Created a basic setup for the figure for the memory layout / map.

chapter 1.tex

@@ -3,7 +3,7 @@ This is an attempt to distill what I know about how computers work into some kin
 \section{Registers}
 Thirty-two general purpose registers are available for program code to use however it wishes. The base name for the general purpose registers is \quotes{r} follows by an unpadded number, such as \quotes{r28}. These numbers do not follow a zero-based index scheme, \quotes{r29} is the twenty-ninth register. Using the base name implies full width, a \quotes{word}, when reading or writing from or to the register respectively.
 
-In addition to the general purpose registers there is also a base pointer (bp), stack pointer (sp) and an instruction pointer (ip). The base pointer and the stack pointer may be set directly using the \hyperref[sec:mov]{mov} instruction, which allows the programmer to set up a stack frame. The instruction pointer can only be set with a branching operation like \hyperref[sec:jmp]{jmp} or a call to a subroutine with the \hyperref[sec:call]{call} instruction. One final register that can only be indirectly set is the \quotes{flags} register. This register, like the others, is one word wide meaning it can store thirty-two flags. Currently only three flags are present, the Zero, Underflow and Overflow flags. These flags are only affected by arthmetic operations and generally read by branching instructions like \hyperref[sec:jmp]{jmp}.
+In addition to the general purpose registers there is also a base pointer (bp), stack pointer (sp) and an instruction pointer (ip). The base pointer and the stack pointer may be set directly using the \hyperref[sec:mov]{mov} instruction, which allows the programmer to set up a stack frame. The instruction pointer can only be set with a branching operation like \hyperref[sec:jmp]{jmp} or a call to a subroutine with the \hyperref[sec:call]{call} instruction. One final register that can only be indirectly set is the \quotes{flags} register. This register, like the others, is one word wide meaning it can store thirty-two flags. Currently only three flags are present, the Zero, Underflow and Overflow flags. These flags are only affected by arithmetic operations and generally read by branching instructions like \hyperref[sec:jmp]{jmp}.
 
 \begin{figure}[h]
 	\begin{tikzpicture}
@@ -51,4 +51,16 @@ In addition to the general purpose registers there is also a base pointer (bp),
 \end{description}
 
 \section{Memory}
-The memory layout is quite simple, much like many modern machines it is a linear memory map. The address bus is thrity-two bits wide, the same width of the data bus, meaning at most there is 2\textsuperscript{32} of addressable memory. Like contemprary machines the top of memory starts at address 0x00000000 and grows downward toward 0xFFFFFFFF.
+The memory layout is quite simple, much like many modern machines it is a linear memory map. The address bus is thirty-two bits wide, the same width of the data bus, meaning at most there is 2\textsuperscript{32} of addressable memory. Like contemporary machines the top of memory starts at address 0x00000000 and grows downward toward 0xFFFFFFFF.
+
+\begin{figure}
+	\begin{tikzpicture}
+		\node [draw, fit={(0,0) (3, 6)}] (memory) {};
+		
+		\draw (memory);
+		\node (top) at (memory.north east)[right] {0x00000000};
+		\node at (memory.south east)[right] {0xFFFFFFFF};
+		
+		\draw[dashed] ($(memory.north west)-(0,0.5)$) node[left] {0x20000} -- ($(memory.north east)-(0,0.5)$) node[midway, above] {Firmware};
+	\end{tikzpicture}
+\end{figure}

document.tex

@@ -9,6 +9,7 @@
 \usetikzlibrary{positioning}
 \usetikzlibrary{decorations.pathreplacing}
 \usetikzlibrary{fit}
+\usetikzlibrary{calc}
 
 %\usepackage{showframe} % Good for debugging, uncomment to see the bounding boxes for the various sections of a page.