3 files changed, 1384 insertions, 0 deletions
diff --git a/projects/12/KeyboardTest/Keyboard.jack b/projects/12/KeyboardTest/Keyboard.jack
new file mode 100644
index 0000000..2aba72e
--- /dev/null
+++ b/projects/12/KeyboardTest/Keyboard.jack
@@ -0,0 +1,125 @@
+// This file is part of www.nand2tetris.org
+// and the book "The Elements of Computing Systems"
+// by Nisan and Schocken, MIT Press.
+// File name: projects/12/Keyboard.jack
+
+/**
+ * A library for handling user input from the keyboard.
+ */
+class Keyboard {
+
+    /** Initializes the keyboard. */
+    function void init() {
+        return;
+    } 
+
+    /**
+     * Returns the character of the currently pressed key on the keyboard;
+     * if no key is currently pressed, returns 0.
+     *
+     * Recognizes all ASCII characters, as well as the following keys:
+     * new line = 128 = String.newline()
+     * backspace = 129 = String.backspace()
+     * left arrow = 130
+     * up arrow = 131
+     * right arrow = 132
+     * down arrow = 133
+     * home = 134
+     * End = 135
+     * page up = 136
+     * page down = 137
+     * insert = 138
+     * delete = 139
+     * ESC = 140
+     * F1 - F12 = 141 - 152
+     */
+    function char keyPressed() {
+        return Memory.peek(24576);
+    }
+
+    /**								
+     * Waits until a key is pressed on the keyboard and released,
+     * then echoes the key to the screen, and returns the character 
+     * of the pressed key.
+     */
+    function char readChar() {
+        var int key, key1;
+        let key = 0;
+        while (key = 0) {
+            let key = Memory.peek(24576);
+        }
+        let key1 = key;
+        while (key1 = key) {
+            let key1 = Memory.peek(24576);
+        }
+        if ((key > 31) & (key < 127) | (key = 128) | (key = 129)) {
+            do Output.printChar(key);
+        }
+        return key;
+    }
+
+    /**								
+     * Displays the message on the screen, reads from the keyboard the entered
+     * text until a newline character is detected, echoes the text to the screen,
+     * and returns its value. Also handles user backspaces.
+     */
+    function String readLine(String message) {
+        var int c;
+        var String s;
+        let s = String.new(140);
+        do Output.printString(message);
+        let c = Keyboard.readChar();
+        while (~(c = 128)) {
+            if (c = 129) {
+                if (s.length() > 0) {
+                    do s.eraseLastChar();
+                }
+            } else {
+                do s.appendChar(c);
+            }
+            let c = Keyboard.readChar();
+        }
+        return s;
+    }   
+
+    /**								
+     * Displays the message on the screen, reads from the keyboard the entered
+     * text until a newline character is detected, echoes the text to the screen,
+     * and returns its integer value (until the first non-digit character in the
+     * entered text is detected). Also handles user backspaces. 
