Better yet: get the source code of this tool. I tried contacting Tatsuyuki Satoh but his last known email address isn't valid anymore.
At the moment, the next thing on Sean's TODO regarding HD388xx dumping is trying to dump known HD44801 chips(he didn't have any in his possession so we got a couple of them from ebay). Then by probing the pins while the tool is dumping it, dumping method can be reverse engineered.
