rearranged the dir for github

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

6 files changed, 0 insertions, 685 deletions

diff --git a/projects/11/Square/Main.jack b/projects/11/Square/Main.jack
deleted file mode 100644
index 0753893..0000000
--- a/projects/11/Square/Main.jack
+++ /dev/null
@@ -1,17 +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/11/Square/Main.jack

-

-// (same as projects/09/Square/Main.jack)

-

-/** Initializes a new Square Dance game and starts running it. */

-class Main {

-    function void main() {

-        var SquareGame game;

-        let game = SquareGame.new();

-        do game.run();

-        do game.dispose();

-        return;

-    }

-}

diff --git a/projects/11/Square/Main.vm b/projects/11/Square/Main.vm
deleted file mode 100644
index a3b355b..0000000
--- a/projects/11/Square/Main.vm
+++ /dev/null
@@ -1,11 +0,0 @@
-function Main.main 1
-call SquareGame.new 0
-pop local 0
-push local 0
-call SquareGame.run 1
-pop temp 0
-push local 0
-call SquareGame.dispose 1
-pop temp 0
-push constant 0
-return
diff --git a/projects/11/Square/Square.jack b/projects/11/Square/Square.jack
deleted file mode 100644
index 5a92838..0000000
--- a/projects/11/Square/Square.jack
+++ /dev/null
@@ -1,110 +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/11/Square/Square.jack
-
-// (same as projects/09/Square/Square.jack)
-
-/** Implements a graphical square. */
-class Square {
-
-   field int x, y; // screen location of the square's top-left corner
-   field int size; // length of this square, in pixels
-
-   /** Constructs a new square with a given location and size. */
-   constructor Square new(int Ax, int Ay, int Asize) {
-      let x = Ax;
-      let y = Ay;
-      let size = Asize;
-      do draw();
-      return this;
-   }
-
-   /** Disposes this square. */
-   method void dispose() {
-      do Memory.deAlloc(this);
-      return;
-   }
-
-   /** Draws the square on the screen. */
-   method void draw() {
-      do Screen.setColor(true);
-      do Screen.drawRectangle(x, y, x + size, y + size);
-      return;
-   }
-
-   /** Erases the square from the screen. */
-   method void erase() {
-      do Screen.setColor(false);
-      do Screen.drawRectangle(x, y, x + size, y + size);
-      return;
-   }
-
-    /** Increments the square size by 2 pixels. */
-   method void incSize() {
-      if (((y + size) < 254) & ((x + size) < 510)) {
-         do erase();
-         let size = size + 2;
-         do draw();
-      }
-      return;
-   }
-
-   /** Decrements the square size by 2 pixels. */
-   method void decSize() {
-      if (size > 2) {
-         do erase();
-         let size = size - 2;
-         do draw();
-      }
-      return;
-   }
-
-   /** Moves the square up by 2 pixels. */
-   method void moveUp() {
-      if (y > 1) {
-         do Screen.setColor(false);
-         do Screen.drawRectangle(x, (y + size) - 1, x + size, y + size);
-         let y = y - 2;
-         do Screen.setColor(true);
-         do Screen.drawRectangle(x, y, x + size, y + 1);
-      }
-      return;
-   }
-
-   /** Moves the square down by 2 pixels. */
-   method void moveDown() {
-      if ((y + size) < 254) {
-         do Screen.setColor(false);
-         do Screen.drawRectangle(x, y, x + size, y + 1);
-         let y = y + 2;
-         do Screen.setColor(true);
-         do Screen.drawRectangle(x, (y + size) - 1, x + size, y + size);
-      }
-      return;
-   }
-
-   /** Moves the square left by 2 pixels. */
-   method void moveLeft() {
-      if (x > 1) {
-         do Screen.setColor(false);
-         do Screen.drawRectangle((x + size) - 1, y, x + size, y + size);
-         let x = x - 2;
-         do Screen.setColor(true);
-         do Screen.drawRectangle(x, y, x + 1, y + size);
-      }
-      return;
-   }
-
-   /** Moves the square right by 2 pixels. */
-   method void moveRight() {
-      if ((x + size) < 510) {
-         do Screen.setColor(false);
-         do Screen.drawRectangle(x, y, x + 1, y + size);
-         let x = x + 2;
-         do Screen.setColor(true);
-         do Screen.drawRectangle((x + size) - 1, y, x + size, y + size);
-      }
-      return;
-   }
-}
diff --git a/projects/11/Square/Square.vm b/projects/11/Square/Square.vm
deleted file mode 100644
index 871ccf7..0000000
--- a/projects/11/Square/Square.vm
+++ /dev/null
@@ -1,298 +0,0 @@
-function Square.new 0
-push constant 3
