Basic interrupt handling and functions for turning interrupts on and
off.
-@item intr-stubs.pl
+@item intr-stubs.S
@itemx intr-stubs.h
-A Perl program that outputs assembly for low-level interrupt handling.
+Assembly code for low-level interrupt handling.
@item synch.c
@itemx synch.h
first should return immediately.
Calling @func{thread_join} on an thread that is not the caller's
-child should cause the caller to return immediately.
+child should cause the caller to return immediately. For this purpose,
+children are not inherited, that is, if @var{A} has child @var{B} and
+@var{B} has child @var{C}, then @var{A} always returns immediately
+should it try to join @var{C}, even if @var{B} is dead.
Consider all the ways a join can occur: nested joins (@var{A} joins
@var{B}, then @var{B} joins @var{C}), multiple joins (@var{A} joins
if @func{thread_join} is called on a thread that has not yet been
scheduled for the first time? You should handle all of these cases.
Write test code that demonstrates the cases your join works for.
-Don't overdo the output volume, please!
Be careful to program this function correctly. You will need its
functionality for project 2.