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use warnings; |
use warnings; |
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use strict; |
use strict; |
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use Carp; |
use Carp qw/confess/; |
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use lib './lib'; |
use lib './lib'; |
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#use Time::HiRes qw(time); |
#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; |
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use base qw(Class::Accessor M6502 Screen); |
use base qw(Class::Accessor M6502 Screen Prefs); |
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__PACKAGE__->mk_accessors(qw(debug trace run_for mem_dump trace)); |
__PACKAGE__->mk_accessors(qw(run_for)); |
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=head1 NAME |
=head1 NAME |
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=head2 init |
=head2 init |
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36 |
Start emulator |
Start emulator, open L<Screen>, load initial ROM images, and render memory |
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=cut |
=cut |
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our $orao; |
our $orao; |
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42 |
our $PC = 0x1000; |
select(STDERR); $| = 1; |
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sub init { |
sub init { |
45 |
my $self = shift; |
my $self = shift; |
46 |
warn "Orao calling upstream init\n"; |
warn "Orao calling upstream init\n"; |
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$self->SUPER::init( $self, @_ ); |
$self->SUPER::init( $self, @_ ); |
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49 |
warn "staring Orao $Orao::VERSION emulation\n"; |
warn "Orao $Orao::VERSION emulation starting\n"; |
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$self->open_screen; |
$self->open_screen; |
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$self->load_rom({ |
$self->load_rom({ |
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0xE000 => 'rom/CRT12.ROM', |
0xE000 => 'rom/CRT12.ROM', |
56 |
}); |
}); |
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$PC = 0xDD11; # BC |
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# $PC = 0xC274; # MC |
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$orao = $self; |
$orao = $self; |
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# $self->prompt( 0x1000 ); |
# $self->prompt( 0x1000 ); |
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warn "rendering memory map\n"; |
my ( $trace, $debug ) = ( $self->trace, $self->debug ); |
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$self->trace( 0 ); |
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$self->debug( 0 ); |
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if ( $self->show_mem ) { |
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warn "rendering memory map\n"; |
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my @mmap = ( |
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0x0000, 0x03FF, 'nulti blok', |
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0x0400, 0x5FFF, 'korisnički RAM (23K)', |
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0x6000, 0x7FFF, 'video RAM', |
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0x8000, 0x9FFF, 'sistemske lokacije', |
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0xA000, 0xAFFF, 'ekstenzija', |
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0xB000, 0xBFFF, 'DOS', |
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0xC000, 0xDFFF, 'BASIC ROM', |
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0xE000, 0xFFFF, 'sistemski ROM', |
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); |
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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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my @mmap = ( |
} else { |
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0x0000, 0x03FF, 'nulti blok', |
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0x0400, 0x5FFF, 'korisnički RAM (23K)', |
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0x6000, 0x7FFF, 'video RAM', |
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0x8000, 0x9FFF, 'sistemske lokacije', |
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0xA000, 0xAFFF, 'ekstenzija', |
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0xB000, 0xBFFF, 'DOS', |
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0xC000, 0xDFFF, 'BASIC ROM', |
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0xE000, 0xFFFF, 'sistemski ROM', |
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); |
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foreach my $i ( 0 .. $#mmap / 3 ) { |
warn "rendering video memory\n"; |
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my $o = $i * 3; |
for my $a ( 0x6000 .. 0x7fff ) { |
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my ( $from, $to, $desc ) = @mmap[$o,$o+1,$o+2]; |
$self->vram( $a - 0x6000, $mem[$a] ); |
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printf "%04x - %04x - %s\n", $from, $to, $desc; |
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for my $a ( $from .. $to ) { |
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$orao->read( $a ); |
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} |
} |
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$self->sync; |
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} |
} |
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$self->sync; |
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warn "Orao init finished\n"; |
$self->trace( $trace ); |
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$self->debug( $debug ); |
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#( $A, $P, $X, $Y, $S, $IPeriod ) = ( 1, 2, 3, 4, 5, 6 ); |
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warn "Orao init finished", |
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$self->trace ? ' trace' : '', |
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$self->debug ? ' debug' : '', |
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"\n"; |
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} |
} |
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=cut |
=cut |
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sub _write_chunk { |
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my $self = shift; |
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my ( $addr, $chunk ) = @_; |
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$self->write_chunk( $addr, $chunk ); |
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my $end = $addr + length($chunk); |
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my ( $f, $t ) = ( 0x6000, 0x7fff ); |
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if ( $end < $f || $addr >= $t ) { |
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warn "skip vram update\n"; |
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return; |
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}; |
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$f = $addr if ( $addr > $f ); |
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$t = $end if ( $end < $t ); |
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warn sprintf("refresh video ram %04x-%04x\n", $f, $t); |
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foreach my $a ( $f .. $t ) { |
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$self->vram( $a - 0x6000 , $mem[ $a ] ); |
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} |
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} |
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sub load_oraoemu { |
sub load_oraoemu { |
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my $self = shift; |
my $self = shift; |
