Added Write() function to Archive and Archive_RomFS

src/core/hle/kernel/archive.cpp

@@ -48,8 +48,8 @@ public:
     Result SyncRequest(bool* wait) {
         u32* cmd_buff = Service::GetCommandBuffer();
         FileCommand cmd = static_cast<FileCommand>(cmd_buff[0]);
+        
         switch (cmd) {
-
         // Read from archive...
         case FileCommand::Read:
         {
@@ -59,12 +59,22 @@ public:
             cmd_buff[2] = backend->Read(offset, length, Memory::GetPointer(address));
             break;
         }
-
+        // Write to archive...
+        case FileCommand::Write:
+        {
+            u64 offset = cmd_buff[1] | ((u64) cmd_buff[2]) << 32;
+            u32 length  = cmd_buff[3];
+            u32 address = cmd_buff[5];
+            cmd_buff[2] = backend->Write(offset, length, Memory::GetPointer(address));
+            break;
+        }
         // Unknown command...
         default:
+        {
             ERROR_LOG(KERNEL, "Unknown command=0x%08X!", cmd);
             return -1;
         }
+        }
         cmd_buff[1] = 0; // No error
         return 0;
     }