sentences:  According to Pat Gelsinger, binary backward compatibility for legacy software is more important than changing the ISA.The V60 ( μPD70616) retained a CISC architecture.Its manual describes their architecture as having "features of high-end mainframe and supercomputers", with a fully orthogonal instruction set that includes non-uniform-length instructions, memory-to-memory operations that include string manipulation, and complex operand-addressing schemes.