3 ms·
Hold on “clean room” and “reverse compile dump”. How can it be both? Or is that the point!
by quickthrower2 5y ago
Hold on “clean room” and “reverse compile dump”.
How can it be both? Or is that the point!
- ggm 5y agoHe handed me the dump and explained how to make a printable of the machine code. I then had to hand compile a variable list, and work out the dataflow across the serial port so he could write the spec of the database and record structure and code a server to match. He never saw the original code. All I can remember is wasting a week decoding the bios calls that wrote bytes as 4 bits shifted and masked into the serial port buffer. Because nobody would explain to me what was going on I didn't know what "level" of thing I had. The guy coding the clone had a good laugh at my expense when he explained I'd just documented the CP/M bios calls to do serial i/o... Personally I think his dump was tainted. I suspect a good IPR lawyer could tear him a new one.