--- M6502/Orao.pm 2007/07/30 23:28:25 38 +++ Orao.pm 2008/04/14 21:27:19 213 @@ -3,15 +3,14 @@ use warnings; use strict; -use Carp; -use lib './lib'; -#use Time::HiRes qw(time); +use Carp qw/confess/; use File::Slurp; use Data::Dump qw/dump/; -use M6502; +use M6502 '0.0.3'; +use Screen; -use base qw(Class::Accessor M6502 Screen); -__PACKAGE__->mk_accessors(qw(debug trace run_for mem_dump trace)); +use base qw(Class::Accessor VRac M6502 Screen Prefs Tape Session); +#__PACKAGE__->mk_accessors(qw()); =head1 NAME @@ -19,54 +18,76 @@ =head1 VERSION -Version 0.02 +Version 0.06 =cut -our $VERSION = '0.02'; +our $VERSION = '0.06'; =head1 SUMMARY -Emulator or Orao 8-bit 6502 machine popular in Croatia +Emulator for Orao 8-bit 6502 machine popular in Croatia (especially schools) =cut -=head2 init +=head1 FUNCTIONS -Start emulator +=head2 run + +Start emulator, open L, load initial ROM images, and start emulator loop =cut -our $orao; +our $emu; -sub init { +sub run { my $self = shift; + + M6502::reset(); + $self->_init_callbacks; + warn "Orao calling upstream init\n"; - $self->SUPER::init( $self, @_ ); + $self->SUPER::init( + read => sub { $self->read( @_ ) }, + write => sub { $self->write( @_ ) }, + ); - warn "staring Orao $Orao::VERSION emulation\n"; + warn "Orao $Orao::VERSION emulation starting\n"; + + warn "emulating ", $#mem, " bytes of memory\n"; + +# $self->scale( 2 ); + $self->show_mem( 1 ); + $self->load_session( 'sess/current' ); $self->open_screen; $self->load_rom({ - 0x1000 => 'dump/SCRINV.BIN', - 0xC000 => 'rom/BAS12.ROM', - 0xE000 => 'rom/CRT12.ROM', +# 0x1000 => 'dump/SCRINV.BIN', + # should be 0x6000, but oraoemu has 2 byte prefix +# 0x5FFE => '/home/dpavlin/orao/dump/screen.dmp', +# 0xC000 => 'rom/Orao/BAS12.ROM', +# 0xE000 => 'rom/Orao/CRT12.ROM', + 0xC000 => 'rom/Orao/BAS13.ROM', + 0xE000 => 'rom/Orao/CRT13.ROM', }); - $self->load_oraoemu( 'dump/orao-1.2' ); - $self->load_oraoemu( 'dump/SCRINV.BIN' ); - $PC = 0x1000; +# $PC = 0xDD11; # BC +# $PC = 0xC274; # MC + + $PC = 0xff89; - $orao = $self; + $emu = $self; # $self->prompt( 0x1000 ); - my $trace = $self->trace; + my ( $trace, $debug ) = ( $self->trace, $self->debug ); $self->trace( 0 ); + $self->debug( 0 ); - if ( $self->show_mem ) { + warn "rendering memory\n"; + $self->render_mem( M6502::mem_peek_region(0x0000,0xffff) ); - warn "rendering memory map\n"; + if ( $self->show_mem ) { my @mmap = ( 0x0000, 0x03FF, 'nulti blok', @@ -79,65 +100,89 @@ 0xE000, 0xFFFF, 'sistemski ROM', ); - foreach my $i ( 0 .. $#mmap / 3 ) { - my $o = $i * 3; - my ( $from, $to, $desc ) = @mmap[$o,$o+1,$o+2]; - printf "%04x - %04x - %s\n", $from, $to, $desc; - for my $a ( $from .. $to ) { - if ( $a >= 0x6000 && $a < 0x8000 ) { - my $b = $self->read( $a ); - $self->vram( $a - 0x6000, $b ); - } else { - $self->read( $a ); - } - } - } - - } else { + print "Orao memory map:"; - warn "rendering video memory\n"; - for my $a ( 0x6000 .. 