Split ch10

Basic memory introduction in 10a, then precise aliases in 10b.

12 files changed, 1074 insertions, 0 deletions

diff --git a/chapter10a/docs/10-grammar.md b/chapter10a/docs/10-grammar.md
new file mode 100644
index 00000000..5b9b680e
--- /dev/null
+++ b/chapter10a/docs/10-grammar.md
@@ -0,0 +1,125 @@
+# Grammar for Chapter 10a
+
+```antlrv4
+grammar SimpleLanguage;
+
+program
+    : statement+ EOF
+    ;
+
+statement
+    : returnStatement
+    | structDeclaration
+    | declStatement
+    | blockStatment
+    | expressionStatement
+    | ifStatement
+    | whileStatement
+    | breakStatement
+    | continueStatment
+    ;
+
+field
+    : 'int' IDENTIFIER ';'
+    ;
+
+fields
+    : field+
+    ;
+
+structDeclaration
+    : 'struct' IDENTIFIER '{' fields '}'
+    ;
+
+whileStatement
+    : 'while' '(' expression ')' statement
+    ;
+
+breakStatement
+    : 'break' ';'
+    ;
+
+continueStatement
+    : 'continue' ';'
+    ;
+
+ifStatement
+    : 'if' '(' expression ')' statement ('else' statement)?
+    ;
+
+
+expressionStatement
+    : IDENTIFIER '=' expression ';'
+    | fieldExpression '=' expression ';'
+    ;
+
+blockStatement
+    : '{' statement+ '}'
+    ;
+
+structName
+    : IDENTIFIER
+    ;
+
+declStatement
+    : 'int' IDENTIFIER '=' expression ';'
+    | structName ('?')? IDENTIFIER '=' expression ';'
+    ;
+
+returnStatement
+    : 'return' expression ';'
+    ;
+
+expression
+    : comparisonExpression
+    ;
+
+comparisonExpression
+    : additiveExpression (('==' | '!='| '>'| '<'| '>='| '<=') additiveExpression)*
+    ;
+
+additiveExpression
+    : multiplicativeExpression (('+' | '-') multiplicativeExpression)*
+    ;
+
+multiplicativeExpression
+    : unaryExpression (('*' | '/') unaryExpression)*
+    ;
+
+unaryExpression
+    : ('-') unaryExpression
+    | '!' unaryExpression
+    | primaryExpression
+    ;
+
+newExpression
+    : 'new' IDENTIFIER
+    ;
+
+fieldExpression
+    : primaryExpresson '.' IDENTIFIER
+    ;
+
+primaryExpression
+    : IDENTIFIER
+    | INTEGER_LITERAL
+    | 'true'
+    | 'false'
+    | 'null'
+    | newExpression
+    | '(' expression ')'
+    | fieldExpression
+    ;
+
+INTEGER_LITERAL
+    : [1-9][0-9]*
+    | [0]
+    ;
+
+IDENTIFIER
+    : NON_DIGIT (NON_DIGIT | DIGIT)*
+    ;
+
+NON_DIGIT: [a-zA-Z_];
+DEC_DIGIT: [0-9];
+```
diff --git a/chapter10a/docs/Makefile b/chapter10a/docs/Makefile
new file mode 100644
index 00000000..055882b2
--- /dev/null
+++ b/chapter10a/docs/Makefile
@@ -0,0 +1,14 @@
+GV := $(wildcard *.gv)
+SVG := $(patsubst %.gv,%.svg,$(GV))
+.DELETE_ON_ERROR:
+
+.PHONY: all
+all: $(SVG)
+
+%.svg: %.gv
+	dot -Tsvg $< > $@
+	@sed -i 's/\r$$//' $@
+
+.PHONY: clean
+clean:
+	@rm -f $(SVG)
diff --git a/chapter10a/docs/example1.gv b/chapter10a/docs/example1.gv
new file mode 100644
index 00000000..38214174
--- /dev/null
+++ b/chapter10a/docs/example1.gv
@@ -0,0 +1,10 @@
+digraph Memory {
+  rankdir=LR;
+  node [shape=box];
+  M0 [label="Initial memory"];
+  X [label="Store p.x = 3"];
+  Y [label="Store p.y = arg"];
+  L [label="Load p.x"];
+  M0 -> X -> Y -> L [color=blue];
+  Y -> Return [color=blue]; L -> Return;
+}
diff --git a/chapter10a/docs/example1.svg b/chapter10a/docs/example1.svg
new file mode 100644
index 00000000..7ae4b560
--- /dev/null
+++ b/chapter10a/docs/example1.svg
@@ -0,0 +1,73 @@
+<?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 12.2.0 (20241103.1931)
+ -->
+<!-- Title: Memory Pages: 1 -->
+<svg width="556pt" height="67pt"
+ viewBox="0.00 0.00 555.75 67.00" 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 63)">
+<title>Memory</title>
+<polygon fill="white" stroke="none" points="-4,4 -4,-63 551.75,-63 551.75,4 -4,4"/>
+<!-- M0 -->
+<g id="node1" class="node">
+<title>M0</title>
+<polygon fill="none" stroke="black" points="98.5,-36 0,-36 0,0 98.5,0 98.5,-36"/>
+<text text-anchor="middle" x="49.25" y="-12.95" font-family="Times New Roman,serif" font-size="14.00">Initial memory</text>
+</g>
+<!-- X -->
+<g id="node2" class="node">
+<title>X</title>
+<polygon fill="none" stroke="black" points="222.5,-36 134.5,-36 134.5,0 222.5,0 222.5,-36"/>
+<text text-anchor="middle" x="178.5" y="-12.95" font-family="Times New Roman,serif" font-size="14.00">Store p.x = 3</text>
+</g>
+<!-- M0&#45;&gt;X -->
+<g id="edge1" class="edge">
+<title>M0&#45;&gt;X</title>
+<path fill="none" stroke="blue" d="M98.72,-18C106.55,-18 114.71,-18 122.68,-18"/>
+<polygon fill="blue" stroke="blue" points="122.65,-21.5 132.65,-18 122.65,-14.5 122.65,-21.5"/>
