More progress in CScriptStreamedAudio

asm/MetroidPrime/CInGameTweakManager.s

@@ -1185,7 +1185,7 @@ __ct__19CInGameTweakManagerFv:
 /* 8021D12C 0021A08C  90 01 00 1C */	stw r0, 0x1c(r1)
 /* 8021D130 0021A090  90 E1 00 10 */	stw r7, 0x10(r1)
 /* 8021D134 0021A094  90 C1 00 14 */	stw r6, 0x14(r1)
-/* 8021D138 0021A098  4B FE F6 B9 */	bl sub_8020c7f0
+/* 8021D138 0021A098  4B FE F6 B9 */	bl "sub_8020c7f0__FRCQ24rstl66basic_string<c,Q24rstl14char_traits<c>,Q24rstl17rmemory_allocator>"
 /* 8021D13C 0021A09C  7C 7E 1B 78 */	mr r30, r3
 /* 8021D140 0021A0A0  7F E3 FB 78 */	mr r3, r31
 /* 8021D144 0021A0A4  38 9E 00 01 */	addi r4, r30, 1

asm/MetroidPrime/ScriptObjects/CScriptStreamedAudio.s

@@ -135,7 +135,7 @@ sub_8020be90__20CScriptStreamedMusicFv:
 /* 8020BF74 00208ED4  90 A1 00 1C */	stw r5, 0x1c(r1)
 /* 8020BF78 00208ED8  90 C1 00 10 */	stw r6, 0x10(r1)
 /* 8020BF7C 00208EDC  90 01 00 14 */	stw r0, 0x14(r1)
-/* 8020BF80 00208EE0  48 00 08 71 */	bl sub_8020c7f0
+/* 8020BF80 00208EE0  48 00 08 71 */	bl "sub_8020c7f0__FRCQ24rstl66basic_string<c,Q24rstl14char_traits<c>,Q24rstl17rmemory_allocator>"
 /* 8020BF84 00208EE4  7C 7E 1B 78 */	mr r30, r3
 /* 8020BF88 00208EE8  38 61 00 78 */	addi r3, r1, 0x78
 /* 8020BF8C 00208EEC  38 9E 00 01 */	addi r4, r30, 1
@@ -760,8 +760,8 @@ IsOneShot__20CScriptStreamedMusicFb:
 /* 8020C7E8 00209748  54 03 D9 7E */	srwi r3, r0, 5
 /* 8020C7EC 0020974C  4E 80 00 20 */	blr
 
-.global sub_8020c7f0
+.global "sub_8020c7f0__FRCQ24rstl66basic_string<c,Q24rstl14char_traits<c>,Q24rstl17rmemory_allocator>"
-sub_8020c7f0:
+"sub_8020c7f0__FRCQ24rstl66basic_string<c,Q24rstl14char_traits<c>,Q24rstl17rmemory_allocator>":
 /* 8020C7F0 00209750  94 21 FF E0 */	stwu r1, -0x20(r1)
 /* 8020C7F4 00209754  7C 08 02 A6 */	mflr r0
 /* 8020C7F8 00209758  90 01 00 24 */	stw r0, 0x24(r1)

include/MetroidPrime/ScriptObjects/CScriptStreamedAudio.hpp

@@ -33,7 +33,7 @@ private:
 
   void sub_8020c3f0(CStateManager& mgr);
   void sub_8020c414(CStateManager& mgr);
-  rstl::string sub_8020be90();
+  void sub_8020be90();
 };
 
 #endif // _CSCRIPTSTREAMEDAUDIO

include/rstl/string.hpp

@@ -25,7 +25,7 @@ class basic_string {
   uint x8_size;
   uint _pad; // Alloc?
 
-  // void internal_allocate(int size)
+  void internal_allocate(int size);
   // {
   //     x4_cow = reinterpret_cast<COWData*>(new uchar[size * sizeof(_CharTp) +
   //     8]); x0_ptr = x4_cow->x8_data; x4_cow->x0_capacity = uint(size);
@@ -104,6 +104,8 @@ public:
     return *this;
   }
   basic_string operator+(const _CharTp*);
+  void append(const basic_string& other);
+  void append(int, _CharTp);
 
   int _eq_helper(const basic_string& other) const;
   bool operator==(const basic_string& other) const;
@@ -140,8 +142,18 @@ string string_l(const char* data);
 //     return string(string::literal_t(), data);
 // }
 
-string operator+(const string&, const string&);
+string operator+(const string& a, const string& b);
-string operator+(const string&, char);
+// {
+//   string result(a);
+//   result.append(b);
+//   return result;
+// }
+
+string operator+(const string& a, char c) {
+  string result(a);
+  result.append(1, c);
+  return result;
+}
 
 CHECK_SIZEOF(string, 0x10)
 } // namespace rstl

src/MetroidPrime/ScriptObjects/CScriptStreamedAudio.cpp

@@ -11,6 +11,14 @@
 extern "C" void nullsub_42(CScriptStreamedMusic*);
 int sub_8020c154(const rstl::string&, int, int);
 
+extern "C" int sub_8020c844(int* a, int* b) {
+  return b[1] - a[1];
+}
+
+rstl::string sub_8020c7f0(const rstl::string&) {
+  sub_8020c844(nullptr, nullptr);
+}
+
 int CScriptStreamedMusic::IsOneShot(bool b) { return b == false; }
 
 CScriptStreamedMusic::CScriptStreamedMusic(TUniqueId id, const CEntityInfo& info,
@@ -141,14 +149,14 @@ void CScriptStreamedMusic::TweakOverride(CStateManager& mgr) {
 
 int sub_8020c154(const rstl::string&, int, int) {}
 
-rstl::string CScriptStreamedMusic::sub_8020be90() {
+void CScriptStreamedMusic::sub_8020be90() {
   if (x45_fileIsDsp && sub_8020c154(x34_fileName, 0x7c, 0) == -1 && x34_fileName.size() >= 4) {
     if (CStringExtras::CompareCaseInsensitive(
             rstl::string_l(x34_fileName.data() + (x34_fileName.size() - 5)),
             rstl::string_l("L.dsp")) == 0) {
 
-        rstl::string buf;
+        sub_8020c7f0(x34_fileName);
-        rstl::string file = buf + "R.dsp";
+        rstl::string file = x34_fileName + "R.dsp";
         if (CDvdFile::FileExists(file.data())) {
           x34_fileName = x34_fileName + '|' + file;
         }