X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=doc%2Fstandards.texi;h=fd25730e370c1ca1b6506ef791cf2d0b241f82c0;hb=9818aeac330907b5b314ac58c861d3dba8b15e5e;hp=7af266e9c10b9cecb5be44f8ae190acf9a8048ef;hpb=c574297b7acbcbf04d128113cf91dbbcc1730f9c;p=pintos-anon

diff --git a/doc/standards.texi b/doc/standards.texi
index 7af266e..fd25730 100644
--- a/doc/standards.texi
+++ b/doc/standards.texi
@@ -39,13 +39,21 @@ follows the @uref{http://www.gnu.org/prep/standards_toc.html, , GNU
 Coding Standards}.  We encourage you to follow the applicable parts of
 them too, especially chapter 5, ``Making the Best Use of C.''  Using a
 different style won't cause actual problems, but it's ugly to see
-gratuitous differences in style from one function to another.
+gratuitous differences in style from one function to another.  If your
+code is too ugly, it will cost you points.
 
-Pintos comments sometimes refer to outside standards or
+Pintos comments sometimes refer to external standards or
 specifications by writing a name inside square brackets, like this:
 @code{[IA32-v3]}.  These names refer to the reference names used in
 this documentation (@pxref{References}).
 
+If you remove existing Pintos code, please delete it from your source
+file entirely.  Don't just put it into a comment or a conditional
+compilation directive, because that makes the resulting code hard to
+read.  We're only going to do a compile in the directory for the current
+project, so you don't need to make sure that the previous projects also
+compile.
+
 @node Conditional Compilation
 @section Conditional Compilation
 
@@ -80,6 +88,13 @@ and off with a compile-time directive.  You must use the macro name we
 specify for that part.  @xref{Problem 1-4 Advanced Scheduler}, for
 details.
 
+@item
+Problem 3-2, paging to and from disk.  Your page replacement policy must
+default to LRU-like replacement, but we must be able to choose a random
+replacement policy with a compile-time directive.  You must use the
+macro name we specify for that part.  @xref{Problem 3-2 Paging To and
+From Disk}, for details.
+
 @item
 Code written for extra credit may be included conditionally.  If the
 extra credit code changes the normally expected functionality of the