Added very bad screen & readme

src/main.rs

@@ -1,9 +1,12 @@
 #![allow(dead_code)]
 use core::panic;
+use minifb::{Key, Window, WindowOptions};
 use std::{
     collections::HashMap,
+    fmt::write,
     fs::{self, File},
     io::Read,
+    mem,
     path::PathBuf,
     thread::sleep,
     time::Duration,
@@ -3442,7 +3445,7 @@ fn main() {
         Ok(()) => {}
     };
     let binary = match fs::File::open(PathBuf::from(
-        "/Users/kline/projects/winter/georgeemu/src/george",
+        "/Users/kline/projects/winter/george-emu/src/george",
     )) {
         Ok(file) => file,
         Err(error) => panic!("Couldn't open binary file! {:?}", error),
@@ -3451,10 +3454,37 @@ fn main() {
         Err(error) => println!("{:?}", error),
         Ok(_) => {}
     };
-    let mut cpu = Cpu::new(memory);
-    match cpu.reset() {
-        Err(error) => println!("{error:?}"),
-        Ok(()) => {}
+    for i in 0x6000..0xBF00 {
+        if i > 0 && i < 0x9000 {
+            memory.write(i, 0x01).unwrap();
+        } else {
+            memory.write(i, 0x22).unwrap();
+        }
     }
+    let bitmask = [128, 64, 32, 16, 8, 4, 2, 1];
+    // let bitmask = [1, 2, 4, 8, 16, 32, 64, 128];
+    let mut buffer: Vec<u32> = vec![0; 512 * 380];
+    let mut window = match Window::new("george", 512, 380, WindowOptions::default()) {
+        Ok(win) => win,
+        Err(error) => {
+            println!("unable to create window {}", error);
+            return;
+        }
+    };
+    while window.is_open() && !window.is_key_down(Key::Escape) {
+        for addr in 0x6000..0xBF00 {
+            let byte = memory.read(addr).unwrap();
+            for i in 0..8 {
+                match byte & bitmask[i] == 0 {
+                    true => continue,
+                    false => buffer[(addr - 0x6000) as usize * 8 + i] = 0xFFFFFF,
+                }
+            }
+        }
+        window.update_with_buffer(&buffer, 512, 380).unwrap();
+    }
+    let mut cpu = Cpu::new(memory);
+    cpu.reset().unwrap();
+    window.limit_update_rate(Some(std::time::Duration::from_micros(16600)));
     cpu.execute();
 }