From 81150d96fa0ad9f636a3080b0db87e71848a2488 Mon Sep 17 00:00:00 2001
From: tildearrow <tildearrow@protonmail.com>
Date: Mon, 4 Apr 2022 04:57:38 -0500
Subject: [PATCH] FDS: add FDS ins type auto-detection on .dmf

---
 src/engine/fileOps.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/engine/fileOps.cpp b/src/engine/fileOps.cpp
index 976b2c32f..47975c426 100644
--- a/src/engine/fileOps.cpp
+++ b/src/engine/fileOps.cpp
@@ -623,6 +623,15 @@ bool DivEngine::loadDMF(unsigned char* file, size_t len) {
           }
           // instrument
           pat->data[k][2]=reader.readS();
+
+          // this is sad
+          if (ds.system[0]==DIV_SYSTEM_NES_FDS) {
+            if (i==5 && pat->data[k][2]!=-1) {
+              if (pat->data[k][2]>=0 && pat->data[k][2]<ds.insLen) {
+                ds.ins[pat->data[k][2]]->type=DIV_INS_FDS;
+              }
+            }
+          }
         }
       }
     }