-call Memory.alloc 1
-pop pointer 0
-push argument 0
-pop this 0
-push argument 1
-pop this 1
-push argument 2
-pop this 2
-push pointer 0
-call Square.draw 1
-pop temp 0
-push pointer 0
-return
-function Square.dispose 0
-push argument 0
-pop pointer 0
-push pointer 0
-call Memory.deAlloc 1
-pop temp 0
-push constant 0
-return
-function Square.draw 0
-push argument 0
-pop pointer 0
-push constant 1
-neg
-call Screen.setColor 1
-pop temp 0
-push this 0
-push this 1
-push this 0
-push this 2
-add
-push this 1
-push this 2
-add
-call Screen.drawRectangle 4
-pop temp 0
-push constant 0
-return
-function Square.erase 0
-push argument 0
-pop pointer 0
-push constant 0
-call Screen.setColor 1
-pop temp 0
-push this 0
-push this 1
-push this 0
-push this 2
-add
-push this 1
-push this 2
-add
-call Screen.drawRectangle 4
-pop temp 0
-push constant 0
-return
-function Square.incSize 0
-push argument 0
-pop pointer 0
-push this 1
-push this 2
-add
-push constant 254
-lt
-push this 0
-push this 2
-add
-push constant 510
-lt
-and
-not
-if-goto incSize.Else0
-push pointer 0
-call Square.erase 1
-pop temp 0
-push this 2
-push constant 2
-add
-pop this 2
-push pointer 0
-call Square.draw 1
-pop temp 0
-label incSize.Else0
-push constant 0
-return
-function Square.decSize 0
-push argument 0
-pop pointer 0
-push this 2
-push constant 2
-gt
-not
-if-goto decSize.Else0
-push pointer 0
-call Square.erase 1
-pop temp 0
-push this 2
-push constant 2
-sub
-pop this 2
-push pointer 0
-call Square.draw 1
-pop temp 0
-label decSize.Else0
-push constant 0
-return
-function Square.moveUp 0
-push argument 0
-pop pointer 0
-push this 1
-push constant 1
-gt
-not
-if-goto moveUp.Else0
-push constant 0
-call Screen.setColor 1
-pop temp 0
-push this 0
-push this 1
-push this 2
-add
-push constant 1
-sub
-push this 0
-push this 2
-add
-push this 1
-push this 2
-add
-call Screen.drawRectangle 4
-pop temp 0
-push this 1
-push constant 2
-sub
-pop this 1
-push constant 1
-neg
-call Screen.setColor 1
-pop temp 0
-push this 0
-push this 1
-push this 0
-push this 2
-add
-push this 1
-push constant 1
-add
-call Screen.drawRectangle 4
-pop temp 0
-label moveUp.Else0
-push constant 0
-return
-function Square.moveDown 0
-push argument 0
-pop pointer 0
-push this 1
-push this 2
-add
-push constant 254
-lt
-not
-if-goto moveDown.Else0
-push constant 0
-call Screen.setColor 1
-pop temp 0
-push this 0
-push this 1
-push this 0
-push this 2
-add
-push this 1
-push constant 1
-add
-call Screen.drawRectangle 4
-pop temp 0
-push this 1
-push constant 2
-add
-pop this 1
-push constant 1
-neg
-call Screen.setColor 1
-pop temp 0
-push this 0
-push this 1
-push this 2
-add
-push constant 1
-sub
-push this 0
-push this 2
-add
-push this 1
-push this 2
-add
-call Screen.drawRectangle 4
-pop temp 0
-label moveDown.Else0
-push constant 0
-return
-function Square.moveLeft 0
-push argument 0
-pop pointer 0
-push this 0
-push constant 1
-gt
-not
-if-goto moveLeft.Else0
-push constant 0
-call Screen.setColor 1
-pop temp 0
-push this 0
-push this 2
-add
-push constant 1
-sub
-push this 1
-push this 0
-push this 2
-add
-push this 1
-push this 2
-add
-call Screen.drawRectangle 4
-pop temp 0
-push this 0
-push constant 2
-sub
-pop this 0
-push constant 1
-neg
-call Screen.setColor 1
-pop temp 0
-push this 0
-push this 1
-push this 0
-push constant 1
-add
-push this 1
-push this 2
-add
-call Screen.drawRectangle 4
-pop temp 0
-label moveLeft.Else0
-push constant 0
-return
-function Square.moveRight 0
-push argument 0
-pop pointer 0
-push this 0
-push this 2
-add
-push constant 510
-lt
-not
-if-goto moveRight.Else0
-push constant 0
-call Screen.setColor 1
-pop temp 0
-push this 0
-push this 1
-push this 0
-push constant 1
-add
-push this 1
-push this 2
-add
-call Screen.drawRectangle 4
-pop temp 0
-push this 0
-push constant 2
-add
-pop this 0
-push constant 1
-neg
-call Screen.setColor 1
-pop temp 0
-push this 0
-push this 2
-add
-push constant 1
-sub
-push this 1
-push this 0
-push this 2
-add
-push this 1
-push this 2
-add
-call Screen.drawRectangle 4
-pop temp 0
-label moveRight.Else0
-push constant 0
-return
diff --git a/projects/11/Square/SquareGame.jack b/projects/11/Square/SquareGame.jack
deleted file mode 100644
index 4fe7e39..0000000
--- a/projects/11/Square/SquareGame.jack
+++ /dev/null
@@ -1,81 +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/11/Square/SquareGame.jack

