30 Dec
2017
30 Dec
'17
11:42 p.m.
On 2017-12-30 21:15, Robert Armstrong wrote:
Well, you do know that ASTs are synchronous with instruction execution,
right? ASTs are a pure software concept, so they are always synchronous
from that point of view. However, they are asynchronous in regard to
your application flow of execution.
Interrupts on the other hand are truly asynchronous to instruction
execution.
In RSX you have both ASTs and SSTs. Did you know that one? :-)
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
An AST is an
?asynchronous system trap?, otherwise known as an interrupt
routine.
? Rob?s absolutely right about what the acronym means, but I always
found the idea of an ?asynchronous trap? to be an oxymoron.? When I was
in school, ?traps? were synchronous with instruction execution, and
?interrupts? were asynchronous.?? It should be a ?SST?, not an ?AST?.
It was always one of my pet peeves about VMS J