There's at least one on that list that's (at least in my experience) gone from relatively mainstream to esoteric - self-modification.
Back in the day when both memory and clock cycles were very precious, it wasn't unknown to use self-modifying code as a performance optimisation trick. I did it at least once in the late 80s, when I was working on comms software that had to be as fast as possible in order to avoid missing incoming data.
There was a check that needed to be done on every byte - I think it was whether I was now processing graphics characters or not - but the check was taking valuable time, and the value didn't change very often.
So the most efficient way I found to do it was to wait until I got a "switch to/from graphics" byte in the input stream and then update the instruction at a given location to either be "unconditional jump to graphics routine" or a "no operation (NOP)", which passed straight through to the routine for normal characters.
It was a horrible hack, but it worked.
Thankfully, I've not felt the need to even consider this approach for the past 20 years.
Back in the day when both memory and clock cycles were very precious, it wasn't unknown to use self-modifying code as a performance optimisation trick. I did it at least once in the late 80s, when I was working on comms software that had to be as fast as possible in order to avoid missing incoming data.
There was a check that needed to be done on every byte - I think it was whether I was now processing graphics characters or not - but the check was taking valuable time, and the value didn't change very often.
So the most efficient way I found to do it was to wait until I got a "switch to/from graphics" byte in the input stream and then update the instruction at a given location to either be "unconditional jump to graphics routine" or a "no operation (NOP)", which passed straight through to the routine for normal characters.
It was a horrible hack, but it worked.
Thankfully, I've not felt the need to even consider this approach for the past 20 years.