From 4efee7e9f1f6780813263666260a9c98bc99b7e9 Mon Sep 17 00:00:00 2001
From: byuu <2107894+byuu@users.noreply.github.com>
Date: Tue, 1 Oct 2019 06:51:17 +0900
Subject: [PATCH] Hotfix for Magical Drop (Japan)'s "tokoton mode"

---
 bsnes/sfc/dsp/dsp.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/bsnes/sfc/dsp/dsp.cpp b/bsnes/sfc/dsp/dsp.cpp
index e44ab63a..56e62266 100644
--- a/bsnes/sfc/dsp/dsp.cpp
+++ b/bsnes/sfc/dsp/dsp.cpp
@@ -60,6 +60,14 @@ auto DSP::power(bool reset) -> void {
     spc_dsp.soft_reset();
     spc_dsp.set_output(samplebuffer, 8192);
   }
+
+  if(configuration.hacks.hotfixes) {
+    //Magical Drop (Japan) does not initialize the DSP registers at startup.
+    //Tokoton mode will hang forever in some instances even on real hardware.
+    if(cartridge.headerTitle() == "MAGICAL DROP") {
+      for(uint address : range(0x80)) spc_dsp.write(address, 0xff);
+    }
+  }
 }
 
 auto DSP::mute() -> bool {