registers

src/main.rs

@@ -1,22 +1,93 @@
 mod mem;
+use core::panic;
 use std::env;
 use std::fs;
 use std::io;
 use std::io::Read;
+use std::u16;
 
-fn main() {
-	let args: Vec<String> = env::args().collect();
-	let	path = args.get(1).expect("enter a file please!");
-	let file = fs::File::open(path).expect("couldnt open file");
-	let mut reader = io::BufReader::new(file);
-	let mut values = Vec::new();
-	let mut buffer:[u8;2] = [0;2];
-	while reader.read_exact(&mut buffer).is_ok() {
-		let instruction = u16::from_be_bytes(buffer);
-		values.push(instruction);
+struct Registers {
+	r0: u16,
+	r1: u16,
+	r2: u16,
+	r3: u16,
+	r4: u16,
+	r5: u16,
+	r6: u16,
+	r7: u16,
+	pc: u16,
+	cond: u16,
+}
+
+impl Registers {
+  fn new() -> Registers {
+    Registers {
+			r0: 0,
+			r1: 0,
+			r2: 0,
+			r3: 0,
+			r4: 0,
+			r5: 0,
+			r6: 0,
+			r7: 0,
+			pc: 0x300,
+			cond: 0,
 		}
-	println!("data: {:?}\n", values);
-	for data in values{
-		println!("hex data: {:#06X}", data);
+  }
+
+	// s/o dogeystamp for this cool register return logic
+	// most other vms just updated it with a &mut self
+
+	fn return_register(&mut self, num: u16) -> &mut u16 {
+		match num {
+			0 => &mut self.r0,
+			1 => &mut self.r1,
+			2 => &mut self.r2,
+			3 => &mut self.r3,
+			4 => &mut self.r4,
+			5 => &mut self.r5,
+			6 => &mut self.r6,
+			7 => &mut self.r7,
+			_ => panic!("not a register!"),
+		}
+	}
+	
+	fn get_register(&mut self, num: u16) -> u16 {
+		*self.return_register(num)
+	}
+
+	fn set_registers(&mut self, num : u16, value: u16) {
+		*self.return_register(num) = value;
 	}
 }
+
+
+
+
+
+fn main() {
+
+
+
+
+
+
+
+
+
+
+	// let args: Vec<String> = env::args().collect();
+	// let	path = args.get(1).expect("enter a file please!");
+	// let file = fs::File::open(path).expect("couldnt open file");
+	// let mut reader = io::BufReader::new(file);
+	// let mut values = Vec::new();
+	// let mut buffer:[u8;2] = [0;2];
+	// while reader.read_exact(&mut buffer).is_ok() {
+	// 	let instruction = u16::from_be_bytes(buffer);
+	// 	values.push(instruction);
+	// }
+	// println!("data: {:?}\n", values);
+	// for data in values{
+	// 	println!("hex data: {:#06X}", data);
+	// }
+}