+</g>
+<!-- Y -->
+<g id="node3" class="node">
+<title>Y</title>
+<polygon fill="none" stroke="black" points="357,-36 258.5,-36 258.5,0 357,0 357,-36"/>
+<text text-anchor="middle" x="307.75" y="-12.95" font-family="Times New Roman,serif" font-size="14.00">Store p.y = arg</text>
+</g>
+<!-- X&#45;&gt;Y -->
+<g id="edge2" class="edge">
+<title>X&#45;&gt;Y</title>
+<path fill="none" stroke="blue" d="M222.94,-18C230.67,-18 238.84,-18 246.94,-18"/>
+<polygon fill="blue" stroke="blue" points="246.76,-21.5 256.76,-18 246.76,-14.5 246.76,-21.5"/>
+</g>
+<!-- L -->
+<g id="node4" class="node">
+<title>L</title>
+<polygon fill="none" stroke="black" points="457.75,-59 393,-59 393,-23 457.75,-23 457.75,-59"/>
+<text text-anchor="middle" x="425.38" y="-35.95" font-family="Times New Roman,serif" font-size="14.00">Load p.x</text>
+</g>
+<!-- Y&#45;&gt;L -->
+<g id="edge3" class="edge">
+<title>Y&#45;&gt;L</title>
+<path fill="none" stroke="blue" d="M357.45,-27.69C365.41,-29.27 373.61,-30.9 381.42,-32.46"/>
+<polygon fill="blue" stroke="blue" points="380.54,-35.85 391.03,-34.37 381.9,-28.98 380.54,-35.85"/>
+</g>
+<!-- Return -->
+<g id="node5" class="node">
+<title>Return</title>
+<polygon fill="none" stroke="black" points="547.75,-36 493.75,-36 493.75,0 547.75,0 547.75,-36"/>
+<text text-anchor="middle" x="520.75" y="-12.95" font-family="Times New Roman,serif" font-size="14.00">Return</text>
+</g>
+<!-- Y&#45;&gt;Return -->
+<g id="edge4" class="edge">
+<title>Y&#45;&gt;Return</title>
+<path fill="none" stroke="blue" d="M357.3,-15.3C368.98,-14.76 381.44,-14.27 393,-14 421.77,-13.32 428.99,-13.07 457.75,-14 465.65,-14.25 474.1,-14.69 482.14,-15.18"/>
+<polygon fill="blue" stroke="blue" points="481.8,-18.67 492.01,-15.83 482.26,-11.68 481.8,-18.67"/>
+</g>
+<!-- L&#45;&gt;Return -->
+<g id="edge5" class="edge">
+<title>L&#45;&gt;Return</title>
+<path fill="none" stroke="black" d="M458.25,-33.15C466,-31.24 474.37,-29.18 482.36,-27.21"/>
+<polygon fill="black" stroke="black" points="482.95,-30.67 491.82,-24.88 481.28,-23.87 482.95,-30.67"/>
+</g>
+</g>
+</svg>
diff --git a/chapter10a/docs/example2a.gv b/chapter10a/docs/example2a.gv
new file mode 100644
index 00000000..13fd75e0
--- /dev/null
+++ b/chapter10a/docs/example2a.gv
@@ -0,0 +1,10 @@
+digraph Memory {
+  rankdir=LR;
+  node [shape=box];
+  M [label="Incoming memory"];
+  A [label="True: Store x"];
+  B [label="False: Store y"];
+  P [label="Phi(memory)"];
+  M -> A -> P [color=blue]; M -> B -> P [color=blue];
+  Region -> P [style=dashed]; P -> Return [color=blue];
+}
diff --git a/chapter10a/docs/example2a.svg b/chapter10a/docs/example2a.svg
new file mode 100644
index 00000000..1752659e
--- /dev/null
+++ b/chapter10a/docs/example2a.svg
@@ -0,0 +1,85 @@
+<?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 12.2.0 (20241103.1931)
+ -->
+<!-- Title: Memory Pages: 1 -->
+<svg width="469pt" height="152pt"
+ viewBox="0.00 0.00 469.25 152.00" 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(4 148)">
+<title>Memory</title>
+<polygon fill="white" stroke="none" points="-4,4 -4,-148 465.25,-148 465.25,4 -4,4"/>
+<!-- M -->
+<g id="node1" class="node">
+<title>M</title>
+<polygon fill="none" stroke="black" points="118.75,-117 0,-117 0,-81 118.75,-81 118.75,-117"/>
+<text text-anchor="middle" x="59.38" y="-93.95" font-family="Times New Roman,serif" font-size="14.00">Incoming memory</text>
+</g>
+<!-- A -->
+<g id="node2" class="node">
+<title>A</title>
+<polygon fill="none" stroke="black" points="244.25,-144 156.25,-144 156.25,-108 244.25,-108 244.25,-144"/>
+<text text-anchor="middle" x="200.25" y="-120.95" font-family="Times New Roman,serif" font-size="14.00">True: Store x</text>
+</g>
+<!-- M&#45;&gt;A -->
+<g id="edge1" class="edge">
+<title>M&#45;&gt;A</title>
+<path fill="none" stroke="blue" d="M118.87,-110.37C127.53,-112.06 136.42,-113.78 144.99,-115.45"/>
+<polygon fill="blue" stroke="blue" points="144.05,-118.83 154.53,-117.31 145.38,-111.96 144.05,-118.83"/>
+</g>
+<!-- B -->
+<g id="node3" class="node">
+<title>B</title>
+<polygon fill="none" stroke="black" points="245.75,-90 154.75,-90 154.75,-54 245.75,-54 245.75,-90"/>
+<text text-anchor="middle" x="200.25" y="-66.95" font-family="Times New Roman,serif" font-size="14.00">False: Store y</text>
+</g>
+<!-- M&#45;&gt;B -->
+<g id="edge3" class="edge">
+<title>M&#45;&gt;B</title>
+<path fill="none" stroke="blue" d="M118.87,-87.63C126.93,-86.06 135.19,-84.45 143.21,-82.9"/>
