curprev23:4423:44, 1 October 2022 Guy Harristalkcontribs 148,175 bytes−438 Again, new instructions aren't "microarchitecture extensions", they're extensions to the instruction set architecture (ISA). It's not particularly notable that additions have been made to the ISA; most instruction sets since the 1960 have had them. The V60 and V850 ISAs are *NOT* binary compatible; the former is not limited to register-register and register-immediate arithmetic, but the latter is, for example.undo