+     */
+    function int readInt(String message) {
+        var int n, i;
+        var char t;
+        var String s;
+        var boolean neg, done;
+        do Output.printString(message);
+        let n = 0;
+        let neg = false;
+        let s = Keyboard.readLine("");
+        let i = 0;
+        if (s.charAt(0) = 45) {
+            let i = 1;
+            let neg = true;
+        }
+        let t = s.charAt(i);
+        if ((t < 48) | (t > 57)) {
+            do Sys.error(3);
+            do Output.printString("Keyboard.readInt: the input data is not number!");
+        }
+        let done = false;
+        while (~done) {
+            if ((s.charAt(i) > 47) & (s.charAt(i) < 58)) {
+                let n = n * 10 + (s.charAt(i) - 48);
+            } else {
+                let done = true;
+            }
+            let i = i + 1;
+            let done = done | (i + 1 > s.length());
+        }
+        if (neg) {
+            let n = - n;
+        }
+        return n;
+    }
+}
diff --git a/projects/12/KeyboardTest/Keyboard.vm b/projects/12/KeyboardTest/Keyboard.vm
new file mode 100644
index 0000000..bebd916
--- /dev/null
+++ b/projects/12/KeyboardTest/Keyboard.vm
@@ -0,0 +1,310 @@
+function Keyboard.init 0
+push constant 0
+return
+function Keyboard.keyPressed 0
+push constant 24576
+call Memory.peek 1
+return
+function Keyboard.readChar 2
+push constant 0
+pop local 0
+label WHILE_EXP0
+push local 0
+push constant 0
+eq
+not
+if-goto WHILE_END0
+push constant 24576
+call Memory.peek 1
+pop local 0
+goto WHILE_EXP0
+label WHILE_END0
+push local 0
+pop local 1
+label WHILE_EXP1
+push local 1
+push local 0
+eq
+not
+if-goto WHILE_END1
+push constant 24576
+call Memory.peek 1
+pop local 1
+goto WHILE_EXP1
+label WHILE_END1
+push local 0
+push constant 31
+gt
+push local 0
+push constant 127
+lt
+and
+push local 0
+push constant 128
+eq
+or
+push local 0
+push constant 129
+eq
+or
+if-goto IF_TRUE0
+goto IF_FALSE0
+label IF_TRUE0
+push local 0
+call Output.printChar 1
+pop temp 0
+label IF_FALSE0
+push local 0
+return
+function Keyboard.readLine 2
+push constant 140
+call String.new 1
+pop local 1
+push argument 0
+call Output.printString 1
+pop temp 0
+call Keyboard.readChar 0
+pop local 0
+label WHILE_EXP0
+push local 0
+push constant 128
+eq
+not
+not
+if-goto WHILE_END0
+push local 0
+push constant 129
+eq
+if-goto IF_TRUE0
+goto IF_FALSE0
+label IF_TRUE0
+push local 1
+call String.length 1
+push constant 0
+gt
+if-goto IF_TRUE1
+goto IF_FALSE1
+label IF_TRUE1
+push local 1
+call String.eraseLastChar 1
+pop temp 0
+label IF_FALSE1
+goto IF_END0
+label IF_FALSE0
+push local 1
+push local 0
+call String.appendChar 2
+pop temp 0
+label IF_END0
+call Keyboard.readChar 0
+pop local 0
+goto WHILE_EXP0
+label WHILE_END0
+push local 1
+return
+function Keyboard.readInt 6
+push argument 0
+call Output.printString 1
+pop temp 0
+push constant 0
+pop local 0
+push constant 0
+pop local 4
+push constant 0
+call String.new 1
+call Keyboard.readLine 1
+pop local 3
+push constant 0
+pop local 1
+push local 3
+push constant 0
+call String.charAt 2
+push constant 45
+eq
+if-goto IF_TRUE0
+goto IF_FALSE0
+label IF_TRUE0
+push constant 1
+pop local 1
+push constant 0
+not
+pop local 4
+label IF_FALSE0
+push local 3
+push local 1
+call String.charAt 2
+pop local 2
+push local 2
+push constant 48
+lt
+push local 2
+push constant 57
+gt
+or
+if-goto IF_TRUE1
+goto IF_FALSE1
+label IF_TRUE1
+push constant 3
+call Sys.error 1
+pop temp 0
+push constant 47
+call String.new 1
+push constant 75
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 121
+call String.appendChar 2
+push constant 98
+call String.appendChar 2
+push constant 111
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 114
+call String.appendChar 2
+push constant 100
+call String.appendChar 2
+push constant 46
+call String.appendChar 2
+push constant 114
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 100
+call String.appendChar 2
+push constant 73
+call String.appendChar 2
+push constant 110
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 58
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 104
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 105
+call String.appendChar 2
+push constant 110
+call String.appendChar 2
+push constant 112
+call String.appendChar 2
+push constant 117
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 100
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 105
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 110
+call String.appendChar 2
+push constant 111
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 110
+call String.appendChar 2
+push constant 117
+call String.appendChar 2
+push constant 109
+call String.appendChar 2
+push constant 98