+<polygon fill="blue" stroke="blue" points="143.7,-86.37 152.84,-81.02 142.36,-79.5 143.7,-86.37"/>
+</g>
+<!-- P -->
+<g id="node4" class="node">
+<title>P</title>
+<polygon fill="none" stroke="black" points="371.25,-90 281.75,-90 281.75,-54 371.25,-54 371.25,-90"/>
+<text text-anchor="middle" x="326.5" y="-66.95" font-family="Times New Roman,serif" font-size="14.00">Phi(memory)</text>
+</g>
+<!-- A&#45;&gt;P -->
+<g id="edge2" class="edge">
+<title>A&#45;&gt;P</title>
+<path fill="none" stroke="blue" d="M243.66,-107.57C253.06,-103.48 263.13,-99.11 272.87,-94.87"/>
+<polygon fill="blue" stroke="blue" points="274.11,-98.15 281.89,-90.95 271.32,-91.73 274.11,-98.15"/>
+</g>
+<!-- B&#45;&gt;P -->
+<g id="edge4" class="edge">
+<title>B&#45;&gt;P</title>
+<path fill="none" stroke="blue" d="M246.11,-72C253.95,-72 262.19,-72 270.28,-72"/>
+<polygon fill="blue" stroke="blue" points="270.03,-75.5 280.03,-72 270.03,-68.5 270.03,-75.5"/>
+</g>
+<!-- Return -->
+<g id="node6" class="node">
+<title>Return</title>
+<polygon fill="none" stroke="black" points="461.25,-90 407.25,-90 407.25,-54 461.25,-54 461.25,-90"/>
+<text text-anchor="middle" x="434.25" y="-66.95" font-family="Times New Roman,serif" font-size="14.00">Return</text>
+</g>
+<!-- P&#45;&gt;Return -->
+<g id="edge6" class="edge">
+<title>P&#45;&gt;Return</title>
+<path fill="none" stroke="blue" d="M371.73,-72C379.7,-72 387.94,-72 395.7,-72"/>
+<polygon fill="blue" stroke="blue" points="395.49,-75.5 405.49,-72 395.49,-68.5 395.49,-75.5"/>
+</g>
+<!-- Region -->
+<g id="node5" class="node">
+<title>Region</title>
+<polygon fill="none" stroke="black" points="227.75,-36 172.75,-36 172.75,0 227.75,0 227.75,-36"/>
+<text text-anchor="middle" x="200.25" y="-12.95" font-family="Times New Roman,serif" font-size="14.00">Region</text>
+</g>
+<!-- Region&#45;&gt;P -->
+<g id="edge5" class="edge">
+<title>Region&#45;&gt;P</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M228.21,-29.72C241.2,-35.36 257.25,-42.34 272.54,-48.98"/>
+<polygon fill="black" stroke="black" points="271,-52.13 281.57,-52.91 273.79,-45.71 271,-52.13"/>
+</g>
+</g>
+</svg>
diff --git a/chapter10a/docs/example2b.gv b/chapter10a/docs/example2b.gv
new file mode 100644
index 00000000..9db0f5fb
--- /dev/null
+++ b/chapter10a/docs/example2b.gv
@@ -0,0 +1,8 @@
+digraph Memory {
+  rankdir=LR;
+  node [shape=box];
+  P [label="Phi(memory)"];
+  S [label="Loop-body Store"];
+  Entry -> P [color=blue]; P -> S -> P [color=blue];
+  Loop -> P [style=dashed]; P -> Return [color=blue];
+}
diff --git a/chapter10a/docs/example2b.svg b/chapter10a/docs/example2b.svg
new file mode 100644
index 00000000..1f106d63
--- /dev/null
+++ b/chapter10a/docs/example2b.svg
@@ -0,0 +1,73 @@
+<?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 12.2.0 (20241103.1931)
+ -->
+<!-- Title: Memory Pages: 1 -->
+<svg width="332pt" height="125pt"
+ viewBox="0.00 0.00 331.75 125.00" 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(4 121)">
+<title>Memory</title>
+<polygon fill="white" stroke="none" points="-4,4 -4,-121 327.75,-121 327.75,4 -4,4"/>
+<!-- P -->
+<g id="node1" class="node">
+<title>P</title>
+<polygon fill="none" stroke="black" points="179.5,-90 90,-90 90,-54 179.5,-54 179.5,-90"/>
+<text text-anchor="middle" x="134.75" y="-66.95" font-family="Times New Roman,serif" font-size="14.00">Phi(memory)</text>
+</g>
+<!-- S -->
+<g id="node2" class="node">
+<title>S</title>
+<polygon fill="none" stroke="black" points="323.75,-90 215.5,-90 215.5,-54 323.75,-54 323.75,-90"/>
+<text text-anchor="middle" x="269.62" y="-66.95" font-family="Times New Roman,serif" font-size="14.00">Loop&#45;body Store</text>
+</g>
+<!-- P&#45;&gt;S -->
+<g id="edge2" class="edge">
+<title>P&#45;&gt;S</title>
+<path fill="none" stroke="blue" d="M180,-65.6C187.69,-65.35 195.84,-65.23 203.95,-65.25"/>
+<polygon fill="blue" stroke="blue" points="203.79,-68.75 213.83,-65.35 203.87,-61.75 203.79,-68.75"/>
+</g>
+<!-- Return -->
+<g id="node5" class="node">
+<title>Return</title>
+<polygon fill="none" stroke="black" points="296.62,-36 242.62,-36 242.62,0 296.62,0 296.62,-36"/>
+<text text-anchor="middle" x="269.62" y="-12.95" font-family="Times New Roman,serif" font-size="14.00">Return</text>
+</g>
+<!-- P&#45;&gt;Return -->
+<g id="edge5" class="edge">
+<title>P&#45;&gt;Return</title>
+<path fill="none" stroke="blue" d="M180,-54.02C196.8,-47.19 215.75,-39.49 231.8,-32.97"/>
+<polygon fill="blue" stroke="blue" points="233.04,-36.24 240.98,-29.23 230.4,-29.76 233.04,-36.24"/>
