Panic at end of bench()

ArduChess.ino

@@ -28,6 +28,7 @@ void bench() {
 	int elapsed = micros() - startTime;
 	Serial.print(elapsed);
 	Serial.println(F("microseconds for 5 moves"));
+	panic(F("Bench finished!"));
 }
 
 

Config.h

@@ -1,3 +1,7 @@
 // CLEAR_UNMOVE is a feature that clears the unmake stack when it is not used.
 // This is useful for making it more human readable
 //#define _ACF_CLEAR_UNMOVE
+
+// PANIC_BLINK makes the Arduino blink an error code when it panics.
+// Costs a lot of flash though (around 700 bytes)
+//#define _ACF_PANIC_BLINK

Panic.h

@@ -1,12 +1,43 @@
 #ifndef __PANIC_H_INC
 #define __PANIC_H_INC
 
-void panic(const __FlashStringHelper* message) {
+#pragma GCC push_options
+#pragma GCC optimize("-Os")
+
+#ifdef _ACF_PANIC_BLINK
+void sos() {
+	pinMode(LED_BUILTIN, OUTPUT);
 	while(true) {
-		Serial.println(F("PANIC!"));
-		Serial.println(message);
-		delay(1000);
+		digitalWrite(LED_BUILTIN, HIGH);
+		delay(500);
+		digitalWrite(LED_BUILTIN, LOW);
+		delay(200);
+			digitalWrite(LED_BUILTIN, HIGH);
+			delay(150);
+			digitalWrite(LED_BUILTIN, LOW);
+			delay(150);
+			digitalWrite(LED_BUILTIN, HIGH);
+			delay(150);
+			digitalWrite(LED_BUILTIN, LOW);
+			delay(150);
+			digitalWrite(LED_BUILTIN, HIGH);
+			delay(150);
+			digitalWrite(LED_BUILTIN, LOW);
+			delay(150);
+		delay(2000);
 	}
 }
-
+#endif
+
+void panic(const __FlashStringHelper* message) {
+	Serial.println(F("PANIC!"));
+	Serial.println(message);
+
+	#ifdef _ACF_PANIC_BLINK
+	sos();
+	#endif
+	while(true);
+}
+
+#pragma GCC pop_options
 #endif