0x7fff ) { - $self->vram( $a - 0x6000, $mem[$a] ); + while ( @mmap ) { + my ( $from, $to, $desc ) = splice(@mmap, 0, 3); + printf("%04x-%04x %s\n", $from, $to, $desc); } - + } - $self->sync; + $self->trace( $trace ); + $self->debug( $debug ); - ( $A, $P, $X, $Y, $S, $IPeriod ) = ( 1, 2, 3, 4, 5, 6 ); + warn "Orao boot finished", + $self->trace ? ' trace' : '', + $self->debug ? ' debug' : '', + "\n"; + +# $self->load_tape( 'tapes/Orao/bdash.tap' ); +# $self->load_tape( 'tapes/Orao/crtanje.tap' ); +# $self->load_tape( 'tapes/Orao/jjack.tap', 0x168 ); + $self->load_tape( 'tapes/Orao/muzika.tap', 0x168 ); + + $self->render_vram; + + $self->loop( sub { + my $run_for = shift; + warn sprintf("about to exec from PC %04x for %d cycles\n", $PC, $run_for) if $self->trace; + M6502::exec( $run_for ); + $self->render_vram; + $self->render_mem( M6502::mem_peek_region(0x0000,0xffff) ) if $self->show_mem; + }); +}; - warn "Orao init finished", $self->trace ? ' trace on' : '', "\n"; -} +=head1 Helper functions -=head2 load_rom +=head2 write_chunk -called to init memory and load initial rom images +Write chunk directly into memory, updateing vram if needed - $orao->load_rom; + $emu->write_chunk( 0x1000, $chunk_data ); =cut -sub load_rom { - my ($self, $loaded_files) = @_; +sub write_chunk { + my $self = shift; + my ( $addr, $chunk ) = @_; + $self->SUPER::write_chunk( $addr, $chunk ); + my $end = $addr + length($chunk); + my ( $f, $t ) = ( 0x6000, 0x7fff ); - #my $time_base = time(); + if ( $end < $f || $addr >= $t ) { + warn "skip vram update\n"; + return; + }; - foreach my $addr ( sort keys %$loaded_files ) { - my $path = $loaded_files->{$addr}; - $self->load_oraoemu( $path, $addr ); - } + $f = $addr if ( $addr > $f ); + $t = $end if ( $end < $t ); + + warn sprintf("refresh video ram %04x-%04x\n", $f, $t); + $self->render_vram; + $self->render_mem( @mem ); } +=head2 load_image + +Load binary files, ROM images and Orao Emulator files -=head2 load_oraoemu + $emu->load_image( '/path/to/file', 0x1000 ); + +Returns true on success. =cut -sub load_oraoemu { +sub load_image { my $self = shift; my ( $path, $addr ) = @_; + if ( ! -e $path ) { + warn "ERROR: file $path doesn't exist\n"; + return; + } + my $size = -s $path || confess "no size for $path: $!"; my $buff = read_file( $path ); @@ -146,158 +191,310 @@ $addr = 0; warn sprintf "loading oraoemu 64k dump %s at %04x - %04x %02x\n", $path, $addr, $addr+$size-1, $size; $self->write_chunk( $addr, substr($buff,2) ); - return; + return 1; } elsif ( $size == 32800 ) { $addr = 0; warn sprintf "loading oraoemu 1.3 dump %s at %04x - %04x %02x\n", $path, $addr, $addr+$size-1, $size; - #$self->write_chunk( $addr, substr($buff,0x20) ); - $self->poke_code( $addr, map { ord($_) } split(//,substr($buff,0x20)) ); - return; + $self->write_chunk( $addr, substr($buff,0x20) ); + return 1; } + printf "loading %s at %04x - %04x %02x\n", $path, $addr, $addr+$size-1, $size; - return $self->poke_code( $addr, map { ord($_) } split(//,$buff) ); - return $self->write_chunk( $addr, $buff ); + $self->write_chunk( $addr, $buff ); + return 1; +}; - my $chunk; - my $pos = 0; +=head1 Memory management - while ( my $long = substr($buff,$pos,4) ) { - my @b = split(//, $long, 4); - $chunk .= - ( $b[3] || '' ) . - ( $b[2] || '' ) . - ( $b[1] || '' ) . - ( $b[0] || '' ); - $pos += 4; - } +Orao implements all I/O using mmap addresses. This was main reason why +L was just too slow to handle it. - $self->write_chunk( $addr, $chunk ); +=cut -}; +=head2 read -=head2 save_dump +Read from memory - $orao->save_dump( 'filename', $from, $to ); + $byte = read( $address ); =cut -sub save_dump { +my $keyboard_none = 255; + +my $keyboard = { + 0x87FC => { + 'right' => 16, + 'down' => 128, + 'up' => 192, + 