scroll down works on CHIP-8 and High-Res modes

scroll left and right work in stdef and hidef
adds octo test roms
adds schip fonts to memory

gemma/src/chip8/computer_manager.rs

@@ -5,14 +5,12 @@ use std::time::{Duration, Instant};
 use crate::chip8::computer::Chip8Computer;
 use crate::chip8::cpu_states::Chip8CpuStates;
 use crate::chip8::cpu_states::Chip8CpuStates::WaitingForInstruction;
-
 pub enum ManagerDumpables {
     Video,
     Registers,
     Keyboard
 }
 
-
 pub struct Chip8ComputerManager {
     core_should_run: bool,
     one_step: bool,
@@ -76,7 +74,7 @@ impl Chip8ComputerManager {
                 WaitingForInstruction => {
                     self.core_last_cycle_start = Instant::now();
                     self.computer.step_system();
-                    println!("SYSTEM STEP");
+                 //   println!("SYSTEM STEP");
                 }
                 _ => {}
             }