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Why I will be using RISC-V in my next chip

adapteva.com

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Re: Why I will be using RISC-V in my next chip

#7

SIMD and VLIW are the future of microprocessors, and unfortunately it doesn't seem like this ISA will be able to support them.

RISC-V has a vector mode that can be used for SIMD applications.

VLIW has been the future since the 80s, and we're still waiting for the magic wonder compilers that can actually spit out efficient VLIW code. Even GPUs have abandoned VLIW (AMD TeraScale) in favour of RISC (Nvidia, AMD GCN).

Re: Why I will be using RISC-V in my next chip

#8
post #7

SIMD and VLIW are the future of microprocessors, and unfortunately it doesn't seem like this ISA will be able to support them.

RISC-V has a vector mode that can be used for SIMD applications. VLIW has been the future since the 80s, and we're still waiting for the magic wonder compilers that can actually spit out efficient VLIW code. Even GPUs have abandoned VLIW (AMD TeraScale) in favour of RISC (Nvidia, AMD GCN).

VLIW DSPs are in every phone. VLIW CPUs are almost certainly a bad idea and as to GPUs, AFAIK VLIW needs to coexist with barrel threading there which might create problems. But VLIW certainly has its place.

Re: Why I will be using RISC-V in my next chip

#10
Good that they're getting on the bandwagon as they're already popular with maker types. I also like the serendipity where this post led me to an equally exciting one:

http://www.adapteva.com/announcements/an-open-source-8gbps-l...

Love that they developed and open-sourced a 8Gbps, 1us, I/O interface. That might come in handy. :)

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