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package Games::Emulation::DCPU16::Util;
use strict;
use warnings;
use Exporter 'import';
our @EXPORT_OK = ('format_registers', 'format_memory');
sub format_registers {
my ($registers, $sp, $pc, $o) = @_;
return join("\n",
sprintf("A: 0x%04x X: 0x%04x I: 0x%04x",
$registers->[0], $registers->[3], $registers->[6]),
sprintf("B: 0x%04x Y: 0x%04x J: 0x%04x",
$registers->[1], $registers->[4], $registers->[7]),
sprintf("C: 0x%04x Z: 0x%04x",
$registers->[2], $registers->[5]),
"",
sprintf("SP: 0x%04x PC: 0x%04x O: 0x%04x", $sp, $pc, $o),
"",
);
}
sub format_memory {
my ($memory) = @_;
my $out = '';
my $eliding = 0;
for my $addr (0..int(@$memory / 8)) {
$addr *= 8;
my @values = @{ $memory }[$addr..($addr + 7)];
if (grep { $_ } @values) {
$out .= sprintf("%04x:" . (" %04x" x 8), $addr, @values) . "\n";
$eliding = 0;
}
else {
if (!$eliding) {
$out .= "...\n";
$eliding = 1;
}
}
}
return $out;
}
1;
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