-

-// (same as projects/09/Square/SquareGame.jack)

-

-/**

- * Implements the Square Dance game.

- * This simple game allows the user to move a black square around

- * the screen, and change the square's size during the movement.

- * When the game starts, a square of 30 by 30 pixels is shown at the

- * top-left corner of the screen. The user controls the square as follows.

- * The 4 arrow keys are used to move the square up, down, left, and right.

- * The 'z' and 'x' keys are used, respectively, to decrement and increment

- * the square's size. The 'q' key is used to quit the game.

- */

-

-class SquareGame {

-   field Square square; // the square of this game

-   field int direction; // the square's current direction: 

-                        // 0=none, 1=up, 2=down, 3=left, 4=right

-

-   /** Constructs a new Square Game. */

-   constructor SquareGame new() {

-      // Creates a 30 by 30 pixels square and positions it at the top-left

-      // of the screen.

-      let square = Square.new(0, 0, 30);

-      let direction = 0;  // initial state is no movement

-      return this;

-   }

-

-   /** Disposes this game. */

-   method void dispose() {

-      do square.dispose();

-      do Memory.deAlloc(this);

-      return;

-   }

-

-   /** Moves the square in the current direction. */

-   method void moveSquare() {

-      if (direction = 1) { do square.moveUp(); }

-      if (direction = 2) { do square.moveDown(); }

-      if (direction = 3) { do square.moveLeft(); }

-      if (direction = 4) { do square.moveRight(); }

-      do Sys.wait(5);  // delays the next movement

-      return;

-   }

-

-   /** Runs the game: handles the user's inputs and moves the square accordingly */

-   method void run() {

-      var char key;  // the key currently pressed by the user

-      var boolean exit;

-      let exit = false;

-      

-      while (~exit) {

-         // waits for a key to be pressed

-         while (key = 0) {

-            let key = Keyboard.keyPressed();

-            do moveSquare();

