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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/MemoryTest/Main.jack
-
-/** Test program for the OS Memory class. */
-class Main {
-
- /** Performs various memory manipulations. */
- function void main() {
- var int temp;
- var Array a, b, c;
-
- do Memory.poke(8000, 333); // RAM[8000] = 333
- let temp = Memory.peek(8000);
- do Memory.poke(8001, temp + 1); // RAM[8001] = 334
-
- let a = Array.new(3); // uses Memory.alloc
- let a[2] = 222;
- do Memory.poke(8002, a[2]); // RAM[8002] = 222
-
- let b = Array.new(3);
- let b[1] = a[2] - 100;
- do Memory.poke(8003, b[1]); // RAM[8003] = 122
-
- let c = Array.new(500);
- let c[499] = a[2] - b[1];
- do Memory.poke(8004, c[499]); // RAM[8004] = 100
-
- do a.dispose(); // uses Memory.deAlloc
- do b.dispose();
-
- let b = Array.new(3);
- let b[0] = c[499] - 90;
- do Memory.poke(8005, b[0]); // RAM[8005] = 10
-
- do c.dispose();
- do b.dispose();
-
- return;
- }
-}