Why there aren't RH850 series(like RH850G3K) processors in the processor type list in my IDA? (IDA website says they are supported.) I use IDA 7.0 pro.
RH850 Processor type is not supported in IDA 7.0 pro. It just has been added in IDA 7.2 pro. https://www.hex-rays.com/products/ida/7.2/index.shtml