diff --git a/src/gba/gba-thread.c b/src/gba/gba-thread.c
index 318415ec1..22bb502cc 100644
--- a/src/gba/gba-thread.c
+++ b/src/gba/gba-thread.c
@@ -185,6 +185,14 @@ int GBAThreadStart(struct GBAThread* threadContext) {
 	return 0;
 }
 
+int GBAThreadHasStarted(struct GBAThread* threadContext) {
+	int hasStarted;
+	MutexLock(&threadContext->stateMutex);
+	hasStarted = threadContext->state > THREAD_INITIALIZED;
+	MutexUnlock(&threadContext->stateMutex);
+	return hasStarted;
+}
+
 void GBAThreadEnd(struct GBAThread* threadContext) {
 	MutexLock(&threadContext->stateMutex);
 	if (threadContext->debugger && threadContext->debugger->state == DEBUGGER_RUNNING) {
diff --git a/src/gba/gba-thread.h b/src/gba/gba-thread.h
index 33098b681..582d4990f 100644
--- a/src/gba/gba-thread.h
+++ b/src/gba/gba-thread.h
@@ -66,6 +66,7 @@ struct GBAThread {
 };
 
 int GBAThreadStart(struct GBAThread* threadContext);
+int GBAThreadHasStarted(struct GBAThread* threadContext);
 void GBAThreadEnd(struct GBAThread* threadContext);
 void GBAThreadJoin(struct GBAThread* threadContext);