Reply to post: Re: Bits of this are really cool

Re: Bits of this are really cool

> reading about the memory key thing on the IBM 306

Yup. The IBM S/370 mainframes that I used to (sort of) program under TPF had something very very similar to this in order to stop corewalkers. Of course, you didn't worry so much about malicious code with those as everything had to go through our pretty rigourous QA procedure..