public DecodedString Decode(SpanLocation location)
{
var position = 0;
bool end = false;
var builder = new StringBuilder();
log.Verbose($"\tDecoding string from bytes {location.ToString()}");
while (!end)
{
var value = Bits.MakeWord(location.Bytes.Slice(position, 2));
end = (value & 0x8000) > 0;
log.Verbose($"\tDecoding {value:X} {Bits.BreakIntoZscii(value)}");
for (var i = 10; i >= 0; i -= 5)
{
var zchar = (value >> i) & 0x1F;
var(letter, abbreviation) = Translate(zchar);
if (letter.HasValue)
{
builder.Append(letter.Value);
}
else if (abbreviation != null)
{
builder.Append(abbreviation);
}
}
position += 2;
}
state = State.A0;
return(new DecodedString
{
Text = builder.ToString(),
BytesConsumed = position
});
}
