dev193 - AY: fix wave macro

prior to this version, the wave macro was offset by 1
- 0 = square
- 1 = noise
- 2 = square + noise
- ...
due to Defle crap...

now it's no longer offset
- 0 = nothing
- 1 = square
- 2 = noise
- ...

src/engine/instrument.cpp

@@ -1525,6 +1525,14 @@ void DivInstrument::readFeatureMA(SafeReader& reader, short version) {
     }
   }
 
+  if (version<193) {
+    if (type==DIV_INS_AY || type==DIV_INS_AY8930) {
+      for (int j=0; j<std.waveMacro.len; j++) {
+        std.waveMacro.val[j]++;
+      }
+    }
+  }
+
   READ_FEAT_END;
 }
 
@@ -2325,6 +2333,13 @@ DivDataErrors DivInstrument::readInsDataOld(SafeReader &reader, short version) {
       std.dutyMacro.val[j]-=12;
     }
   }
+  if (version<193) {
+    if (type==DIV_INS_AY || type==DIV_INS_AY8930) {
+      for (int j=0; j<std.waveMacro.len; j++) {
+        std.waveMacro.val[j]++;
+      }
+    }
+  }
   if (version>=17) {
     READ_MACRO_VALS(std.pitchMacro.val,std.pitchMacro.len);
     READ_MACRO_VALS(std.ex1Macro.val,std.ex1Macro.len);