cool stuff for memory

Cargo.lock

@@ -4,4 +4,4 @@ version = 3
 
 [[package]]
 name = "celc8"
-version = "0.1.0"
+version = "0.1.1"

src/main.rs

@@ -22,15 +22,18 @@ impl Cpu {
 	fn regwrite(&mut self, index: usize, value: u8) {
 		self.registers[index] = value;
 	}
-	fn indread(&self) -> &u16 {
+	fn iread(&self) -> &u16 {
 		&self.i
 	}
-	fn indwrite(&mut self, value: u16) {
+	fn iwrite(&mut self, value: u16) {
 		self.i = value;
 	}
 	fn incrementpc(&mut self) {
 		self.pc = self.pc + 2
 	}
+	fn fetch(&mut self) -> u16 {
+		return ((self.memory[self.pc as usize] as u16) << 8 | self.memory[self.pc as usize + 1 as usize] as u16)
+	}
 }
 
 struct Instruction {
@@ -229,16 +232,14 @@ fn main() {
 	torture();
 	println!("If you see messages above that are about opcodes, there's a bug!");
 
-	println!("Executing LD_VX_BYTE with opcode 0x6010, register 0 should be 16.");
-	let mut opcode = 0x6010;
+	println!("Executing LD_VX_BYTE with opcode 0x6010 through memory.");
+	cpu.memory[0x200] = 0x60;
+	cpu.memory[0x201] = 0x10;
+	let mut opcode = cpu.fetch();
 	let mut instruction = disassemble(opcode);
 	cpu = execute(opcode, instruction, cpu);
 
 	println!("Register 0 is {}!", cpu.registers[0]);
-	println!("Executing CLS which is not implemented. There should be an unimplemented error.");
-	opcode = 0x00e0;
-	instruction = disassemble(opcode);
-	cpu = execute(opcode, instruction, cpu);
 }
 
 fn torture() {