rearranged the dir for github

- removed tools and pdfs
- rearranged the projects dirs
- added md files
- other minor changes

4 files changed, 0 insertions, 437 deletions

diff --git a/projects/12/SysTest/Main.jack b/projects/12/SysTest/Main.jack
deleted file mode 100644
index a153b25..0000000
--- a/projects/12/SysTest/Main.jack
+++ /dev/null
@@ -1,31 +0,0 @@
-// This file is part of www.nand2tetris.org

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

-// by Nisan and Schocken, MIT Press.

-// File name: projects/12/SysTest/Main.jack

-

-/** Test program for the OS Sys class. */

-class Main {

-

-    /** Tests the wait method of the Sys class. */

-    function void main() {

-        var char key;

-

-        do Output.printString("Wait test:");

-        do Output.println();

-        do Output.printString("Press any key. After 2 seconds, another message will be printed:");

-

-        while (key = 0) {

-	        let key = Keyboard.keyPressed();

-        }

-        while (~(key = 0)) {

-            let key = Keyboard.keyPressed();

-        }

-        

-        do Sys.wait(2000);

-

-        do Output.println();

-        do Output.printString("Time is up. Make sure that 2 seconds elapsed.");

-        

-        return;

-    }

-}

diff --git a/projects/12/SysTest/Main.vm b/projects/12/SysTest/Main.vm
deleted file mode 100644
index 4890e2f..0000000
--- a/projects/12/SysTest/Main.vm
+++ /dev/null
@@ -1,281 +0,0 @@
-function Main.main 1
-push constant 10
-call String.new 1
-push constant 87
-call String.appendChar 2
-push constant 97
-call String.appendChar 2
-push constant 105
-call String.appendChar 2
-push constant 116
-call String.appendChar 2
-push constant 32
-call String.appendChar 2
-push constant 116
-call String.appendChar 2
-push constant 101
-call String.appendChar 2
-push constant 115
-call String.appendChar 2
-push constant 116
-call String.appendChar 2
-push constant 58
-call String.appendChar 2
-call Output.printString 1
-pop temp 0
-call Output.println 0
-pop temp 0
-push constant 64
-call String.new 1
-push constant 80
-call String.appendChar 2
-push constant 114
-call String.appendChar 2
-push constant 101
-call String.appendChar 2
-push constant 115
-call String.appendChar 2
-push constant 115
-call String.appendChar 2
-push constant 32
-call String.appendChar 2
-push constant 97
-call String.appendChar 2
-push constant 110
-call String.appendChar 2
-push constant 121
-call String.appendChar 2
-push constant 32
-call String.appendChar 2
-push constant 107
-call String.appendChar 2
-push constant 101
-call String.appendChar 2
-push constant 121
-call String.appendChar 2
-push constant 46
-call String.appendChar 2
-push constant 32
-call String.appendChar 2
-push constant 65
-call String.appendChar 2
-push constant 102
-call String.appendChar 2
-push constant 116
-call String.appendChar 2
-push constant 101
-call String.appendChar 2
-push constant 114
-call String.appendChar 2
-push constant 32
-call String.appendChar 2
-push constant 50
-call String.appendChar 2
-push constant 32
-call String.appendChar 2
-push constant 115
-call String.appendChar 2
-push constant 101
-call String.appendChar 2
-push constant 99
-call String.appendChar 2
-push constant 111
-call String.appendChar 2
-push constant 110
-call String.appendChar 2
-push constant 100
-call String.appendChar 2
-push constant 115
-call String.appendChar 2
-push constant 44
-call String.appendChar 2
-push constant 32
-call String.appendChar 2
-push constant 97
-call String.appendChar 2
-push constant 110
-call String.appendChar 2
-push constant 111
-call String.appendChar 2
-push constant 116
-call String.appendChar 2
-push constant 104
-call String.appendChar 2
-push constant 101
-call String.appendChar 2
-push constant 114
-call String.appendChar 2
-push constant 32
-call String.appendChar 2
-push constant 109
-call String.appendChar 2
-push constant 101
-call String.appendChar 2
-push constant 115
-call String.appendChar 2
-push constant 115
-call String.appendChar 2
-push constant 97
-call String.appendChar 2
-push constant 103
-call String.appendChar 2
-push constant 101
-call String.appendChar 2
-push constant 32
-call String.appendChar 2
-push constant 119
-call String.appendChar 2
-push constant 105
-call String.appendChar 2
-push constant 108
-call String.appendChar 2
-push constant 108
-call String.appendChar 2
-push constant 32
-call String.appendChar 2
-push constant 98
-call String.appendChar 2
-push constant 101
-call String.appendChar 2
-push constant 32
-call String.appendChar 2
-push constant 112
-call String.appendChar 2
-push constant 114
-call String.appendChar 2
-push constant 105
-call String.appendChar 2
-push constant 110
-call String.appendChar 2
-push constant 116
-call String.appendChar 2
-push constant 101
-call String.appendChar 2
-push constant 100
-call String.appendChar 2
-push constant 58
-call String.appendChar 2
-call Output.printString 1
-pop temp 0
-label WHILE_EXP0
-push local 0
-push constant 0
-eq
-not
-if-goto WHILE_END0
-call Keyboard.keyPressed 0
-pop local 0
-goto WHILE_EXP0
-label WHILE_END0
-label WHILE_EXP1
-push local 0
-push constant 0
-eq
-not
-not
-if-goto WHILE_END1
-call Keyboard.keyPressed 0
-pop local 0
-goto WHILE_EXP1
-label WHILE_END1
-push constant 2000
-call Sys.wait 1
-pop temp 0
-call Output.println 0
-pop temp 0
-push constant 45
-call String.new 1
-push constant 84
-call String.appendChar 2
-push constant 105
-call String.appendChar 2
-push constant 109
-call String.appendChar 2
-push constant 101
-call String.appendChar 2
-push constant 32
-call String.appendChar 2
-push constant 105
-call String.appendChar 2
-push constant 115
-call String.appendChar 2
-push constant 32
-call String.appendChar 2
-push constant 117
-call String.appendChar 2
-push constant 112
-call String.appendChar 2
-push constant 46
-call String.appendChar 2
-push constant 32
-call String.appendChar 2
-push constant 77
-call String.appendChar 2
-push constant 97
-call String.appendChar 2
-push constant 107
-call String.appendChar 2
-push constant 101
-call String.appendChar 2
-push constant 32
-call String.appendChar 2
-push constant 115
-call String.appendChar 2
-push constant 117
-call String.appendChar 2
-push constant 114
-call String.appendChar 2
-push constant 101
-call String.appendChar 2
-push constant 32
-call String.appendChar 2
-push constant 116
-call String.appendChar 2
-push constant 104
-call String.appendChar 2
-push constant 97
-call String.appendChar 2
-push constant 116
-call String.appendChar 2
-push constant 32
-call String.appendChar 2
-push constant 50
-call String.appendChar 2
-push constant 32
-call String.appendChar 2
-push constant 115
-call String.appendChar 2
-push constant 101
-call String.appendChar 2
-push constant 99
-call String.appendChar 2
-push constant 111
-call String.appendChar 2
-push constant 110
-call String.appendChar 2
-push constant 100
-call String.appendChar 2
-push constant 115
-call String.appendChar 2
-push constant 32
-call String.appendChar 2
-push constant 101
-call String.appendChar 2
-push constant 108
-call String.appendChar 2
-push constant 97
-call String.appendChar 2
-push constant 112
-call String.appendChar 2
-push constant 115
-call String.appendChar 2
-push constant 101
-call String.appendChar 2
-push constant 100
-call String.appendChar 2
-push constant 46
-call String.appendChar 2
-call Output.printString 1
-pop temp 0
-push constant 0
-return
diff --git a/projects/12/SysTest/Sys.jack b/projects/12/SysTest/Sys.jack
deleted file mode 100644
index 53c078c..0000000
--- a/projects/12/SysTest/Sys.jack
+++ /dev/null
@@ -1,51 +0,0 @@
-// This file is part of www.nand2tetris.org

