PVS-Studio warning V547 for Snes9x

bool Set_RS_Val()
{
  ....
  int appliedSize;
  ....
  if((appliedSize == TEXT('b') && appliedSize == TEXT('s') &&
      (rs_param < -128 || rs_param > 127)) ||
     (appliedSize == TEXT('b') && appliedSize != TEXT('s') &&
      (rs_param < 0 || rs_param > 255)) ||
     (appliedSize == TEXT('w') && appliedSize == TEXT('s') &&
      (rs_param < -32768 || rs_param > 32767)) ||
     (appliedSize == TEXT('w') && appliedSize != TEXT('s') &&
      (rs_param < 0 || rs_param > 65535)))
     return false;
  ....
}

This suspicious code was found in Snes9x project by PVS-Studio static code analyzer.
Warning message is:
V547 Expression is always false. Probably the '||' operator should be used here. ram_search.cpp 921

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