+</g>
+<!-- S&#45;&gt;P -->
+<g id="edge3" class="edge">
+<title>S&#45;&gt;P</title>
+<path fill="none" stroke="blue" d="M215.34,-78.63C207.46,-78.78 199.33,-78.79 191.4,-78.67"/>
+<polygon fill="blue" stroke="blue" points="191.59,-75.17 181.51,-78.44 191.42,-82.17 191.59,-75.17"/>
+</g>
+<!-- Entry -->
+<g id="node3" class="node">
+<title>Entry</title>
+<polygon fill="none" stroke="black" points="54,-117 0,-117 0,-81 54,-81 54,-117"/>
+<text text-anchor="middle" x="27" y="-93.95" font-family="Times New Roman,serif" font-size="14.00">Entry</text>
+</g>
+<!-- Entry&#45;&gt;P -->
+<g id="edge1" class="edge">
+<title>Entry&#45;&gt;P</title>
+<path fill="none" stroke="blue" d="M54.41,-92.26C61.81,-90.37 70.15,-88.24 78.56,-86.09"/>
+<polygon fill="blue" stroke="blue" points="79.3,-89.51 88.12,-83.65 77.57,-82.73 79.3,-89.51"/>
+</g>
+<!-- Loop -->
+<g id="node4" class="node">
+<title>Loop</title>
+<polygon fill="none" stroke="black" points="54,-63 0,-63 0,-27 54,-27 54,-63"/>
+<text text-anchor="middle" x="27" y="-39.95" font-family="Times New Roman,serif" font-size="14.00">Loop</text>
+</g>
+<!-- Loop&#45;&gt;P -->
+<g id="edge4" class="edge">
+<title>Loop&#45;&gt;P</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M54.41,-51.74C61.81,-53.63 70.15,-55.76 78.56,-57.91"/>
+<polygon fill="black" stroke="black" points="77.57,-61.27 88.12,-60.35 79.3,-54.49 77.57,-61.27"/>
+</g>
+</g>
+</svg>
diff --git a/chapter10a/docs/example2c.gv b/chapter10a/docs/example2c.gv
new file mode 100644
index 00000000..0a9f0462
--- /dev/null
+++ b/chapter10a/docs/example2c.gv
@@ -0,0 +1,9 @@
+digraph Memory {
+  rankdir=LR;
+  node [shape=box];
+  M [label="Prior memory"];
+  L [label="Load p.x"];
+  S [label="Store p.x"];
+  M -> L [color=blue]; M -> S [color=blue];
+  L -> S [style=dashed,label="execute load first"];
+}
diff --git a/chapter10a/docs/example2c.svg b/chapter10a/docs/example2c.svg
new file mode 100644
index 00000000..90f90920
--- /dev/null
+++ b/chapter10a/docs/example2c.svg
@@ -0,0 +1,50 @@
+<?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 12.2.0 (20241103.1931)
+ -->
+<!-- Title: Memory Pages: 1 -->
+<svg width="398pt" height="78pt"
+ viewBox="0.00 0.00 398.25 78.00" 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 74)">
+<title>Memory</title>
+<polygon fill="white" stroke="none" points="-4,4 -4,-74 394.25,-74 394.25,4 -4,4"/>
+<!-- M -->
+<g id="node1" class="node">
+<title>M</title>
+<polygon fill="none" stroke="black" points="93.25,-36 0,-36 0,0 93.25,0 93.25,-36"/>
+<text text-anchor="middle" x="46.62" y="-12.95" font-family="Times New Roman,serif" font-size="14.00">Prior memory</text>
+</g>
+<!-- L -->
+<g id="node2" class="node">
+<title>L</title>
+<polygon fill="none" stroke="black" points="195,-70 130.25,-70 130.25,-34 195,-34 195,-70"/>
+<text text-anchor="middle" x="162.62" y="-46.95" font-family="Times New Roman,serif" font-size="14.00">Load p.x</text>
+</g>
+<!-- M&#45;&gt;L -->
+<g id="edge1" class="edge">
+<title>M&#45;&gt;L</title>
+<path fill="none" stroke="blue" d="M93.66,-31.73C101.99,-34.21 110.64,-36.79 118.87,-39.25"/>
+<polygon fill="blue" stroke="blue" points="117.72,-42.56 128.31,-42.06 119.73,-35.85 117.72,-42.56"/>
+</g>
+<!-- S -->
+<g id="node3" class="node">
+<title>S</title>
+<polygon fill="none" stroke="black" points="390.25,-40 324.75,-40 324.75,-4 390.25,-4 390.25,-40"/>
+<text text-anchor="middle" x="357.5" y="-16.95" font-family="Times New Roman,serif" font-size="14.00">Store p.x</text>
+</g>
+<!-- M&#45;&gt;S -->
+<g id="edge2" class="edge">
+<title>M&#45;&gt;S</title>
+<path fill="none" stroke="blue" d="M93.53,-18.59C152.81,-19.36 255.2,-20.69 313.19,-21.44"/>
+<polygon fill="blue" stroke="blue" points="312.95,-24.94 323,-21.57 313.04,-17.94 312.95,-24.94"/>
+</g>
+<!-- L&#45;&gt;S -->
+<g id="edge3" class="edge">
+<title>L&#45;&gt;S</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M195.47,-47.05C227.62,-42.05 277.5,-34.29 313.22,-28.73"/>
+<polygon fill="black" stroke="black" points="313.44,-32.24 322.79,-27.24 312.37,-25.32 313.44,-32.24"/>
+<text text-anchor="middle" x="259.88" y="-47.15" font-family="Times New Roman,serif" font-size="14.00">execute load first</text>
+</g>
+</g>
+</svg>
diff --git a/chapter10a/docs/lattice.gv b/chapter10a/docs/lattice.gv
new file mode 100644
index 00000000..b2d8255e
--- /dev/null
+++ b/chapter10a/docs/lattice.gv
@@ -0,0 +1,151 @@
+digraph Lattice {
+    compound = true;
+    // Define nodes
+    splines=false;
