Chapter 2: Arithmetic

Co-authored-by: Cliff Click <cliffc@acm.org>
Co-authored-by: Thalia Archibald <thalia@archibald.dev>
Co-authored-by: Yichen Yan <oraluben@outlook.com>
Co-authored-by: Tamás Hadházy <85063808+Hels15@users.noreply.github.com>
Co-authored-by: XmiliaH <45106915+XmiliaH@users.noreply.github.com>
Co-authored-by: hadha <helsgithub15@gmail.com>
Co-authored-by: RobertObkircher <robert.obkircher@gmail.com>

1 files changed, 87 insertions, 0 deletions

diff --git a/docs/chapter02/02-demonstration-pre-peephole.svg b/docs/chapter02/02-demonstration-pre-peephole.svg
new file mode 100644
index 00000000..49624652
--- /dev/null
+++ b/docs/chapter02/02-demonstration-pre-peephole.svg
@@ -0,0 +1,87 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<!-- Generated by graphviz version 2.40.1 (20161225.0304)
+ -->
+<!-- Title: chapter02 Pages: 1 -->
+<svg width="186pt" height="292pt" viewBox="0.00 0.00 186.00 292.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 288)">
+<title>chapter02</title>
+<polygon fill="#ffffff" stroke="transparent" points="-4,4 -4,-288 182,-288 182,4 -4,4"/>
+<g id="clust1" class="cluster">
+<title>cluster_Nodes</title>
+<polygon fill="none" stroke="#000000" points="8,-8 8,-276 170,-276 170,-8 8,-8"/>
+</g>
+<!-- Start1 -->
+<g id="node1" class="node">
+<title>Start1</title>
+<polygon fill="#ffff00" stroke="#000000" points="90,-268 36,-268 36,-232 90,-232 90,-268"/>
+<text text-anchor="middle" x="63" y="-245.8" font-family="Times,serif" font-size="14.00" fill="#000000">Start</text>
+</g>
+<!-- Con_2 -->
+<g id="node2" class="node">
+<title>Con_2</title>
+<ellipse fill="none" stroke="#000000" cx="63" cy="-178" rx="27" ry="18"/>
+<text text-anchor="middle" x="63" y="-173.8" font-family="Times,serif" font-size="14.00" fill="#000000">#1</text>
+</g>
+<!-- Con_2&#45;&gt;Start1 -->
+<g id="edge1" class="edge">
+<title>Con_2-&gt;Start1</title>
+<path fill="none" stroke="#000000" stroke-dasharray="1,5" d="M63,-196.1686C63,-203.869 63,-213.0257 63,-221.5834"/>
+<polygon fill="#000000" stroke="#000000" points="59.5001,-221.5867 63,-231.5867 66.5001,-221.5868 59.5001,-221.5867"/>
+<text text-anchor="middle" x="60.7764" y="-198.5686" font-family="Helvetica,sans-Serif" font-size="8.00" fill="#000000">0</text>
+</g>
+<!-- Con_3 -->
+<g id="node3" class="node">
+<title>Con_3</title>
+<ellipse fill="none" stroke="#000000" cx="135" cy="-178" rx="27" ry="18"/>
+<text text-anchor="middle" x="135" y="-173.8" font-family="Times,serif" font-size="14.00" fill="#000000">#2</text>
+</g>
+<!-- Con_3&#45;&gt;Start1 -->
+<g id="edge2" class="edge">
+<title>Con_3-&gt;Start1</title>
+<path fill="none" stroke="#000000" stroke-dasharray="1,5" d="M119.7307,-193.2693C110.6292,-202.3708 98.8461,-214.1539 88.3788,-224.6212"/>
+<polygon fill="#000000" stroke="#000000" points="85.6429,-222.4073 81.0467,-231.9533 90.5927,-227.3571 85.6429,-222.4073"/>
+<text text-anchor="middle" x="117.5071" y="-195.6693" font-family="Helvetica,sans-Serif" font-size="8.00" fill="#000000">0</text>
+</g>
+<!-- Add4 -->
+<g id="node4" class="node">
+<title>Add4</title>
+<ellipse fill="none" stroke="#000000" cx="63" cy="-106" rx="27" ry="18"/>
+<text text-anchor="middle" x="63" y="-101.8" font-family="Times,serif" font-size="14.00" fill="#000000">+</text>
+</g>
+<!-- Add4&#45;&gt;Con_2 -->
+<g id="edge3" class="edge">
+<title>Add4-&gt;Con_2</title>
+<path fill="none" stroke="#000000" d="M63,-124.1686C63,-131.869 63,-141.0257 63,-149.5834"/>
+<polygon fill="#000000" stroke="#000000" points="59.5001,-149.5867 63,-159.5867 66.5001,-149.5868 59.5001,-149.5867"/>
+<text text-anchor="middle" x="60.7764" y="-126.5686" font-family="Helvetica,sans-Serif" font-size="8.00" fill="#000000">1</text>
+</g>
+<!-- Add4&#45;&gt;Con_3 -->
+<g id="edge4" class="edge">
+<title>Add4-&gt;Con_3</title>
+<path fill="none" stroke="#000000" d="M78.2693,-121.2693C88.197,-131.197 101.3153,-144.3153 112.4363,-155.4363"/>
+<polygon fill="#000000" stroke="#000000" points="110.2067,-158.1564 119.7527,-162.7527 115.1564,-153.2067 110.2067,-158.1564"/>
+<text text-anchor="middle" x="80.4929" y="-123.6693" font-family="Helvetica,sans-Serif" font-size="8.00" fill="#000000">2</text>
+</g>
+<!-- Return5 -->
+<g id="node5" class="node">
+<title>Return5</title>
+<polygon fill="#ffff00" stroke="#000000" points="80.1025,-52 25.8975,-52 25.8975,-16 80.1025,-16 80.1025,-52"/>
+<text text-anchor="middle" x="53" y="-29.8" font-family="Times,serif" font-size="14.00" fill="#000000">Return</text>
+</g>
+<!-- Return5&#45;&gt;Start1 -->
+<g id="edge5" class="edge">
+<title>Return5-&gt;Start1</title>
+<path fill="none" stroke="#ff0000" d="M41.6804,-52.2322C36.0604,-62.3585 29.8706,-75.4211 27,-88 16.3208,-134.7969 13.0904,-150.0596 27,-196 29.9564,-205.7645 35.3252,-215.3771 41.03,-223.7238"/>
+<polygon fill="#ff0000" stroke="#ff0000" points="38.2871,-225.9027 47.0095,-231.9169 43.9414,-221.7761 38.2871,-225.9027"/>
+<text text-anchor="middle" x="39.4568" y="-54.6322" font-family="Helvetica,sans-Serif" font-size="8.00" fill="#000000">0</text>
+</g>
+<!-- Return5&#45;&gt;Add4 -->
+<g id="edge6" class="edge">
+<title>Return5-&gt;Add4</title>
+<path fill="none" stroke="#000000" d="M55.5234,-52.1686C56.5929,-59.869 57.8647,-69.0257 59.0532,-77.5834"/>
+<polygon fill="#000000" stroke="#000000" points="55.6001,-78.1633 60.4426,-87.5867 62.5336,-77.2003 55.6001,-78.1633"/>
+<text text-anchor="middle" x="53.2998" y="-54.5686" font-family="Helvetica,sans-Serif" font-size="8.00" fill="#000000">1</text>
+</g>
+</g>
+</svg>
\ No newline at end of file