150 files changed, 5945 insertions, 0 deletions

diff --git a/tools/.DS_Store b/tools/.DS_Store
new file mode 100644
index 0000000..80fb89e
--- /dev/null
+++ b/tools/.DS_Store
diff --git a/tools/Assembler.bat b/tools/Assembler.bat
new file mode 100644
index 0000000..93260ec
--- /dev/null
+++ b/tools/Assembler.bat
@@ -0,0 +1,27 @@
+@echo off

+

+rem  $Id: Assembler.bat,v 1.2 2014/05/10 00:52:43 marka Exp $

+rem  mark.armbrust@pobox.com

+

+setlocal

+if not "%2"=="" goto :USAGE

+if "%~1"=="/?" (

+:USAGE

+  echo Usage:

+  echo     Assembler               Starts the assembler in interactive mode.

+  echo     Assembler FILE[.asm]    Assembles FILE.asm to FILE.hack.

+  exit -b

+)

+if not "%~1"=="" (

+  set "_arg1=%~f1"

+)

+pushd "%~dp0"

+if "%~1"=="" (

+  start javaw -classpath "%CLASSPATH%;bin/classes;bin/lib/Hack.jar;bin/lib/HackGUI.jar;bin/lib/Compilers.jar;bin/lib/AssemblerGUI.jar;bin/lib/TranslatorsGUI.jar" ^

+    HackAssemblerMain

+) else (

+  echo Assembling "%_arg1%"

+  java -classpath "%CLASSPATH%;bin/classes;bin/lib/Hack.jar;bin/lib/HackGUI.jar;bin/lib/Compilers.jar;bin/lib/AssemblerGUI.jar;bin/lib/TranslatorsGUI.jar" ^

+    HackAssemblerMain "%_arg1%"

+)

+popd

diff --git a/tools/Assembler.sh b/tools/Assembler.sh
new file mode 100644
index 0000000..70db569
--- /dev/null
+++ b/tools/Assembler.sh
@@ -0,0 +1,32 @@
+#!/usr/bin/env sh
+
+# $Id: Assembler.sh,v 1.1 2014/06/17 21:14:01 marka Exp $
+# mark.armbrust@pobox.com
+
+# User's CDPATH can interfere with cd in this script
+unset CDPATH
+# Get the true name of this script
+script="`test -L "$0" && readlink -n "$0" || echo "$0"`"
+dir="$PWD"
+cd "`dirname "$script"`"
+if [ \( $# -gt 1 \) -o \( "$1" = "-h" \) -o \( "$1" = "--help" \) ]
+then
+	echo "Usage:"
+	echo "    `basename "$0"`               Starts the assembler in interactive mode."
+	echo "    `basename "$0"` FILE[.asm]    Assembles FILE.asm to FILE.hack."
+elif [ $# -eq 0 ]
+then
+	# Run assembler in interactive mode
+	java -classpath "${CLASSPATH}:bin/classes:bin/lib/Hack.jar:bin/lib/HackGUI.jar:bin/lib/Compilers.jar:bin/lib/AssemblerGUI.jar:bin/lib/TranslatorsGUI.jar" HackAssemblerMain &
+else
+	# Convert arg1 to an absolute path and run assembler with arg1.
+	if [ `echo "$1" | sed -e "s/\(.\).*/\1/"` = / ]
+	then
+		arg1="$1"
+	else
+		arg1="${dir}/$1"
+	fi
+	echo Assembling "$arg1"
+	java -classpath "${CLASSPATH}:bin/classes:bin/lib/Hack.jar:bin/lib/HackGUI.jar:bin/lib/Compilers.jar:bin/lib/AssemblerGUI.jar:bin/lib/TranslatorsGUI.jar" HackAssemblerMain "$arg1"
+fi
+
diff --git a/tools/CPUEmulator.bat b/tools/CPUEmulator.bat
new file mode 100644
index 0000000..f92cf40
--- /dev/null
+++ b/tools/CPUEmulator.bat
@@ -0,0 +1,29 @@
+@echo off

+

+rem  $Id: CPUEmulator.bat,v 1.3 2014/05/10 00:52:43 marka Exp $

+rem  mark.armbrust@pobox.com

+

+setlocal

+if not "%2"=="" goto :USAGE

+if "%~1"=="/?" (

+:USAGE

+  echo Usage:

+  echo     CPUEmulator             Starts the CPU Emulator in interactive mode.

+  echo     CPUEmulator FILE.tst    Starts the CPU Emulator and runs the FILE.tst

+  echo                             test script.  The success/failure message

+  echo                             is printed to the command console.

+  exit -b

+)

+if not "%~1"=="" (

+  set "_arg1=%~f1"

+)

+pushd "%~dp0"

+if "%~1"=="" (

+  start javaw -classpath "%CLASSPATH%;bin/classes;bin/lib/Hack.jar;bin/lib/HackGUI.jar;bin/lib/Simulators.jar;bin/lib/SimulatorsGUI.jar;bin/lib/Compilers.jar" ^

+    CPUEmulatorMain

+) else (

+rem  echo Running "%_arg1%"

+  java -classpath "%CLASSPATH%;bin/classes;bin/lib/Hack.jar;bin/lib/HackGUI.jar;bin/lib/Simulators.jar;bin/lib/SimulatorsGUI.jar;bin/lib/Compilers.jar" ^

+    CPUEmulatorMain "%_arg1%"

+)

+popd

diff --git a/tools/CPUEmulator.sh b/tools/CPUEmulator.sh
new file mode 100644
index 0000000..033d9d7
--- /dev/null
+++ b/tools/CPUEmulator.sh
@@ -0,0 +1,33 @@
+#!/usr/bin/env sh
+
+# $Id: CPUEmulator.sh,v 1.1 2014/06/17 21:14:01 marka Exp $
+# mark.armbrust@pobox.com
+
+# User's CDPATH can interfere with cd in this script
+unset CDPATH
+# Get the true name of this script
+script="`test -L "$0" && readlink -n "$0" || echo "$0"`"
+dir="$PWD"
+cd "`dirname "$script"`"
+if [ \( $# -gt 1 \) -o \( "$1" = "-h" \) -o \( "$1" = "--help" \) ]
+then
+	echo "Usage:"
+	echo "    `basename "$0"`             Starts the CPU Emulator in interactive mode."
+	echo "    `basename "$0"` FILE.tst    Starts the CPU Emulator and runs the File.tst"
+	echo "                               test script.  The success/failure message"
+	echo "                               is printed to the command console."
+elif [ $# -eq 0 ]
+then
+	# Run CPU emulator in interactive mode
+	java -classpath "${CLASSPATH}:bin/classes:bin/lib/Hack.jar:bin/lib/HackGUI.jar:bin/lib/Simulators.jar:bin/lib/SimulatorsGUI.jar:bin/lib/Compilers.jar" CPUEmulatorMain &
+else
+	# Convert arg1 to an absolute path and run CPU emulator with arg1
+	if [ `echo "$1" | sed -e "s/\(.\).*/\1/"` = / ]
+	then
+		arg1="$1"
+	else
+		arg1="${dir}/$1"
+	fi
+#	echo Running "$arg1"
+	java -classpath "${CLASSPATH}:bin/classes:bin/lib/Hack.jar:bin/lib/HackGUI.jar:bin/lib/Simulators.jar:bin/lib/SimulatorsGUI.jar:bin/lib/Compilers.jar" CPUEmulatorMain "$arg1"
+fi
diff --git a/tools/HardwareSimulator.bat b/tools/HardwareSimulator.bat
new file mode 100644
index 0000000..76baa31
--- /dev/null
+++ b/tools/HardwareSimulator.bat
@@ -0,0 +1,30 @@
+@echo off

+

+rem  $Id: HardwareSimulator.bat,v 1.3 2014/05/10 00:52:43 marka Exp $

+rem  mark.armbrust@pobox.com

+

+setlocal

+if not "%2"=="" goto :USAGE

+if "%~1"=="/?" (

+:USAGE

+  echo Usage:

+  echo     HardwareSimulator             Starts the Hardware Simulator in

+  echo                                   interactive mode.

+  echo     HardwareSimulator FILE.tst    Starts the Hardware Simulator and runs the

+  echo                                   FILE.tst test script.  The success/failure

+  echo                                   message is printed to the command console.

+  exit -b

+)

+if not "%~1"=="" (

+  set "_arg1=%~f1"

+)

+pushd "%~dp0"

+if "%~1"=="" (

+  start javaw -classpath "%CLASSPATH%;.;bin/classes;bin/lib/Hack.jar;bin/lib/HackGUI.jar;bin/lib/Simulators.jar;bin/lib/SimulatorsGUI.jar;bin/lib/Compilers.jar" ^

+    HardwareSimulatorMain

+) else (

+rem  echo Running "%_arg1%"

+  java -classpath "%CLASSPATH%;.;bin/classes;bin/lib/Hack.jar;bin/lib/HackGUI.jar;bin/lib/Simulators.jar;bin/lib/SimulatorsGUI.jar;bin/lib/Compilers.jar" ^

+    HardwareSimulatorMain "%_arg1%"

+)

+popd

diff --git a/tools/HardwareSimulator.sh b/tools/HardwareSimulator.sh
new file mode 100755
index 0000000..47e7482
--- /dev/null
+++ b/tools/HardwareSimulator.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env sh
+
+# $Id: HardwareSimulator.sh,v 1.1 2014/06/17 21:14:01 marka Exp $
+# mark.armbrust@pobox.com
+
+# User's CDPATH can interfere with cd in this script
+unset CDPATH
+# Get the true name of this script
+script="`test -L "$0" && readlink -n "$0" || echo "$0"`"
+dir="$PWD"
+cd "`dirname "$script"`"
+if [ \( $# -gt 1 \) -o \( "$1" = "-h" \) -o \( "$1" = "--help" \) ]
+then
+	echo "Usage:"
+	echo "    `basename "$0"`             Starts the Hardware Simulator in"
+	echo "                                     interactive mode."
+	echo "    `basename "$0"` FILE.tst    Starts the Hardware Simulator and runs the"
+	echo "                                     FILE.tst test script.  The success/failure"
+	echo "                                     message is printed to the command console."
+elif [ $# -eq 0 ]
+then
+	# Run hardware simulator in interactive mode
+	java -classpath "${CLASSPATH}:bin/classes:BuiltIn:bin/lib/Hack.jar:bin/lib/HackGUI.jar:bin/lib/Simulators.jar:bin/lib/SimulatorsGUI.jar:bin/lib/Compilers.jar" HardwareSimulatorMain &
+else
+	# Convert arg1 to an absolute path and run hardware simulator with arg1
+	if [ `echo "$1" | sed -e "s/\(.\).*/\1/"` = / ]
+	then
+		arg1="$1"
+	else
+		arg1="${dir}/$1"
+	fi
+#	echo Running "$arg1"
+	java -classpath "${CLASSPATH}:bin/classes:BuiltIn:bin/lib/Hack.jar:bin/lib/HackGUI.jar:bin/lib/Simulators.jar:bin/lib/SimulatorsGUI.jar:bin/lib/Compilers.jar" HardwareSimulatorMain "$arg1"
+fi
diff --git a/tools/JackCompiler.bat b/tools/JackCompiler.bat
new file mode 100644
index 0000000..9399b94
--- /dev/null
+++ b/tools/JackCompiler.bat
@@ -0,0 +1,26 @@
+@echo off

+

+rem  $Id: JackCompiler.bat,v 1.2 2014/05/10 00:52:43 marka Exp $

+rem  mark.armbrust@pobox.com

+

+setlocal

+if not "%2"=="" goto :USAGE

+if "%~1"=="/?" (

+:USAGE

+  echo Usage:

+  echo     JackCompiler              Compiles all .jack files in the current

+  echo                               working directory.

+  echo     JackCompiler DIRECTORY    Compiles all .jack files in DIRECTORY.

+  echo     JackCompiler FILE.jack    Compiles FILE.jack to FILE.vm.

+  exit -b

+)

+if not "%~1"=="" (

+  set "_arg1=%~f1"

+) else (

+  set "_arg1=%CD%"

+)

+pushd "%~dp0"

+echo Compiling "%_arg1%"

+java -classpath "%CLASSPATH%;bin/classes;bin/lib/Hack.jar;bin/lib/Compilers.jar" ^

+  Hack.Compiler.JackCompiler "%_arg1%"

+popd

diff --git a/tools/JackCompiler.sh b/tools/JackCompiler.sh
new file mode 100644
index 0000000..699dfb8
--- /dev/null
+++ b/tools/JackCompiler.sh
@@ -0,0 +1,35 @@
+#!/usr/bin/env sh
+
+# $Id: JackCompiler.sh,v 1.1 2014/06/17 21:14:01 marka Exp $
+# mark.armbrust@pobox.com
+
+# User's CDPATH can interfere with cd in this script
+unset CDPATH
+# Get the true name of this script
+script="`test -L "$0" && readlink -n "$0" || echo "$0"`"
+dir="$PWD"
+cd "`dirname "$script"`"
+if [ \( $# -gt 1 \) -o \( "$1" = "-h" \) -o \( "$1" = "--help" \) ]
+then
+	echo "Usage:"
+	echo "    `basename "$0"`              Compiles all .jack files in the current"
+	echo "                                 working directory."
+	echo "    `basename "$0"` DIRECTORY    Compiles all .jack files in DIRECTORY."
+	echo "    `basename "$0"` FILE.jack    Compiles FILE.jack to FILE.vm."
+else
+	if [ $# -eq 0 ]
+	then
+		# Use current directory as arg1
+		arg1="$dir"
+	else
+		# Convert arg1 to an absolute path
+		if [ `echo "$1" | sed -e "s/\(.\).*/\1/"` = / ]
+		then
+			arg1="$1"
+		else
+			arg1="$dir/$1"
+		fi
+	fi
+	echo Compiling "$arg1"
+	java -classpath "${CLASSPATH}:bin/classes:bin/lib/Hack.jar:bin/lib/Compilers.jar" Hack.Compiler.JackCompiler "$arg1"
+fi
diff --git a/tools/OS/Array.vm b/tools/OS/Array.vm
new file mode 100644
index 0000000..aa4c9e8
--- /dev/null
+++ b/tools/OS/Array.vm
@@ -0,0 +1,23 @@
+function Array.new 0

+push argument 0

+push constant 0

+gt

+not

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 2

+call Sys.error 1

+pop temp 0

+label IF_FALSE0

+push argument 0

+call Memory.alloc 1

+return

+function Array.dispose 0

+push argument 0

+pop pointer 0

+push pointer 0

+call Memory.deAlloc 1

+pop temp 0

+push constant 0

+return

diff --git a/tools/OS/Keyboard.vm b/tools/OS/Keyboard.vm
new file mode 100644
index 0000000..a806c4e
--- /dev/null
+++ b/tools/OS/Keyboard.vm
@@ -0,0 +1,102 @@
+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

+call Output.printChar 1

+pop temp 0

+label WHILE_EXP0

+push local 1

+push constant 0

+eq

+push local 0

+push constant 0

+gt

+or

+not

+if-goto WHILE_END0

+call Keyboard.keyPressed 0

+pop local 0

+push local 0

+push constant 0

+gt

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push local 0

+pop local 1

+label IF_FALSE0

+goto WHILE_EXP0

+label WHILE_END0

+call String.backSpace 0

+call Output.printChar 1

+pop temp 0

+push local 1

+call Output.printChar 1

+pop temp 0

+push local 1

+return

+function Keyboard.readLine 5

+push constant 80

+call String.new 1

+pop local 3

+push argument 0

+call Output.printString 1

+pop temp 0

+call String.newLine 0

+pop local 1

+call String.backSpace 0

+pop local 2

+label WHILE_EXP0

+push local 4

+not

+not

+if-goto WHILE_END0

+call Keyboard.readChar 0

+pop local 0

+push local 0

+push local 1

+eq

+pop local 4

+push local 4

+not

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push local 0

+push local 2

+eq

+if-goto IF_TRUE1

+goto IF_FALSE1

+label IF_TRUE1

+push local 3

+call String.eraseLastChar 1

+pop temp 0

+goto IF_END1

+label IF_FALSE1

+push local 3

+push local 0

+call String.appendChar 2

+pop local 3

+label IF_END1

+label IF_FALSE0

+goto WHILE_EXP0

+label WHILE_END0

+push local 3

+return

+function Keyboard.readInt 2

+push argument 0

+call Keyboard.readLine 1

+pop local 0

+push local 0

+call String.intValue 1

+pop local 1

+push local 0

+call String.dispose 1

+pop temp 0

+push local 1

+return

diff --git a/tools/OS/Math.vm b/tools/OS/Math.vm
new file mode 100644
index 0000000..b660688
--- /dev/null
+++ b/tools/OS/Math.vm
@@ -0,0 +1,408 @@
+function Math.init 1

