Display execution speed multiplier

src/simulator.rs

@@ -1,5 +1,5 @@
-use std::collections::HashMap;
 use std::sync::mpsc::Receiver;
+use std::{collections::HashMap, time};
 
 use eframe::egui;
 use views::SimulatorUiStates;
@@ -15,6 +15,7 @@ pub struct Simulator {
     emulator_exec_rx: Option<Receiver<Result<Emulator, String>>>,
     ui_states: SimulatorUiStates,
     io_ports: HashMap<u32, u8>,
+    prev_timing: time::Instant,
 }
 
 impl Simulator {
@@ -24,6 +25,7 @@ impl Simulator {
             emulator_exec_rx: None,
             ui_states: SimulatorUiStates::new(),
             io_ports: HashMap::new(),
+            prev_timing: time::Instant::now(),
         }
     }
 

src/simulator/parse_messages.rs

@@ -1,3 +1,5 @@
+use std::time;
+
 use super::Simulator;
 
 impl Simulator {
@@ -11,8 +13,14 @@ impl Simulator {
                         emulator.send_message(format!("u8:{:x}:{:x}", addr, value));
                     }
                     emulator.send_message("cmd:start");
+                    self.prev_timing = time::Instant::now();
                 }
             }
+            "1sec" => {
+                let duration = self.prev_timing.elapsed();
+                self.prev_timing = time::Instant::now();
+                self.ui_states.speed = 1f32 / duration.as_secs_f32();
+            }
             _ => (),
         }
     }

src/simulator/views.rs

@@ -10,6 +10,7 @@ pub struct SimulatorUiStates {
     pub elf_path: Arc<Mutex<String>>,
     pub elf_args: String,
     messages: Vec<String>,
+    pub speed: f32,
 }
 
 impl SimulatorUiStates {
@@ -18,6 +19,7 @@ impl SimulatorUiStates {
             elf_path: Arc::new(Mutex::new(String::new())),
             elf_args: String::new(),
             messages: Vec::new(),
+            speed: 0f32,
         }
     }
 
@@ -91,6 +93,7 @@ impl Simulator {
         } else {
             ui.label("Emulator is None.");
         }
+        ui.label(format!("Speed: x{}", self.ui_states.speed));
 
         ui.separator();