diff --git a/chapter 2.tex b/chapter 2.tex
index d7d2915..5ecdd7a 100644
--- a/chapter 2.tex	
+++ b/chapter 2.tex	
@@ -1,10 +1,31 @@
 \chapter{Instruction Set Architecture}
-\section{Encoding}
+\section{Encoding Schemes}
 \def\minY{0} \def\maxY{0.5}
 \def\minX{-7} \def\maxX{7}
 
-\begin{tikzpicture}
-	\draw (\minX, \minY) -- (\maxX, \minY);
-	\draw (\minX, \minY) -- (\minX, \maxY) node[above] {31}; %{$y$}; Note the $'s, those make something math stylized.
-	\draw (\maxX, \minY) -- (\maxX, \maxY) node[above]{0};
-\end{tikzpicture}
\ No newline at end of file
+\usetikzlibrary{decorations.pathreplacing}
+\begin{figure}[!htb]
+	\begin{tikzpicture}
+		\draw (\minX, \minY) -- (\maxX, \minY);
+		\draw (\minX, \minY) -- (\minX, \maxY) node[above] {31}; %{$y$}; Note the $'s, those make something math stylized.
+		\draw (\maxX, \minY) -- (\maxX, \maxY) node[above] {0};
+		\draw (0, \minY) -- (0, \maxY) node[above] {15};
+		\draw [dotted] ({\maxX / 2}, \minY) -- ({\maxX / 2}, \maxY) node[above] {7};
+		\draw [decorate, decoration={brace, amplitude=1em, mirror}] (\minX, -\maxY) -- (0, -\maxY) node[midway, below=1em] {Op Code (16-bits)};
+		\draw [decorate, decoration={brace, amplitude=1em, mirror}] (0, -\maxY) -- ({\maxX / 2}, -\maxY) node[midway, below=1em] {Destination (8-bits)};
+		\draw [decorate, decoration={brace, amplitude=1em, mirror}] ({\maxX / 2}, -\maxY) -- (\maxX, -\maxY) node[midway, below=1em] {Source (8-bits)};
+	\end{tikzpicture}
+	\caption{Register Based Opcodes}
+\end{figure}
+
+\begin{figure}[!htb]
+	\begin{tikzpicture}
+		\draw (\minX, \minY) -- (\maxX, \minY);
+		\draw (\minX, \minY) -- (\minX, \maxY) node[above] {31}; %{$y$}; Note the $'s, those make something math stylized.
+		\draw (\maxX, \minY) -- (\maxX, \maxY) node[above] {0};
+		\draw (0, \minY) -- (0, \maxY) node[above] {15};
+		\draw [decorate, decoration={brace, amplitude=1em, mirror}] (\minX, -\maxY) -- (0, -\maxY) node[midway, below=1em] {Op Code (16-bits)};
+		\draw [decorate, decoration={brace, amplitude=1em, mirror}] (0, -\maxY) -- (\maxX, -\maxY) node[midway, below=1em] {Near Address (16-bits)};
+	\end{tikzpicture}
+	\caption{Short Valued Opcodes}
+\end{figure}
\ No newline at end of file