4 ms·

Jupiter: RISC-V Assembler and Runtime Simulator

112 points by eatonphil 7y ago

tempodox 7y ago
Highly appreciated. In absence of actual hardware this seems to be the next best thing.
- thethirdone 7y ago
  There are several other simulators. For professional simulators working on software for RISC-V hardware there are Spike [0], rv8 [1], and QEMU [2] are popular. For educational purposes, Venus [3,4], RARS [5], and RIPES [6] are popular. A fuller list can be found at [7]. Disclaimer: I am the maintainer for RARS. I have my finger on the pulse of the education simulator scene so if you want a fuller list of educational simulators, I can wrangle those URLs. [0]: https://github.com/riscv/riscv-isa-sim https://github.com/riscv/riscv-isa-sim [1]: https://github.com/rv8-io/rv8 https://github.com/rv8-io/rv8 [2]: http://git.qemu.org/qemu.git http://git.qemu.org/qemu.git (upstream URL) [3]: https://github.com/kvakil/venus https://github.com/kvakil/venus (original project) [4]: https://github.com/ThaumicMekanism/venus https://github.com/ThaumicMekanism/venus (currently maintained fork) [5]: https://github.com/TheThirdOne/rars https://github.com/TheThirdOne/rars [6]: https://github.com/mortbopet/Ripes https://github.com/mortbopet/Ripes [7]: https://riscv.org/software-status/ https://riscv.org/software-status/
- darren0 7y ago
  There is also TinyEMU that has the added benefit that a JavaScript version is available that runs in the browser. https://bellard.org/tinyemu/ https://bellard.org/tinyemu/
m0zg 7y ago
Somewhat unrelated to this particular bit, but I'm kind of growing tired of RISC-V news at this point. You can only promise the pot of gold at the end of the rainbow to people for so long before they lose interest. I've been reading these news for what 3-4 years now? And yet, there's still no practical way to use any of this with my platform of choice (Linux). There's a $1K prototype board and that's it. There's also an Arduino-like board that costs more than the latest Raspberry Pi 4. In the meanwhile I can buy a $100 quad core ARM board with a CUDA capable GPU onboard and 4GB of RAM. Proprietary? Sure. But it's 1/10th the price, several times faster, and it's available in any quantity right now. Real artists ship, not just go to conferences and discuss how glorious their ISA is going to be in 10 years when they get around to actually getting something out the door.
- nine_k 7y ago
  RISC-V cores ship in certain quantities already. They just don't happen to be general purpose / hobbyist chips. They are embedded into specialized controllers, such as SSD controllers [1], or FPGA cores. [1]: https://www.anandtech.com/show/13678/western-digital-reveals-swerv-risc-v-core-and-omnixtend-coherency-tech https://www.anandtech.com/show/13678/western-digital-reveals...
- tyingq 7y ago
  It isn't a single entity you're referring to, so it's difficult to tell who you're disappointed with.
- nickik 7y ago
  > You can only promise the pot of gold at the end of the rainbow to people Who promised you this pot of gold? Seems to me that this is what you want and you are not getting what you want. Nobody promised you that you could have RISC-V with a board you like that can do everything you want to do at the price you are happy with. > Real artists ship, not just go to conferences and discuss how glorious their ISA is going to be in 10 years when they get around to actually getting something out the door. You understand that RISC-V is a standartisation organ, not a product company right? They have delivered on the standards and all the tools around them. And RISC-V is already used in products. Just not in the specific products you would like to buy.

112 points by eatonphil 7y ago

tempodox 7y ago

Highly appreciated. In absence of actual hardware this seems to be the next best thing.

thethirdone 7y ago
There are several other simulators. For professional simulators working on software for RISC-V hardware there are Spike [0], rv8 [1], and QEMU [2] are popular. For educational purposes, Venus [3,4], RARS [5], and RIPES [6] are popular. A fuller list can be found at [7]. Disclaimer: I am the maintainer for RARS. I have my finger on the pulse of the education simulator scene so if you want a fuller list of educational simulators, I can wrangle those URLs. [0]: https://github.com/riscv/riscv-isa-sim https://github.com/riscv/riscv-isa-sim [1]: https://github.com/rv8-io/rv8 https://github.com/rv8-io/rv8 [2]: http://git.qemu.org/qemu.git http://git.qemu.org/qemu.git (upstream URL) [3]: https://github.com/kvakil/venus https://github.com/kvakil/venus (original project) [4]: https://github.com/ThaumicMekanism/venus https://github.com/ThaumicMekanism/venus (currently maintained fork) [5]: https://github.com/TheThirdOne/rars https://github.com/TheThirdOne/rars [6]: https://github.com/mortbopet/Ripes https://github.com/mortbopet/Ripes [7]: https://riscv.org/software-status/ https://riscv.org/software-status/
darren0 7y ago
There is also TinyEMU that has the added benefit that a JavaScript version is available that runs in the browser. https://bellard.org/tinyemu/ https://bellard.org/tinyemu/

m0zg 7y ago

Somewhat unrelated to this particular bit, but I'm kind of growing tired of RISC-V news at this point. You can only promise the pot of gold at the end of the rainbow to people for so long before they lose interest. I've been reading these news for what 3-4 years now? And yet, there's still no practical way to use any of this with my platform of choice (Linux). There's a $1K prototype board and that's it. There's also an Arduino-like board that costs more than the latest Raspberry Pi 4. In the meanwhile I can buy a $100 quad core ARM board with a CUDA capable GPU onboard and 4GB of RAM. Proprietary? Sure. But it's 1/10th the price, several times faster, and it's available in any quantity right now. Real artists ship, not just go to conferences and discuss how glorious their ISA is going to be in 10 years when they get around to actually getting something out the door.

nine_k 7y ago
RISC-V cores ship in certain quantities already. They just don't happen to be general purpose / hobbyist chips. They are embedded into specialized controllers, such as SSD controllers [1], or FPGA cores. [1]: https://www.anandtech.com/show/13678/western-digital-reveals-swerv-risc-v-core-and-omnixtend-coherency-tech https://www.anandtech.com/show/13678/western-digital-reveals...
tyingq 7y ago
It isn't a single entity you're referring to, so it's difficult to tell who you're disappointed with.
nickik 7y ago
> You can only promise the pot of gold at the end of the rainbow to people Who promised you this pot of gold? Seems to me that this is what you want and you are not getting what you want. Nobody promised you that you could have RISC-V with a board you like that can do everything you want to do at the price you are happy with. > Real artists ship, not just go to conferences and discuss how glorious their ISA is going to be in 10 years when they get around to actually getting something out the door. You understand that RISC-V is a standartisation organ, not a product company right? They have delivered on the standards and all the tools around them. And RISC-V is already used in products. Just not in the specific products you would like to buy.