+    node [shape=circle, style=filled];
+    nodesep=0.6;
+
+    TOP [label=<<B>⊤</B >>, fillcolor=black, fontcolor=white];
+    BOT [label=<<B>⊥</B>>, fillcolor=black, fontcolor=white];
+
+    // ----------------------
+    // Control
+    XCTRL [label=<<B>⊤</B >:ctrl>, fillcolor=yellow, shape=oval];
+    CTRL  [label=<<B>⊥</B>:ctrl>, fillcolor=yellow, shape=oval];
+
+    TOP   -> XCTRL;
+    XCTRL -> CTRL;
+    CTRL  -> BOT;
+
+    // ----------------------
+    // Integers
+    INT_TOP [label=<<B>⊤</B >:int>, fillcolor=lightblue, shape=oval];
+    INT_BOT [label=<<B>⊥</B>:int>, fillcolor=lightblue, shape=oval];
+
+    INT_MINDOTS [label="...", fillcolor=lightblue, shape=oval];
+    INT_ZERO    [label="0"  , fillcolor=lightblue];
+    INT_MAXDOTS [label="...", fillcolor=lightblue, shape=oval];
+
+    TOP         -> INT_TOP;
+    INT_TOP     -> INT_MINDOTS;
+    INT_TOP     -> INT_ZERO;
+    INT_TOP     -> INT_MAXDOTS;
+    INT_MINDOTS -> INT_BOT;
+    INT_ZERO    -> INT_BOT;
+    INT_MAXDOTS -> INT_BOT;
+    INT_BOT     -> BOT;
+
+    INT_MINDOTS -> INT_ZERO -> INT_MAXDOTS [style=invis];
+
+    // ----------------------
+    // Pointers, just a boolean nil/not and a struct
+    PTR  [shape=none, fillcolor=none, label=<
+      <TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
+        <TR><TD BGCOLOR="green"><FONT color="white">*ptr</FONT></TD></TR>
+        <TR><TD BGCOLOR="lightgreen">struct</TD></TR>
+      </TABLE>
+    >];
+    PTR0  [shape=none, fillcolor=none, label=<
+      <TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
+        <TR><TD BGCOLOR="green"><FONT color="white">*ptr?</FONT></TD></TR>
+        <TR><TD BGCOLOR="lightgreen">struct</TD></TR>
+      </TABLE>
+    >];
+
+    TOP  -> PTR;
+    PTR  -> PTR0;
+    PTR0 -> BOT;
+
+    // ----------------------
+    // Structs
+    STRUCT_TOP    [label=<<B>⊤</B >:struct>, fillcolor=lightgreen, shape=oval];
+    STRUCT_BOT    [label=<<B>⊥</B>:struct>, fillcolor=lightgreen, shape=oval];
+
+    STRUCT_S1  [shape=none, fillcolor=none, label=<
+      <TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
+        <TR><TD BGCOLOR="lightgreen">field</TD><TD BGCOLOR="lightblue:green" gradientangle="315">int/ptr</TD></TR>
+      </TABLE>
+    >];
+    STRUCT_S2  [shape=none, fillcolor=none, label=<
+      <TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
+        <TR><TD BGCOLOR="lightgreen">field</TD><TD BGCOLOR="lightblue:green" gradientangle="315">int/ptr</TD></TR>
+        <TR><TD BGCOLOR="lightgreen">field</TD><TD BGCOLOR="lightblue:green" gradientangle="315">int/ptr</TD></TR>
+      </TABLE>
+    >];
+    STRUCT_SN  [shape=none, fillcolor=none, label=<
+      <TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
+        <TR><TD BGCOLOR="lightgreen">field</TD><TD BGCOLOR="lightblue:green" gradientangle="315">int/ptr</TD></TR>
+        <TR><TD BGCOLOR="lightgreen">...  </TD><TD BGCOLOR="lightblue:green" gradientangle="315">int/ptr</TD></TR>
+        <TR><TD BGCOLOR="lightgreen">field</TD><TD BGCOLOR="lightblue:green" gradientangle="315">int/ptr</TD></TR>
+      </TABLE>
+    >];
+
+
+    TOP          -> STRUCT_TOP;
+    STRUCT_TOP   -> STRUCT_S1;
+    STRUCT_TOP   -> STRUCT_S2;
+    STRUCT_TOP   -> STRUCT_SN;
+    STRUCT_S1    -> STRUCT_BOT;
+    STRUCT_S2    -> STRUCT_BOT;
+    STRUCT_SN    -> STRUCT_BOT;
+    STRUCT_BOT   -> BOT;
+
+    STRUCT_S1 -> STRUCT_S2 -> STRUCT_SN [style=invis];
+
+    // ----------------------
+    // Memory
+    MEM_TOP       [label=<<B>⊤</B >:mem>, fillcolor=blue, fontcolor=white, shape=oval];
+    MEM_BOT       [label=<<B>⊥</B>:mem>, fillcolor=blue, fontcolor=white, shape=oval];
+
+    TOP          -> MEM_TOP;
+    MEM_TOP      -> MEM_BOT;
+    MEM_BOT       -> BOT;
+
+
+    // ----------------------
+    // Tuples
+
+    TUPLE_TOP [label=<<B>⊤</B >:tuple>, fillcolor=pink, shape=oval];
+    TUPLE_BOT [label=<<B>⊥</B>:tuple>, fillcolor=pink, shape=oval];
+
+    TUPLE1 [shape=none, fillcolor=none, label=<
+      <TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
+        <TR><TD BGCOLOR="pink">Tuple</TD></TR>
+        <TR><TD BGCOLOR="black" ><FONT color="white">type</FONT></TD></TR>
+      </TABLE>
+    >];
+    TUPLE2 [shape=none, fillcolor=none, label=<
+      <TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
+        <TR><TD BGCOLOR="pink">Tuple</TD></TR>
+        <TR><TD BGCOLOR="black" ><FONT color="white">type</FONT></TD></TR>
+        <TR><TD BGCOLOR="black" ><FONT color="white">type</FONT></TD></TR>
