Service/FS: Document and log some unknown values.

In CreateExtSaveData, DeleteExtSaveData and CreateSystemSaveData

src/core/hle/service/fs/fs_user.cpp

@@ -494,6 +494,14 @@ static void FormatThisUserSaveData(Service::Interface* self) {
  *      1 : Media type (NAND / SDMC)
  *      2 : Low word of the saveid to create
  *      3 : High word of the saveid to create
+ *      4 : Unknown
+ *      5 : Unknown
+ *      6 : Unknown
+ *      7 : Unknown
+ *      8 : Unknown
+ *      9 : Unknown
+ *      10: Unknown
+ *      11: Unknown
  *  Outputs:
  *      1 : Result of function, 0 on success, otherwise error code
  */
@@ -503,6 +511,13 @@ static void CreateExtSaveData(Service::Interface* self) {
     MediaType media_type = static_cast<MediaType>(cmd_buff[1] & 0xFF);
     u32 save_low = cmd_buff[2];
     u32 save_high = cmd_buff[3];
+    
+    LOG_WARNING(Service_FS, "(STUBBED) savedata_high=%08X savedata_low=%08X cmd_buff[3]=%08X "
+            "cmd_buff[4]=%08X cmd_buff[5]=%08X cmd_buff[6]=%08X cmd_buff[7]=%08X cmd_buff[8]=%08X "
+            "cmd_buff[9]=%08X cmd_buff[10]=%08X cmd_buff[11]=%08X", save_high, save_low,
+            cmd_buff[3], cmd_buff[4], cmd_buff[5], cmd_buff[6], cmd_buff[7], cmd_buff[8], cmd_buff[9], 
+            cmd_buff[10], cmd_buff[11]);
+
     cmd_buff[1] = CreateExtSaveData(media_type, save_high, save_low).raw;
 }
 
@@ -513,15 +528,20 @@ static void CreateExtSaveData(Service::Interface* self) {
  *      1 : Media type (NAND / SDMC)
  *      2 : Low word of the saveid to create
  *      3 : High word of the saveid to create
+ *      4 : Unknown
  *  Outputs:
  *      1 : Result of function, 0 on success, otherwise error code
  */
 static void DeleteExtSaveData(Service::Interface* self) {
-    // TODO(Subv): Figure out the other parameters.
     u32* cmd_buff = Kernel::GetCommandBuffer();
     MediaType media_type = static_cast<MediaType>(cmd_buff[1] & 0xFF);
     u32 save_low = cmd_buff[2];
     u32 save_high = cmd_buff[3];
+    u32 unknown = cmd_buff[4]; // TODO(Subv): Figure out what this is
+
+    LOG_WARNING(Service_FS, "(STUBBED) save_low=%08X save_high=%08X media_type=%08X unknown=%08X", 
+            save_low, save_high, cmd_buff[1] & 0xFF, unknown);
+
     cmd_buff[1] = DeleteExtSaveData(media_type, save_high, save_low).raw;
 }
 
@@ -579,6 +599,11 @@ static void CreateSystemSaveData(Service::Interface* self) {
     u32 savedata_high = cmd_buff[1];
     u32 savedata_low = cmd_buff[2];
 
+    LOG_WARNING(Service_FS, "(STUBBED) savedata_high=%08X savedata_low=%08X cmd_buff[3]=%08X "
+            "cmd_buff[4]=%08X cmd_buff[5]=%08X cmd_buff[6]=%08X cmd_buff[7]=%08X cmd_buff[8]=%08X "
+            "cmd_buff[9]=%08X", savedata_high, savedata_low, cmd_buff[3], cmd_buff[4], cmd_buff[5], 
+            cmd_buff[6], cmd_buff[7], cmd_buff[8], cmd_buff[9]);
+
     cmd_buff[1] = CreateSystemSaveData(savedata_high, savedata_low).raw;
 }