[libre-riscv-dev] next tasks

Luke Kenneth Casson Leighton lkcl at lkcl.net
Wed Feb 19 21:30:43 GMT 2020

On Wed, Feb 19, 2020 at 8:56 PM Jacob Lifshay <programmerjake at gmail.com> wrote:

> I'd recommend something other than the MC68000 that has much wider compiler
> support (at least both modern versions of llvm and gcc) as well as a less
> unusual ISA. (address registers -- need I say more?)

awwWWWWwww :)

> Also, supporting 64-bit pointers allows sharing address space with the main
> processors (more important than the other concerns).

i particularly wanted something that would fit staf's goals for a
retro-uC (and also be useful).

> If we don't need any custom extensions, maybe just pick a RV64IMAC core
> since the ISA is simple, there's tons of available implementations if we
> don't want to build our own, and so we can reduce ISA proliferation on the
> SoC that way?

hmmm... one other possibility is that lip6.fr are already doing the
layout for an RV core.  that would save a huge amount of time we might
not have.


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