add chatgpt driven changes to video rendering

gemmaegui/src/bin/gemmaegui.rs

@@ -34,6 +34,9 @@ fn main() -> eframe::Result {
             if state.display_registers {
                 GemmaEguiSupport::registers_view(&computer, ui);
             }
+            if state.is_running {
+                computer.step_system();
+            }
         });
     })
 }

gemmaegui/src/bin/support/gemma_egui_state.rs

@@ -4,7 +4,8 @@ pub struct GemmaEGuiState {
     pub display_memory: bool,
     pub display_registers: bool,
     pub memory_view_min: i32,
-    pub memory_view_max: i32
+    pub memory_view_max: i32,
+    pub is_running: bool
 }
 
 impl Default for GemmaEGuiState {
@@ -14,7 +15,8 @@ impl Default for GemmaEGuiState {
             display_memory: true,
             display_registers: true,
             memory_view_min: 0x00,
-            memory_view_max: 0x100
+            memory_view_max: 0x100,
+            is_running: false
         }
     }
 }

gemmaegui/src/bin/support/gemma_egui_support.rs

@@ -19,16 +19,18 @@ impl EGuiFileList {
         let mut working_filename = selected_filename.clone();
         ui.label(format!("Displaying {}", root.to_str().unwrap_or("Unable to Load Path")));
 
-        egui::ComboBox::from_label(format!(
-            "Currently selected string: {}",
-            selected_filename
-        ))
+        ComboBox::from_label("Choose an option")
             .selected_text(selected_filename.clone())
             .show_ui(ui, |ui| {
                 for option in read_dir(root.as_path()).unwrap() {
-                    ui.label(format!("{:?}", option.unwrap().file_name()));
+                    // Add each option to the ComboBox
+                    let mut label = option.unwrap().file_name();
+                    ui.selectable_value(selected_filename, selected_filename.clone(), label.into_string().unwrap());
                 }
             });
+
+        // Display the selected option
+        ui.label(format!("Selected value: {}", selected_filename));
     }
 }
 
@@ -39,6 +41,7 @@ impl GemmaEguiSupport {
          ui.with_layout(egui::Layout::left_to_right(egui::Align::TOP), |ui| {
             if ui.button("Start").clicked() {
                 println!("Start");
+                state.is_running = true;
 
             }
             if ui.button("Step").clicked() {
@@ -47,6 +50,7 @@ impl GemmaEguiSupport {
 
             if ui.button("Stop").clicked() {
                 println!("STOP");
+                state.is_running = false;
             }
             if ui.button("Reset").clicked() {
                 system.reset();
@@ -60,6 +64,8 @@ impl GemmaEguiSupport {
                 // ...then feed the system.
                 system.load_bytes_to_memory(0x200, &read_bin);
             }
+             let mut target = String::new();
+             EGuiFileList::display_path(PathBuf::from("resources/roms"), &mut target, ui);
         });