+      </TABLE>
+    >];
+    TUPLEN [shape=none, fillcolor=none, label=<
+      <TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
+        <TR><TD BGCOLOR="pink">Tuple</TD></TR>
+        <TR><TD BGCOLOR="black" ><FONT color="white">type</FONT></TD></TR>
+        <TR><TD BGCOLOR="black" ><FONT color="white">...</FONT></TD></TR>
+        <TR><TD BGCOLOR="black" ><FONT color="white">type</FONT></TD></TR>
+      </TABLE>
+    >];
+
+
+    TOP -> TUPLE_TOP;
+    TUPLE_TOP -> TUPLE1;
+    TUPLE_TOP -> TUPLE2;
+    TUPLE_TOP -> TUPLEN;
+    TUPLE1 -> TUPLE_BOT;
+    TUPLE2 -> TUPLE_BOT;
+    TUPLEN -> TUPLE_BOT;
+    TUPLE_BOT -> BOT;
+
+    // ----------------------
+    // Additional customization
+    {rank=same; TOP;}
+    {rank=same; INT_TOP; XCTRL; STRUCT_TOP; MEM_TOP; TUPLE_TOP}
+    {rank=same; INT_MINDOTS; INT_ZERO; INT_MAXDOTS;
+                STRUCT_S1; STRUCT_S2; STRUCT_SN;}
+    {rank=same; INT_BOT; CTRL; STRUCT_BOT; MEM_BOT; TUPLE_BOT}
+    {rank=same; BOT;}
+}
diff --git a/chapter10a/docs/lattice.svg b/chapter10a/docs/lattice.svg
new file mode 100644
index 00000000..aa296366
--- /dev/null
+++ b/chapter10a/docs/lattice.svg
@@ -0,0 +1,466 @@
+<?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 12.2.0 (20241103.1931)
+ -->
+<!-- Title: Lattice Pages: 1 -->
+<svg width="1132pt" height="440pt"
+ viewBox="0.00 0.00 1131.51 440.50" 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(4 436.5)">
+<title>Lattice</title>
+<polygon fill="white" stroke="none" points="-4,4 -4,-436.5 1127.51,-436.5 1127.51,4 -4,4"/>
+<!-- TOP -->
+<g id="node1" class="node">
+<title>TOP</title>
+<ellipse fill="black" stroke="black" cx="478.51" cy="-411.37" rx="21.12" ry="21.12"/>
+<text text-anchor="start" x="470.63" y="-406.95" font-family="Times New Roman,serif" font-weight="bold" font-size="14.00" fill="white">⊤</text>
+</g>
+<!-- XCTRL -->
+<g id="node3" class="node">
+<title>XCTRL</title>
+<ellipse fill="yellow" stroke="black" cx="36.51" cy="-327.75" rx="36.51" ry="18"/>
+<text text-anchor="start" x="17.76" y="-323.7" font-family="Times New Roman,serif" font-weight="bold" font-size="14.00">⊤</text>
+<text text-anchor="start" x="33.51" y="-323.7" font-family="Times New Roman,serif" font-size="14.00">:ctrl</text>
+</g>
+<!-- TOP&#45;&gt;XCTRL -->
+<g id="edge1" class="edge">
+<title>TOP&#45;&gt;XCTRL</title>
+<path fill="none" stroke="black" d="M457.49,-406.49C389.63,-393.96 175.41,-354.4 81.44,-337.04"/>
+<polygon fill="black" stroke="black" points="82.28,-333.64 71.81,-335.27 81.01,-340.53 82.28,-333.64"/>
+</g>
+<!-- INT_TOP -->
+<g id="node5" class="node">
+<title>INT_TOP</title>
+<ellipse fill="lightblue" stroke="black" cx="220.51" cy="-327.75" rx="33.95" ry="18"/>
+<text text-anchor="start" x="203.63" y="-323.7" font-family="Times New Roman,serif" font-weight="bold" font-size="14.00">⊤</text>
+<text text-anchor="start" x="219.38" y="-323.7" font-family="Times New Roman,serif" font-size="14.00">:int</text>
+</g>
+<!-- TOP&#45;&gt;INT_TOP -->
+<g id="edge4" class="edge">
+<title>TOP&#45;&gt;INT_TOP</title>
+<path fill="none" stroke="black" d="M458.26,-403.97C415.59,-390.47 315.75,-358.88 259.97,-341.23"/>
+<polygon fill="black" stroke="black" points="261.14,-337.93 250.55,-338.25 259.03,-344.61 261.14,-337.93"/>
+</g>
+<!-- PTR -->
+<g id="node10" class="node">
+<title>PTR</title>
+<polygon fill="none" stroke="none" points="387.51,-354.25 333.51,-354.25 333.51,-301.25 387.51,-301.25 387.51,-354.25"/>
+<polygon fill="green" stroke="none" points="342.51,-327.75 342.51,-350.25 378.51,-350.25 378.51,-327.75 342.51,-327.75"/>
+<polygon fill="none" stroke="black" points="342.51,-327.75 342.51,-350.25 378.51,-350.25 378.51,-327.75 342.51,-327.75"/>
+<text text-anchor="start" x="349.63" y="-333.95" font-family="Times New Roman,serif" font-size="14.00" fill="white">*ptr</text>
+<polygon fill="lightgreen" stroke="none" points="342.51,-305.25 342.51,-327.75 378.51,-327.75 378.51,-305.25 342.51,-305.25"/>
+<polygon fill="none" stroke="black" points="342.51,-305.25 342.51,-327.75 378.51,-327.75 378.51,-305.25 342.51,-305.25"/>
+<text text-anchor="start" x="345.51" y="-311.45" font-family="Times New Roman,serif" font-size="14.00">struct</text>
+</g>
+<!-- TOP&#45;&gt;PTR -->
+<g id="edge14" class="edge">
+<title>TOP&#45;&gt;PTR</title>
+<path fill="none" stroke="black" d="M461.35,-398.5C444.42,-386.79 418.03,-368.54 396.49,-353.64"/>
+<polygon fill="black" stroke="black" points="398.75,-350.95 388.54,-348.14 394.77,-356.7 398.75,-350.95"/>
