3 ms·

> along with the evil context switch primitives But you weren't expected to understand them! ;) Here's your own words now: https://news.ycombinator.com/item

• Taniwha 5y ago
  That comment is only partially related to those primitives - the primitives are used in a bunch of other places with more obvious functionality - it's the doing something strange because the SSWAP is set that you're not supposed to understand - where that bit is set is miles away and not obviously connected (plus there's that "return(1)" from a routine that no one who appears to call it uses the result). V7's save()/restore() are more portable and easier to understand