+push constant 16

+call Array.new 1

+pop static 1

+push constant 16

+call Array.new 1

+pop static 0

+push constant 0

+push static 0

+add

+push constant 1

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+label WHILE_EXP0

+push local 0

+push constant 15

+lt

+not

+if-goto WHILE_END0

+push local 0

+push constant 1

+add

+pop local 0

+push local 0

+push static 0

+add

+push local 0

+push constant 1

+sub

+push static 0

+add

+pop pointer 1

+push that 0

+push local 0

+push constant 1

+sub

+push static 0

+add

+pop pointer 1

+push that 0

+add

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+goto WHILE_EXP0

+label WHILE_END0

+push constant 0

+return

+function Math.abs 0

+push argument 0

+push constant 0

+lt

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push argument 0

+neg

+pop argument 0

+label IF_FALSE0

+push argument 0

+return

+function Math.multiply 5

+push argument 0

+push constant 0

+lt

+push argument 1

+push constant 0

+gt

+and

+push argument 0

+push constant 0

+gt

+push argument 1

+push constant 0

+lt

+and

+or

+pop local 4

+push argument 0

+call Math.abs 1

+pop argument 0

+push argument 1

+call Math.abs 1

+pop argument 1

+push argument 0

+push argument 1

+lt

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push argument 0

+pop local 1

+push argument 1

+pop argument 0

+push local 1

+pop argument 1

+label IF_FALSE0

+label WHILE_EXP0

+push local 2

+push constant 1

+sub

+push argument 1

+push constant 1

+sub

+lt

+not

+if-goto WHILE_END0

+push local 3

+push static 0

+add

+pop pointer 1

+push that 0

+push argument 1

+and

+push constant 0

+eq

+not

+if-goto IF_TRUE1

+goto IF_FALSE1

+label IF_TRUE1

+push local 0

+push argument 0

+add

+pop local 0

+push local 2

+push local 3

+push static 0

+add

+pop pointer 1

+push that 0

+add

+pop local 2

+label IF_FALSE1

+push argument 0

+push argument 0

+add

+pop argument 0

+push local 3

+push constant 1

+add

+pop local 3

+goto WHILE_EXP0

+label WHILE_END0

+push local 4

+if-goto IF_TRUE2

+goto IF_FALSE2

+label IF_TRUE2

+push local 0

+neg

+pop local 0

+label IF_FALSE2

+push local 0

+return

+function Math.divide 4

+push argument 1

+push constant 0

+eq

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 3

+call Sys.error 1

+pop temp 0

+label IF_FALSE0

+push argument 0

+push constant 0

+lt

+push argument 1

+push constant 0

+gt

+and

+push argument 0

+push constant 0

+gt

+push argument 1

+push constant 0

+lt

+and

+or

+pop local 2

+push constant 0

+push static 1

+add

+push argument 1

+call Math.abs 1

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push argument 0

+call Math.abs 1

+pop argument 0

+label WHILE_EXP0

+push local 0

+push constant 15

+lt

+push local 3

+not

+and

+not

+if-goto WHILE_END0

+push constant 32767

+push local 0

+push static 1

+add

+pop pointer 1

+push that 0

+push constant 1

+sub

+sub

+push local 0

+push static 1

+add

+pop pointer 1

+push that 0

+push constant 1

+sub

+lt

+pop local 3

+push local 3

+not

+if-goto IF_TRUE1

+goto IF_FALSE1

+label IF_TRUE1

+push local 0

+push constant 1

+add

+push static 1

+add

+push local 0

+push static 1

+add

+pop pointer 1

+push that 0

+push local 0

+push static 1

+add

+pop pointer 1

+push that 0

+add

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push local 0

+push constant 1

+add

+push static 1

+add

+pop pointer 1

+push that 0

+push constant 1

+sub

+push argument 0

+push constant 1

+sub

+gt

+pop local 3

+push local 3

+not

+if-goto IF_TRUE2

+goto IF_FALSE2

+label IF_TRUE2

+push local 0

+push constant 1

+add

+pop local 0

+label IF_FALSE2

+label IF_FALSE1

+goto WHILE_EXP0

+label WHILE_END0

+label WHILE_EXP1

+push local 0

+push constant 1

+neg

+gt

+not

+if-goto WHILE_END1

+push local 0

+push static 1

+add

+pop pointer 1

+push that 0

+push constant 1

+sub

+push argument 0

+push constant 1

+sub

+gt

+not

+if-goto IF_TRUE3

+goto IF_FALSE3

+label IF_TRUE3

+push local 1

+push local 0

+push static 0

+add

+pop pointer 1

+push that 0

+add

+pop local 1

+push argument 0

+push local 0

+push static 1

+add

+pop pointer 1

+push that 0

+sub

+pop argument 0

+label IF_FALSE3

+push local 0

+push constant 1

+sub

+pop local 0

+goto WHILE_EXP1

+label WHILE_END1

+push local 2

+if-goto IF_TRUE4

+goto IF_FALSE4

+label IF_TRUE4

+push local 1

+neg

+pop local 1

+label IF_FALSE4

+push local 1

+return

+function Math.sqrt 4

+push argument 0

+push constant 0

+lt

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 4

+call Sys.error 1

+pop temp 0

+label IF_FALSE0

+push constant 7

+pop local 0

+label WHILE_EXP0

+push local 0

+push constant 1

+neg

+gt

+not

+if-goto WHILE_END0

+push local 3

+push local 0

+push static 0

+add

+pop pointer 1

+push that 0

+add

+pop local 1

+push local 1

+push local 1

+call Math.multiply 2

+pop local 2

+push local 2

+push argument 0

+gt

+not

+push local 2

+push constant 0

+lt

+not

+and

+if-goto IF_TRUE1

+goto IF_FALSE1

+label IF_TRUE1

+push local 1

+pop local 3

+label IF_FALSE1

+push local 0

+push constant 1

+sub

+pop local 0

+goto WHILE_EXP0

+label WHILE_END0

+push local 3

+return

+function Math.max 0

+push argument 0

+push argument 1

+gt

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push argument 0

+pop argument 1

+label IF_FALSE0

+push argument 1

+return

+function Math.min 0

+push argument 0

+push argument 1

+lt

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push argument 0

+pop argument 1

+label IF_FALSE0

+push argument 1

+return

diff --git a/tools/OS/Memory.vm b/tools/OS/Memory.vm
new file mode 100644
index 0000000..5d42aad
--- /dev/null
+++ b/tools/OS/Memory.vm
@@ -0,0 +1,279 @@
+function Memory.init 0

+push constant 0

+pop static 0

+push constant 2048

+push static 0

+add

+push constant 14334

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push constant 2049

+push static 0

+add

+push constant 2050

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push constant 0

+return

+function Memory.peek 0

+push argument 0

+push static 0

+add

+pop pointer 1

+push that 0

+return

+function Memory.poke 0

+push argument 0

+push static 0

+add

+push argument 1

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push constant 0

+return

+function Memory.alloc 1

+push argument 0

+push constant 1

+lt

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 5

+call Sys.error 1

+pop temp 0

+label IF_FALSE0

+push constant 2048

+pop local 0

+label WHILE_EXP0

+push constant 0

+push local 0

+add

+pop pointer 1

+push that 0

+push argument 0

+lt

+not

+if-goto WHILE_END0

+push constant 1

+push local 0

+add

+pop pointer 1

+push that 0

+pop local 0

+goto WHILE_EXP0

+label WHILE_END0

+push local 0

+push argument 0

+add

+push constant 16379

+gt

+if-goto IF_TRUE1

+goto IF_FALSE1

+label IF_TRUE1

+push constant 6

+call Sys.error 1

+pop temp 0

+label IF_FALSE1

+push constant 0

+push local 0

+add

+pop pointer 1

+push that 0

+push argument 0

+push constant 2

+add

+gt

+if-goto IF_TRUE2

+goto IF_FALSE2

+label IF_TRUE2

+push argument 0

+push constant 2

+add

+push local 0

+add

+push constant 0

+push local 0

+add

+pop pointer 1

+push that 0

+push argument 0

+sub

+push constant 2

+sub

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push constant 1

+push local 0

+add

+pop pointer 1

+push that 0

+push local 0

+push constant 2

+add

+eq

+if-goto IF_TRUE3

+goto IF_FALSE3

+label IF_TRUE3

+push argument 0

+push constant 3

+add

+push local 0

+add

+push local 0

+push argument 0

+add

+push constant 4

+add

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+goto IF_END3

+label IF_FALSE3

+push argument 0

+push constant 3

+add

+push local 0

+add

+push constant 1

+push local 0

+add

+pop pointer 1

+push that 0

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+label IF_END3

+push constant 1

+push local 0

+add

+push local 0

+push argument 0

+add

+push constant 2

+add

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+label IF_FALSE2

+push constant 0

+push local 0

+add

+push constant 0

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push local 0

+push constant 2

+add

+return

+function Memory.deAlloc 2

+push argument 0

+push constant 2

+sub

+pop local 0

+push constant 1

+push local 0

+add

+pop pointer 1

+push that 0

+pop local 1

+push constant 0

+push local 1

+add

+pop pointer 1

+push that 0

+push constant 0

+eq

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 0

+push local 0

+add

+push constant 1

+push local 0

+add

+pop pointer 1

+push that 0

+push local 0

+sub

+push constant 2

+sub

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+goto IF_END0

+label IF_FALSE0

+push constant 0

+push local 0

+add

+push constant 1

+push local 0

+add

+pop pointer 1

+push that 0

+push local 0

+sub

+push constant 0

+push local 1

+add

+pop pointer 1

+push that 0

+add

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push constant 1

+push local 1

+add

+pop pointer 1

+push that 0

+push local 1

+push constant 2

+add

+eq

+if-goto IF_TRUE1

+goto IF_FALSE1

+label IF_TRUE1

+push constant 1

+push local 0

+add

+push local 0

+push constant 2

+add

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+goto IF_END1

+label IF_FALSE1

+push constant 1

+push local 0

+add

+push constant 1

+push local 1

+add

+pop pointer 1

+push that 0

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+label IF_END1

+label IF_END0

+push constant 0

+return

diff --git a/tools/OS/Output.vm b/tools/OS/Output.vm
new file mode 100644
index 0000000..b8addd7
--- /dev/null
+++ b/tools/OS/Output.vm
@@ -0,0 +1,1852 @@
+function Output.init 0

