From 91b7598b22f89319f64054daf42c950de3eb6451 Mon Sep 17 00:00:00 2001
From: Elizabeth Hunt <me@liz.coffee>
Date: Wed, 7 Jan 2026 19:29:30 -0800
Subject: Adding some of my favorite toys

---
 src/toys/turing/js/samples.js | 88 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 src/toys/turing/js/samples.js

(limited to 'src/toys/turing/js/samples.js')

diff --git a/src/toys/turing/js/samples.js b/src/toys/turing/js/samples.js
new file mode 100644
index 0000000..4d76b49
--- /dev/null
+++ b/src/toys/turing/js/samples.js
@@ -0,0 +1,88 @@
+// Example programs with initial tape states
+export const EXAMPLE_PROGRAMS = [
+  {
+    name: "Replace two B's",
+    code: `#start q0
+#accept acc
+#reject rej
+
+q0 B 1 R q1
+q1 1 1 R q1
+q1 B 1 R acc`,
+    initialTape: ""
+  },
+  {
+    name: "Binary equality checker",
+    code: `// https://stackoverflow.com/questions/59045832
+
+#start q0
+#accept acc
+#reject rej
+
+q0 0 X R q1
+q0 1 X R q2
+q0 = = R q7
+q1 0 0 R q1
+q1 1 1 R q1
+q1 = = R q3
+q2 0 0 R q2
+q2 1 1 R q2
+q2 = = R q4
+q3 X X R q3
+q3 0 X L q5
+q3 1 1 L rej
+q3 B B L rej
+q4 X X R q4
+q4 0 0 L rej
+q4 B B L rej
+q4 1 X L q5
+q5 X X L q5
+q5 = = L q6
+q6 0 0 L q6
+q6 1 1 L q6
+q6 X X R q0
+q7 X X R q7
+q7 B B L q8
+q7 0 0 L rej
+q7 1 1 L rej
+q8 X X L q8
+q8 0 0 L q8
+q8 1 1 L q8
+q8 = = acc`,
+    initialTape: "1011=1011"
+  },
+  {
+    name: "Binary addition",
+    code: `// https://stackoverflow.com/questions/59045832
+
+#start q0
+#accept acc
+#reject rej
+
+q0 B B R q0
+q0 0 0 R q0
+q0 1 1 R q0
+q0 + + R q1
+q1 0 0 R q1
+q1 1 1 R q1
+q1 B B L q2
+q2 0 1 L q2
+q2 1 0 L q3
+q2 + + R q5
+q3 0 0 L q3
+q3 1 1 L q3
+q3 + + L q4
+q4 0 1 R q0
+q4 1 0 L q4
+q4 B 1 R q0
+q5 1 B R q5
+q5 B B R q6
+q6 B B L q6
+q6 + B L q7
+q7 0 0 L q7
+q7 1 1 L q7
+q7 B B R acc
+`,
+    initialTape: "101+110"
+  }
+];
-- 
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