projects/12/ArrayTest/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 = 8000;
        
        let a = Array.new(3);
        let a[2] = 222;
        let r[0] = a[2];              // RAM[8000] = 222
        
        let b = Array.new(3);
        let b[1] = a[2] - 100;
        let r[1] = b[1];              // RAM[8001] = 122
        
        let c = Array.new(500);
        let c[499] = a[2] - b[1];
        let r[2] = c[499];            // RAM[8002] = 100
        
        do a.dispose();
        do b.dispose();
        
        let b = Array.new(3);
        let b[0] = c[499] - 90;
        let r[3] = b[0];              // RAM[8003] = 10
        
        do c.dispose();
        do b.dispose();
        
        return;
    }
}