+push constant 16384

+pop static 4

+push constant 0

+not

+pop static 2

+push constant 32

+pop static 1

+push constant 0

+pop static 0

+push constant 6

+call String.new 1

+pop static 3

+call Output.initMap 0

+pop temp 0

+call Output.createShiftedMap 0

+pop temp 0

+push constant 0

+return

+function Output.initMap 0

+push constant 127

+call Array.new 1

+pop static 5

+push constant 0

+push constant 63

+push constant 63

+push constant 63

+push constant 63

+push constant 63

+push constant 63

+push constant 63

+push constant 63

+push constant 63

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 32

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 33

+push constant 12

+push constant 30

+push constant 30

+push constant 30

+push constant 12

+push constant 12

+push constant 0

+push constant 12

+push constant 12

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 34

+push constant 54

+push constant 54

+push constant 20

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 35

+push constant 0

+push constant 18

+push constant 18

+push constant 63

+push constant 18

+push constant 18

+push constant 63

+push constant 18

+push constant 18

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 36

+push constant 12

+push constant 30

+push constant 51

+push constant 3

+push constant 30

+push constant 48

+push constant 51

+push constant 30

+push constant 12

+push constant 12

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 37

+push constant 0

+push constant 0

+push constant 35

+push constant 51

+push constant 24

+push constant 12

+push constant 6

+push constant 51

+push constant 49

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 38

+push constant 12

+push constant 30

+push constant 30

+push constant 12

+push constant 54

+push constant 27

+push constant 27

+push constant 27

+push constant 54

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 39

+push constant 12

+push constant 12

+push constant 6

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 40

+push constant 24

+push constant 12

+push constant 6

+push constant 6

+push constant 6

+push constant 6

+push constant 6

+push constant 12

+push constant 24

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 41

+push constant 6

+push constant 12

+push constant 24

+push constant 24

+push constant 24

+push constant 24

+push constant 24

+push constant 12

+push constant 6

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 42

+push constant 0

+push constant 0

+push constant 0

+push constant 51

+push constant 30

+push constant 63

+push constant 30

+push constant 51

+push constant 0

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 43

+push constant 0

+push constant 0

+push constant 0

+push constant 12

+push constant 12

+push constant 63

+push constant 12

+push constant 12

+push constant 0

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 44

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 12

+push constant 12

+push constant 6

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 45

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 63

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 46

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 12

+push constant 12

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 47

+push constant 0

+push constant 0

+push constant 32

+push constant 48

+push constant 24

+push constant 12

+push constant 6

+push constant 3

+push constant 1

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 48

+push constant 12

+push constant 30

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 30

+push constant 12

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 49

+push constant 12

+push constant 14

+push constant 15

+push constant 12

+push constant 12

+push constant 12

+push constant 12

+push constant 12

+push constant 63

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 50

+push constant 30

+push constant 51

+push constant 48

+push constant 24

+push constant 12

+push constant 6

+push constant 3

+push constant 51

+push constant 63

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 51

+push constant 30

+push constant 51

+push constant 48

+push constant 48

+push constant 28

+push constant 48

+push constant 48

+push constant 51

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 52

+push constant 16

+push constant 24

+push constant 28

+push constant 26

+push constant 25

+push constant 63

+push constant 24

+push constant 24

+push constant 60

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 53

+push constant 63

+push constant 3

+push constant 3

+push constant 31

+push constant 48

+push constant 48

+push constant 48

+push constant 51

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 54

+push constant 28

+push constant 6

+push constant 3

+push constant 3

+push constant 31

+push constant 51

+push constant 51

+push constant 51

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 55

+push constant 63

+push constant 49

+push constant 48

+push constant 48

+push constant 24

+push constant 12

+push constant 12

+push constant 12

+push constant 12

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 56

+push constant 30

+push constant 51

+push constant 51

+push constant 51

+push constant 30

+push constant 51

+push constant 51

+push constant 51

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 57

+push constant 30

+push constant 51

+push constant 51

+push constant 51

+push constant 62

+push constant 48

+push constant 48

+push constant 24

+push constant 14

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 58

+push constant 0

+push constant 0

+push constant 12

+push constant 12

+push constant 0

+push constant 0

+push constant 12

+push constant 12

+push constant 0

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 59

+push constant 0

+push constant 0

+push constant 12

+push constant 12

+push constant 0

+push constant 0

+push constant 12

+push constant 12

+push constant 6

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 60

+push constant 0

+push constant 0

+push constant 24

+push constant 12

+push constant 6

+push constant 3

+push constant 6

+push constant 12

+push constant 24

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 61

+push constant 0

+push constant 0

+push constant 0

+push constant 63

+push constant 0

+push constant 0

+push constant 63

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 62

+push constant 0

+push constant 0

+push constant 3

+push constant 6

+push constant 12

+push constant 24

+push constant 12

+push constant 6

+push constant 3

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 64

+push constant 30

+push constant 51

+push constant 51

+push constant 59

+push constant 59

+push constant 59

+push constant 27

+push constant 3

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 63

+push constant 30

+push constant 51

+push constant 51

+push constant 24

+push constant 12

+push constant 12

+push constant 0

+push constant 12

+push constant 12

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 65

+push constant 12

+push constant 30

+push constant 51

+push constant 51

+push constant 63

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 66

+push constant 31

+push constant 51

+push constant 51

+push constant 51

+push constant 31

+push constant 51

+push constant 51

+push constant 51

+push constant 31

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 67

+push constant 28

+push constant 54

+push constant 35

+push constant 3

+push constant 3

+push constant 3

+push constant 35

+push constant 54

+push constant 28

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 68

+push constant 15

+push constant 27

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 27

+push constant 15

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 69

+push constant 63

+push constant 51

+push constant 35

+push constant 11

+push constant 15

+push constant 11

+push constant 35

+push constant 51

+push constant 63

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 70

+push constant 63

+push constant 51

+push constant 35

+push constant 11

+push constant 15

+push constant 11

+push constant 3

+push constant 3

+push constant 3

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 71

+push constant 28

+push constant 54

+push constant 35

+push constant 3

+push constant 59

+push constant 51

+push constant 51

+push constant 54

+push constant 44

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 72

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 63

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 73

+push constant 30

+push constant 12

+push constant 12

+push constant 12

+push constant 12

+push constant 12

+push constant 12

+push constant 12

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 74

+push constant 60

+push constant 24

+push constant 24

+push constant 24

+push constant 24

+push constant 24

+push constant 27

+push constant 27

+push constant 14

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 75

+push constant 51

+push constant 51

+push constant 51

+push constant 27

+push constant 15

+push constant 27

+push constant 51

+push constant 51

+push constant 51

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 76

+push constant 3

+push constant 3

+push constant 3

+push constant 3

+push constant 3

+push constant 3

+push constant 35

+push constant 51

+push constant 63

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 77

+push constant 33

+push constant 51

+push constant 63

+push constant 63

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 78

+push constant 51

+push constant 51

+push constant 55

+push constant 55

+push constant 63

+push constant 59

+push constant 59

+push constant 51

+push constant 51

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 79

+push constant 30

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 80

+push constant 31

+push constant 51

+push constant 51

+push constant 51

+push constant 31

+push constant 3

+push constant 3

+push constant 3

+push constant 3

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 81

+push constant 30

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 63

+push constant 59

+push constant 30

+push constant 48

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 82

+push constant 31

+push constant 51

+push constant 51

+push constant 51

+push constant 31

+push constant 27

+push constant 51

+push constant 51

+push constant 51

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 83

+push constant 30

+push constant 51

+push constant 51

+push constant 6

+push constant 28

+push constant 48

+push constant 51

+push constant 51

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 84

+push constant 63

+push constant 63

+push constant 45

+push constant 12

+push constant 12

+push constant 12

+push constant 12

+push constant 12

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 85

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 86

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 30

+push constant 30

+push constant 12

+push constant 12

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 87

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 63

+push constant 63

+push constant 63

+push constant 18

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 88

+push constant 51

+push constant 51

+push constant 30

+push constant 30

+push constant 12

+push constant 30

+push constant 30

+push constant 51

+push constant 51

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 89

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 30

+push constant 12

+push constant 12

+push constant 12

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 90

+push constant 63

+push constant 51

+push constant 49

+push constant 24

+push constant 12

+push constant 6

+push constant 35

+push constant 51

+push constant 63

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 91

+push constant 30

+push constant 6

+push constant 6

+push constant 6

+push constant 6

+push constant 6

+push constant 6

+push constant 6

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 92

+push constant 0

+push constant 0

+push constant 1

+push constant 3

+push constant 6

+push constant 12

+push constant 24

+push constant 48

+push constant 32

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 93

+push constant 30

+push constant 24

+push constant 24

+push constant 24

+push constant 24

+push constant 24

+push constant 24

+push constant 24

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 94

+push constant 8

+push constant 28

+push constant 54

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 95

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 63

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 96

+push constant 6

+push constant 12

+push constant 24

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 97

+push constant 0

+push constant 0

+push constant 0

+push constant 14

+push constant 24

+push constant 30

+push constant 27

+push constant 27

+push constant 54

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 98

+push constant 3

+push constant 3

+push constant 3

+push constant 15

+push constant 27

+push constant 51

+push constant 51

+push constant 51

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 99

+push constant 0

+push constant 0

+push constant 0

+push constant 30

+push constant 51

+push constant 3

+push constant 3

+push constant 51

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 100

+push constant 48

+push constant 48

+push constant 48

+push constant 60

+push constant 54

+push constant 51

+push constant 51

+push constant 51

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 101

+push constant 0

+push constant 0

+push constant 0

+push constant 30

+push constant 51

+push constant 63

+push constant 3

+push constant 51

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 102

+push constant 28

+push constant 54

+push constant 38

+push constant 6

+push constant 15

+push constant 6

+push constant 6

+push constant 6

+push constant 15

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 103

+push constant 0

+push constant 0

+push constant 30

+push constant 51

+push constant 51

+push constant 51

+push constant 62

+push constant 48

+push constant 51

+push constant 30

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 104

+push constant 3

+push constant 3

+push constant 3

+push constant 27

+push constant 55

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 105

+push constant 12

+push constant 12

+push constant 0

+push constant 14

+push constant 12

+push constant 12

+push constant 12

+push constant 12

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 106

+push constant 48

+push constant 48

+push constant 0

+push constant 56

+push constant 48

+push constant 48

+push constant 48

+push constant 48

+push constant 51

+push constant 30

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 107

+push constant 3

+push constant 3

+push constant 3

+push constant 51

+push constant 27

+push constant 15

+push constant 15

+push constant 27

+push constant 51

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 108

+push constant 14

+push constant 12

+push constant 12

+push constant 12

+push constant 12

+push constant 12

+push constant 12

+push constant 12

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 109

+push constant 0

+push constant 0

+push constant 0

+push constant 29

+push constant 63

+push constant 43

+push constant 43

+push constant 43

+push constant 43

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 110

+push constant 0

+push constant 0

+push constant 0

+push constant 29

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 111

+push constant 0

+push constant 0

+push constant 0

+push constant 30

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 112

+push constant 0

+push constant 0

+push constant 0

+push constant 30

+push constant 51

+push constant 51

+push constant 51

+push constant 31

+push constant 3

+push constant 3

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 113

+push constant 0

+push constant 0

+push constant 0

+push constant 30

+push constant 51

+push constant 51

+push constant 51

+push constant 62

+push constant 48

+push constant 48

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 114

+push constant 0

+push constant 0

+push constant 0

+push constant 29

+push constant 55

+push constant 51

+push constant 3

+push constant 3

+push constant 7

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 115

+push constant 0

+push constant 0

+push constant 0

+push constant 30

+push constant 51

+push constant 6

+push constant 24

+push constant 51

+push constant 30

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 116

+push constant 4

+push constant 6

+push constant 6

+push constant 15

+push constant 6

+push constant 6

+push constant 6

+push constant 54

+push constant 28

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 117

+push constant 0

+push constant 0

+push constant 0

+push constant 27

+push constant 27

+push constant 27

+push constant 27

+push constant 27

+push constant 54

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 118

+push constant 0

+push constant 0

+push constant 0

+push constant 51

+push constant 51

+push constant 51

+push constant 51

+push constant 30

+push constant 12

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 119

+push constant 0

+push constant 0

+push constant 0

+push constant 51

+push constant 51

+push constant 51

+push constant 63

+push constant 63

+push constant 18

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 120

+push constant 0

+push constant 0

+push constant 0

+push constant 51

+push constant 30

+push constant 12

+push constant 12

+push constant 30

+push constant 51

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 121

+push constant 0

+push constant 0

+push constant 0

+push constant 51

+push constant 51

+push constant 51

+push constant 62

+push constant 48

+push constant 24

+push constant 15

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 122

+push constant 0

+push constant 0

+push constant 0

+push constant 63

+push constant 27

+push constant 12

+push constant 6

+push constant 51

+push constant 63

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 123

+push constant 56

+push constant 12

+push constant 12

+push constant 12

+push constant 7

+push constant 12

+push constant 12

+push constant 12

+push constant 56

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 124

+push constant 12

+push constant 12

+push constant 12

+push constant 12

+push constant 12

+push constant 12

+push constant 12

+push constant 12

+push constant 12

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 125

+push constant 7

+push constant 12

+push constant 12

+push constant 12

+push constant 56

+push constant 12

+push constant 12

+push constant 12

+push constant 7

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 126

+push constant 38

+push constant 45

+push constant 25

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+push constant 0

+call Output.create 12

+pop temp 0

+push constant 0

+return

+function Output.create 1

+push constant 11

+call Array.new 1

+pop local 0

+push argument 0

+push static 5

+add

+push local 0

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push constant 0

+push local 0

+add

+push argument 1

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push constant 1

+push local 0

+add

+push argument 2

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push constant 2

+push local 0

+add

+push argument 3

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push constant 3

+push local 0

+add

+push argument 4

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push constant 4

+push local 0

+add

+push argument 5

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push constant 5

+push local 0

+add

+push argument 6

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push constant 6

+push local 0

+add

+push argument 7

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push constant 7

+push local 0

+add

+push argument 8

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push constant 8

+push local 0

+add

+push argument 9

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push constant 9

+push local 0

+add

+push argument 10

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push constant 10

+push local 0

+add

+push argument 11

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push constant 0

+return

+function Output.createShiftedMap 4

+push constant 127

+call Array.new 1

+pop static 6

+push constant 0

+pop local 2

+label WHILE_EXP0

+push local 2

+push constant 127

+lt

+not

+if-goto WHILE_END0

+push local 2

+push static 5

+add

+pop pointer 1

+push that 0

+pop local 0

+push constant 11

+call Array.new 1

+pop local 1

+push local 2

+push static 6

+add

+push local 1

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push constant 0

+pop local 3

+label WHILE_EXP1

+push local 3

+push constant 11

+lt

+not

+if-goto WHILE_END1

+push local 3

+push local 1

+add

+push local 3

+push local 0

+add

+pop pointer 1

+push that 0

+push constant 256

+call Math.multiply 2

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push local 3

+push constant 1

+add

+pop local 3

+goto WHILE_EXP1

+label WHILE_END1

+push local 2

+push constant 0

+eq

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 32

+pop local 2

+goto IF_END0

+label IF_FALSE0

+push local 2

+push constant 1

+add

+pop local 2

+label IF_END0

+goto WHILE_EXP0

+label WHILE_END0

+push constant 0

+return

+function Output.getMap 1

+push argument 0

+push constant 32

+lt

+push argument 0

+push constant 126

+gt

+or

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 0

+pop argument 0

+label IF_FALSE0

+push static 2

+if-goto IF_TRUE1

+goto IF_FALSE1

+label IF_TRUE1

+push argument 0

+push static 5

+add

+pop pointer 1

+push that 0

+pop local 0

+goto IF_END1

+label IF_FALSE1

+push argument 0

+push static 6

+add

+pop pointer 1

+push that 0

+pop local 0

+label IF_END1

+push local 0

+return

+function Output.drawChar 4

+push argument 0

+call Output.getMap 1

+pop local 2

+push static 1

+pop local 0

+label WHILE_EXP0

+push local 1

+push constant 11

+lt

+not

+if-goto WHILE_END0

+push static 2

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push local 0

+push static 4

+add

+pop pointer 1

+push that 0

+push constant 256

+neg

+and

+pop local 3

+goto IF_END0

+label IF_FALSE0

+push local 0

+push static 4

+add

+pop pointer 1

+push that 0

+push constant 255

+and

+pop local 3

+label IF_END0

+push local 0

+push static 4

+add

+push local 1

+push local 2

+add

+pop pointer 1

+push that 0

+push local 3

+or

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push local 0

+push constant 32

+add

+pop local 0

+push local 1

+push constant 1

+add

+pop local 1

+goto WHILE_EXP0

+label WHILE_END0

+push constant 0

+return

+function Output.moveCursor 0

+push argument 0

+push constant 0

+lt

+push argument 0

+push constant 22

+gt

+or

+push argument 1

+push constant 0

+lt

+or

+push argument 1

+push constant 63

+gt

+or

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 20

+call Sys.error 1

+pop temp 0

+label IF_FALSE0

+push argument 1

+push constant 2

+call Math.divide 2

+pop static 0

+push constant 32

+push argument 0

+push constant 352

+call Math.multiply 2

+add

+push static 0

+add

+pop static 1

+push argument 1

+push static 0

+push constant 2

+call Math.multiply 2

+eq

+pop static 2

+push constant 32

+call Output.drawChar 1

+pop temp 0

+push constant 0

+return

+function Output.printChar 0

+push argument 0

+call String.newLine 0

+eq

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+call Output.println 0

+pop temp 0

+goto IF_END0

+label IF_FALSE0

+push argument 0

+call String.backSpace 0

+eq

+if-goto IF_TRUE1

+goto IF_FALSE1

+label IF_TRUE1

+call Output.backSpace 0

+pop temp 0

+goto IF_END1

+label IF_FALSE1

+push argument 0

+call Output.drawChar 1

+pop temp 0

+push static 2

+not

+if-goto IF_TRUE2

+goto IF_FALSE2

+label IF_TRUE2

+push static 0

+push constant 1

+add

+pop static 0

+push static 1

+push constant 1

+add

+pop static 1

+label IF_FALSE2

+push static 0

+push constant 32

+eq

+if-goto IF_TRUE3

+goto IF_FALSE3

+label IF_TRUE3

+call Output.println 0

+pop temp 0

+goto IF_END3

+label IF_FALSE3

+push static 2

+not

+pop static 2

+label IF_END3

+label IF_END1

+label IF_END0

+push constant 0

+return

+function Output.printString 2

+push argument 0

+call String.length 1

+pop local 1

+label WHILE_EXP0

+push local 0

+push local 1

+lt

+not

+if-goto WHILE_END0

+push argument 0

+push local 0

+call String.charAt 2

+call Output.printChar 1

+pop temp 0

+push local 0

+push constant 1

+add

+pop local 0

+goto WHILE_EXP0

+label WHILE_END0

+push constant 0

+return

+function Output.printInt 0

+push static 3

+push argument 0

+call String.setInt 2

+pop temp 0

+push static 3

+call Output.printString 1

+pop temp 0

+push constant 0

+return

+function Output.println 0

+push static 1

+push constant 352

+add

+push static 0

+sub

+pop static 1

+push constant 0

+pop static 0

+push constant 0

+not

+pop static 2

+push static 1

+push constant 8128

+eq

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 32

+pop static 1

+label IF_FALSE0

+push constant 0

+return

+function Output.backSpace 0

+push static 2

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push static 0

+push constant 0

+gt

+if-goto IF_TRUE1

+goto IF_FALSE1

+label IF_TRUE1

+push static 0

+push constant 1

+sub

+pop static 0

+push static 1

+push constant 1

+sub

+pop static 1

+goto IF_END1

+label IF_FALSE1

+push constant 31

+pop static 0

+push static 1

+push constant 32

+eq

+if-goto IF_TRUE2

+goto IF_FALSE2

+label IF_TRUE2

+push constant 8128

+pop static 1

+label IF_FALSE2

+push static 1

+push constant 321

+sub

+pop static 1

+label IF_END1

+push constant 0

+pop static 2

+goto IF_END0

+label IF_FALSE0

+push constant 0

+not

+pop static 2

+label IF_END0

+push constant 32

+call Output.drawChar 1

+pop temp 0

+push constant 0

+return

diff --git a/tools/OS/Screen.vm b/tools/OS/Screen.vm
new file mode 100644
index 0000000..fccafb5
--- /dev/null
+++ b/tools/OS/Screen.vm
@@ -0,0 +1,806 @@
+function Screen.init 1

