[libre-riscv-dev] Why The Dual ISA

[Luke Kenneth Casson Leighton]

On Monday, January 20, 2020, Adam Van Ymeren <adam at vany.ca> wrote:

>
> That conversation may be easier to have now rather than after receiving
> another year or two of funding.  It's not just the added work of
> supporting dual-ISA.  Every decision made going forward on the design
> will be influenced by this need to support dual-ISA whether consciously
> or not.  A year spent trying to build dual-ISA _could_ be worth 2 years
> spent building just one.


decoders for RISC architectures simply do not take that long to write.

the CSRs etc may be more challenging.

we will have to see.

l.



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