telnet now will load the IBM logo and run through it.

gemma/src/chip8/computer_manager.rs

@@ -1,3 +1,6 @@
+use std::fs::File;
+use std::io::{BufReader, Read};
+use std::path::{Path, PathBuf};
 use crate::chip8::computer::Chip8Computer;
 use crate::chip8::cpu_states::Chip8CpuStates;
 use crate::chip8::cpu_states::Chip8CpuStates::WaitingForInstruction;
@@ -142,4 +145,26 @@ impl Chip8ComputerManager {
             ManagerDumpables::Keyboard => self.computer.keypad.format_as_string(),
         }
     }
+
+    pub fn load_new_program_from_disk_to_system_memory(&mut self, file_to_load: &Path) {
+        println!("ComputerManager: Preparing to load {}", file_to_load.display());
+        // load the file into bytes...
+        let file = File::open(file_to_load).unwrap();
+        let mut reader = BufReader::new(file);
+        let mut chunks = Vec::new();
+
+        loop {
+            let mut buffer = vec![0u8; 1];
+            let bytes_read = reader.read(&mut buffer).unwrap_or(0);
+            if bytes_read == 0 {
+                break;
+            }
+            buffer.truncate(bytes_read);
+            chunks.push(buffer[0]);
+        }
+
+        self.load_new_program_to_system_memory(chunks);
+        // ...then use the existing method
+        self.core_should_run = true;
+    }
 }

gemmatelnet/src/client_handler.rs

@@ -5,6 +5,7 @@ use gemma::chip8::quirk_modes::QuirkMode;
 use crate::telnet_utils::list_of_files_in_directory;
 use std::io::Write;
 use std::path::Path;
+use gemma::constants::RESOURCES_ROOT;
 
 const CANT_NOTIFY_ERROR: &str = "Unable to notify client";
 const MENU_TEXT: &str = r#"
@@ -84,11 +85,14 @@ pub fn handle_client(mut stream: TcpStream) {
                     );
             }
             "load" => {
-
+                let file_to_use = p1.unwrap_or("default.ch8");
                 // chip8 = Chip8ComputerManager::from(chip8).load_new_program_to_system_memory()
                 message_to_send = format!("Preparing to load {} from disk.",
                                           p1.unwrap_or("default.ch8").trim());
-                chip8.start();
+
+                chip8.load_new_program_from_disk_to_system_memory(
+                    Path::new(format!("{}/roms/{}", RESOURCES_ROOT, file_to_use).as_str())
+                );
             }
             "menu" => {
                 message_to_send = MENU_TEXT.to_string();