |
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} else { |
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$self->load_tape( $v ); |
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} |
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$last = ''; |
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} elsif ( $c =~ m/^t/i ) { |
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$self->trace( not $self->trace ); |
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print "trace ", $self->trace ? 'on' : 'off', "\n"; |
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$last = ''; |
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} elsif ( $c =~ m/^d/i ) { |
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$self->debug( not $self->debug ); |
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print "debug ", $self->debug ? 'on' : 'off', "\n"; |
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$last = ''; |
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} else { |
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warn "# ignored $line\n" if ($line); |
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$last = ''; |
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} |
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} |
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return $run_for; |
$self->render_frame( $vram ); |
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} |
} |
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=head1 AUTHOR |
=head1 AUTHOR |