+push constant 16384

+pop static 1

+push constant 0

+not

+pop static 2

+push constant 17

+call Array.new 1

+pop static 0

+push constant 0

+push static 0

+add

+push constant 1

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+label WHILE_EXP0

+push local 0

+push constant 16

+lt

+not

+if-goto WHILE_END0

+push local 0

+push constant 1

+add

+pop local 0

+push local 0

+push static 0

+add

+push local 0

+push constant 1

+sub

+push static 0

+add

+pop pointer 1

+push that 0

+push local 0

+push constant 1

+sub

+push static 0

+add

+pop pointer 1

+push that 0

+add

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+goto WHILE_EXP0

+label WHILE_END0

+push constant 0

+return

+function Screen.clearScreen 1

+label WHILE_EXP0

+push local 0

+push constant 8192

+lt

+not

+if-goto WHILE_END0

+push local 0

+push static 1

+add

+push constant 0

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push local 0

+push constant 1

+add

+pop local 0

+goto WHILE_EXP0

+label WHILE_END0

+push constant 0

+return

+function Screen.updateLocation 0

+push static 2

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push argument 0

+push static 1

+add

+push argument 0

+push static 1

+add

+pop pointer 1

+push that 0

+push argument 1

+or

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+goto IF_END0

+label IF_FALSE0

+push argument 0

+push static 1

+add

+push argument 0

+push static 1

+add

+pop pointer 1

+push that 0

+push argument 1

+not

+and

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+label IF_END0

+push constant 0

+return

+function Screen.setColor 0

+push argument 0

+pop static 2

+push constant 0

+return

+function Screen.drawPixel 3

+push argument 0

+push constant 0

+lt

+push argument 0

+push constant 511

+gt

+or

+push argument 1

+push constant 0

+lt

+or

+push argument 1

+push constant 255

+gt

+or

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 7

+call Sys.error 1

+pop temp 0

+label IF_FALSE0

+push argument 0

+push constant 16

+call Math.divide 2

+pop local 0

+push argument 0

+push local 0

+push constant 16

+call Math.multiply 2

+sub

+pop local 1

+push argument 1

+push constant 32

+call Math.multiply 2

+push local 0

+add

+pop local 2

+push local 2

+push local 1

+push static 0

+add

+pop pointer 1

+push that 0

+call Screen.updateLocation 2

+pop temp 0

+push constant 0

+return

+function Screen.drawConditional 0

+push argument 2

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push argument 1

+push argument 0

+call Screen.drawPixel 2

+pop temp 0

+goto IF_END0

+label IF_FALSE0

+push argument 0

+push argument 1

+call Screen.drawPixel 2

+pop temp 0

+label IF_END0

+push constant 0

+return

+function Screen.drawLine 11

+push argument 0

+push constant 0

+lt

+push argument 2

+push constant 511

+gt

+or

+push argument 1

+push constant 0

+lt

+or

+push argument 3

+push constant 255

+gt

+or

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 8

+call Sys.error 1

+pop temp 0

+label IF_FALSE0

+push argument 2

+push argument 0

+sub

+call Math.abs 1

+pop local 3

+push argument 3

+push argument 1

+sub

+call Math.abs 1

+pop local 2

+push local 3

+push local 2

+lt

+pop local 6

+push local 6

+push argument 3

+push argument 1

+lt

+and

+push local 6

+not

+push argument 2

+push argument 0

+lt

+and

+or

+if-goto IF_TRUE1

+goto IF_FALSE1

+label IF_TRUE1

+push argument 0

+pop local 4

+push argument 2

+pop argument 0

+push local 4

+pop argument 2

+push argument 1

+pop local 4

+push argument 3

+pop argument 1

+push local 4

+pop argument 3

+label IF_FALSE1

+push local 6

+if-goto IF_TRUE2

+goto IF_FALSE2

+label IF_TRUE2

+push local 3

+pop local 4

+push local 2

+pop local 3

+push local 4

+pop local 2

+push argument 1

+pop local 1

+push argument 0

+pop local 0

+push argument 3

+pop local 8

+push argument 0

+push argument 2

+gt

+pop local 7

+goto IF_END2

+label IF_FALSE2

+push argument 0

+pop local 1

+push argument 1

+pop local 0

+push argument 2

+pop local 8

+push argument 1

+push argument 3

+gt

+pop local 7

+label IF_END2

+push constant 2

+push local 2

+call Math.multiply 2

+push local 3

+sub

+pop local 5

+push constant 2

+push local 2

+call Math.multiply 2

+pop local 9

+push constant 2

+push local 2

+push local 3

+sub

+call Math.multiply 2

+pop local 10

+push local 1

+push local 0

+push local 6

+call Screen.drawConditional 3

+pop temp 0

+label WHILE_EXP0

+push local 1

+push local 8

+lt

+not

+if-goto WHILE_END0

+push local 5

+push constant 0

+lt

+if-goto IF_TRUE3

+goto IF_FALSE3

+label IF_TRUE3

+push local 5

+push local 9

+add

+pop local 5

+goto IF_END3

+label IF_FALSE3

+push local 5

+push local 10

+add

+pop local 5

+push local 7

+if-goto IF_TRUE4

+goto IF_FALSE4

+label IF_TRUE4

+push local 0

+push constant 1

+sub

+pop local 0

+goto IF_END4

+label IF_FALSE4

+push local 0

+push constant 1

+add

+pop local 0

+label IF_END4

+label IF_END3

+push local 1

+push constant 1

+add

+pop local 1

+push local 1

+push local 0

+push local 6

+call Screen.drawConditional 3

+pop temp 0

+goto WHILE_EXP0

+label WHILE_END0

+push constant 0

+return

+function Screen.drawRectangle 9

+push argument 0

+push argument 2

+gt

+push argument 1

+push argument 3

+gt

+or

+push argument 0

+push constant 0

+lt

+or

+push argument 2

+push constant 511

+gt

+or

+push argument 1

+push constant 0

+lt

+or

+push argument 3

+push constant 255

+gt

+or

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 9

+call Sys.error 1

+pop temp 0

+label IF_FALSE0

+push argument 0

+push constant 16

+call Math.divide 2

+pop local 3

+push argument 0

+push local 3

+push constant 16

+call Math.multiply 2

+sub

+pop local 7

+push argument 2

+push constant 16

+call Math.divide 2

+pop local 4

+push argument 2

+push local 4

+push constant 16

+call Math.multiply 2

+sub

+pop local 8

+push local 7

+push static 0

+add

+pop pointer 1

+push that 0

+push constant 1

+sub

+not

+pop local 6

+push local 8

+push constant 1

+add

+push static 0

+add

+pop pointer 1

+push that 0

+push constant 1

+sub

+pop local 5

+push argument 1

+push constant 32

+call Math.multiply 2

+push local 3

+add

+pop local 0

+push local 4

+push local 3

+sub

+pop local 2

+label WHILE_EXP0

+push argument 1

+push argument 3

+gt

+not

+not

+if-goto WHILE_END0

+push local 0

+push local 2

+add

+pop local 1

+push local 2

+push constant 0

+eq

+if-goto IF_TRUE1

+goto IF_FALSE1

+label IF_TRUE1

+push local 0

+push local 5

+push local 6

+and

+call Screen.updateLocation 2

+pop temp 0

+goto IF_END1

+label IF_FALSE1

+push local 0

+push local 6

+call Screen.updateLocation 2

+pop temp 0

+push local 0

+push constant 1

+add

+pop local 0

+label WHILE_EXP1

+push local 0

+push local 1

+lt

+not

+if-goto WHILE_END1

+push local 0

+push constant 1

+neg

+call Screen.updateLocation 2

+pop temp 0

+push local 0

+push constant 1

+add

+pop local 0

+goto WHILE_EXP1

+label WHILE_END1

+push local 1

+push local 5

+call Screen.updateLocation 2

+pop temp 0

+label IF_END1

+push argument 1

+push constant 1

+add

+pop argument 1

+push local 1

+push constant 32

+add

+push local 2

+sub

+pop local 0

+goto WHILE_EXP0

+label WHILE_END0

+push constant 0

+return

+function Screen.drawHorizontal 11

+push argument 1

+push argument 2

+call Math.min 2

+pop local 7

+push argument 1

+push argument 2

+call Math.max 2

+pop local 8

+push argument 0

+push constant 1

+neg

+gt

+push argument 0

+push constant 256

+lt

+and

+push local 7

+push constant 512

+lt

+and

+push local 8

+push constant 1

+neg

+gt

+and

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push local 7

+push constant 0

+call Math.max 2

+pop local 7

+push local 8

+push constant 511

+call Math.min 2

+pop local 8

+push local 7

+push constant 16

+call Math.divide 2

+pop local 1

+push local 7

+push local 1

+push constant 16

+call Math.multiply 2

+sub

+pop local 9

+push local 8

+push constant 16

+call Math.divide 2

+pop local 2

+push local 8

+push local 2

+push constant 16

+call Math.multiply 2

+sub

+pop local 10

+push local 9

+push static 0

+add

+pop pointer 1

+push that 0

+push constant 1

+sub

+not

+pop local 5

+push local 10

+push constant 1

+add

+push static 0

+add

+pop pointer 1

+push that 0

+push constant 1

+sub

+pop local 4

+push argument 0

+push constant 32

+call Math.multiply 2

+push local 1

+add

+pop local 0

+push local 2

+push local 1

+sub

+pop local 6

+push local 0

+push local 6

+add

+pop local 3

+push local 6

+push constant 0

+eq

+if-goto IF_TRUE1

+goto IF_FALSE1

+label IF_TRUE1

+push local 0

+push local 4

+push local 5

+and

+call Screen.updateLocation 2

+pop temp 0

+goto IF_END1

+label IF_FALSE1

+push local 0

+push local 5

+call Screen.updateLocation 2

+pop temp 0

+push local 0

+push constant 1

+add

+pop local 0

+label WHILE_EXP0

+push local 0

+push local 3

+lt

+not

+if-goto WHILE_END0

+push local 0

+push constant 1

+neg

+call Screen.updateLocation 2

+pop temp 0

+push local 0

+push constant 1

+add

+pop local 0

+goto WHILE_EXP0

+label WHILE_END0

+push local 3

+push local 4

+call Screen.updateLocation 2

+pop temp 0

+label IF_END1

+label IF_FALSE0

+push constant 0

+return

+function Screen.drawSymetric 0

+push argument 1

+push argument 3

+sub

+push argument 0

+push argument 2

+add

+push argument 0

+push argument 2

+sub

+call Screen.drawHorizontal 3

+pop temp 0

+push argument 1

+push argument 3

+add

+push argument 0

+push argument 2

+add

+push argument 0

+push argument 2

+sub

+call Screen.drawHorizontal 3

+pop temp 0

+push argument 1

+push argument 2

+sub

+push argument 0

+push argument 3

+sub

+push argument 0

+push argument 3

+add

+call Screen.drawHorizontal 3

+pop temp 0

+push argument 1

+push argument 2

+add

+push argument 0

+push argument 3

+sub

+push argument 0

+push argument 3

+add

+call Screen.drawHorizontal 3

+pop temp 0

+push constant 0

+return

+function Screen.drawCircle 3

+push argument 0

+push constant 0

+lt

+push argument 0

+push constant 511

+gt

+or

+push argument 1

+push constant 0

+lt

+or

+push argument 1

+push constant 255

+gt

+or

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 12

+call Sys.error 1

+pop temp 0

+label IF_FALSE0

+push argument 0

+push argument 2

+sub

+push constant 0

+lt

+push argument 0

+push argument 2

+add

+push constant 511

+gt

+or

+push argument 1

+push argument 2

+sub

+push constant 0

+lt

+or

+push argument 1

+push argument 2

+add

+push constant 255

+gt

+or

+if-goto IF_TRUE1

+goto IF_FALSE1

+label IF_TRUE1

+push constant 13

+call Sys.error 1

+pop temp 0

+label IF_FALSE1

+push argument 2

+pop local 1

+push constant 1

+push argument 2

+sub

+pop local 2

+push argument 0

+push argument 1

+push local 0

+push local 1

+call Screen.drawSymetric 4

+pop temp 0

+label WHILE_EXP0

+push local 1

+push local 0

+gt

+not

+if-goto WHILE_END0

+push local 2

+push constant 0

+lt

+if-goto IF_TRUE2

+goto IF_FALSE2

+label IF_TRUE2

+push local 2

+push constant 2

+push local 0

+call Math.multiply 2

+add

+push constant 3

+add

+pop local 2

+goto IF_END2

+label IF_FALSE2

+push local 2

+push constant 2

+push local 0

+push local 1

+sub

+call Math.multiply 2

+add

+push constant 5

+add

+pop local 2

+push local 1

+push constant 1

+sub

+pop local 1

+label IF_END2

+push local 0

+push constant 1

+add

+pop local 0

+push argument 0

+push argument 1

+push local 0

+push local 1

+call Screen.drawSymetric 4

+pop temp 0

+goto WHILE_EXP0

+label WHILE_END0

+push constant 0

+return

diff --git a/tools/OS/String.vm b/tools/OS/String.vm
new file mode 100644
index 0000000..9b7577e
--- /dev/null
+++ b/tools/OS/String.vm
@@ -0,0 +1,393 @@
+function String.new 0

+push constant 3

+call Memory.alloc 1

+pop pointer 0

+push argument 0

+push constant 0

+lt

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 14

+call Sys.error 1

+pop temp 0

+label IF_FALSE0

+push argument 0

+push constant 0

+gt

+if-goto IF_TRUE1

+goto IF_FALSE1

+label IF_TRUE1

+push argument 0

+call Array.new 1

+pop this 1

+label IF_FALSE1

+push argument 0

+pop this 0

+push constant 0

+pop this 2

+push pointer 0

+return

+function String.dispose 0

+push argument 0

+pop pointer 0

+push this 0

+push constant 0

+gt

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push this 1

+call Array.dispose 1

+pop temp 0

+label IF_FALSE0

+push pointer 0

+call Memory.deAlloc 1

+pop temp 0

+push constant 0

+return

+function String.length 0

+push argument 0

+pop pointer 0

+push this 2

+return

+function String.charAt 0

+push argument 0

+pop pointer 0

+push argument 1

+push constant 0

+lt

+push argument 1

+push this 2

+gt

+or

+push argument 1

+push this 2

+eq

+or

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 15

+call Sys.error 1

+pop temp 0

+label IF_FALSE0

+push argument 1

+push this 1

+add

+pop pointer 1

+push that 0

+return

+function String.setCharAt 0

+push argument 0

+pop pointer 0

+push argument 1

+push constant 0

+lt

+push argument 1

+push this 2

+gt

+or

+push argument 1

+push this 2

+eq

+or

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 16

+call Sys.error 1

+pop temp 0

+label IF_FALSE0

+push argument 1

+push this 1

+add

+push argument 2

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push constant 0

+return

+function String.appendChar 0

+push argument 0

+pop pointer 0

+push this 2

+push this 0

+eq

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 17

+call Sys.error 1

+pop temp 0

+label IF_FALSE0

+push this 2

+push this 1

+add

+push argument 1

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push this 2

+push constant 1

+add

+pop this 2

+push pointer 0

+return

+function String.eraseLastChar 0

+push argument 0

+pop pointer 0

+push this 2

+push constant 0

+eq

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 18

+call Sys.error 1

+pop temp 0

+label IF_FALSE0

+push this 2

+push constant 1

+sub

+pop this 2

+push constant 0

+return

+function String.intValue 5

+push argument 0

+pop pointer 0

+push this 2

+push constant 0

+eq

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 0

+return

+label IF_FALSE0

+push constant 0

+not

+pop local 3

+push constant 0

+push this 1

+add

+pop pointer 1

+push that 0

+push constant 45

+eq

+if-goto IF_TRUE1

+goto IF_FALSE1

+label IF_TRUE1

+push constant 0

+not

+pop local 4

+push constant 1

+pop local 0

+label IF_FALSE1

+label WHILE_EXP0

+push local 0

+push this 2

+lt

+push local 3

+and

+not

+if-goto WHILE_END0

+push local 0

+push this 1

+add

+pop pointer 1

+push that 0

+push constant 48

+sub

+pop local 2

+push local 2

+push constant 0

+lt

+push local 2

+push constant 9

+gt

+or

+not

+pop local 3

+push local 3

+if-goto IF_TRUE2

+goto IF_FALSE2

+label IF_TRUE2

+push local 1

+push constant 10

+call Math.multiply 2

+push local 2

+add

+pop local 1

+push local 0

+push constant 1

+add

+pop local 0

+label IF_FALSE2

+goto WHILE_EXP0

+label WHILE_END0

+push local 4

+if-goto IF_TRUE3

+goto IF_FALSE3

+label IF_TRUE3

+push local 1

+neg

+pop local 1

+label IF_FALSE3

+push local 1

+return

+function String.setInt 4

+push argument 0

+pop pointer 0

+push this 0

+push constant 0

+eq

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 19

+call Sys.error 1

+pop temp 0

+label IF_FALSE0

+push constant 6

+call Array.new 1

+pop local 2

+push argument 1

+push constant 0

+lt

+if-goto IF_TRUE1

+goto IF_FALSE1

+label IF_TRUE1

+push constant 0

+not

+pop local 3

+push argument 1

+neg

+pop argument 1

+label IF_FALSE1

+push argument 1

+pop local 1

+label WHILE_EXP0

+push local 1

+push constant 0

+gt

+not

+if-goto WHILE_END0

+push argument 1

+push constant 10

+call Math.divide 2

+pop local 1

+push local 0

+push local 2

+add

+push constant 48

+push argument 1

+push local 1

+push constant 10

+call Math.multiply 2

+sub

+add

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push local 0

+push constant 1

+add

+pop local 0

+push local 1

+pop argument 1

+goto WHILE_EXP0

+label WHILE_END0

+push local 3

+if-goto IF_TRUE2

+goto IF_FALSE2

+label IF_TRUE2

+push local 0

+push local 2

+add

+push constant 45

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push local 0

+push constant 1

+add

+pop local 0

+label IF_FALSE2

+push this 0

+push local 0

+lt

+if-goto IF_TRUE3

+goto IF_FALSE3

+label IF_TRUE3

+push constant 19

+call Sys.error 1

+pop temp 0

+label IF_FALSE3

+push local 0

+push constant 0

+eq

+if-goto IF_TRUE4

+goto IF_FALSE4

+label IF_TRUE4

+push constant 0

+push this 1

+add

+push constant 48

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push constant 1

+pop this 2

+goto IF_END4

+label IF_FALSE4

+push constant 0

+pop this 2

+label WHILE_EXP1

+push this 2

+push local 0

+lt

+not

+if-goto WHILE_END1

+push this 2

+push this 1

+add

+push local 0

+push this 2

+push constant 1

+add

+sub

+push local 2

+add

+pop pointer 1

+push that 0

+pop temp 0

+pop pointer 1

+push temp 0

+pop that 0

+push this 2

+push constant 1

+add

+pop this 2

+goto WHILE_EXP1

+label WHILE_END1

+label IF_END4

+push local 2

+call Array.dispose 1

+pop temp 0

+push constant 0

+return

+function String.newLine 0

+push constant 128

+return

+function String.backSpace 0

+push constant 129

+return

+function String.doubleQuote 0

+push constant 34

+return

diff --git a/tools/OS/Sys.vm b/tools/OS/Sys.vm
new file mode 100644
index 0000000..3ed7c0c
--- /dev/null
+++ b/tools/OS/Sys.vm
@@ -0,0 +1,84 @@
+function Sys.init 0

+call Memory.init 0

+pop temp 0

+call Math.init 0

+pop temp 0

+call Screen.init 0

+pop temp 0

+call Output.init 0

+pop temp 0

+call Keyboard.init 0

+pop temp 0

+call Main.main 0

+pop temp 0

+call Sys.halt 0

+pop temp 0

+push constant 0

+return

+function Sys.halt 0

+label WHILE_EXP0

+push constant 0

+not

+not

+if-goto WHILE_END0

+goto WHILE_EXP0

+label WHILE_END0

+push constant 0

+return

+function Sys.wait 1

+push argument 0

+push constant 0

+lt

+if-goto IF_TRUE0

+goto IF_FALSE0

+label IF_TRUE0

+push constant 1

+call Sys.error 1

+pop temp 0

+label IF_FALSE0

+label WHILE_EXP0

+push argument 0

+push constant 0

+gt

+not

+if-goto WHILE_END0

+push constant 50

+pop local 0

+label WHILE_EXP1

+push local 0

+push constant 0

+gt

+not

+if-goto WHILE_END1

+push local 0

+push constant 1

+sub

+pop local 0

+goto WHILE_EXP1

+label WHILE_END1

+push argument 0

+push constant 1

+sub

+pop argument 0

+goto WHILE_EXP0

+label WHILE_END0

+push constant 0

+return

+function Sys.error 0

+push constant 3

+call String.new 1

+push constant 69

+call String.appendChar 2

+push constant 82

+call String.appendChar 2

+push constant 82

+call String.appendChar 2

+call Output.printString 1

+pop temp 0

+push argument 0

+call Output.printInt 1

+pop temp 0

+call Sys.halt 0

+pop temp 0

+push constant 0

+return

diff --git a/tools/TextComparer.bat b/tools/TextComparer.bat
new file mode 100644
index 0000000..a036d00
--- /dev/null
+++ b/tools/TextComparer.bat
@@ -0,0 +1,29 @@
+@echo off

+

+rem  $Id: TextComparer.bat,v 1.2 2014/05/10 00:52:43 marka Exp $

+rem  mark.armbrust@pobox.com

+

+setlocal

+if not "%3"=="" goto :USAGE

+if "%1"=="/?" goto :USAGE

+if not "%~1"=="" (

+  set "_arg1=%~f1"

+)

+if not "%~2"=="" (

+  set "_arg2=%~f2"

+)

+pushd "%~dp0"

+if  NOT "%~1"=="" (

+  if  NOT "%~2"=="" (

+  java -classpath "%CLASSPATH%;bin/classes" TextComparer ^

+    "%_arg1%" "%_arg2%"

+  popd

+  exit /B

+  )

+)

+:USAGE

+echo Usage:

+echo     TextComparer FILE1 FILE2    Compares FILE1 and FILE2.  The success

+echo                                 message or the first miscompared line

+echo                                 is printed to the command console.