'left' => 224, + 'backspace' => 224, + }, + 0x87FD => sub { + my $self = shift; + if ( $self->key_active('return') ) { +# M6502::_write( 0xfc, 13 ); + warn "return\n"; + return 0; + } elsif ( $self->key_active('left ctrl','right ctrl') ) { + warn "ctrl\n"; + return 16; + } + return $keyboard_none; + }, + 0x87FA => { + 'f4' => 16, + 'f3' => 128, + 'f2' => 192, + 'f1' => 224, + }, + 0x87FB => sub { + my $self = shift; + if ( $self->key_active('space') ) { + warn "space\n"; + return 32; + } elsif ( $self->key_active('left shift','right shift') ) { + warn "shift\n"; + return 16; +# } elsif ( $self->tape ) { +# warn "has tape!"; +# return 0; + } + return $keyboard_none; + }, + 0x87F6 => { + '6' => 16, + 't' => 128, + 'y' => 192, # hr: z + 'r' => 224, + }, + 0x87F7 => { + '5' => 32, + '4' => 16, + }, + 0x87EE => { + '7' => 16, + 'u' => 128, + 'i' => 192, + 'o' => 224, + }, + 0x87EF => { + '8' => 32, + '9' => 16, + }, + 0x87DE => { + '1' => 16, + 'w' => 128, + 'q' => 192, + 'e' => 224, + }, + 0x87DF => { + '2' => 32, + '3' => 16, + }, + 0x87BE => { + 'm' => 16, + 'k' => 128, + 'j' => 192, + 'l' => 224, + }, + 0x87BF => { + ',' => 32, # < + '.' => 16, # > + }, + 0x877E => { + 'z' => 16, # hr:y + 's' => 128, + 'a' => 192, + 'd' => 224, + }, + 0x877F => { + 'x' => 32, + 'c' => 16, + }, + 0x86FE => { + 'n' => 16, + 'g' => 128, + 'h' => 192, + 'f' => 224, + }, + 0x86FF => { + 'b' => 32, + 'v' => 16, + }, + 0x85FE => { + '<' => 16, # : + '\\' => 128, # ¾ + '\'' => 192, # æ + ';' => 224, # è + }, + 0x85FF => { + '/' => 32, + 'f11' => 16, # ^ + }, + 0x83FE => { + 'f12' => 16, # ; + '[' => 128, # ¹ + ']' => 192, # ð + 'p' => 224, + }, + 0x83FF => { + '-' => 32, + '0' => 16, + }, +}; + +sub read { my $self = shift; + my ($addr) = @_; + die "address over 64k: $addr" if ( $addr > 0xffff ); + my $byte = $mem[$addr]; + confess sprintf("can't find memory at address %04x",$addr) unless defined($byte); + warn sprintf("# Orao::read(%04x) = %02x\n", $addr, $byte) if $self->trace; - my ( $path, $from, $to ) = @_; + # keyboard - $from ||= 0; - $to ||= 0xffff; + if ( defined( $keyboard->{$addr} ) ) { + warn sprintf("keyboard port: %04x\n",$addr) if $self->trace; + + my $ret = $keyboard_none; + my $r = $keyboard->{$addr} || confess "no definition for keyboard port found"; + if ( ref($r) eq 'CODE' ) { + $ret = $r->($self); + } else { + foreach my $k ( keys %$r ) { + my $return = 0; + if ( $self->key_active($k) ) { + warn "key '$k' is active\n"; + $return ||= $r->{$k}; + } + $ret = $return if $return; + } + } + warn sprintf("keyboard port: %04x code: %d\n",$addr,$ret) if ( $ret != $keyboard_none ); + return $ret; + } - open(my $fh, '>', $path) || die "can't open $path: $!"; - print $fh $self->read_chunk( $from, $to ); - close($fh); + if ( $addr == 0x87ff ) { + return $self->read_tape; + } - my $size = -s $path; - warn sprintf "saved %s %d %x bytes\n", $path, $size, $size; +# $self->mmap_pixel( $addr, 0, $byte, 0 ) if $self->show_mem; + return $byte; } -=head2 hexdump +=head2 write - $orao->hexdump( $address ); +Write into emory + + write( $address, $byte ); =cut -sub hexdump { +sub write { my $self = shift; - my $a = shift; - return sprintf(" %04x %s\n", $a, - join(" ", - map { - sprintf( "%02x", $_ ) - } $self->ram( $a, $a+8 ) - ) - ); -} + my ($addr,$byte) = @_; + warn sprintf("# Orao::write(%04x,%02x)\n", $addr, $byte) if $self->trace; -=head2 prompt + if ( $addr == 0x8800 ) { + $self->write_tape( $byte ); + warn sprintf "sound ignored: %x\n", $byte; + } - $orao->prompt( $address, $last_command ); + if ( $addr > 0xafff ) { + confess sprintf "write access 0x%04x > 0xafff aborting\n", $addr; + } -=cut + $self->render_vram if ( $addr >= 0x6000 && $addr <= 0x7fff ); -sub prompt { - my $self = shift; - my $a = shift; - my $last = shift; - print STDERR $self->hexdump( $a ), - $last ? "[$last] " : '', - "> "; - my $in = ; - chomp($in); - $in ||= $last; - $last = $in; - return split(/\s+/, $in) if $in; + $self->mmap_pixel( $addr, $byte, 0, 0 ) if $self->show_mem; +# $mem[$addr] = $byte; + return; } -=head1 Memory management +=head1 Architecture specific -Orao implements all I/O using mmap addresses. This was main reason why -L was just too slow to handle it. +=head2 render_vram + +Render one frame of video ram + + $self->render_vram; =cut -=head2 read +sub render_vram { + my $self = shift; -Read from memory +# my $pixels = pack("C*", map { $flip[$_] } @mem[ 0x6000 .. 0x7fff ]); +# my $pixels = pack("C*", map { $flip[$_] } $self->ram( 0x6000, 0x7fff )); +# my $pixels = M6502::mem_peek_region( 0x6000, 0x7fff ); + my $pixels = pack('C*', map { $flip[$_] } unpack('C*', M6502::mem_peek_region( 0x6000, 0x7fff ) ) ); + + my $vram = SDL::Surface->new( + -width => 256, + -height => 256, + -depth => 1, # 1 bit per pixel + -pitch => 32, # bytes per line + -from => $pixels, + ); + $vram->set_colors( 0, $black, $white ); - $byte = read( $address ); + $self->render_frame( $vram ); +} + +=head2 cpu_PC + +Helper metod to set or get PC for current architecture =cut -sub read { - my $self = shift; - my ($addr) = @_; - my $byte = $mem[$addr]; - warn "# Orao::read(",dump(@_),") = ",dump( $byte ),"\n" if $self->debug; - $self->mmap_pixel( $addr, 0, $byte, 0 ); - return $byte; +sub cpu_PC { + my ( $self, $addr ) = @_; + if ( defined($addr) ) { + $PC = $addr; + warn sprintf("running from PC %04x\n", $PC); + }; + return $PC; } -=head2 write -Write into emory +=head2 _init_callbacks - write( $address, $byte ); +Mark memory areas for which we want to get callbacks to perl =cut -sub write { +sub _init_callbacks { my $self = shift; - warn "# Orao::write(",dump(@_),")\n" if $self->debug; - my ($addr,$byte) = @_; + warn "set calbacks to perl for memory areas...\n"; - if ( $addr >= 0x6000 && $addr < 0x8000 ) { - $self->vram( $addr - 0x6000 , $byte ); - } + # don't call for anything + M6502::set_all_callbacks( 0x00 ); - if ( $addr > 0xafff ) { - warn sprintf "access to %04x above affff aborting\n", $addr; - return -1; + # video ram +# M6502::set_write_callback( $_ ) foreach ( 0x6000 .. 0x7fff ); + # keyboard + M6502::set_read_callback( $_ ) foreach ( keys %$keyboard ); + # tape + M6502::set_read_callback( 0x87ff ); + M6502::set_write_callback( 0x8800 ); + + my $map = ''; + foreach ( 0 .. 0xffff ) { + my $cb = M6502::get_callback( $_ ); + $map .= sprintf( "%04x: %02x\n", $_, $cb ) if $cb; } - if ( $addr == 0x8800 ) { - warn sprintf "sound ignored: %x\n", $byte; - } - - $self->mmap_pixel( $addr, $byte, 0, 0 ); - - $mem[$addr] = $byte; - return; + warn "callback map:\n$map\n"; } +=head1 SEE ALSO + +L, L, L, L =head1 AUTHOR Dobrica Pavlinusic, C<< >> -=head1 BUGS - =head1 ACKNOWLEDGEMENTS See also L which is source of all