+</g>
+<!-- STRUCT_TOP -->
+<g id="node12" class="node">
+<title>STRUCT_TOP</title>
+<ellipse fill="lightgreen" stroke="black" cx="514.51" cy="-327.75" rx="44.7" ry="18"/>
+<text text-anchor="start" x="489.76" y="-323.7" font-family="Times New Roman,serif" font-weight="bold" font-size="14.00">⊤</text>
+<text text-anchor="start" x="505.51" y="-323.7" font-family="Times New Roman,serif" font-size="14.00">:struct</text>
+</g>
+<!-- TOP&#45;&gt;STRUCT_TOP -->
+<g id="edge17" class="edge">
+<title>TOP&#45;&gt;STRUCT_TOP</title>
+<path fill="none" stroke="black" d="M486.86,-391.44C491.45,-381.02 497.24,-367.9 502.33,-356.35"/>
+<polygon fill="black" stroke="black" points="505.5,-357.86 506.33,-347.29 499.09,-355.03 505.5,-357.86"/>
+</g>
+<!-- MEM_TOP -->
+<g id="node17" class="node">
+<title>MEM_TOP</title>
+<ellipse fill="blue" stroke="black" cx="757.51" cy="-327.75" rx="43.67" ry="18"/>
+<text text-anchor="start" x="733.51" y="-323.7" font-family="Times New Roman,serif" font-weight="bold" font-size="14.00" fill="white">⊤</text>
+<text text-anchor="start" x="749.26" y="-323.7" font-family="Times New Roman,serif" font-size="14.00" fill="white">:mem</text>
+</g>
+<!-- TOP&#45;&gt;MEM_TOP -->
+<g id="edge27" class="edge">
+<title>TOP&#45;&gt;MEM_TOP</title>
+<path fill="none" stroke="black" d="M498.57,-404.5C542.92,-391.53 650.2,-360.14 711.86,-342.1"/>
+<polygon fill="black" stroke="black" points="712.75,-345.49 721.37,-339.32 710.79,-338.77 712.75,-345.49"/>
+</g>
+<!-- TUPLE_TOP -->
+<g id="node19" class="node">
+<title>TUPLE_TOP</title>
+<ellipse fill="pink" stroke="black" cx="950.51" cy="-327.75" rx="42.65" ry="18"/>
+<text text-anchor="start" x="927.26" y="-323.7" font-family="Times New Roman,serif" font-weight="bold" font-size="14.00">⊤</text>
+<text text-anchor="start" x="943.01" y="-323.7" font-family="Times New Roman,serif" font-size="14.00">:tuple</text>
+</g>
+<!-- TOP&#45;&gt;TUPLE_TOP -->
+<g id="edge30" class="edge">
+<title>TOP&#45;&gt;TUPLE_TOP</title>
+<path fill="none" stroke="black" d="M499.4,-406.76C569.58,-394.62 798.17,-355.09 900.36,-337.42"/>
+<polygon fill="black" stroke="black" points="900.85,-340.89 910.1,-335.74 899.65,-333.99 900.85,-340.89"/>
+</g>
+<!-- BOT -->
+<g id="node2" class="node">
+<title>BOT</title>
+<ellipse fill="black" stroke="black" cx="448.51" cy="-21.12" rx="21.12" ry="21.12"/>
+<text text-anchor="start" x="440.63" y="-16.7" font-family="Times New Roman,serif" font-weight="bold" font-size="14.00" fill="white">⊥</text>
+</g>
+<!-- CTRL -->
+<g id="node4" class="node">
+<title>CTRL</title>
+<ellipse fill="yellow" stroke="black" cx="36.51" cy="-104.75" rx="36.51" ry="18"/>
+<text text-anchor="start" x="17.76" y="-100.7" font-family="Times New Roman,serif" font-weight="bold" font-size="14.00">⊥</text>
+<text text-anchor="start" x="33.51" y="-100.7" font-family="Times New Roman,serif" font-size="14.00">:ctrl</text>
+</g>
+<!-- XCTRL&#45;&gt;CTRL -->
+<g id="edge2" class="edge">
+<title>XCTRL&#45;&gt;CTRL</title>
+<path fill="none" stroke="black" d="M36.51,-309.5C36.51,-271.02 36.51,-181.25 36.51,-134.4"/>
+<polygon fill="black" stroke="black" points="40.01,-134.45 36.51,-124.45 33.01,-134.45 40.01,-134.45"/>
+</g>
+<!-- CTRL&#45;&gt;BOT -->
+<g id="edge3" class="edge">
+<title>CTRL&#45;&gt;BOT</title>
+<path fill="none" stroke="black" d="M69.88,-97.14C147.7,-81.72 340.42,-43.54 416.69,-28.43"/>
+<polygon fill="black" stroke="black" points="417.29,-31.88 426.41,-26.5 415.93,-25.01 417.29,-31.88"/>
+</g>
+<!-- INT_MINDOTS -->
+<g id="node7" class="node">
+<title>INT_MINDOTS</title>
+<ellipse fill="lightblue" stroke="black" cx="68.51" cy="-216.25" rx="27" ry="18"/>
+<text text-anchor="middle" x="68.51" y="-211.2" font-family="Times New Roman,serif" font-size="14.00">...</text>
+</g>
+<!-- INT_TOP&#45;&gt;INT_MINDOTS -->
+<g id="edge5" class="edge">
+<title>INT_TOP&#45;&gt;INT_MINDOTS</title>
+<path fill="none" stroke="black" d="M200.95,-312.66C174.03,-293.27 125.48,-258.29 95.24,-236.5"/>
+<polygon fill="black" stroke="black" points="97.5,-233.82 87.34,-230.81 93.41,-239.5 97.5,-233.82"/>
+</g>
+<!-- INT_ZERO -->
+<g id="node8" class="node">
+<title>INT_ZERO</title>
+<ellipse fill="lightblue" stroke="black" cx="156.51" cy="-216.25" rx="18" ry="18"/>
+<text text-anchor="middle" x="156.51" y="-211.2" font-family="Times New Roman,serif" font-size="14.00">0</text>
+</g>
+<!-- INT_TOP&#45;&gt;INT_ZERO -->
+<g id="edge6" class="edge">
