add ins type for Pokémon Mini and GA20

src/engine/instrument.cpp

@@ -915,7 +915,13 @@ void DivInstrument::putInsData2(SafeWriter* w, bool fui, const DivSong* song) {
         featureSM=true;
         featureSL=true;
         break;
-
+      case DIV_INS_GA20:
+        featureSM=true;
+        featureSL=true;
+        break;
+      case DIV_INS_POKEMINI:
+        break;
+      
       case DIV_INS_MAX:
         break;
       case DIV_INS_NULL:

src/engine/instrument.h

@@ -76,6 +76,8 @@ enum DivInstrumentType: unsigned short {
   DIV_INS_MSM5232=43,
   DIV_INS_T6W28=44,
   DIV_INS_K007232=45,
+  DIV_INS_GA20=46,
+  DIV_INS_POKEMINI=47,
   DIV_INS_MAX,
   DIV_INS_NULL
 };

src/engine/song.h

@@ -116,6 +116,7 @@ enum DivSystem {
   DIV_SYSTEM_MSM5232,
   DIV_SYSTEM_T6W28,
   DIV_SYSTEM_K007232,
+  DIV_SYSTEM_GA20,
   DIV_SYSTEM_PCM_DAC,
   DIV_SYSTEM_PONG,
   DIV_SYSTEM_DUMMY

src/engine/sysDef.cpp

@@ -1174,7 +1174,7 @@ void DivEngine::registerSystems() {
     {"Square"},
     {"SQ"},
     {DIV_CH_PULSE},
-    {DIV_INS_BEEPER}
+    {DIV_INS_POKEMINI}
   );
 
   sysDefs[DIV_SYSTEM_SEGAPCM]=new DivSysDef(
@@ -1703,6 +1703,16 @@ void DivEngine::registerSystems() {
     {DIV_INS_AMIGA, DIV_INS_AMIGA}
   );
 
+  sysDefs[DIV_SYSTEM_GA20]=new DivSysDef(
+    "Irem GA20", NULL, 0xc7, 0, 4, false, true, 0x171, false, 1U<<DIV_SAMPLE_DEPTH_8BIT,
+    "yet another PCM chip from Irem.",
+    {"Channel 1", "Channel 2", "Channel 3", "Channel 4"},
+    {"CH1", "CH2", "CH3", "CH4"},
+    {DIV_CH_PCM, DIV_CH_PCM, DIV_CH_PCM, DIV_CH_PCM},
+    {DIV_INS_GA20, DIV_INS_GA20, DIV_INS_GA20, DIV_INS_GA20},
+    {DIV_INS_AMIGA, DIV_INS_AMIGA}
+  );
+
   sysDefs[DIV_SYSTEM_DUMMY]=new DivSysDef(
     "Dummy System", NULL, 0xfd, 0, 8, false, true, 0, false, 0,
     "this is a system designed for testing purposes.",