added v2.0

07_Operating_System/05_Array_Test/Array.jack

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+../Array.jack

07_Operating_System/05_Array_Test/ArrayTest.cmp

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+|RAM[8000]|RAM[8001]|RAM[8002]|RAM[8003]|
+|     222 |     122 |     100 |      10 |

07_Operating_System/05_Array_Test/ArrayTest.tst

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+// 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/ArrayTest/ArrayTest.tst
+
+load,
+output-file ArrayTest.out,
+compare-to ArrayTest.cmp,
+output-list RAM[8000]%D2.6.1 RAM[8001]%D2.6.1 RAM[8002]%D2.6.1 RAM[8003]%D2.6.1;
+
+repeat 1000000 {
+  vmstep;
+}
+
+output;

07_Operating_System/05_Array_Test/GPIO.jack

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+../GPIO.jack

07_Operating_System/05_Array_Test/Main.jack

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+// 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/ArrayTest/Main.jack
+
+/** Test program for the OS Array class. */
+class Main {
+
+    /** Performs several Array manipulations. */
+    function void main() {
+        var Array r;                  // stores test results
+        var Array a, b, c;
+        
+        let r = 4107;
+        
+        let a = Array.new(3);
+        let a[2] = 222;
+        let r[0] = a[2];              // RAM[4107] = 222
+        
+        let b = Array.new(3);
+        let b[1] = a[2] - 100;
+        let r[1] = b[1];              // RAM[4108] = 122
+        
+        let c = Array.new(500);
+        let c[499] = a[2] - b[1];
+        let r[2] = c[499];            // RAM[4109] = 100
+        
+        do a.dispose();
+        do b.dispose();
+        
+        let b = Array.new(3);
+        let b[0] = c[499] - 90;
+        let r[3] = b[0];              // RAM[4110] = 10
+        
+        do c.dispose();
+        do b.dispose();
+        
+        return;
+    }
+}

07_Operating_System/05_Array_Test/Makefile

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+all: jack vm asm bin sim
+
+jack:
+	../../tools/JackCompiler/JackCompiler.pyc ./
+vm:
+	../../tools/VMTranslator/VMTranslator.pyc ./
+asm:
+	../../tools/Assembler/assembler.pyc out.asm
+bin:
+	../../tools/AsciiToBin.py out.hack
+sim:
+	cp out.hack ../00_HACK/ROM.hack
+upload:
+	iceprogduino -o 64k -w out.bin
+clean:
+	rm -f *.vm *.asm *.hack *.bin *~
+
+.PHONY: all clean

07_Operating_System/05_Array_Test/Memory.jack

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+../Memory.jack

07_Operating_System/05_Array_Test/Readme.md

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+## Array.jack
+
+Represents an array.
+In the Jack language, arrays are instances of the Array class. Once declared, the array entries can be accessed using the usual syntax arr[i]. Each array entry can hold a primitive data type as well as any object type. Different array entries can have different data types.
+
+***
+
+### Project
+
+* Implement `Array.jack`
+
+* Test in simulation:
+  
+  ```
+  $ cd 05_Array_Test
+  $ make
+  $ cd ../00_HACK
+  $ apio clean
+  $ apio sim
+  ```
+
+* Check the content of special function register DEBUG0--DEBUG4.
+  
+  ![](array.png)

07_Operating_System/05_Array_Test/Readme.md.backup

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+## Array.jack
+Represents an array.
+In the Jack language, arrays are instances of the Array class. Once declared, the array entries can be accessed using the usual syntax arr[i]. Each array entry can hold a primitive data type as well as any object type. Different array entries can have different data types.
+
+### function Array new(int size)
+Constructs a new Array of the given size.
+
+        if (~(size>0)){
+            do Sys.error(3);
+        }
+        return Memory.alloc(size);
+    }
+
+    /** Disposes this array. */
+    method void dispose() {
+        do Memory.deAlloc(this);
+***
+## Project
+* Implement `Array.jack`
+* Test in simulation:
+```
+$ cd 05_Array_Test
+$ make
+$ cd ../00_HACK
+$ apio clean
+$ apio sim
+```
+
+* Check the content of special function register DEBUG0--DEBUG4.
+
+![](array.png)

07_Operating_System/05_Array_Test/Sys.jack

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+../Sys.jack

07_Operating_System/05_Array_Test/UART.jack

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+../UART.jack