+popd

diff --git a/tools/TextComparer.sh b/tools/TextComparer.sh
new file mode 100644
index 0000000..c8b08af
--- /dev/null
+++ b/tools/TextComparer.sh
@@ -0,0 +1,36 @@
+#!/usr/bin/env sh
+
+# $Id: TextComparer.sh,v 1.1 2014/06/17 21:14:01 marka Exp $
+# mark.armbrust@pobox.com
+
+# User's CDPATH can interfere with cd in this script
+unset CDPATH
+# Get the true name of this script
+script="`test -L "$0" && readlink -n "$0" || echo "$0"`"
+dir="$PWD"
+cd "`dirname "$script"`"
+if [ \( $# -ne 2 \) -o \( "$1" = "-h" \) -o \( "$1" = "--help" \) ]
+then
+	# print usage
+	echo "Usage:"
+	echo "    `basename "$0"` FILE1 FILE2    Compares FILE1 and FILE2.  The success"
+	echo "                                   message or the first miscompared line"
+	echo "                                   is printed to the command console."
+else
+	# Convert arg1 to an absolute path
+	if [ `echo "$1" | sed -e "s/\(.\).*/\1/"` = / ]
+	then
+		arg1="$1"
+	else
+		arg1="$dir/$1"
+	fi
+	# Convert arg2 to an absolute path
+	if [ `echo "$2" | sed -e "s/\(.\).*/\1/"` = / ]
+	then
+		arg2="$2"
+	else
+		arg2="$dir/$2"
+	fi
+#	echo Comparing "$arg1" "$arg2"
+	java -classpath "${CLASSPATH}:bin/classes" TextComparer "$arg1" "$arg2"
+fi
diff --git a/tools/VMEmulator.bat b/tools/VMEmulator.bat
new file mode 100644
index 0000000..1b15b72
--- /dev/null
+++ b/tools/VMEmulator.bat
@@ -0,0 +1,29 @@
+@echo off

+

+rem  $Id: VMEmulator.bat,v 1.3 2014/05/10 00:51:55 marka Exp $

+rem  mark.armbrust@pobox.com

+

+setlocal 

+if not "%2"=="" goto :USAGE

+if "%~1"=="/?" (

+:USAGE

+  echo Usage:

+  echo     VMEmulator             Starts the VM Emulator in interactive mode.

+  echo     VMEmulator FILE.tst    Starts the VM Emulator and runs the FILE.tst test

+  echo                            script.  The success/failure message is

+  echo                            printed to the command console.

+  exit -b

+)

+if not "%~1"=="" (

+  set "_arg1=%~f1"

+)

+pushd "%~dp0"

+if "%~1"=="" (

+  start javaw -classpath "%CLASSPATH%;.;bin/classes;bin/lib/Hack.jar;bin/lib/HackGUI.jar;bin/lib/Simulators.jar;bin/lib/SimulatorsGUI.jar;bin/lib/Compilers.jar" ^

+    VMEmulatorMain

+) else (

+rem  echo Running "%_arg1%"

+  java -classpath "%CLASSPATH%;.;bin/classes;bin/lib/Hack.jar;bin/lib/HackGUI.jar;bin/lib/Simulators.jar;bin/lib/SimulatorsGUI.jar;bin/lib/Compilers.jar" ^

+    VMEmulatorMain "%_arg1%"

+)

+popd

diff --git a/tools/VMEmulator.sh b/tools/VMEmulator.sh
new file mode 100644
index 0000000..48f4f0f
--- /dev/null
+++ b/tools/VMEmulator.sh
@@ -0,0 +1,33 @@
+#!/usr/bin/env sh
+
+# $Id: VMEmulator.sh,v 1.1 2014/06/17 21:14:01 marka Exp $
+# mark.armbrust@pobox.com
+
+# User's CDPATH can interfere with cd in this script
+unset CDPATH
+# Get the true name of this script
+script="`test -L "$0" && readlink -n "$0" || echo "$0"`"
+dir="$PWD"
+cd "`dirname "$script"`"
+if [ \( $# -gt 1 \) -o \( "$1" = "-h" \) -o \( "$1" = "--help" \) ]
+then
+	echo "Usage:"
+	echo "    `basename "$0"`             Starts the VM Emulator in interactive mode."
+	echo "    `basename "$0"` FILE.tst    Starts the VM Emulator and runs the FILE.tst test"
+	echo "                              script.  The success/failure message is"
+	echo "                              printed to the command console."	
+elif [ $# -eq 0 ]
+then
+	# Run VM emulator in interactive mode
+	java -classpath "${CLASSPATH}:bin/classes:bin/lib/Hack.jar:bin/lib/HackGUI.jar:bin/lib/Simulators.jar:bin/lib/SimulatorsGUI.jar:bin/lib/Compilers.jar" VMEmulatorMain &
+else
+	# Convert arg1 to an absolute path and run VM emulator with arg1
+	if [ `echo "$1" | sed -e "s/\(.\).*/\1/"` = / ]
+	then
+		arg1="$1"
+	else
+		arg1="${dir}/$1"
+	fi
+#	echo Running "$arg1"
+	java -classpath "${CLASSPATH}:bin/classes:bin/lib/Hack.jar:bin/lib/HackGUI.jar:bin/lib/Simulators.jar:bin/lib/SimulatorsGUI.jar:bin/lib/Compilers.jar" VMEmulatorMain "$arg1"
+fi
diff --git a/tools/bin/classes/CPUEmulatorMain.class b/tools/bin/classes/CPUEmulatorMain.class
new file mode 100644
index 0000000..2c5b68f
--- /dev/null
+++ b/tools/bin/classes/CPUEmulatorMain.class
diff --git a/tools/bin/classes/HackAssemblerMain.class b/tools/bin/classes/HackAssemblerMain.class
new file mode 100644
index 0000000..b912391
--- /dev/null
+++ b/tools/bin/classes/HackAssemblerMain.class
diff --git a/tools/bin/classes/HardwareSimulatorMain.class b/tools/bin/classes/HardwareSimulatorMain.class
new file mode 100644
index 0000000..5786077
--- /dev/null
+++ b/tools/bin/classes/HardwareSimulatorMain.class
diff --git a/tools/bin/classes/TextComparer.class b/tools/bin/classes/TextComparer.class
new file mode 100644
index 0000000..f2e076e
--- /dev/null
+++ b/tools/bin/classes/TextComparer.class
diff --git a/tools/bin/classes/VMEmulatorMain.class b/tools/bin/classes/VMEmulatorMain.class
new file mode 100644
index 0000000..aa6b7ff
--- /dev/null
+++ b/tools/bin/classes/VMEmulatorMain.class
diff --git a/tools/bin/help/asmAbout.html b/tools/bin/help/asmAbout.html
new file mode 100644
index 0000000..919e539
--- /dev/null
+++ b/tools/bin/help/asmAbout.html
@@ -0,0 +1,96 @@
+<html xmlns:o="urn:schemas-microsoft-com:office:office"

+xmlns:w="urn:schemas-microsoft-com:office:word"

+xmlns="http://www.w3.org/TR/REC-html40">

+

+<head>

+<meta http-equiv=Content-Type content="text/html; charset=windows-1252">

+<meta name=ProgId content=Word.Document>

+<meta name=Generator content="Microsoft Word 10">

+<meta name=Originator content="Microsoft Word 10">

+<link rel=File-List href="asmAbout_files/filelist.xml">

+<title>About Assembler</title>

+<!--[if gte mso 9]><xml>

+ <w:WordDocument>

+  <w:GrammarState>Clean</w:GrammarState>

+  <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel>

+ </w:WordDocument>

+</xml><![endif]-->

+<style>

+<!--

+ /* Style Definitions */

+ p.MsoNormal, li.MsoNormal, div.MsoNormal

+	{mso-style-parent:"";

+	margin:0in;

+	margin-bottom:.0001pt;

+	mso-pagination:widow-orphan;

+	font-size:12.0pt;

+	font-family:"Times New Roman";

+	mso-fareast-font-family:"Times New Roman";}

+p.MsoBodyText, li.MsoBodyText, div.MsoBodyText

+	{margin:0in;

+	margin-bottom:.0001pt;

+	mso-pagination:widow-orphan;

+	font-size:13.0pt;

+	font-family:"Times New Roman";

+	mso-fareast-font-family:"Times New Roman";}

+@page Section1

+	{size:8.5in 11.0in;

+	margin:1.0in 1.25in 1.0in 1.25in;

+	mso-header-margin:.5in;

+	mso-footer-margin:.5in;

+	mso-paper-source:0;}

+div.Section1

+	{page:Section1;}

+-->

+</style>

+<!--[if gte mso 10]>

+<style>

+ /* Style Definitions */

+ table.MsoNormalTable

+	{mso-style-name:"Table Normal";

+	mso-tstyle-rowband-size:0;

+	mso-tstyle-colband-size:0;

+	mso-style-noshow:yes;

+	mso-style-parent:"";

+	mso-padding-alt:0in 5.4pt 0in 5.4pt;

+	mso-para-margin:0in;

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+</style>

+<![endif]-->

+</head>

+

+<body lang=EN-US style='tab-interval:.5in'>

+

+<div class=Section1>

+

+<p class=MsoBodyText align=center style='text-align:center'><b><span

+style='font-size:12.0pt'>Assembler, Version 2.5</span></b></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>&nbsp;</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'>This program is

+part of www.nand2tetris.org<o:p></o:p></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span class=GramE>and</span>

+the book &quot;The Elements of Computing Systems&quot;<o:p></o:p></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span class=GramE>by</span>

+Nisan and Schocken, MIT Press.</p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>&nbsp;</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>Software Architects: Yaron Ukrainitz and Yannai A. Gonczarowski</span></p>

+

+<p class=MsoNormal>&nbsp;</p>

+

+</div>

+

+</body>

+

+</html>

diff --git a/tools/bin/help/asmUsage.html b/tools/bin/help/asmUsage.html
new file mode 100644
index 0000000..1e18db2
--- /dev/null
+++ b/tools/bin/help/asmUsage.html
@@ -0,0 +1,115 @@
+<html xmlns:o="urn:schemas-microsoft-com:office:office"

+xmlns:w="urn:schemas-microsoft-com:office:word"

+xmlns="http://www.w3.org/TR/REC-html40">

+

+<head>

+<meta http-equiv=Content-Type content="text/html; charset=windows-1252">

+<meta name=ProgId content=Word.Document>

+<meta name=Generator content="Microsoft Word 11">

+<meta name=Originator content="Microsoft Word 11">

+<link rel=File-List href="asmUsage_files/filelist.xml">

+<title>Usage instruction and tips can be found in:</title>

+<!--[if gte mso 9]><xml>

+ <w:WordDocument>

+  <w:GrammarState>Clean</w:GrammarState>

+  <w:ValidateAgainstSchemas/>

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+ <w:LatentStyles DefLockedState="false" LatentStyleCount="156">

+ </w:LatentStyles>

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+<style>

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+

+<body lang=EN-US style='tab-interval:36.0pt'>

+

+<div class=Section1>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>Usage instruction and tips can be found in:</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>&nbsp;</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><b><span

+style='font-size:12.0pt'>The Assembler Tutorial</span></b></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><b><span

+style='font-size:12.0pt'>&nbsp;</span></b></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>Available in www.nand2tetris.org</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>&nbsp;</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>And in relevant book chapters from </span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><b><span

+style='font-size:12.0pt'>The Elements of Computing Systems,<o:p></o:p></span></b></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>by Noam Nisan and Shimon Schocken</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>MIT Press</span></p>

+

+<p class=MsoNormal>&nbsp;</p>

+

+</div>

+

+</body>

+

+</html>

diff --git a/tools/bin/help/compiler.txt b/tools/bin/help/compiler.txt
new file mode 100644
index 0000000..07bbba9
--- /dev/null
+++ b/tools/bin/help/compiler.txt
@@ -0,0 +1,9 @@
+Jack Compiler, Version 2.5

+

+This program is part of www.nand2tetris.org

+and the book "The Elements of Computing Systems"

+by Nisan and Schocken, MIT Press.

+

+Software Architects: Yaron Ukrainitz and Yannai A. Gonczarowski

+

+Usage instruction and tips can be found in the relevant book chapters.

diff --git a/tools/bin/help/cpuAbout.html b/tools/bin/help/cpuAbout.html
new file mode 100644
index 0000000..f806d5e
--- /dev/null
+++ b/tools/bin/help/cpuAbout.html
@@ -0,0 +1,96 @@
+<html xmlns:o="urn:schemas-microsoft-com:office:office"

+xmlns:w="urn:schemas-microsoft-com:office:word"

+xmlns="http://www.w3.org/TR/REC-html40">

+

+<head>

+<meta http-equiv=Content-Type content="text/html; charset=windows-1252">

+<meta name=ProgId content=Word.Document>

+<meta name=Generator content="Microsoft Word 10">

+<meta name=Originator content="Microsoft Word 10">

+<link rel=File-List href="cpuAbout_files/filelist.xml">

+<title>About CPU Emulator</title>

+<!--[if gte mso 9]><xml>

+ <w:WordDocument>

+  <w:GrammarState>Clean</w:GrammarState>

+  <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel>

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+<style>

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+	mso-fareast-font-family:"Times New Roman";}

+@page Section1

+	{size:8.5in 11.0in;

+	margin:1.0in 1.25in 1.0in 1.25in;

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+	mso-footer-margin:.5in;

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+</style>

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+</head>

+

+<body lang=EN-US style='tab-interval:.5in'>

+

+<div class=Section1>

+

+<p class=MsoBodyText align=center style='text-align:center'><b><span

+style='font-size:12.0pt'>CPU Emulator, Version 2.5</span></b></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>&nbsp;</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'>This program is

+part of www.nand2tetris.org<o:p></o:p></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span class=GramE>and</span>

+the book &quot;The Elements of Computing Systems&quot;<o:p></o:p></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span class=GramE>by</span>

+Nisan and Schocken, MIT Press.</p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>&nbsp;</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>Software Architects: Yaron Ukrainitz and Yannai A. Gonczarowski</span></p>

+

+<p class=MsoNormal>&nbsp;</p>

+

+</div>

+

+</body>

+

+</html>

diff --git a/tools/bin/help/cpuUsage.html b/tools/bin/help/cpuUsage.html
new file mode 100644
index 0000000..7e69482
--- /dev/null
+++ b/tools/bin/help/cpuUsage.html
@@ -0,0 +1,115 @@
+<html xmlns:o="urn:schemas-microsoft-com:office:office"

+xmlns:w="urn:schemas-microsoft-com:office:word"

+xmlns="http://www.w3.org/TR/REC-html40">

+

+<head>

+<meta http-equiv=Content-Type content="text/html; charset=windows-1252">

+<meta name=ProgId content=Word.Document>

+<meta name=Generator content="Microsoft Word 11">

+<meta name=Originator content="Microsoft Word 11">

+<link rel=File-List href="cpuUsage_files/filelist.xml">

+<title>Usage instruction and tips can be found in:</title>

+<!--[if gte mso 9]><xml>

+ <w:WordDocument>

+  <w:GrammarState>Clean</w:GrammarState>

+  <w:ValidateAgainstSchemas/>

+  <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid>

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+ <w:LatentStyles DefLockedState="false" LatentStyleCount="156">

+ </w:LatentStyles>

+</xml><![endif]-->

+<style>

+<!--

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+<style>

+ /* Style Definitions */

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+	{mso-style-name:"Table Normal";

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+</head>

+

+<body lang=EN-US style='tab-interval:36.0pt'>

+

+<div class=Section1>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>Usage instruction and tips can be found in:</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>&nbsp;</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><b><span

+style='font-size:12.0pt'>The CPU Emulator Tutorial</span></b></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><b><span

+style='font-size:12.0pt'>&nbsp;</span></b></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>Available in www.nand2tetris.org</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>&nbsp;</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>And in relevant book chapters from </span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><b><span

+style='font-size:12.0pt'>The Elements of Computing Systems,<o:p></o:p></span></b></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>by Noam Nisan and Shimon Schocken</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>MIT Press</span></p>

+

+<p class=MsoNormal>&nbsp;</p>

+

+</div>

+

+</body>

+

+</html>

diff --git a/tools/bin/help/hwAbout.html b/tools/bin/help/hwAbout.html
new file mode 100644
index 0000000..67ad89b
--- /dev/null
+++ b/tools/bin/help/hwAbout.html
@@ -0,0 +1,96 @@
+<html xmlns:o="urn:schemas-microsoft-com:office:office"

+xmlns:w="urn:schemas-microsoft-com:office:word"

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+

+<head>

+<meta http-equiv=Content-Type content="text/html; charset=windows-1252">

+<meta name=ProgId content=Word.Document>

+<meta name=Generator content="Microsoft Word 10">

+<meta name=Originator content="Microsoft Word 10">

+<link rel=File-List href="hwAbout_files/filelist.xml">

+<title>About Hardware Simulator</title>

+<!--[if gte mso 9]><xml>

+ <w:WordDocument>

+  <w:GrammarState>Clean</w:GrammarState>

+  <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel>

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+</style>

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+</head>

+

+<body lang=EN-US style='tab-interval:.5in'>

+

+<div class=Section1>

+

+<p class=MsoBodyText align=center style='text-align:center'><b><span

+style='font-size:12.0pt'>Hardware Simulator, Version 2.5</span></b></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>&nbsp;</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'>This program is

+part of www.nand2tetris.org<o:p></o:p></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span class=GramE>and</span>

+the book &quot;The Elements of Computing Systems&quot;<o:p></o:p></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span class=GramE>by</span>

+Nisan and Schocken, MIT Press.</p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>&nbsp;</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>Software Architects: Yaron Ukrainitz and Yannai A. Gonczarowski</span></p>

+

+<p class=MsoNormal>&nbsp;</p>

+

+</div>

+

+</body>

+

+</html>

diff --git a/tools/bin/help/hwUsage.html b/tools/bin/help/hwUsage.html
new file mode 100644
index 0000000..4663f53
--- /dev/null
+++ b/tools/bin/help/hwUsage.html
@@ -0,0 +1,115 @@
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+<meta http-equiv=Content-Type content="text/html; charset=windows-1252">

+<meta name=ProgId content=Word.Document>

+<meta name=Generator content="Microsoft Word 11">

+<meta name=Originator content="Microsoft Word 11">

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+ <w:WordDocument>

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+</head>

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+

+<div class=Section1>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>Usage instruction and tips can be found in:</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>&nbsp;</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><b><span