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my ( $path, $addr ) = @_; |
my ( $path, $addr ) = @_; |
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if ( $size == 65538 ) { |
if ( $size == 65538 ) { |
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$addr = 0; |
$addr = 0; |
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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, $size; |
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$self->write_chunk( $addr, substr($buff,2) ); |
$self->_write_chunk( $addr, substr($buff,2) ); |
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return; |
return; |
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} elsif ( $size == 32800 ) { |
} elsif ( $size == 32800 ) { |
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$addr = 0; |
$addr = 0; |
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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, $size; |
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#$self->write_chunk( $addr, substr($buff,0x20) ); |
$self->_write_chunk( $addr, substr($buff,0x20) ); |
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$self->poke_code( $addr, map { ord($_) } split(//,substr($buff,0x20)) ); |
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return; |
return; |
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} |
} |
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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; |
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return $self->poke_code( $addr, map { ord($_) } split(//,$buff) ); |
return $self->_write_chunk( $addr, $buff ); |
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return $self->write_chunk( $addr, $buff ); |
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my $chunk; |
my $chunk; |
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$pos += 4; |
$pos += 4; |
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} |
} |
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$self->write_chunk( $addr, $chunk ); |
$self->_write_chunk( $addr, $chunk ); |
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}; |
}; |
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join(" ", |
join(" ", |
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map { |
map { |
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sprintf( "%02x", $_ ) |
sprintf( "%02x", $_ ) |
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} $self->ram( $a, $a+8 ) |
} @mem[ $a .. $a+8 ] |
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) |
) |
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); |
); |
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} |
} |
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=head2 prompt |
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$orao->prompt( $address, $last_command ); |
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=cut |
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sub prompt { |
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my $self = shift; |
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my $a = shift; |
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my $last = shift; |
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print STDERR $self->hexdump( $a ), |
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$last ? "[$last] " : '', |
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"> "; |
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my $in = <STDIN>; |
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chomp($in); |
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$in ||= $last; |
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$last = $in; |
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return split(/\s+/, $in) if $in; |
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} |
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=head1 Memory management |
=head1 Memory management |
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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 |
260 |
my $self = shift; |
my $self = shift; |
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my ($addr) = @_; |
my ($addr) = @_; |
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my $byte = $mem[$addr]; |
my $byte = $mem[$addr]; |
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warn "# Orao::read(",dump(@_),") = ",dump( $byte ),"\n" if $self->debug; |
warn sprintf("# Orao::read(%04x) = %02x\n", $addr, $byte) if $self->trace; |
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$self->mmap_pixel( $addr, 0, $byte, 0 ); |
$self->mmap_pixel( $addr, 0, $byte, 0 ); |
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return $byte; |
return $byte; |
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} |
} |
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sub write { |
sub write { |
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my $self = shift; |
my $self = shift; |
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warn "# Orao::write(",dump(@_),")\n" if $self->debug; |
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my ($addr,$byte) = @_; |
my ($addr,$byte) = @_; |
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warn sprintf("# Orao::write(%04x,%02x)\n", $addr, $byte) if $self->trace; |
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if ( $addr >= 0x6000 && $addr < 0x8000 ) { |
if ( $addr >= 0x6000 && $addr < 0x8000 ) { |
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$self->vram( $addr - 0x6000 , $byte ); |
$self->vram( $addr - 0x6000 , $byte ); |
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} |
} |
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if ( $addr > 0xafff ) { |
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warn sprintf "access to %04x above affff aborting\n", $addr; |
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return -1; |
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} |
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if ( $addr == 0x8800 ) { |
if ( $addr == 0x8800 ) { |
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warn sprintf "sound ignored: %x\n", $byte; |
warn sprintf "sound ignored: %x\n", $byte; |
287 |
} |
} |
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289 |
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if ( $addr > 0xafff ) { |
290 |
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confess sprintf "write access 0x%04x > 0xafff aborting\n", $addr; |
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} |
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$self->mmap_pixel( $addr, $byte, 0, 0 ); |
$self->mmap_pixel( $addr, $byte, 0, 0 ); |
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$mem[$addr] = $byte; |
$mem[$addr] = $byte; |
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return; |
297 |
} |
} |
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=head1 Command Line |
300 |
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Command-line debugging intrerface is implemented for communication with |
302 |
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emulated device |
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=head2 prompt |
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306 |
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$orao->prompt( $address, $last_command ); |
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=cut |
309 |
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310 |
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my $last = 'r 1'; |
311 |
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sub prompt { |
313 |
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my $self = shift; |
314 |
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$self->app->sync; |
315 |
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my $a = shift; |
316 |
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print STDERR $self->hexdump( $a ), |