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 114
+call String.appendChar 2
+push constant 33
+call String.appendChar 2
+call Output.printString 1
+pop temp 0
+label IF_FALSE1
+push constant 0
+pop local 5
+label WHILE_EXP0
+push local 5
+not
+not
+if-goto WHILE_END0
+push local 3
+push local 1
+call String.charAt 2
+push constant 47
+gt
+push local 3
+push local 1
+call String.charAt 2
+push constant 58
+lt
+and
+if-goto IF_TRUE2
+goto IF_FALSE2
+label IF_TRUE2
+push local 0
+push constant 10
+call Math.multiply 2
+push local 3
+push local 1
+call String.charAt 2
+push constant 48
+sub
+add
+pop local 0
+goto IF_END2
+label IF_FALSE2
+push constant 0
+not
+pop local 5
+label IF_END2
+push local 1
+push constant 1
+add
+pop local 1
+push local 5
+push local 1
+push constant 1
+add
+push local 3
+call String.length 1
+gt
+or
+pop local 5
+goto WHILE_EXP0
+label WHILE_END0
+push local 4
+if-goto IF_TRUE3
+goto IF_FALSE3
+label IF_TRUE3
+push local 0
+neg
+pop local 0
+label IF_FALSE3
+push local 0
+return
diff --git a/projects/12/KeyboardTest/Main.vm b/projects/12/KeyboardTest/Main.vm
new file mode 100644
index 0000000..aec89d6
--- /dev/null
+++ b/projects/12/KeyboardTest/Main.vm
@@ -0,0 +1,949 @@
+function Main.main 5
+push constant 0
+pop local 4
+push constant 16
+call String.new 1
+push constant 107
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 121
+call String.appendChar 2
+push constant 80
+call String.appendChar 2
+push constant 114
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 100
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 58
+call String.appendChar 2
+call Output.printString 1
+pop temp 0
+call Output.println 0
+pop temp 0
+label WHILE_EXP0
+push local 4
+not
+not
+if-goto WHILE_END0
+push constant 32
+call String.new 1
+push constant 80
+call String.appendChar 2
+push constant 108
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 112
+call String.appendChar 2
+push constant 114
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 104
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 39
+call String.appendChar 2
+push constant 80
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 103
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 68
+call String.appendChar 2
+push constant 111
+call String.appendChar 2
+push constant 119
+call String.appendChar 2
+push constant 110
+call String.appendChar 2
+push constant 39
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 107
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 121
+call String.appendChar 2
+call Output.printString 1
+pop temp 0
+label WHILE_EXP1
+push local 1
+push constant 0
+eq
+not
+if-goto WHILE_END1
+call Keyboard.keyPressed 0
+pop local 1
+goto WHILE_EXP1
+label WHILE_END1
+push local 1
+pop local 0
+label WHILE_EXP2
+push local 1
+push constant 0
+eq
+not
+not
+if-goto WHILE_END2
+call Keyboard.keyPressed 0
+pop local 1
+goto WHILE_EXP2
+label WHILE_END2
+call Output.println 0
+pop temp 0
+push local 0
+push constant 137
+eq
+if-goto IF_TRUE0
+goto IF_FALSE0
+label IF_TRUE0
+push constant 2
+call String.new 1
+push constant 111
+call String.appendChar 2
+push constant 107
+call String.appendChar 2
+call Output.printString 1
+pop temp 0
+call Output.println 0
+pop temp 0
+push constant 0
+not
+pop local 4
+label IF_FALSE0
+goto WHILE_EXP0
+label WHILE_END0
+push constant 0
+pop local 4
+push constant 14
+call String.new 1
+push constant 114
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 100
+call String.appendChar 2
+push constant 67
+call String.appendChar 2
+push constant 104
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 114
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 58
+call String.appendChar 2
+call Output.printString 1
+pop temp 0
+call Output.println 0
+pop temp 0
+push constant 59
+call String.new 1
+push constant 40
+call String.appendChar 2
+push constant 86
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 114
+call String.appendChar 2
+push constant 105
+call String.appendChar 2
+push constant 102
+call String.appendChar 2
+push constant 121
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 104
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 104
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 112
+call String.appendChar 2
+push constant 114
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 100
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 99
+call String.appendChar 2
+push constant 104
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 114
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 99
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 114
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 105
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 99
+call String.appendChar 2
+push constant 104