+style='font-size:12.0pt'>The Hardware Simulator Tutorial</span></b></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><b><span

+style='font-size:12.0pt'>&nbsp;</span></b></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>Available in www.nand2tetris.org</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>&nbsp;</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>And in relevant book chapters from </span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><b><span

+style='font-size:12.0pt'>The Elements of Computing Systems,<o:p></o:p></span></b></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>by Noam Nisan and Shimon Schocken</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>MIT Press</span></p>

+

+<p class=MsoNormal>&nbsp;</p>

+

+</div>

+

+</body>

+

+</html>

diff --git a/tools/bin/help/vmAbout.html b/tools/bin/help/vmAbout.html
new file mode 100644
index 0000000..c5b296a
--- /dev/null
+++ b/tools/bin/help/vmAbout.html
@@ -0,0 +1,110 @@
+<html xmlns:o="urn:schemas-microsoft-com:office:office"

+xmlns:w="urn:schemas-microsoft-com:office:word"

+xmlns="http://www.w3.org/TR/REC-html40">

+

+<head>

+<meta http-equiv=Content-Type content="text/html; charset=windows-1252">

+<meta name=ProgId content=Word.Document>

+<meta name=Generator content="Microsoft Word 11">

+<meta name=Originator content="Microsoft Word 11">

+<link rel=File-List href="vmAbout_files/filelist.xml">

+<title>About Virtual Machine Emulator</title>

+<!--[if gte mso 9]><xml>

+ <w:WordDocument>

+  <w:GrammarState>Clean</w:GrammarState>

+  <w:ValidateAgainstSchemas/>

+  <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid>

+  <w:IgnoreMixedContent>false</w:IgnoreMixedContent>

+  <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText>

+  <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel>

+ </w:WordDocument>

+</xml><![endif]--><!--[if gte mso 9]><xml>

+ <w:LatentStyles DefLockedState="false" LatentStyleCount="156">

+ </w:LatentStyles>

+</xml><![endif]-->

+<style>

+<!--

+ /* Style Definitions */

+ p.MsoNormal, li.MsoNormal, div.MsoNormal

+	{mso-style-parent:"";

+	margin:0cm;

+	margin-bottom:.0001pt;

+	mso-pagination:widow-orphan;

+	font-size:12.0pt;

+	font-family:"Times New Roman";

+	mso-fareast-font-family:"Times New Roman";}

+p.MsoBodyText, li.MsoBodyText, div.MsoBodyText

+	{margin:0cm;

+	margin-bottom:.0001pt;

+	mso-pagination:widow-orphan;

+	font-size:13.0pt;

+	font-family:"Times New Roman";

+	mso-fareast-font-family:"Times New Roman";}

+span.GramE

+	{mso-style-name:"";

+	mso-gram-e:yes;}

+@page Section1

+	{size:612.0pt 792.0pt;

+	margin:72.0pt 90.0pt 72.0pt 90.0pt;

+	mso-header-margin:36.0pt;

+	mso-footer-margin:36.0pt;

+	mso-paper-source:0;}

+div.Section1

+	{page:Section1;}

+-->

+</style>

+<!--[if gte mso 10]>

+<style>

+ /* Style Definitions */

+ table.MsoNormalTable

+	{mso-style-name:"Table Normal";

+	mso-tstyle-rowband-size:0;

+	mso-tstyle-colband-size:0;

+	mso-style-noshow:yes;

+	mso-style-parent:"";

+	mso-padding-alt:0cm 5.4pt 0cm 5.4pt;

+	mso-para-margin:0cm;

+	mso-para-margin-bottom:.0001pt;

+	mso-pagination:widow-orphan;

+	font-size:10.0pt;

+	font-family:"Times New Roman";

+	mso-ansi-language:#0400;

+	mso-fareast-language:#0400;

+	mso-bidi-language:#0400;}

+</style>

+<![endif]-->

+</head>

+

+<body lang=EN-US style='tab-interval:36.0pt'>

+

+<div class=Section1>

+

+<p class=MsoBodyText align=center style='text-align:center'><b><span

+style='font-size:12.0pt'>Virtual Machine Emulator, Version 2.5</span></b></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>&nbsp;</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'>This program is

+part of www.nand2tetris.org<o:p></o:p></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span class=GramE>and</span>

+the book &quot;The Elements of Computing Systems&quot;<o:p></o:p></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span class=GramE>by</span>

+Nisan and Schocken, MIT Press.</p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>&nbsp;</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>Software Architects: Yaron Ukrainitz and Yannai A.

+Gonczarowski</span></p>

+

+<p class=MsoNormal>&nbsp;</p>

+

+</div>

+

+</body>

+

+</html>

diff --git a/tools/bin/help/vmUsage.html b/tools/bin/help/vmUsage.html
new file mode 100644
index 0000000..611662b
--- /dev/null
+++ b/tools/bin/help/vmUsage.html
@@ -0,0 +1,115 @@
+<html xmlns:o="urn:schemas-microsoft-com:office:office"

+xmlns:w="urn:schemas-microsoft-com:office:word"

+xmlns="http://www.w3.org/TR/REC-html40">

+

+<head>

+<meta http-equiv=Content-Type content="text/html; charset=windows-1252">

+<meta name=ProgId content=Word.Document>

+<meta name=Generator content="Microsoft Word 11">

+<meta name=Originator content="Microsoft Word 11">

+<link rel=File-List href="vmUsage_files/filelist.xml">

+<title>Usage instruction and tips can be found in:</title>

+<!--[if gte mso 9]><xml>

+ <w:WordDocument>

+  <w:GrammarState>Clean</w:GrammarState>

+  <w:ValidateAgainstSchemas/>

+  <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid>

+  <w:IgnoreMixedContent>false</w:IgnoreMixedContent>

+  <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText>

+  <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel>

+ </w:WordDocument>

+</xml><![endif]--><!--[if gte mso 9]><xml>

+ <w:LatentStyles DefLockedState="false" LatentStyleCount="156">

+ </w:LatentStyles>

+</xml><![endif]-->

+<style>

+<!--

+ /* Style Definitions */

+ p.MsoNormal, li.MsoNormal, div.MsoNormal

+	{mso-style-parent:"";

+	margin:0cm;

+	margin-bottom:.0001pt;

+	mso-pagination:widow-orphan;

+	font-size:12.0pt;

+	font-family:"Times New Roman";

+	mso-fareast-font-family:"Times New Roman";}

+p.MsoBodyText, li.MsoBodyText, div.MsoBodyText

+	{margin:0cm;

+	margin-bottom:.0001pt;

+	mso-pagination:widow-orphan;

+	font-size:13.0pt;

+	font-family:"Times New Roman";

+	mso-fareast-font-family:"Times New Roman";}

+@page Section1

+	{size:612.0pt 792.0pt;

+	margin:72.0pt 90.0pt 72.0pt 90.0pt;

+	mso-header-margin:36.0pt;

+	mso-footer-margin:36.0pt;

+	mso-paper-source:0;}

+div.Section1

+	{page:Section1;}

+-->

+</style>

+<!--[if gte mso 10]>

+<style>

+ /* Style Definitions */

+ table.MsoNormalTable

+	{mso-style-name:"Table Normal";

+	mso-tstyle-rowband-size:0;

+	mso-tstyle-colband-size:0;

+	mso-style-noshow:yes;

+	mso-style-parent:"";

+	mso-padding-alt:0cm 5.4pt 0cm 5.4pt;

+	mso-para-margin:0cm;

+	mso-para-margin-bottom:.0001pt;

+	mso-pagination:widow-orphan;

+	font-size:10.0pt;

+	font-family:"Times New Roman";

+	mso-ansi-language:#0400;

+	mso-fareast-language:#0400;

+	mso-bidi-language:#0400;}

+</style>

+<![endif]-->

+</head>

+

+<body lang=EN-US style='tab-interval:36.0pt'>

+

+<div class=Section1>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>Usage instruction and tips can be found in:</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>&nbsp;</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><b><span

+style='font-size:12.0pt'>The VM Emulator Tutorial</span></b></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><b><span

+style='font-size:12.0pt'>&nbsp;</span></b></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>Available in www.nand2tetris.org</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>&nbsp;</span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>And in relevant book chapters from </span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><b><span

+style='font-size:12.0pt'>The Elements of Computing Systems,<o:p></o:p></span></b></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>by Noam Nisan and Shimon Schocken<b><o:p></o:p></b></span></p>

+

+<p class=MsoBodyText align=center style='text-align:center'><span

+style='font-size:12.0pt'>MIT Press</span></p>

+

+<p class=MsoNormal>&nbsp;</p>

+

+</div>

+

+</body>

+

+</html>

diff --git a/tools/bin/images/arrow2.gif b/tools/bin/images/arrow2.gif
new file mode 100644
index 0000000..c744eab
--- /dev/null
+++ b/tools/bin/images/arrow2.gif
diff --git a/tools/bin/images/calculator2.gif b/tools/bin/images/calculator2.gif
new file mode 100644
index 0000000..834cb05
--- /dev/null
+++ b/tools/bin/images/calculator2.gif
diff --git a/tools/bin/images/cancel.gif b/tools/bin/images/cancel.gif
new file mode 100644
index 0000000..a8509fa
--- /dev/null
+++ b/tools/bin/images/cancel.gif
diff --git a/tools/bin/images/chip.gif b/tools/bin/images/chip.gif
new file mode 100644
index 0000000..fbfbb02
--- /dev/null
+++ b/tools/bin/images/chip.gif
diff --git a/tools/bin/images/clock2.gif b/tools/bin/images/clock2.gif
new file mode 100644
index 0000000..addcf78
--- /dev/null
+++ b/tools/bin/images/clock2.gif
diff --git a/tools/bin/images/equal.gif b/tools/bin/images/equal.gif
new file mode 100644
index 0000000..3402556
--- /dev/null
+++ b/tools/bin/images/equal.gif
diff --git a/tools/bin/images/find.gif b/tools/bin/images/find.gif
new file mode 100644
index 0000000..e3f4c9d
--- /dev/null
+++ b/tools/bin/images/find.gif
diff --git a/tools/bin/images/hex.gif b/tools/bin/images/hex.gif
new file mode 100644
index 0000000..68a851b
--- /dev/null
+++ b/tools/bin/images/hex.gif
diff --git a/tools/bin/images/keyboard.gif b/tools/bin/images/keyboard.gif
new file mode 100644
index 0000000..823aaf8
--- /dev/null
+++ b/tools/bin/images/keyboard.gif
diff --git a/tools/bin/images/ok.gif b/tools/bin/images/ok.gif
new file mode 100644
index 0000000..fe6ed8d
--- /dev/null
+++ b/tools/bin/images/ok.gif
diff --git a/tools/bin/images/ok2.gif b/tools/bin/images/ok2.gif
new file mode 100644
index 0000000..083909b
--- /dev/null
+++ b/tools/bin/images/ok2.gif
diff --git a/tools/bin/images/open.gif b/tools/bin/images/open.gif
new file mode 100644
index 0000000..f69a024
--- /dev/null
+++ b/tools/bin/images/open.gif
diff --git a/tools/bin/images/open2.gif b/tools/bin/images/open2.gif
new file mode 100644
index 0000000..2b94682
--- /dev/null
+++ b/tools/bin/images/open2.gif
diff --git a/tools/bin/images/opendoc.gif b/tools/bin/images/opendoc.gif
new file mode 100644
index 0000000..e84f0d6
--- /dev/null
+++ b/tools/bin/images/opendoc.gif
diff --git a/tools/bin/images/redflag.gif b/tools/bin/images/redflag.gif
new file mode 100644
index 0000000..1b1a6b1
--- /dev/null
+++ b/tools/bin/images/redflag.gif
diff --git a/tools/bin/images/save.gif b/tools/bin/images/save.gif
new file mode 100644
index 0000000..7b5d5b9
--- /dev/null
+++ b/tools/bin/images/save.gif
diff --git a/tools/bin/images/scroll.gif b/tools/bin/images/scroll.gif
new file mode 100644
index 0000000..e00a9a1
--- /dev/null
+++ b/tools/bin/images/scroll.gif
diff --git a/tools/bin/images/smallcancel.gif b/tools/bin/images/smallcancel.gif
new file mode 100644
index 0000000..1f8cddc
--- /dev/null
+++ b/tools/bin/images/smallcancel.gif
diff --git a/tools/bin/images/smallequal.gif b/tools/bin/images/smallequal.gif
new file mode 100644
index 0000000..a1db606
--- /dev/null
+++ b/tools/bin/images/smallequal.gif
diff --git a/tools/bin/images/smallminus.gif b/tools/bin/images/smallminus.gif
new file mode 100644
index 0000000..06492f5
--- /dev/null
+++ b/tools/bin/images/smallminus.gif
diff --git a/tools/bin/images/smallnew.gif b/tools/bin/images/smallnew.gif
new file mode 100644
index 0000000..c3137e5
--- /dev/null
+++ b/tools/bin/images/smallnew.gif
diff --git a/tools/bin/images/smallok.gif b/tools/bin/images/smallok.gif
new file mode 100644
index 0000000..9bef2b2
--- /dev/null
+++ b/tools/bin/images/smallok.gif
diff --git a/tools/bin/images/smallplus.gif b/tools/bin/images/smallplus.gif
new file mode 100644
index 0000000..9030b0b
--- /dev/null
+++ b/tools/bin/images/smallplus.gif
diff --git a/tools/bin/images/vcrfastforward.gif b/tools/bin/images/vcrfastforward.gif
new file mode 100644
index 0000000..11c7235
--- /dev/null
+++ b/tools/bin/images/vcrfastforward.gif
diff --git a/tools/bin/images/vcrforward.gif b/tools/bin/images/vcrforward.gif
new file mode 100644
index 0000000..b58d649
--- /dev/null
+++ b/tools/bin/images/vcrforward.gif
diff --git a/tools/bin/images/vcrrewind.gif b/tools/bin/images/vcrrewind.gif
new file mode 100644
index 0000000..e55b4d6
--- /dev/null
+++ b/tools/bin/images/vcrrewind.gif
diff --git a/tools/bin/images/vcrstop.gif b/tools/bin/images/vcrstop.gif
new file mode 100644
index 0000000..abe2082
--- /dev/null
+++ b/tools/bin/images/vcrstop.gif
diff --git a/tools/bin/lib/AssemblerGUI.jar b/tools/bin/lib/AssemblerGUI.jar
new file mode 100644
index 0000000..c40d455
--- /dev/null
+++ b/tools/bin/lib/AssemblerGUI.jar
diff --git a/tools/bin/lib/Compilers.jar b/tools/bin/lib/Compilers.jar
new file mode 100644
index 0000000..9a78b05
--- /dev/null
+++ b/tools/bin/lib/Compilers.jar
diff --git a/tools/bin/lib/Hack.jar b/tools/bin/lib/Hack.jar
new file mode 100644
index 0000000..9d57398
--- /dev/null
+++ b/tools/bin/lib/Hack.jar
diff --git a/tools/bin/lib/HackGUI.jar b/tools/bin/lib/HackGUI.jar
new file mode 100644
index 0000000..22d4ff3
--- /dev/null
+++ b/tools/bin/lib/HackGUI.jar
diff --git a/tools/bin/lib/Simulators.jar b/tools/bin/lib/Simulators.jar
new file mode 100644
index 0000000..72b5db7
--- /dev/null
+++ b/tools/bin/lib/Simulators.jar
diff --git a/tools/bin/lib/SimulatorsGUI.jar b/tools/bin/lib/SimulatorsGUI.jar
new file mode 100644
index 0000000..4d36e64
--- /dev/null
+++ b/tools/bin/lib/SimulatorsGUI.jar
diff --git a/tools/bin/lib/TranslatorsGUI.jar b/tools/bin/lib/TranslatorsGUI.jar
new file mode 100644
index 0000000..f29f926
--- /dev/null
+++ b/tools/bin/lib/TranslatorsGUI.jar
diff --git a/tools/bin/scripts/defaultCPU.txt b/tools/bin/scripts/defaultCPU.txt
new file mode 100644
index 0000000..43b2720
--- /dev/null
+++ b/tools/bin/scripts/defaultCPU.txt
@@ -0,0 +1,3 @@
+repeat {

+    ticktock;

+}
\ No newline at end of file
diff --git a/tools/bin/scripts/defaultHW.txt b/tools/bin/scripts/defaultHW.txt
new file mode 100644
index 0000000..bdb2261
--- /dev/null
+++ b/tools/bin/scripts/defaultHW.txt
@@ -0,0 +1,4 @@
+repeat {

+    tick,

+    tock;

+}
\ No newline at end of file
diff --git a/tools/bin/scripts/defaultVM.txt b/tools/bin/scripts/defaultVM.txt
new file mode 100644
index 0000000..dbc64c4
--- /dev/null
+++ b/tools/bin/scripts/defaultVM.txt
@@ -0,0 +1,3 @@
+repeat {

+    vmstep;

+}
\ No newline at end of file
diff --git a/tools/builtInChips/ALU.class b/tools/builtInChips/ALU.class
new file mode 100644
index 0000000..03f95dc
--- /dev/null
+++ b/tools/builtInChips/ALU.class
diff --git a/tools/builtInChips/ALU.hdl b/tools/builtInChips/ALU.hdl
new file mode 100644
index 0000000..e5fd1f0
--- /dev/null
+++ b/tools/builtInChips/ALU.hdl
@@ -0,0 +1,55 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/ALU.hdl

+

+/**

+ * The ALU. Computes one of the following functions:

+ * x+y, x-y, y–x, 0, 1, -1, x, y, -x, -y, !x, !y,

+ * x+1, y+1, x-1, y-1, x&y, x|y on two 16-bit inputs.

