X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=doc%2Ftour.texi;fp=doc%2Ftour.texi;h=39483a32011d6f64c0a43ac13277105d10436f0b;hb=601d95be13aa18bfdea51930f86cccdde1c01f5e;hp=d1147dde6b0e91d891d5192cbf6bcc841781b920;hpb=24ff01c3b69360c8a7c01d0959f4148688cfeb7a;p=pintos-anon

diff --git a/doc/tour.texi b/doc/tour.texi
index d1147dd..39483a3 100644
--- a/doc/tour.texi
+++ b/doc/tour.texi
@@ -782,7 +782,11 @@ In Pintos, @func{intr_init} in @file{threads/interrupt.c} sets up the
 IDT so that each entry points to a unique entry point in
 @file{threads/intr-stubs.S} named @func{intr@var{NN}_stub}, where
 @var{NN} is the interrupt number in
-hexadecimal.  Because the CPU doesn't give
+hexadecimal.@footnote{@file{threads/intr-stubs.S} is so repetitive
+that it is actually generated by a Perl script,
+@file{threads/intr-stubs.pl}.  Thus, you will actually find
+@file{threads/intr-stubs.S} in your @file{threads/build/threads}
+directory, not in plain @file{threads}.}  Because the CPU doesn't give
 us any other way to find out the interrupt number, this entry point
 pushes the interrupt number on the stack.  Then it jumps to
 @func{intr_entry}, which pushes all the registers that the processor