made functions and stuff for memory

src/mem.rs

@@ -0,0 +1,22 @@
+#![allow(dead_code)]
+
+pub const MEM_SIZE: usize = u16::MAX as usize;
+
+pub struct Memory {
+	data: [u16; MEM_SIZE],
+}
+
+impl Memory {
+	pub fn new() -> Memory {
+	  Memory {
+			data: [0; MEM_SIZE],
+		}  
+	}
+	pub fn set(&mut self, addr: u16, value: u16) {
+		self.data[addr as usize] = value;
+	}
+
+	pub fn get(&mut self, addr: u16) {
+		self.data[addr as usize];
+	}
+}