+ * Which function to compute is determined by 6 input bits 

+ * denoted zx, nx, zy, ny, f, no.

+ * The computed function's value is called "out".

+ * In addition to computing out, the ALU computes two 

+ * 1-bit outputs called zr and ng:

+ * if out == 0, zr = 1; otherwise zr = 0;

+ * If out < 0, ng = 1; otherwise ng = 0.

+ * The 6-bit combinations (zx,nx,zy,ny,f,no) and 

+ * their effect are documented in the book. 

+ */

+

+// Implementation: the ALU manipulates the x and y

+// inputs and then operates on the resulting values, 

+// as follows:

+// if (zx  == 1) sets x = 0        // 16-bit constant

+// if (nx  == 1) sets x = ~x       // bitwise "not"

+// if (zy  == 1) sets y = 0        // 16-bit constant

+// if (ny  == 1) sets y = ~y       // bitwise "not"

+// if (f   == 1) sets out = x + y  // integer 2's-complement addition

+// if (f   == 0) sets out = x & y  // bitwise And

+// if (no  == 1) sets out = ~out   // bitwise Not

+// if (out == 0) sets zr = 1

+// if (out < 0)  sets ng = 1

+

+

+CHIP ALU {

+

+    IN  // 16-bit inputs:

+        x[16], y[16],

+        // Control bits:

+        zx, // Zero the x input

+        nx, // Negate the x input

+        zy, // Zero the y input

+        ny, // Negate the y input

+        f,  // Function code: 1 for add, 0 for and

+        no; // Negate the out output

+

+    OUT // 16-bit output

+        out[16],

+

+        // ALU output flags

+        zr, // 1 if out=0, 0 otherwise

+        ng; // 1 if out<0, 0 otherwise

+

+    BUILTIN ALU;

+}

diff --git a/tools/builtInChips/ARegister.class b/tools/builtInChips/ARegister.class
new file mode 100644
index 0000000..ab9aadc
--- /dev/null
+++ b/tools/builtInChips/ARegister.class
diff --git a/tools/builtInChips/ARegister.hdl b/tools/builtInChips/ARegister.hdl
new file mode 100644
index 0000000..23aee73
--- /dev/null
+++ b/tools/builtInChips/ARegister.hdl
@@ -0,0 +1,24 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/ARegister.hdl

+

+/**

+ * A 16-Bit register called "A Register". 

+ * If load[t-1]=1 then out[t] = in[t-1]

+ * else out does not change (out[t] = out[t-1])

+ *

+ * This built-in chip implementation has the side effect of 

+ * providing a GUI representation of a 16-bit register

+ * called "A register" (typically used to store an address).

+ */

+

+CHIP ARegister {

+

+    IN  in[16], load;

+    OUT out[16];

+

+    BUILTIN ARegister;

+    CLOCKED in, load;

+}

+

diff --git a/tools/builtInChips/Add16.class b/tools/builtInChips/Add16.class
new file mode 100644
index 0000000..c3754ce
--- /dev/null
+++ b/tools/builtInChips/Add16.class
diff --git a/tools/builtInChips/Add16.hdl b/tools/builtInChips/Add16.hdl
new file mode 100644
index 0000000..a494af4
--- /dev/null
+++ b/tools/builtInChips/Add16.hdl
@@ -0,0 +1,18 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/Add16.hdl

+

+/*

+ * Adds two 16-bit values.

+ * The most significant carry bit is ignored.

+ */

+

+CHIP Add16 {

+

+    IN  a[16], b[16];

+    OUT out[16];

+

+    BUILTIN Add16;

+}

+

diff --git a/tools/builtInChips/And.class b/tools/builtInChips/And.class
new file mode 100644
index 0000000..2c7492b
--- /dev/null
+++ b/tools/builtInChips/And.class
diff --git a/tools/builtInChips/And.hdl b/tools/builtInChips/And.hdl
new file mode 100644
index 0000000..d2c48b5
--- /dev/null
+++ b/tools/builtInChips/And.hdl
@@ -0,0 +1,16 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/And.hdl

+

+/**

+ * And gate: out = 1 if {a == 1 and b == 1}, 0 otherwise  

+ */

+

+CHIP And {

+

+    IN  a, b;

+    OUT out;

+

+    BUILTIN And;

+}

diff --git a/tools/builtInChips/And16.hdl b/tools/builtInChips/And16.hdl
new file mode 100644
index 0000000..4c71874
--- /dev/null
+++ b/tools/builtInChips/And16.hdl
@@ -0,0 +1,17 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/And16.hdl

+

+/**

+ * 16-bit-wise And gate: for i = 0..15: out[i] = a[i] and b[i]

+ */

+

+CHIP And16 {

+

+    IN  a[16], b[16];

+    OUT out[16];

+

+    BUILTIN And;

+}

+

diff --git a/tools/builtInChips/Bit.class b/tools/builtInChips/Bit.class
new file mode 100644
index 0000000..1e5a3c4
--- /dev/null
+++ b/tools/builtInChips/Bit.class
diff --git a/tools/builtInChips/Bit.hdl b/tools/builtInChips/Bit.hdl
new file mode 100644
index 0000000..a0a76bb
--- /dev/null
+++ b/tools/builtInChips/Bit.hdl
@@ -0,0 +1,19 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/Bit.hdl

+

+/**

+ * 1-bit register.

+ * If load[t] == 1 then out[t+1] = in[t]

+ *                 else out[t+1] = out[t] (no change)

+ */

+

+CHIP Bit {

+

+    IN  in, load;

+    OUT out;

+

+    BUILTIN Bit;

+    CLOCKED in, load;

+}

diff --git a/tools/builtInChips/DFF.class b/tools/builtInChips/DFF.class
new file mode 100644
index 0000000..49efcf1
--- /dev/null
+++ b/tools/builtInChips/DFF.class
diff --git a/tools/builtInChips/DFF.hdl b/tools/builtInChips/DFF.hdl
new file mode 100644
index 0000000..c66b796
--- /dev/null
+++ b/tools/builtInChips/DFF.hdl
@@ -0,0 +1,18 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/DFF.hdl

+

+/**

+ * Data Flip-flop: out(t) = in(t-1) 

+ * where t is the current time unit, or clock cycle.

+ */

+

+CHIP DFF {

+

+    IN  in;

+    OUT out;

+

+    BUILTIN DFF;

+    CLOCKED in;

+}

diff --git a/tools/builtInChips/DMux.class b/tools/builtInChips/DMux.class
new file mode 100644
index 0000000..8cf4e0b
--- /dev/null
+++ b/tools/builtInChips/DMux.class
diff --git a/tools/builtInChips/DMux.hdl b/tools/builtInChips/DMux.hdl
new file mode 100644
index 0000000..80153d7
--- /dev/null
+++ b/tools/builtInChips/DMux.hdl
@@ -0,0 +1,20 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/DMux.hdl

+

+/**

+ * Dmultiplexor.  

+ * {a,b} = {in,0} if sel == 0

+ *         {0,in} if sel == 1

+ */

+
+ 

+CHIP DMux {

+

+    IN  in, sel;

+    OUT a, b;

+

+    BUILTIN DMux;

+}

+

diff --git a/tools/builtInChips/DMux4Way.class b/tools/builtInChips/DMux4Way.class
new file mode 100644
index 0000000..ab72a17
--- /dev/null
+++ b/tools/builtInChips/DMux4Way.class
diff --git a/tools/builtInChips/DMux4Way.hdl b/tools/builtInChips/DMux4Way.hdl
new file mode 100644
index 0000000..110bb4e
--- /dev/null
+++ b/tools/builtInChips/DMux4Way.hdl
@@ -0,0 +1,22 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/DMux4Way.hdl

+

+/**

+ * 4-way demultiplexor.  

+ * {a,b,c,d} = {in,0,0,0} if sel == 00

+ *             {0,in,0,0} if sel == 01

+ *             {0,0,in,0} if sel == 10

+ *             {0,0,0,in} if sel == 11

+ */

+
+

+CHIP DMux4Way {

+

+    IN  in, sel[2];

+    OUT a, b, c, d;

+

+    BUILTIN DMux4Way;

+}

+

diff --git a/tools/builtInChips/DMux8Way.class b/tools/builtInChips/DMux8Way.class
new file mode 100644
index 0000000..80e7437
--- /dev/null
+++ b/tools/builtInChips/DMux8Way.class
diff --git a/tools/builtInChips/DMux8Way.hdl b/tools/builtInChips/DMux8Way.hdl
new file mode 100644
index 0000000..c5536b8
--- /dev/null
+++ b/tools/builtInChips/DMux8Way.hdl
@@ -0,0 +1,22 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/DMux8Way.hdl

+

+/**

+ * 8-way demultiplexor.  

+ * {a,b,c,d,e,f,g,h} = {in,0,0,0,0,0,0,0} if sel == 000

+ *                     {0,in,0,0,0,0,0,0} if sel == 001

+ *                     etc.

+ *                     {0,0,0,0,0,0,0,in} if sel == 111

+ */

+
+

+CHIP DMux8Way {

+

+    IN  in, sel[3];

+    OUT a, b, c, d, e, f, g, h;

+

+    BUILTIN DMux8Way;

+}

+

diff --git a/tools/builtInChips/DRegister.class b/tools/builtInChips/DRegister.class
new file mode 100644
index 0000000..74a713d
--- /dev/null
+++ b/tools/builtInChips/DRegister.class
diff --git a/tools/builtInChips/DRegister.hdl b/tools/builtInChips/DRegister.hdl
new file mode 100644
index 0000000..6c9a254
--- /dev/null
+++ b/tools/builtInChips/DRegister.hdl
@@ -0,0 +1,24 @@
+// This file is part of the materials accompanying the book

+// "The Elements of Computing Systems" by Nisan and Schocken, 

+// MIT Press. Book site: www.idc.ac.il/tecs

+// File name: tools/builtIn/DRegister.hdl

+

+/**

+ * A 16-Bit register called "D Register". 

+ * If load[t-1]=1 then out[t] = in[t-1]

+ * else out does not change (out[t] = out[t-1])

+ *

+ * This built-in chip implementation has the side effect of 

+ * providing a GUI representation of a 16-bit register

+ * called "D register" (typically used to store data).

+ */

+

+CHIP DRegister {

+

+    IN  in[16], load;

+    OUT out[16];

+

+    BUILTIN DRegister;

+    CLOCKED in, load;

+}

+

diff --git a/tools/builtInChips/FullAdder.class b/tools/builtInChips/FullAdder.class
new file mode 100644
index 0000000..2ed9ead
--- /dev/null
+++ b/tools/builtInChips/FullAdder.class
diff --git a/tools/builtInChips/FullAdder.hdl b/tools/builtInChips/FullAdder.hdl
new file mode 100644
index 0000000..a4caa56
--- /dev/null
+++ b/tools/builtInChips/FullAdder.hdl
@@ -0,0 +1,19 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/FullAdder.hdl

+

+/**

+ * Full adder. Computes sum, the least significant bit of 

+ * a + b + c, and carry, the most significant bit of a + b + c.

+ */

+

+CHIP FullAdder {

+

+    IN  a, b, c;

+    OUT sum,     // LSB of a + b + c

+        carry;   // MSB of a + b + c

+

+    BUILTIN FullAdder;

+}

+

diff --git a/tools/builtInChips/HalfAdder.class b/tools/builtInChips/HalfAdder.class
new file mode 100644
index 0000000..e7741ed
--- /dev/null
+++ b/tools/builtInChips/HalfAdder.class
diff --git a/tools/builtInChips/HalfAdder.hdl b/tools/builtInChips/HalfAdder.hdl
new file mode 100644
index 0000000..1591b96
--- /dev/null
+++ b/tools/builtInChips/HalfAdder.hdl
@@ -0,0 +1,18 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/HalfAdder.hdl

+

+/**

+ * Half adder. Computes sum, the least significnat bit of a + b,

+ * and carry, the most significnat bit of a + b.

+ */

+

+CHIP HalfAdder {

+

+    IN  a, b;

+    OUT sum,   // LSB of a + b

+        carry; // MSB of a + b

+

+    BUILTIN HalfAdder;

+}

diff --git a/tools/builtInChips/Inc16.class b/tools/builtInChips/Inc16.class
new file mode 100644
index 0000000..b5b2aeb
--- /dev/null
+++ b/tools/builtInChips/Inc16.class
diff --git a/tools/builtInChips/Inc16.hdl b/tools/builtInChips/Inc16.hdl
new file mode 100644
index 0000000..9d2d49b
--- /dev/null
+++ b/tools/builtInChips/Inc16.hdl
@@ -0,0 +1,18 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/Inc16.hdl

+

+/**

+ * 16-bit incrementer.  out = in + 1 (16-bit addition).

+ * Overflow is neither detected nor handled.

+ */

+

+CHIP Inc16 {

+

+    IN  in[16];

+    OUT out[16];

+

+    BUILTIN Inc16;

+}

+

diff --git a/tools/builtInChips/Keyboard.class b/tools/builtInChips/Keyboard.class
new file mode 100644
index 0000000..090b7cc
--- /dev/null
+++ b/tools/builtInChips/Keyboard.class
diff --git a/tools/builtInChips/Keyboard.hdl b/tools/builtInChips/Keyboard.hdl
new file mode 100644
index 0000000..26ca5ed
--- /dev/null
+++ b/tools/builtInChips/Keyboard.hdl
@@ -0,0 +1,23 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/Keyboard.hdl

+

+/**

+ * The keyboard (memory map).

+ * Outputs the code of the currently pressed key.

+ *

+ * The built-in chip implementation has two side effects supplied 

+ * by the simulator. First, the keyboard memory map is continuously 

+ * being refreshed from the physical keyboard unit. Second, it 

+ * displays a keyboard icon and data entry GUI.

+ */

+

+CHIP Keyboard {

+

+    OUT out[16];   // The ASCII code of the pressed key, 

+                   // or 0 if no key is currently pressed, 

+                   // or one the special codes listed in Figure 5.5.

+

+    BUILTIN Keyboard;

+}

diff --git a/tools/builtInChips/Mux.class b/tools/builtInChips/Mux.class
new file mode 100644
index 0000000..75c6645
--- /dev/null
+++ b/tools/builtInChips/Mux.class
diff --git a/tools/builtInChips/Mux.hdl b/tools/builtInChips/Mux.hdl
new file mode 100644
index 0000000..a0eefbc
--- /dev/null
+++ b/tools/builtInChips/Mux.hdl
@@ -0,0 +1,16 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/Mux.hdl

+

+/** 

+ * Multiplexor. If sel == 1 then out = b else out = a.

+ */

+

+CHIP Mux {

+

+    IN  a, b, sel;

+    OUT out;

+

+    BUILTIN Mux;

+}

diff --git a/tools/builtInChips/Mux16.hdl b/tools/builtInChips/Mux16.hdl
new file mode 100644
index 0000000..676d1f4
--- /dev/null
+++ b/tools/builtInChips/Mux16.hdl
@@ -0,0 +1,16 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/Mux16.hdl

+

+/**

+ * 16 bit multiplexor. If sel == 1 then out = b else out = a.

+ */

+

+CHIP Mux16 {

+

+    IN  a[16], b[16], sel;

+    OUT out[16];

+

+    BUILTIN Mux;

+}

diff --git a/tools/builtInChips/Mux4Way16.class b/tools/builtInChips/Mux4Way16.class
new file mode 100644
index 0000000..b2e2ed7
--- /dev/null
+++ b/tools/builtInChips/Mux4Way16.class
diff --git a/tools/builtInChips/Mux4Way16.hdl b/tools/builtInChips/Mux4Way16.hdl
new file mode 100644
index 0000000..9929e82
--- /dev/null
+++ b/tools/builtInChips/Mux4Way16.hdl
@@ -0,0 +1,21 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/Mux4Way16.hdl

+

+/**

+ * 4-way 16-bit multiplexor.  

+ * out = a if sel == 00

+ *       b if sel == 01

+ *       c if sel == 10

+ *       d if sel == 11

+ */

+
+

+CHIP Mux4Way16 {

+     

+    IN a[16], b[16], c[16], d[16], sel[2];

+    OUT out[16];

+

+    BUILTIN Mux4Way16;

+}

diff --git a/tools/builtInChips/Mux8Way16.class b/tools/builtInChips/Mux8Way16.class
new file mode 100644
index 0000000..d8040ef
--- /dev/null
+++ b/tools/builtInChips/Mux8Way16.class
diff --git a/tools/builtInChips/Mux8Way16.hdl b/tools/builtInChips/Mux8Way16.hdl
new file mode 100644
index 0000000..dc16861
--- /dev/null
+++ b/tools/builtInChips/Mux8Way16.hdl
@@ -0,0 +1,24 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/Mux8Way16.hdl

+

+/**

+ * 8-way 16-bit multiplexor.  

+ * out = a if sel == 000

+ *       b if sel == 001

+ *       etc.

+ *       h if sel == 111

+ */

+
+ 

+CHIP Mux8Way16 {

+

+    IN  a[16], b[16], c[16], d[16],

+        e[16], f[16], g[16], h[16],

+        sel[3];

+

+    OUT out[16];

+

+    BUILTIN Mux8Way16;

+}
\ No newline at end of file
diff --git a/tools/builtInChips/Nand.class b/tools/builtInChips/Nand.class
new file mode 100644
index 0000000..4b429ba
--- /dev/null
+++ b/tools/builtInChips/Nand.class
diff --git a/tools/builtInChips/Nand.hdl b/tools/builtInChips/Nand.hdl
new file mode 100644
index 0000000..ae0204e
--- /dev/null
+++ b/tools/builtInChips/Nand.hdl
@@ -0,0 +1,16 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/Nand.hdl

+

+/**

+ * Nand gate: out = a Nand b.

