smryan@garth.UUCP (Steven Ryan) (11/01/88)
>and share it in rotation. And, yes, each of the PP's is a (more or less) >general purpose processor (people have written PacMan-like games, baseball, On NOS, most of operating system consists PP programs that are shuttled in and out of the PPs. NOS is interesting case of distributing a program among a variety of dissimilar processors. NOS/VE (180 state) has gone back to just using them as device drivers. >memory location 0 (what?! Dereference NULL?!), the PP's scan all jobs >location 0's, see the change, and do it. You can optionally be suspended >from execution while the I/O is being done. MTR used to scan, but nowadays, the program must use an explicit exchange jump (sorta an interrupt) to ensure the request is seen.