// 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/04/fill/FillAutomatic

// This script can be used to test the Fill program automatically, 
// rather than interactively. Specifically, the script sets the keyboard
// memory map (RAM[24576]) to 0, 1, and then again to 0. This simulates the 
// acts of leaving the keyboard untouched, pressing some key, and then releasing
// the key. After each on of these simulated events, the script outputs the values
// of some selected registers from the screen memory map (RAM[16384]-RAM[24576]).
// This is done in order to test that these registers are set to 000...0 or 111....1, 
// as mandated by how the Fill program should react to the keyboard events.

load Fill.hack,
output-file FillAutomatic.out,
compare-to FillAutomatic.cmp,
output-list RAM[16384]%D2.6.2 RAM[17648]%D2.6.2 RAM[18349]%D2.6.2 RAM[19444]%D2.6.2 RAM[20771]%D2.6.2 RAM[21031]%D2.6.2 RAM[22596]%D2.6.2 RAM[23754]%D2.6.2 RAM[24575]%D2.6.2;

set RAM[24576] 0,    // the keyboard is untouched
repeat 1000000 {
  ticktock;
}
output;              // test that the screen is white

set RAM[24576] 1,    // a keyboard key is pressed
repeat 1000000 {
  ticktock;
}
output;              // test that the screen is black

set RAM[24576] 0,    // they keyboard in untouched
repeat 1000000 {
  ticktock;
}
output;              // test that the screen is white