4 ms·

So I guess the thing currently keeping RISC-V from moving forward is ratification of the privileged spec, which is planned for end of 2017/2018? https://riscv.

So I guess the thing currently keeping RISC-V from moving forward is ratification of the privileged spec, which is planned for end of 2017/2018? https://riscv.org/wp-content/uploads/2017/05/Tue1115-Technical-Committee-Update.pdf https://riscv.org/wp-content/uploads/2017/05/Tue1115-Technic...

majewsky 9y ago
I don't follow RISC-V development closely, so please define "moving forward". What are the steps you want to see taken?
- legulere 9y ago
  Production of chips that support the privileged specification, which is needed for operating systems like Linux to run. So far there is only one microcontroller chip being produced.
  - razer6 9y ago
    Not exactly true. There exist different tapeouts in academia (e.g. http://asic.ethz.ch/2016/Patronus.html http://asic.ethz.ch/2016/Patronus.html or http://asic.ethz.ch/2015/Imperio.html http://asic.ethz.ch/2015/Imperio.html) as well as in industry (which are not public).
lloydjatkinson 9y ago
> privileged spec I hope this refers to ring-0-like instructions such as x86 STI, and not some kind of OEM/manufacturer "you can only use this set of instructions if you pay us" type privilege?
- fnord123 9y ago
  Yes, indeed it is about ring-0, hypervisor type stuff. https://github.com/riscv/riscv-isa-manual/blob/master/release/riscv-privileged-v1.10.pdf https://github.com/riscv/riscv-isa-manual/blob/master/releas...
- lloydjatkinson 9y ago
  Who on earth is downvoting this? Get a grip
  - Dylan16807 9y ago
    They're downvoting because the entirety of your comment was a (baseless) worry about the definition of a word that would have taken seconds to check.
    - lloydjatkinson 9y ago
      Totally have time to read huge PDF's every day.
      - Dylan16807 9y ago
        It has a section in the wikipedia page, which is right under that PDF in the search results. Alternatively in the PDF you would only need to look at the "Introduction" section for a minute.

majewsky 9y ago

I don't follow RISC-V development closely, so please define "moving forward". What are the steps you want to see taken?

legulere 9y ago
Production of chips that support the privileged specification, which is needed for operating systems like Linux to run. So far there is only one microcontroller chip being produced.
- razer6 9y ago
  Not exactly true. There exist different tapeouts in academia (e.g. http://asic.ethz.ch/2016/Patronus.html http://asic.ethz.ch/2016/Patronus.html or http://asic.ethz.ch/2015/Imperio.html http://asic.ethz.ch/2015/Imperio.html) as well as in industry (which are not public).

lloydjatkinson 9y ago

> privileged spec I hope this refers to ring-0-like instructions such as x86 STI, and not some kind of OEM/manufacturer "you can only use this set of instructions if you pay us" type privilege?

fnord123 9y ago
Yes, indeed it is about ring-0, hypervisor type stuff. https://github.com/riscv/riscv-isa-manual/blob/master/release/riscv-privileged-v1.10.pdf https://github.com/riscv/riscv-isa-manual/blob/master/releas...
lloydjatkinson 9y ago
Who on earth is downvoting this? Get a grip
- Dylan16807 9y ago
  They're downvoting because the entirety of your comment was a (baseless) worry about the definition of a word that would have taken seconds to check.
  - lloydjatkinson 9y ago
    Totally have time to read huge PDF's every day.
    - Dylan16807 9y ago
      It has a section in the wikipedia page, which is right under that PDF in the search results. Alternatively in the PDF you would only need to look at the "Introduction" section for a minute.