Could a chip based on the SuperH ISA (off which the patents expire) [0] like JCore compete with RISC-V if similar effort would be put into it?
Another worthy contender to be rehabilitated is DEC Alpha. Indeed, the Sunway Taihu Light supercomputer (fastest the on TOP500 list) uses the Sunway SW26010 which is based on the Alpha 21164.
Seeing that Sunway TaihuLight still uses DDR3 I wonder how much power they could save by going with DDR4 and it's lower voltage.
It's cool to see so many older ISAs coming back.
Open ISA and a full open source implementation by MIPS themselves?
> High code density compared to other 32-bit RISC ISAs such as ARM or MIPS[8] important for cache and memory bandwidth performance.
For the sake of completeness, it should be mentioned that arm, mips and riscv also have 16-bit ISA extensions to achieve better density.
They have been modernizing the architecture during the last 10 years.