+<title>INT_TOP&#45;&gt;INT_ZERO</title>
+<path fill="none" stroke="black" d="M210.79,-310.12C200.2,-292 183.15,-262.82 170.98,-242.01"/>
+<polygon fill="black" stroke="black" points="174.12,-240.45 166.05,-233.58 168.08,-243.98 174.12,-240.45"/>
+</g>
+<!-- INT_MAXDOTS -->
+<g id="node9" class="node">
+<title>INT_MAXDOTS</title>
+<ellipse fill="lightblue" stroke="black" cx="244.51" cy="-216.25" rx="27" ry="18"/>
+<text text-anchor="middle" x="244.51" y="-211.2" font-family="Times New Roman,serif" font-size="14.00">...</text>
+</g>
+<!-- INT_TOP&#45;&gt;INT_MAXDOTS -->
+<g id="edge7" class="edge">
+<title>INT_TOP&#45;&gt;INT_MAXDOTS</title>
+<path fill="none" stroke="black" d="M224.26,-309.64C228.03,-292.44 233.9,-265.64 238.35,-245.33"/>
+<polygon fill="black" stroke="black" points="241.74,-246.23 240.46,-235.72 234.9,-244.73 241.74,-246.23"/>
+</g>
+<!-- INT_BOT -->
+<g id="node6" class="node">
+<title>INT_BOT</title>
+<ellipse fill="lightblue" stroke="black" cx="220.51" cy="-104.75" rx="33.95" ry="18"/>
+<text text-anchor="start" x="203.63" y="-100.7" font-family="Times New Roman,serif" font-weight="bold" font-size="14.00">⊥</text>
+<text text-anchor="start" x="219.38" y="-100.7" font-family="Times New Roman,serif" font-size="14.00">:int</text>
+</g>
+<!-- INT_BOT&#45;&gt;BOT -->
+<g id="edge11" class="edge">
+<title>INT_BOT&#45;&gt;BOT</title>
+<path fill="none" stroke="black" d="M248.01,-93.9C290.83,-78.57 373.15,-49.1 417.83,-33.11"/>
+<polygon fill="black" stroke="black" points="418.93,-36.43 427.17,-29.76 416.57,-29.84 418.93,-36.43"/>
+</g>
+<!-- INT_MINDOTS&#45;&gt;INT_BOT -->
+<g id="edge8" class="edge">
+<title>INT_MINDOTS&#45;&gt;INT_BOT</title>
+<path fill="none" stroke="black" d="M86.24,-202.47C112.22,-183.76 160.89,-148.7 191.95,-126.33"/>
+<polygon fill="black" stroke="black" points="193.68,-129.39 199.75,-120.71 189.59,-123.71 193.68,-129.39"/>
+</g>
+<!-- INT_MINDOTS&#45;&gt;INT_ZERO -->
+<!-- INT_ZERO&#45;&gt;INT_BOT -->
+<g id="edge9" class="edge">
+<title>INT_ZERO&#45;&gt;INT_BOT</title>
+<path fill="none" stroke="black" d="M165.14,-200.48C175.34,-183.02 192.52,-153.64 205.04,-132.22"/>
+<polygon fill="black" stroke="black" points="207.97,-134.13 210,-123.73 201.93,-130.6 207.97,-134.13"/>
+</g>
+<!-- INT_ZERO&#45;&gt;INT_MAXDOTS -->
+<!-- INT_MAXDOTS&#45;&gt;INT_BOT -->
+<g id="edge10" class="edge">
+<title>INT_MAXDOTS&#45;&gt;INT_BOT</title>
+<path fill="none" stroke="black" d="M240.76,-198.14C237.01,-181.04 231.18,-154.46 226.74,-134.19"/>
+<polygon fill="black" stroke="black" points="230.2,-133.6 224.64,-124.58 223.36,-135.09 230.2,-133.6"/>
+</g>
+<!-- PTR0 -->
+<g id="node11" class="node">
+<title>PTR0</title>
+<polygon fill="none" stroke="none" points="387.51,-131.25 333.51,-131.25 333.51,-78.25 387.51,-78.25 387.51,-131.25"/>
+<polygon fill="green" stroke="none" points="342.51,-104.75 342.51,-127.25 378.51,-127.25 378.51,-104.75 342.51,-104.75"/>
+<polygon fill="none" stroke="black" points="342.51,-104.75 342.51,-127.25 378.51,-127.25 378.51,-104.75 342.51,-104.75"/>
+<text text-anchor="start" x="346.63" y="-110.95" font-family="Times New Roman,serif" font-size="14.00" fill="white">*ptr?</text>
+<polygon fill="lightgreen" stroke="none" points="342.51,-82.25 342.51,-104.75 378.51,-104.75 378.51,-82.25 342.51,-82.25"/>
+<polygon fill="none" stroke="black" points="342.51,-82.25 342.51,-104.75 378.51,-104.75 378.51,-82.25 342.51,-82.25"/>
+<text text-anchor="start" x="345.51" y="-88.45" font-family="Times New Roman,serif" font-size="14.00">struct</text>
+</g>
+<!-- PTR&#45;&gt;PTR0 -->
+<g id="edge15" class="edge">
+<title>PTR&#45;&gt;PTR0</title>
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+<polygon fill="black" stroke="black" points="364.01,-142.68 360.51,-132.68 357.01,-142.68 364.01,-142.68"/>
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+<!-- STRUCT_TOP&#45;&gt;STRUCT_S1 -->
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+<title>STRUCT_TOP&#45;&gt;STRUCT_S1</title>
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+<title>STRUCT_TOP&#45;&gt;STRUCT_S2</title>
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+<!-- STRUCT_S1&#45;&gt;STRUCT_S2 -->
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+<!-- STRUCT_S2&#45;&gt;STRUCT_SN -->
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+<!-- MEM_BOT -->
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+<!-- TUPLE_TOP&#45;&gt;TUPLE2 -->
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