Loader seem to work, be seem we have a problem with jalr

src/simulator/loader.rs

@@ -59,7 +59,7 @@ pub fn load(path: &str, machine: &mut Machine, start_index: usize) -> Result<(),
     for i in 0..instructions.len() {
         machine.write_memory(4, 4 * i + start_index, instructions[i] as u64);
     }
-    #[cfg(debug_assertions)]
-    println!("{:04x?}", instructions); // only print loaded program in debug build
+    // #[cfg(debug_assertions)]
+    // println!("{:04x?}", instructions); // only print loaded program in debug build
     Ok(())
 }

src/simulator/machine.rs

@@ -240,7 +240,7 @@ impl Machine {
 		let val = u32::from_be_bytes(val) as u64;
 		let inst : Instruction = decode(val);
 		self.print_status();
-		println!("executing instruction : {:016x} at pc {:x}", val, self.pc);
+		println!("executing instruction : {:016x} at pc 0x{:x}", val, self.pc);
 		println!("{}", print::print(decode(val), self.pc as i32));
 		let trace = Self::string_registers(self);
 		self.registers_trace.push_str(format!("{}\n", trace).as_str());