+call String.appendChar 2
+push constant 111
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 100
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 111
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 104
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 99
+call String.appendChar 2
+push constant 114
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 110
+call String.appendChar 2
+push constant 41
+call String.appendChar 2
+call Output.printString 1
+pop temp 0
+call Output.println 0
+pop temp 0
+label WHILE_EXP3
+push local 4
+not
+not
+if-goto WHILE_END3
+push constant 29
+call String.new 1
+push constant 80
+call String.appendChar 2
+push constant 108
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 112
+call String.appendChar 2
+push constant 114
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 104
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 110
+call String.appendChar 2
+push constant 117
+call String.appendChar 2
+push constant 109
+call String.appendChar 2
+push constant 98
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 114
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 39
+call String.appendChar 2
+push constant 51
+call String.appendChar 2
+push constant 39
+call String.appendChar 2
+push constant 58
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+call Output.printString 1
+pop temp 0
+call Keyboard.readChar 0
+pop local 0
+call Output.println 0
+pop temp 0
+push local 0
+push constant 51
+eq
+if-goto IF_TRUE1
+goto IF_FALSE1
+label IF_TRUE1
+push constant 2
+call String.new 1
+push constant 111
+call String.appendChar 2
+push constant 107
+call String.appendChar 2
+call Output.printString 1
+pop temp 0
+call Output.println 0
+pop temp 0
+push constant 0
+not
+pop local 4
+label IF_FALSE1
+goto WHILE_EXP3
+label WHILE_END3
+push constant 0
+pop local 4
+push constant 14
+call String.new 1
+push constant 114
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 100
+call String.appendChar 2
+push constant 76
+call String.appendChar 2
+push constant 105
+call String.appendChar 2
+push constant 110
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 58
+call String.appendChar 2
+call Output.printString 1
+pop temp 0
+call Output.println 0
+pop temp 0
+push constant 38
+call String.new 1
+push constant 40
+call String.appendChar 2
+push constant 86
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 114
+call String.appendChar 2
+push constant 105
+call String.appendChar 2
+push constant 102
+call String.appendChar 2
+push constant 121
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 99
+call String.appendChar 2
+push constant 104
+call String.appendChar 2
+push constant 111
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 110
+call String.appendChar 2
+push constant 100
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 117
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 103
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 111
+call String.appendChar 2
+push constant 102
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 39
+call String.appendChar 2
+push constant 98
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 99
+call String.appendChar 2
+push constant 107
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 112
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 99
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 39
+call String.appendChar 2
+push constant 41
+call String.appendChar 2
+call Output.printString 1
+pop temp 0
+call Output.println 0
+pop temp 0
+label WHILE_EXP4
+push local 4
+not
+not
+if-goto WHILE_END4
+push constant 36
+call String.new 1
+push constant 80
+call String.appendChar 2
+push constant 108
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 121
+call String.appendChar 2
+push constant 112
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 39
+call String.appendChar 2
+push constant 74
+call String.appendChar 2
+push constant 65
+call String.appendChar 2
+push constant 67
+call String.appendChar 2
+push constant 75
+call String.appendChar 2
+push constant 39
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 110
+call String.appendChar 2
+push constant 100
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 112
+call String.appendChar 2
+push constant 114
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 110
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 114
+call String.appendChar 2
+push constant 58
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+call Keyboard.readLine 1
+pop local 2
+push local 2
+call String.length 1
+push constant 4
+eq
+if-goto IF_TRUE2
+goto IF_FALSE2
+label IF_TRUE2
+push local 2
+push constant 0
+call String.charAt 2
+push constant 74
+eq
+push local 2
+push constant 1
+call String.charAt 2