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$last ? "[$last] " : '', |
318 |
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"> "; |
319 |
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my $in = <STDIN>; |
320 |
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chomp($in); |
321 |
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warn "## prompt got: $in\n" if $self->debug; |
322 |
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$in ||= $last; |
323 |
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$last = $in; |
324 |
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return split(/\s+/, $in) if $in; |
325 |
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} |
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=head2 cli |
328 |
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329 |
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$orao->cli(); |
330 |
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331 |
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=cut |
332 |
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sub cli { |
334 |
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my $self = shift; |
335 |
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my $a = $PC || confess "no pc?"; |
336 |
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while ( my @v = $self->prompt( $a, $last ) ) { |
337 |
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my $c = shift @v; |
338 |
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my $v = shift @v; |
339 |
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$v = hex($v) if $v && $v =~ m/^[0-9a-f]+$/; |
340 |
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@v = map { hex($_) } @v; |
341 |
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printf "## a: %04x parsed cli: c:%s v:%s %s\n", $a, $c, ($v || 'undef'), join(",",@v) if $self->debug; |
342 |
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if ( $c =~ m/^[qx]/i ) { |
343 |
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exit; |
344 |
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} elsif ( $c eq '?' ) { |
345 |
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my $t = $self->trace ? 'on' : 'off' ; |
346 |
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my $d = $self->debug ? 'on' : 'off' ; |
347 |
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warn <<__USAGE__; |
348 |
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Usage: |
349 |
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x|q\t\texit |
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e 6000 6010\tdump memory, +/- to walk forward/backward |
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m 1000 ff 00\tput ff 00 on 1000 |
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j|u 1000\t\tjump (change pc) |
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r 42\t\trun 42 instruction opcodes |
355 |
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t\t\ttrace [$t] |
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d\t\tdebug [$d] |
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__USAGE__ |
359 |
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warn sprintf(" PC: %04x A:%02x P:%02x X:%02x Y:%02x S:%02x\n", $PC, $A, $P, $X, $Y, $S); |
360 |
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} elsif ( $c =~ m/^e/i ) { |
361 |
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$a = $v if defined($v); |
362 |
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my $to = shift @v; |
363 |
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$to = $a + 32 if ( ! $to || $to <= $a ); |
364 |
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my $lines = int( ($to - $a + 8) / 8 ); |
365 |
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printf "## e %04x %04x (%d bytes) lines: %d\n", $a, $to, ($to-$a), $lines; |
366 |
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while ( --$lines ) { |
367 |
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print $self->hexdump( $a ); |
368 |
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$a += 8; |
369 |
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} |
370 |
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$last = '+'; |
371 |
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} elsif ( $c =~ m/^\+/ ) { |
372 |
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$a += 8; |
373 |
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} elsif ( $c =~ m/^\-/ ) { |
374 |
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$a -= 8; |
375 |
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} elsif ( $c =~ m/^m/i ) { |
376 |
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$a = $v; |
377 |
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$self->poke_code( $a, @v ); |
378 |
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printf "poke %d bytes at %04x\n", $#v + 1, $a; |
379 |
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$last = '+'; |
380 |
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} elsif ( $c =~ m/^l/i ) { |
381 |
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my $to = shift @v || 0x1000; |
382 |
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$a = $to; |
383 |
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$self->load_oraoemu( $v, $a ); |
384 |
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$last = ''; |
385 |
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} elsif ( $c =~ m/^s/i ) { |
386 |
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$self->save_dump( $v || 'mem.dump', @v ); |
387 |
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$last = ''; |
388 |
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} elsif ( $c =~ m/^r/i ) { |
389 |
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$run_for = $v || 1; |
390 |
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print "run_for $run_for instructions\n"; |
391 |
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last; |
392 |
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} elsif ( $c =~ m/^(u|j)/ ) { |
393 |
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my $to = $v || $a; |
394 |
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printf "set pc to %04x\n", $to; |
395 |
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$PC = $to; # remember for restart |
396 |
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$run_for = 1; |
397 |
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$last = sprintf('m %04x', $to); |
398 |
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last; |
399 |
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} elsif ( $c =~ m/^t/ ) { |
400 |
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$self->trace( not $self->trace ); |
401 |
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print "trace ", $self->trace ? 'on' : 'off', "\n"; |
402 |
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} elsif ( $c =~ m/^d/ ) { |
403 |
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$self->debug( not $self->debug ); |
404 |
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print "debug ", $self->debug ? 'on' : 'off', "\n"; |
405 |
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} else { |
406 |
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warn "# ignore $c\n"; |
407 |
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last; |
408 |
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} |
409 |
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} |
410 |
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411 |
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412 |
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} |
413 |
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414 |
=head1 AUTHOR |
=head1 AUTHOR |
415 |
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|