On Tue, Oct 13, 2020 at 3:31 PM Stephen Adolph <twospru...@gmail.com> wrote:
> Well no word from Ron huh. > I can say, as I'm sure everyone suspects, he is a very clever programmer. > I spent some time taking apart his TEENY.DO loader for TEENY.CO > It is quite a thing. It is a 2 stage loader. First a program simply > coded as hex ascii loads up stage one, which then reads back and loads up > TEENY.CO which is heavily encoded to enable re-location. > I didn't reverse engineer it all; all I needed to do was make a single > byte change in the 2nd stage data, to remove the SIM opcode from the > resulting TEENY.CO. > > I have my own much less fancy loader now that creates NTEENY.CO at 62213, > and runs on NSC800. > > ..Steve > For what it's worth, my recollection from talking to Wilson is that TEENY.EXE loader is Ron's creation. But the original program was "TINY" and TEENY was more about the loader. Though he may have modified it the original TINY beyond just patching it up. I don't know. -- John.