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

-// by Nisan and Schocken, MIT Press.

-// File name: projects/12/Sys.jack

-

-/**

- * A library that supports various program execution services.

- */

-class Sys {

-

-    /** Performs all the initializations required by the OS. */

-    function void init() {

-        do Keyboard.init();

-        do Math.init();

-        do Memory.init();

-        do Output.init();

-        do Screen.init();

-        do Main.main();

-        do Sys.halt();

-        return;

-    }

-

-    /** Halts the program execution. */

-    function void halt() {

-        while (true){

-        }

-        return;

-    }

-

-    /** Waits approximately duration milliseconds and returns.  */

-    function void wait(int duration) {

-        var int i, j;

-        let i = 0;

-        while (i < duration){

-            let i = i + 1;

-            let j = 0;

-            while (j < 318){

-                let j = j + 1;

-            }

-        }

-        return;

-    }

-

-    /** Displays the given error code in the form "ERR<errorCode>",

-     *  and halts the program's execution. */

-    function void error(int errorCode) {

-        do Output.printString("ERR");

-        do Output.printInt(errorCode);

-        return;

-    }

-}

diff --git a/projects/12/SysTest/Sys.vm b/projects/12/SysTest/Sys.vm
deleted file mode 100644
index fec2862..0000000
--- a/projects/12/SysTest/Sys.vm
+++ /dev/null
@@ -1,74 +0,0 @@
-function Sys.init 0
-call Keyboard.init 0
-pop temp 0
-call Math.init 0
-pop temp 0
-call Memory.init 0
-pop temp 0
-call Output.init 0
-pop temp 0
-call Screen.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 2
-push constant 0
-pop local 0
-label WHILE_EXP0
-push local 0
-push argument 0
-lt
-not
-if-goto WHILE_END0
-push local 0
-push constant 1
-add
-pop local 0
-push constant 0
-pop local 1
-label WHILE_EXP1
-push local 1
-push constant 318
-lt
-not
-if-goto WHILE_END1
-push local 1
-push constant 1
-add
-pop local 1
-goto WHILE_EXP1
-label WHILE_END1
-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
-push constant 0
-return