From f1e5e041983f1433eebdb3c8a55c328d56467ca5 Mon Sep 17 00:00:00 2001
From: Lior Halphon <LIJI32@gmail.com>
Date: Thu, 25 Nov 2021 21:46:51 +0200
Subject: [PATCH] ...even when timekeeping is disabled

---
 Core/timing.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Core/timing.c b/Core/timing.c
index 5c5eccf..e3023b4 100644
--- a/Core/timing.c
+++ b/Core/timing.c
@@ -95,6 +95,16 @@ bool GB_timing_sync_turbo(GB_gameboy_t *gb)
 
 void GB_timing_sync(GB_gameboy_t *gb)
 {
+    if (gb->cycles_since_last_sync < LCDC_PERIOD / 3) return;
+    gb->cycles_since_last_sync = 0;
+
+    if (gb->turbo) {
+        gb->cycles_since_last_sync = 0;
+        if (gb->update_input_hint_callback) {
+            gb->update_input_hint_callback(gb);
+        }
+        return;
+    }
 }
 
 #endif