
diff -r 1276d7013c2c -r 6937caaff1d9 slides/slides08.tex
--- a/slides/slides08.tex	Wed Nov 15 00:17:15 2017 +0000
+++ b/slides/slides08.tex	Wed Nov 15 00:28:25 2017 +0000
@@ -498,6 +498,43 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%   
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\begin{frame}[c,fragile]
+\frametitle{Compiling Ifs}
+
+For example
+
+\begin{lstlisting}[mathescape,numbers=none,language=While]
+if 1 = 1 then x := 2 else y := 3
+\end{lstlisting}
+
+
+\begin{center}
+\begin{lstlisting}[mathescape,language=JVMIS,numbers=none]
+   ldc 1
+   ldc 1
+   if_icmpne L_ifelse $\quad\tikz[remember picture] \node (C) {\mbox{}};$
+   ldc 2
+   istore 0
+   goto L_ifend $\quad\tikz[remember picture] \node (A) {\mbox{}};$
+L_ifelse: $\quad\tikz[remember picture] \node[] (D) {\mbox{}};$
+   ldc 3
+   istore 1
+L_ifend: $\quad\tikz[remember picture] \node[] (B) {\mbox{}};$
+\end{lstlisting}
+\end{center}
+
+\begin{tikzpicture}[remember picture,overlay]
+  \draw[->,very thick] (A) edge [->,to path={-- ++(10mm,0mm) 
+           -- ++(0mm,-17.3mm) |- (\tikztotarget)},line width=1mm] (B.east);
+  \draw[->,very thick] (C) edge [->,to path={-- ++(10mm,0mm) 
+           -- ++(0mm,-17.3mm) |- (\tikztotarget)},line width=1mm] (D.east);
+\end{tikzpicture}
+
+\end{frame}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \begin{frame}[t]
 \frametitle{Compiling BExps}
 
@@ -641,32 +678,98 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\begin{frame}[t]
-\frametitle{Compiling Writes}
+\begin{frame}[c,fragile]
+\frametitle{Compiling Whiles}
+
+For example
 
-{\Large\bl{write $x$}}
+\begin{lstlisting}[mathescape,numbers=none,language=While]
+while x <= 10 do x := x + 1
+\end{lstlisting}
+
 
 \begin{center}
-\small\bl{\begin{tabular}{l}
-.method public static write(I)V\hspace{1cm}\textcolor{black}{(library function)}\\ 
-\;\;    .limit locals 5 \\
-\;\;    .limit stack 5 \\
-\;\;    iload 0 \\
-\;\;    getstatic java/lang/System/out Ljava/io/PrintStream;\\ 
-\;\;    swap \\
-\;\;    invokevirtual java/io/PrintStream/println(I)V \\
-\;\;    return \\
-.end method\bigskip\bigskip\\
-%
-\normalsize
-iload $E(x)$\\
-invokestatic write(I)V\\
-\end{tabular}}
+\begin{lstlisting}[mathescape,language=JVMIS,numbers=none]
+L_wbegin: $\quad\tikz[remember picture] \node[] (LB) {\mbox{}};$
+   iload 0
+   ldc 10
+   if_icmpgt L_wend $\quad\tikz[remember picture] \node (LC) {\mbox{}};$
+   iload 0
+   ldc 1
+   iadd
+   istore 0
+   goto L_wbegin $\quad\tikz[remember picture] \node (LA) {\mbox{}};$
+L_wend: $\quad\tikz[remember picture] \node[] (LD) {\mbox{}};$
+\end{lstlisting}
 \end{center}
 
+\begin{tikzpicture}[remember picture,overlay]
+  \draw[->,very thick] (LA) edge [->,to path={-- ++(12mm,0mm) 
+           -- ++(0mm,17.3mm) |- (\tikztotarget)},line width=1mm] (LB.east);
+  \draw[->,very thick] (LC) edge [->,to path={-- ++(12mm,0mm) 
+           -- ++(0mm,-17.3mm) |- (\tikztotarget)},line width=1mm] (LD.east);
+\end{tikzpicture}
+
 \end{frame}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
 
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\begin{frame}[c,fragile]
+\frametitle{Compiling Writes}
+
+\small
+\begin{lstlisting}[language=JVMIS,mathescape,
+                   numbers=none,xleftmargin=-6mm]
+.method public static write(I)V 
+  .limit locals 1 
+  .limit stack 2 
+  getstatic java/lang/System/out 
+                            Ljava/io/PrintStream; 
+  iload 0
+  invokevirtual java/io/PrintStream/println(I)V 
+  return 
+.end method
+
+
+
+iload $E(x)$ 
+invokestatic XXX/XXX/write(I)V
+\end{lstlisting}
+
+\end{frame}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
+\begin{frame}[c,fragile]
+\frametitle{Compiling Main}
+
+\footnotesize
+\begin{lstlisting}[language=JVMIS,mathescape,
+                   numbers=none,xleftmargin=-6mm]
+.class public XXX.XXX
+.super java/lang/Object
+
+.method public <init>()V
+    aload_0
+    invokenonvirtual java/lang/Object/<init>()V
+    return
+.end method
+
+.method public static main([Ljava/lang/String;)V
+    .limit locals 200
+    .limit stack 200
+
+      $\textit{\ldots{}here comes the compiled code\ldots}$
+
+    return
+.end method
+\end{lstlisting}
+
+\end{frame}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%   
+
+
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \mode<presentation>{
 \begin{frame}[c]




