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Tamas Rudnai 2020-07-26 15:53:26 -07:00 committed by GitHub
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commit 47c718f5bc
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#!/usr/bin/perl
my $state = 'begin';
my $trk = 0;
my $sec = 0;
my @sectorData = ();
my $reLDA_C08C = qr/LDA\s+\$C08C,X\t0x([8-9A-Fa-f][0-9A-Fa-f])/;
my $reLDY_C08C = qr/LDY\s+\$C08C,X\t0x([0-9A-Fa-f]{2})\t0x([0-9A-Fa-f]{2})\t0x([8-9A-Fa-f][0-9A-F])/;
my $reSTA_0300 = qr/STA\s+\$0300,Y\t0x([0-9A-F]{2})\t0x([0-9A-F]{2})\t0x([0-9A-F]{2})/;
my $reSTA_26Y = qr/STA\s+\(\$26\),Y\t0x([0-9A-F]{2})\t0x([0-9A-F]{2})\t0x([0-9A-F]{2})/;
sub hexdump {
my ($arr) = @_;
for($i = 0; $i < scalar(@{$arr}); $i++) {
if ( $i % 16 == 0 ) {
printf("\n%04X: ", $i);
}
printf("%02X ", @{$arr}[$i]);
}
print "\n";
}
while (<>) {
chomp;
s/[\n\r]+//;
print;
{ # for the redo to avoid print input twice
if ( $state eq 'begin' ) {
if ( /LDA\s+\$C08C,X\t0xD5/ ) {
print "\t marker D5";
$state = 'loaded_D5';
}
}
elsif ( $state eq 'loaded_D5' ) {
if ( /LDA\s+\$C08C,X\t0xAA/ ) {
print "\t marker AA";
$state = 'loaded_AA';
}
elsif ( /$reLDA_C08C/ ) {
$state = 'begin';
redo;
}
}
elsif ( $state eq 'loaded_AA' ) {
if ( /LDA\s+\$C08C,X\t0x96/ ) {
print "\t marker 96";
$state = 'loaded_96';
print "\t; sector marker";
}
elsif ( /$reLDA_C08C/ ) {
$state = 'begin';
redo;
}
}
elsif ( $state eq 'loaded_96' ) {
if ( /$reLDA_C08C/ ) {
print "\t marker v1";
$state = 'loaded_v1';
}
}
elsif ( $state eq 'loaded_v1' ) {
if ( /$reLDA_C08C/ ) {
print "\t marker v2";
$state = 'loaded_v2';
}
}
elsif ( $state eq 'loaded_v2' ) {
if ( /$reLDA_C08C/ ) {
print "\t marker t1:$1";
$trk = hex($1) << 1;
$trk |= 1;
$state = 'loaded_t1';
}
}
elsif ( $state eq 'loaded_t1' ) {
if ( /$reLDA_C08C/ ) {
print "\t marker t2:$1";
$trk &= hex($1);
print "\t; trk:$trk";
$state = 'loaded_t2';
}
}
elsif ( $state eq 'loaded_t2' ) {
if ( /$reLDA_C08C/ ) {
print "\t marker s1:$1";
$sec = hex($1) << 1;
$sec |= 1;
$state = 'loaded_s1';
}
}
elsif ( $state eq 'loaded_s1' ) {
if ( /$reLDA_C08C/ ) {
print "\t marker s2:$1";
$sec &= hex($1);
print "\t; sec:$sec";
$state = 'loaded_s2';
}
}
elsif ( $state eq 'loaded_s2' ) {
if ( /LDA\s+\$C08C,X\t0xD5/ ) {
print "\t marker D5";
$state = 'waitingfor_AA';
}
elsif ( /EOR\s+#\$D5/ ) {
$state = 'begin';
redo;
}
}
elsif ( $state eq 'waitingfor_AA' ) {
if ( /LDA\s+\$C08C,X\t0xAA/ ) {
print "\t marker AA 2";
$state = 'waitingfor_AD';
}
elsif ( /$reLDA_C08C/ ) {
$state = 'begin';
redo;
}
}
elsif ( $state eq 'waitingfor_AD' ) {
if ( /LDA\s+\$C08C,X\t0xAD/ ) {
print "\t marker AD";
$state = 'loaded_AD';
print "\t; sector data marker";
}
elsif ( /EOR\s+#\$D5/ ) {
$state = 'begin';
redo;
}
}
elsif ( $state eq 'loaded_AD' ) {
if ( /$reLDY_C08C/ ) {
print "\t byte read: $3 (t:$trk s:$sec)";
}
elsif ( /$reSTA_0300/ ) {
printf( "\t byte to mem: \$%04X:$1\n", 0x300 + hex($3) );
}
elsif ( /$reSTA_26Y/ ) {
my $y = hex($3);
printf( "\t byte to mem ind: (\$26)+\$%02X:$1\n", $y );
if ($y >= 255) {
$state = 'sector_decode';
}
}
}
elsif ( $state eq 'sector_decode' ) {
if ( /$reSTA_26Y/ ) {
$i = hex($1);
$y = hex($3);
printf( "\t byte to mem ind: (\$26)+\$%02X:$1\n", $y );
$sectorData[$y] = $i;
if ($y >= 255) {
$state = 'sector_decode';
print "\nHEXDUMP track: $trk sector: $sec\n";
hexdump(\@sectorData);
}
}
elsif ( /$reLDA_C08C/ ) {
$state = 'begin';
redo;
}
}
} # for the redo to avoid print input twice
print "\n";
}