--- a/hws/hw09.tex	Sun Nov 15 00:33:16 2020 +0000
+++ b/hws/hw09.tex	Mon Nov 16 01:49:24 2020 +0000
@@ -64,7 +64,14 @@
   syntax tree? Give some simple examples for each of them.
 
 
+\item Give a description of how the Brzozowski matcher works. 
+  The description should be coherent and logical.
 
+\item Give a description of how a compiler for the While-language can
+  be implemented. You should assume you are producing code for the JVM.
+  The description should be coherent and logical.
+
+  
 \item \POSTSCRIPT  
 
 %  \item It is true (I confirmed it) that