Tidy up whitespaces

src/display.rs

@@ -10,7 +10,7 @@ impl Display {
 	let video = sdl_ctx.video().unwrap();
 	let window = video
 	    .window(
-		"FooBar",
+		"chip8-rs",
 		(crate::SCREEN_WIDTH * crate::SCREEN_SCALE) as u32,
 		(crate::SCREEN_HEIGHT * crate::SCREEN_SCALE) as u32)
             .position_centered()
@@ -30,7 +30,7 @@ impl Display {
 	Display {
 	    canvas,
 	}
-    }   
+    } 
 
     pub fn draw(&mut self, pixel: &[[u8; crate::SCREEN_WIDTH]; crate::SCREEN_HEIGHT]) {
 	for (y, &row) in pixel.iter().enumerate() {

src/fontset.rs

@@ -1,5 +1,5 @@
 pub (crate) const FONT: [u8; 80] = [
-    0xF0, 0x90, 0x90, 0x90, 0xF0, // 0 
+    0xF0, 0x90, 0x90, 0x90, 0xF0, // 0
     0x20, 0x60, 0x20, 0x20, 0x70, // 1
     0xF0, 0x10, 0xF0, 0x80, 0xF0, // 2
     0xF0, 0x10, 0xF0, 0x10, 0xF0, // 3

src/input.rs

@@ -19,7 +19,7 @@ impl Input {
                 return Err(());
             }
         }
-        
+
         // get all inputs
         let input: Vec<Keycode> = self.events
             .keyboard_state()

src/main.rs

@@ -34,5 +34,4 @@ fn main() {
     let cartridge = Cartridge::new(&game_file.unwrap());
 
     processor.start(&cartridge.rom);
-
 }

src/processor.rs

@@ -137,13 +137,13 @@ impl Processor {
 
 	// n or nibble - A 4-bit value, the lowest 4 bits of the instruction
 	let n = nibbles.3 as usize;
-	
+
 	// x - A 4-bit value, the lower 4 bits of the high byte of the instruction
 	let x = nibbles.1 as usize;
 
 	// y - A 4-bit value, the upper 4 bits of the low byte of the instruction
 	let y = nibbles.2 as usize;
-	
+
 	//kk or byte - An 8-bit value, the lowest 8 bits of the instruction
 	let kk = (opcode & 0x00FF) as u8;