-         }

-         if (key = 81)  { let exit = true; }     // q key

-         if (key = 90)  { do square.decSize(); } // z key

-         if (key = 88)  { do square.incSize(); } // x key

-         if (key = 131) { let direction = 1; }   // up arrow

-         if (key = 133) { let direction = 2; }   // down arrow

-         if (key = 130) { let direction = 3; }   // left arrow

-         if (key = 132) { let direction = 4; }   // right arrow

-

-         // waits for the key to be released

-         while (~(key = 0)) {

-            let key = Keyboard.keyPressed();

-            do moveSquare();

-         }

-     } // while

-     return;

-   }

-}

-

-

-

diff --git a/projects/11/Square/SquareGame.vm b/projects/11/Square/SquareGame.vm
deleted file mode 100644
index f2dd542..0000000
--- a/projects/11/Square/SquareGame.vm
+++ /dev/null
@@ -1,168 +0,0 @@
-function SquareGame.new 0
-push constant 2
-call Memory.alloc 1
-pop pointer 0
-push constant 0
-push constant 0
-push constant 30
-call Square.new 3
-pop this 0
-push constant 0
-pop this 1
-push pointer 0
-return
-function SquareGame.dispose 0
-push argument 0
-pop pointer 0
-push this 0
-call Square.dispose 1
-pop temp 0
-push pointer 0
-call Memory.deAlloc 1
-pop temp 0
-push constant 0
-return
-function SquareGame.moveSquare 0
-push argument 0
-pop pointer 0
-push this 1
-push constant 1
-eq
-not
-if-goto moveSquare.Else0
-push this 0
-call Square.moveUp 1
-pop temp 0
-label moveSquare.Else0
-push this 1
-push constant 2
-eq
-not
-if-goto moveSquare.Else1
-push this 0
-call Square.moveDown 1
-pop temp 0
-label moveSquare.Else1
-push this 1
-push constant 3
-eq
-not
-if-goto moveSquare.Else2
-push this 0
-call Square.moveLeft 1
-pop temp 0
-label moveSquare.Else2
-push this 1
-push constant 4
-eq
-not
-if-goto moveSquare.Else3
-push this 0
-call Square.moveRight 1
-pop temp 0
-label moveSquare.Else3
-push constant 5
-call Sys.wait 1
-pop temp 0
-push constant 0
-return
-function SquareGame.run 2
-push argument 0
-pop pointer 0
-push constant 0
-pop local 1
-label run.While0
-push local 1
-not
-not
-if-goto run.EndWhile0
-label run.While0.While0
-push local 0
-push constant 0
-eq
-not
-if-goto run.While0.EndWhile0
-call Keyboard.keyPressed 0
-pop local 0
-push pointer 0
-call SquareGame.moveSquare 1
-pop temp 0
-goto run.While0.While0
-label run.While0.EndWhile0
-push local 0
-push constant 81
-eq
-not
-if-goto run.While0.Else1
-push constant 1
-neg
-pop local 1
-label run.While0.Else1
-push local 0
-push constant 90
-eq
-not
-if-goto run.While0.Else2
-push this 0
-call Square.decSize 1
-pop temp 0
-label run.While0.Else2
-push local 0
-push constant 88
-eq
-not
-if-goto run.While0.Else3
-push this 0
-call Square.incSize 1
-pop temp 0
-label run.While0.Else3
-push local 0
-push constant 131
-eq
-not
-if-goto run.While0.Else4
-push constant 1
-pop this 1
-label run.While0.Else4
-push local 0
-push constant 133
-eq
-not
-if-goto run.While0.Else5
-push constant 2
-pop this 1
-label run.While0.Else5
-push local 0
-push constant 130
-eq
-not
-if-goto run.While0.Else6
-push constant 3
-pop this 1
-label run.While0.Else6
-push local 0
-push constant 132
-eq
-not
-if-goto run.While0.Else7
-push constant 4
-pop this 1
-label run.While0.Else7
-label run.While0.While8
-push local 0
-push constant 0
-eq
-not
-not
-if-goto run.While0.EndWhile8
-call Keyboard.keyPressed 0
-pop local 0
-push pointer 0
-call SquareGame.moveSquare 1
-pop temp 0
-goto run.While0.While8
-label run.While0.EndWhile8
-goto run.While0
-label run.EndWhile0
-push constant 0
-return