public RubyObject mdump() { RubyTime obj = this; DateTime dateTime = obj.dt.toDateTime(DateTimeZone.UTC); byte dumpValue[] = new byte[8]; int pe = 0x1 << 31 | ((obj.gmt().isTrue()) ? 0x1 : 0x0) << 30 | (dateTime.getYear() - 1900) << 14 | (dateTime.getMonthOfYear() - 1) << 10 | dateTime.getDayOfMonth() << 5 | dateTime.getHourOfDay(); int se = dateTime.getMinuteOfHour() << 26 | dateTime.getSecondOfMinute() << 20 | (dateTime.getMillisOfSecond() * 1000 + (int) usec); // dump usec, not msec for (int i = 0; i < 4; i++) { dumpValue[i] = (byte) (pe & 0xFF); pe >>>= 8; } for (int i = 4; i < 8; i++) { dumpValue[i] = (byte) (se & 0xFF); se >>>= 8; } return RubyString.newString(obj.getRuntime(), new ByteList(dumpValue)); }