+ */

+

+CHIP Nand {

+

+    IN  a, b;

+    OUT out;

+

+    BUILTIN Nand;

+}

diff --git a/tools/builtInChips/Not.class b/tools/builtInChips/Not.class
new file mode 100644
index 0000000..4726b67
--- /dev/null
+++ b/tools/builtInChips/Not.class
diff --git a/tools/builtInChips/Not.hdl b/tools/builtInChips/Not.hdl
new file mode 100644
index 0000000..5b9d897
--- /dev/null
+++ b/tools/builtInChips/Not.hdl
@@ -0,0 +1,16 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/Not.hdl

+

+/**

+ * Not gate: out = not in 

+ */

+

+CHIP Not {

+

+    IN  in;

+    OUT out;

+

+    BUILTIN Not;

+}
\ No newline at end of file
diff --git a/tools/builtInChips/Not16.class b/tools/builtInChips/Not16.class
new file mode 100644
index 0000000..ff3e68f
--- /dev/null
+++ b/tools/builtInChips/Not16.class
diff --git a/tools/builtInChips/Not16.hdl b/tools/builtInChips/Not16.hdl
new file mode 100644
index 0000000..c50dab9
--- /dev/null
+++ b/tools/builtInChips/Not16.hdl
@@ -0,0 +1,16 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/Not16.hdl

+

+/**

+ * 16-bit Not gate: for i = 0..15: out[i] = not in[i]

+ */

+

+CHIP Not16 {

+

+    IN  in[16];

+    OUT out[16];

+

+    BUILTIN Not16;

+}
\ No newline at end of file
diff --git a/tools/builtInChips/Or.class b/tools/builtInChips/Or.class
new file mode 100644
index 0000000..a5b64f9
--- /dev/null
+++ b/tools/builtInChips/Or.class
diff --git a/tools/builtInChips/Or.hdl b/tools/builtInChips/Or.hdl
new file mode 100644
index 0000000..4a3f14b
--- /dev/null
+++ b/tools/builtInChips/Or.hdl
@@ -0,0 +1,16 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/Or.hdl

+


+/**

+ * Or gate: out = 1 if {a == 1 or b == 1}, 0 otherwise  

+ */

+

+CHIP Or {

+

+    IN  a, b;

+    OUT out;

+

+    BUILTIN Or;

+}

diff --git a/tools/builtInChips/Or16.hdl b/tools/builtInChips/Or16.hdl
new file mode 100644
index 0000000..6c124e8
--- /dev/null
+++ b/tools/builtInChips/Or16.hdl
@@ -0,0 +1,16 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/Or16.hdl

+

+/**

+ * 16-bit bitwise Or gate: for i = 0..15 out[i] = a[i] or b[i].

+ */

+

+CHIP Or16 {

+

+    IN  a[16], b[16];

+    OUT out[16];

+

+    BUILTIN Or;

+}

diff --git a/tools/builtInChips/Or8Way.class b/tools/builtInChips/Or8Way.class
new file mode 100644
index 0000000..104804b
--- /dev/null
+++ b/tools/builtInChips/Or8Way.class
diff --git a/tools/builtInChips/Or8Way.hdl b/tools/builtInChips/Or8Way.hdl
new file mode 100644
index 0000000..dccd61d
--- /dev/null
+++ b/tools/builtInChips/Or8Way.hdl
@@ -0,0 +1,16 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/Or8Way.hdl

+


+/**

+ * 8-way Or gate: out = in[0] or in[1] or ... or in[7].

+ */

+

+CHIP Or8Way {

+

+    IN  in[8];

+    OUT out;

+

+    BUILTIN Or8Way;

+}

diff --git a/tools/builtInChips/PC.class b/tools/builtInChips/PC.class
new file mode 100644
index 0000000..1e6ada1
--- /dev/null
+++ b/tools/builtInChips/PC.class
diff --git a/tools/builtInChips/PC.hdl b/tools/builtInChips/PC.hdl
new file mode 100644
index 0000000..f102d99
--- /dev/null
+++ b/tools/builtInChips/PC.hdl
@@ -0,0 +1,22 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/PC.hdl

+

+/**

+ * 16-bit counter with load and reset controls.

+ *

+ * If reset(t-1) then out(t) = 0

+ *    else if load(t-1) then out(t) = in(t-1)

+ *         else if inc(t-1) then out(t) = out(t-1) + 1 (integer addition)

+ *              else out(t) = out(t-1)

+ */

+

+CHIP PC {

+

+    IN  in[16], load, inc, reset;

+    OUT out[16];

+

+    BUILTIN PC;

+    CLOCKED in, load, inc, reset;

+}

diff --git a/tools/builtInChips/RAM.class b/tools/builtInChips/RAM.class
new file mode 100644
index 0000000..e17050f
--- /dev/null
+++ b/tools/builtInChips/RAM.class
diff --git a/tools/builtInChips/RAM16K.class b/tools/builtInChips/RAM16K.class
new file mode 100644
index 0000000..2f1e3fe
--- /dev/null
+++ b/tools/builtInChips/RAM16K.class
diff --git a/tools/builtInChips/RAM16K.hdl b/tools/builtInChips/RAM16K.hdl
new file mode 100644
index 0000000..7031bf9
--- /dev/null
+++ b/tools/builtInChips/RAM16K.hdl
@@ -0,0 +1,24 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/RAM16K.hdl

+

+/**

+ * Memory of 16K registers, each 16-bit wide.  

+ * The chip facilitates read and write operations, as follows:

+ *     Read:  out(t) = RAM16K[address(t)](t)

+ *     Write: If load(t-1) then RAM16K[address(t-1)](t) = in(t-1)

+ * In words: the chip always outputs the value stored at the memory 

+ * location specified by address. If load=1, the in value is loaded 

+ * into the memory location specified by address.  This value becomes 

+ * available through the out output starting from the next time step.

+ */

+

+CHIP RAM16K {

+

+    IN  in[16], load, address[14];

+    OUT out[16];

+

+    BUILTIN RAM16K;

+    CLOCKED in, load;

+}

diff --git a/tools/builtInChips/RAM4K.class b/tools/builtInChips/RAM4K.class
new file mode 100644
index 0000000..164ebf8
--- /dev/null
+++ b/tools/builtInChips/RAM4K.class
diff --git a/tools/builtInChips/RAM4K.hdl b/tools/builtInChips/RAM4K.hdl
new file mode 100644
index 0000000..8f1b211
--- /dev/null
+++ b/tools/builtInChips/RAM4K.hdl
@@ -0,0 +1,24 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/RAM4K.hdl

+

+/**

+ * Memory of 4K registers, each 16-bit wide.  

+ * The chip facilitates read and write operations, as follows:

+ *     Read:  out(t) = RAM4K[address(t)](t)

+ *     Write: If load(t-1) then RAM4K[address(t-1)](t) = in(t-1)

+ * In words: the chip always outputs the value stored at the memory 

+ * location specified by address. If load == 1, the in value is loaded 

+ * into the memory location specified by address.  This value becomes 

+ * available through the out output starting from the next time step.

+ */

+

+CHIP RAM4K {

+

+    IN  in[16], load, address[12];

+    OUT out[16];

+

+    BUILTIN RAM4K;

+    CLOCKED in, load;

+}

diff --git a/tools/builtInChips/RAM512.class b/tools/builtInChips/RAM512.class
new file mode 100644
index 0000000..69bff7a
--- /dev/null
+++ b/tools/builtInChips/RAM512.class
diff --git a/tools/builtInChips/RAM512.hdl b/tools/builtInChips/RAM512.hdl
new file mode 100644
index 0000000..2a2f433
--- /dev/null
+++ b/tools/builtInChips/RAM512.hdl
@@ -0,0 +1,24 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/RAM512.hdl

+

+/**

+ * Memory of 512 registers, each 16-bit wide.  

+ * The chip facilitates read and write operations, as follows:

+ *     Read:  out(t) = RAM512[address(t)](t)

+ *     Write: If load(t-1) then RAM512[address(t-1)](t) = in(t-1)

+ * In words: the chip always outputs the value stored at the memory 

+ * location specified by address. If load == 1, the in value is loaded 

+ * into the memory location specified by address.  This value becomes 

+ * available through the out output starting from the next time step.

+ */

+

+CHIP RAM512 {

+

+    IN  in[16], load, address[9];

+    OUT out[16];

+

+    BUILTIN RAM512;

+    CLOCKED in, load;

+}

diff --git a/tools/builtInChips/RAM64.class b/tools/builtInChips/RAM64.class
new file mode 100644
index 0000000..a1fe78a
--- /dev/null
+++ b/tools/builtInChips/RAM64.class
diff --git a/tools/builtInChips/RAM64.hdl b/tools/builtInChips/RAM64.hdl
new file mode 100644
index 0000000..6f32f47
--- /dev/null
+++ b/tools/builtInChips/RAM64.hdl
@@ -0,0 +1,24 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/RAM64.hdl

+

+/**

+ * Memory of 64 registers, each 16-bit wide.  

+ * The chip facilitates read and write operations, as follows:

+ *     Read:  out(t) = RAM64[address(t)](t)

+ *     Write: If load(t-1) then RAM64[address(t-1)](t) = in(t-1)

+ * In words: the chip always outputs the value stored at the memory 

+ * location specified by address. If load == 1, the in value is loaded 

+ * into the memory location specified by address.  This value becomes 

+ * available through the out output starting from the next time step.

+ */

+

+CHIP RAM64 {

+

+    IN in[16], load, address[6];

+    OUT out[16];

+

+    BUILTIN RAM64;

+    CLOCKED in, load;

+}

diff --git a/tools/builtInChips/RAM8.class b/tools/builtInChips/RAM8.class
new file mode 100644
index 0000000..88f106e
--- /dev/null
+++ b/tools/builtInChips/RAM8.class
diff --git a/tools/builtInChips/RAM8.hdl b/tools/builtInChips/RAM8.hdl
new file mode 100644
index 0000000..c08d62c
--- /dev/null
+++ b/tools/builtInChips/RAM8.hdl
@@ -0,0 +1,24 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/RAM8.hdl

+

+/**

+ * Memory of 8 registers, each 16-bit wide.  

+ * The chip facilitates read and write operations, as follows:

+ *     Read:  out(t) = RAM8[address(t)](t)

+ *     Write: If load(t-1) then RAM8[address(t-1)](t) = in(t-1)

+ * In words: the chip always outputs the value stored at the memory 

+ * location specified by address. If load == 1, the in value is loaded 

+ * into the memory location specified by address.  This value becomes 

+ * available through the out output starting from the next time step.

+ */

+

+CHIP RAM8 {

+

+    IN  in[16], load, address[3];

+    OUT out[16];

+

+    BUILTIN RAM8;

+    CLOCKED in, load;

+}

diff --git a/tools/builtInChips/ROM32K.class b/tools/builtInChips/ROM32K.class
new file mode 100644
index 0000000..c4320d8
--- /dev/null
+++ b/tools/builtInChips/ROM32K.class
diff --git a/tools/builtInChips/ROM32K.hdl b/tools/builtInChips/ROM32K.hdl
new file mode 100644
index 0000000..929f824
--- /dev/null
+++ b/tools/builtInChips/ROM32K.hdl
@@ -0,0 +1,30 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/ROM32K.hdl

+

+/**

+ * Read-Only memory (ROM) of 16K registers, each 16-bit wide.

+ * The chip is designed to facilitate data read, as follows:

+ *     out(t) = ROM32K[address(t)](t)

+ * In words: the chip always outputs the value stored at the 

+ * memory location specified by address.

+ *

+ * The built-in chip implementation has a GUI side-effect, 

+ * showing an array-like component that displays the ROM's 

+ * contents. The ROM32K chip is supposed to be pre-loaded with 

+ * a machine language program. To that end, the built-in chip

+ * implementation also knows how to handle the "ROM32K load Xxx"

+ * script command, where Xxx is the name of a text file containing 

+ * a program written in the Hack machine language.  When the 

+ * simulator encounters such a command in a test script, the code 

+ * found in the file is loaded into the simulated ROM32K unit.

+ */

+

+CHIP ROM32K {

+

+    IN  address[15];

+    OUT out[16];

+

+    BUILTIN ROM32K;

+}

diff --git a/tools/builtInChips/Register.class b/tools/builtInChips/Register.class
new file mode 100644
index 0000000..3958fcd
--- /dev/null
+++ b/tools/builtInChips/Register.class
diff --git a/tools/builtInChips/Register.hdl b/tools/builtInChips/Register.hdl
new file mode 100644
index 0000000..3b81e46
--- /dev/null
+++ b/tools/builtInChips/Register.hdl
@@ -0,0 +1,19 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/Register.hdl

+

+/**

+ * 16-Bit register. 

+ * If load[t-1]=1 then out[t] = in[t-1]

+ * else out does not change (out[t] = out[t-1])

+ */

+

+CHIP Register {

+

+    IN  in[16], load;

+    OUT out[16];

+

+    BUILTIN Register;

+    CLOCKED in, load;

+}

diff --git a/tools/builtInChips/RegisterWithGUI.class b/tools/builtInChips/RegisterWithGUI.class
new file mode 100644
index 0000000..c80208c
--- /dev/null
+++ b/tools/builtInChips/RegisterWithGUI.class
diff --git a/tools/builtInChips/Screen.class b/tools/builtInChips/Screen.class
new file mode 100644
index 0000000..100ed03
--- /dev/null
+++ b/tools/builtInChips/Screen.class
diff --git a/tools/builtInChips/Screen.hdl b/tools/builtInChips/Screen.hdl
new file mode 100644
index 0000000..5e7837b
--- /dev/null
+++ b/tools/builtInChips/Screen.hdl
@@ -0,0 +1,35 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/Screen.hdl

+

+/**

+ * The Screen (memory map).

+ * Functions exactly like a 16-bit 8K RAM:

+ *    1. out(t)=Screen[address(t)](t)

+ *    2. If load(t-1) then Screen[address(t-1)](t)=in(t-1)

+ *

+ * The built-in chip implementation has the side effect of continuously 

+ * refreshing a visual 256 by 512 black-and-white screen, simulated 

+ * by the simulator. Each row in the visual screen is represented 

+ * by 32 consecutive 16-bit words, starting at the top left corner 

+ * of the visual screen. Thus the pixel at row r from the top and 

+ * column c from the left (0<=r<=255, 0<=c<=511) reflects the c%16 

+ * bit (counting from LSB to MSB) of the word found in 

+ * Screen[r*32+c/16]. 

+ */

+

+CHIP Screen {

+

+    IN  in[16],    // what to write

+    load,          // write-enable bit

+    address[13];   // where to read/write

+    OUT out[16];   // Screen value at the given address

+

+    BUILTIN Screen;

+    CLOCKED in, load;

+}

+

+

+

+ 
\ No newline at end of file
diff --git a/tools/builtInChips/Xor.class b/tools/builtInChips/Xor.class
new file mode 100644
index 0000000..d99ad18
--- /dev/null
+++ b/tools/builtInChips/Xor.class
diff --git a/tools/builtInChips/Xor.hdl b/tools/builtInChips/Xor.hdl
new file mode 100644
index 0000000..8452d73
--- /dev/null
+++ b/tools/builtInChips/Xor.hdl
@@ -0,0 +1,16 @@
+// This file is part of www.nand2tetris.org

+// and the book "The Elements of Computing Systems"

+// by Nisan and Schocken, MIT Press.

+// File name: tools/builtIn/Xor.hdl

+

+/**

+ *  Exclusive-or gate: out = !(a == b).

+ */

+

+CHIP Xor {

+

+    IN  a, b;

+    OUT out;

+

+    BUILTIN Xor;

+}

diff --git a/tools/builtInVMCode/Array.class b/tools/builtInVMCode/Array.class
new file mode 100644
index 0000000..c76b652
--- /dev/null
+++ b/tools/builtInVMCode/Array.class
diff --git a/tools/builtInVMCode/JackOSClass.class b/tools/builtInVMCode/JackOSClass.class
new file mode 100644
index 0000000..25df72a
--- /dev/null
+++ b/tools/builtInVMCode/JackOSClass.class
diff --git a/tools/builtInVMCode/Keyboard.class b/tools/builtInVMCode/Keyboard.class
new file mode 100644
index 0000000..7366f75
--- /dev/null
+++ b/tools/builtInVMCode/Keyboard.class
diff --git a/tools/builtInVMCode/Math.class b/tools/builtInVMCode/Math.class
new file mode 100644
index 0000000..71aef91
--- /dev/null
+++ b/tools/builtInVMCode/Math.class
diff --git a/tools/builtInVMCode/Memory.class b/tools/builtInVMCode/Memory.class
new file mode 100644
index 0000000..e9bb7ad
--- /dev/null
+++ b/tools/builtInVMCode/Memory.class
diff --git a/tools/builtInVMCode/Output.class b/tools/builtInVMCode/Output.class
new file mode 100644
index 0000000..65b25b7
--- /dev/null
+++ b/tools/builtInVMCode/Output.class
diff --git a/tools/builtInVMCode/Screen.class b/tools/builtInVMCode/Screen.class
new file mode 100644
index 0000000..8644e09
--- /dev/null
+++ b/tools/builtInVMCode/Screen.class
diff --git a/tools/builtInVMCode/String.class b/tools/builtInVMCode/String.class
new file mode 100644
index 0000000..98c7f58
--- /dev/null
+++ b/tools/builtInVMCode/String.class
diff --git a/tools/builtInVMCode/Sys.class b/tools/builtInVMCode/Sys.class
new file mode 100644
index 0000000..0c15f1b
--- /dev/null
+++ b/tools/builtInVMCode/Sys.class