+push constant 65
+eq
+and
+push local 2
+push constant 2
+call String.charAt 2
+push constant 67
+eq
+and
+push local 2
+push constant 3
+call String.charAt 2
+push constant 75
+eq
+and
+if-goto IF_TRUE3
+goto IF_FALSE3
+label IF_TRUE3
+push constant 2
+call String.new 1
+push constant 111
+call String.appendChar 2
+push constant 107
+call String.appendChar 2
+call Output.printString 1
+pop temp 0
+call Output.println 0
+pop temp 0
+push constant 0
+not
+pop local 4
+label IF_FALSE3
+label IF_FALSE2
+goto WHILE_EXP4
+label WHILE_END4
+push constant 0
+pop local 4
+push constant 13
+call String.new 1
+push constant 114
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 100
+call String.appendChar 2
+push constant 73
+call String.appendChar 2
+push constant 110
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 58
+call String.appendChar 2
+call Output.printString 1
+pop temp 0
+call Output.println 0
+pop temp 0
+push constant 38
+call String.new 1
+push constant 40
+call String.appendChar 2
+push constant 86
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 114
+call String.appendChar 2
+push constant 105
+call String.appendChar 2
+push constant 102
+call String.appendChar 2
+push constant 121
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 99
+call String.appendChar 2
+push constant 104
+call String.appendChar 2
+push constant 111
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 110
+call String.appendChar 2
+push constant 100
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 117
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 103
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 111
+call String.appendChar 2
+push constant 102
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 39
+call String.appendChar 2
+push constant 98
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 99
+call String.appendChar 2
+push constant 107
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 112
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 99
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 39
+call String.appendChar 2
+push constant 41
+call String.appendChar 2
+call Output.printString 1
+pop temp 0
+call Output.println 0
+pop temp 0
+label WHILE_EXP5
+push local 4
+not
+not
+if-goto WHILE_END5
+push constant 38
+call String.new 1
+push constant 80
+call String.appendChar 2
+push constant 108
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 121
+call String.appendChar 2
+push constant 112
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 39
+call String.appendChar 2
+push constant 45
+call String.appendChar 2
+push constant 51
+call String.appendChar 2
+push constant 50
+call String.appendChar 2
+push constant 49
+call String.appendChar 2
+push constant 50
+call String.appendChar 2
+push constant 51
+call String.appendChar 2
+push constant 39
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 97
+call String.appendChar 2
+push constant 110
+call String.appendChar 2
+push constant 100
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 112
+call String.appendChar 2
+push constant 114
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 110
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 114
+call String.appendChar 2
+push constant 58
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+call Keyboard.readInt 1
+pop local 3
+push local 3
+push constant 32123
+neg
+eq
+if-goto IF_TRUE4
+goto IF_FALSE4
+label IF_TRUE4
+push constant 2
+call String.new 1
+push constant 111
+call String.appendChar 2
+push constant 107
+call String.appendChar 2
+call Output.printString 1
+pop temp 0
+call Output.println 0
+pop temp 0
+push constant 0
+not
+pop local 4
+label IF_FALSE4
+goto WHILE_EXP5
+label WHILE_END5
+call Output.println 0
+pop temp 0
+push constant 27
+call String.new 1
+push constant 84
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 99
+call String.appendChar 2
+push constant 111
+call String.appendChar 2
+push constant 109
+call String.appendChar 2
+push constant 112
+call String.appendChar 2
+push constant 108
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 116
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 100
+call String.appendChar 2
+push constant 32
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 117
+call String.appendChar 2
+push constant 99
+call String.appendChar 2
+push constant 99
+call String.appendChar 2
+push constant 101
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 115
+call String.appendChar 2
+push constant 102
+call String.appendChar 2
+push constant 117
+call String.appendChar 2
+push constant 108
+call String.appendChar 2
+push constant 108
+call String.appendChar 2
+push constant 121
+call String.appendChar 2
+call Output.printString 1
+pop temp 0
+push constant 0
+return