antonblanchard/microwatt on Hacker News

…sourcing the verification too, and that's arguably more useful than the rtl in the first place. https://github.com/antonblanchard/microwatt/tree/master/test...

comment by monocasa · 2023-10-21 · in Microwatt: A tiny Open POWER ISA softcore written in VHDL 2008

The FPU has an instruction for fast inverse square root. https://github.com/antonblanchard/microwatt/blob/master/fpu.... I presume v.state := ... is what the FPU will do next, like a deferred goto. you can unroll the whole process…

comment by CodeArtisan · 2023-10-21 · in Microwatt: A tiny Open POWER ISA softcore written in VHDL 2008

…so those would be more as well). You can see how the Power instruction decode is implemented https://github.com/antonblanchard/microwatt/blob/master/deco...

comment by mkj · 2023-10-21 · in Microwatt: A tiny Open POWER ISA softcore written in VHDL 2008

…POWER: - https://github.com/OpenPOWERFoundation/a2i - https://github.com/OpenPOWERFoundation/a2o - https://github.com/antonblanchard/microwatt

comment by an-unknown · 2023-03-24 · in Arm wants to charge dramatically more for chip licenses

Microwatt is the only one I know of. Built as a tiny fgpa core. https://github.com/antonblanchard/microwatt

comment by rektide · 2023-03-24 · in Arm wants to charge dramatically more for chip licenses

…Raptor workstations and servers. If you want an OpenPOWER design to play with, look at Microwatt ( https://github.com/antonblanchard/microwatt ) which is complete enough to boot Linux.

comment by classichasclass · 2022-12-23 · in RISC-V Pushes into the Mainstream

https://github.com/antonblanchard/microwatt is an example of a Linux-capable 64-bit core that has been submitted on multiple Open MPW shuttles: https://platform.efabless.com/projects/29 https://platform.efabless.com/projects/795…

comment by proppy · 2022-06-02 · in Build Open Silicon with Google

The ISA is open and royalty free. There are at least three open cores, all IBM funded or designed: https://github.com/antonblanchard/microwatt https://github.com/openpower-cores/a2o https://github.com/openpower-cores/a2i The last two are…

comment by classichasclass · 2022-01-22 · in Keeping POWER relevant in the open source world

…if anyone wants to play you can run a little openpower CPU on an FPGA with completely open source. https://github.com/antonblanchard/microwatt It's capable of running Linux, some example docs are https://shenki.github.io/boot-linux-on-micro…

comment by mkj · 2022-01-22 · in Keeping POWER relevant in the open source world

…I hate it ) wont make much sense. You are talking about ~30mm2+ per core design. It is huge. [1] https://github.com/antonblanchard/microwatt

comment by ksec · 2021-09-11 · in IBM Power10 Coming to Market: E1080 for ‘Frictionless Hybrid Cloud Experiences’

…instantiate PPC cores to meet load, make fast ones, wide ones, slow ones. What a time to be alive! https://github.com/antonblanchard/microwatt

comment by seg_lol · 2021-05-12 · in Haiku OS ported and running on RISC-V

An OpenPOWER one, likely this with modification: https://github.com/antonblanchard/microwatt

comment by sennight · 2021-05-10 · in OpenPOWER Foundation announces LibreBMC, a POWER-based, fully open-source BMC

…own Power ISA system with Microwatt, which is fully synthesizeable and growing by leaps and bounds. https://github.com/antonblanchard/microwatt (Disclaimer: minor contributor) I really liked PA-RISC. I thought it was a clean ISA with good…

comment by classichasclass · 2021-05-07 · in Illumos to drop SPARC Support

…replacement, which would offer an opportunity to dust off some old Xzibit templates, so thats good. https://github.com/antonblanchard/microwatt https://github.com/antonblanchard/chiselwatt https://www.efabless.com/projects/29…

comment by sennight · 2021-05-01 · in Exploiting Undocumented Hardware Blocks in the LPC55S69

>Power/PowerPC is still out there somewhere though. https://openpowerfoundation.org https://github.com/antonblanchard/microwatt Unfortunately it isn't gaining any traction. From a Long term Cost perspective it is actually cheaper choosing…

comment by ksec · 2021-03-09 · in MIPS Becomes RISC-V

…better than RISC-V. ( Rather unfortunate IBM is loathed by lots of people in the industry ) [1] https://github.com/antonblanchard/microwatt

comment by ksec · 2020-12-27 · in The Genius of RISC-V Microprocessors

Or similar from OpenPOWER, I thought people might be interested. https://github.com/antonblanchard/microwatt

comment by ksec · 2020-11-06 · in Western Digital SweRV RISC-V Core

…on OpenPOWER vs ARM v8.2 in terms of ISA? And for those who may be interested in OpenPOWER, https://github.com/antonblanchard/microwatt

comment by ksec · 2020-09-13 · in SoftBank set to sell UK’s Arm Holdings to Nvidia for $40B

Do you specifically mean PowerPC and not the POWER ISA? If not, there's at least https://github.com/antonblanchard/microwatt And the most powerful POWER system you can buy would be something based on the POWER9 processor.

comment by jabl · 2020-06-18 · in The PowerPC Compiler Writer's Guide (1996) [pdf]

https://github.com/antonblanchard/microwatt Although I guess it is less relevant now Western Digital has open sourced their RISC-V design as well. https://github.com/westerndigitalcorporation/swerv_eh1

comment by ksec · 2020-01-02 · in Happy New Year HN!

Microwatt is the first fully open POWER core: https://github.com/antonblanchard/microwatt It's also structured very well, quite clean for learning purposes etc. The current goal so far as I know is to perfect this core, and fork for a more…

comment by tpearson-raptor · 2019-10-11 · in System76 Will Ship Linux Laptops With Coreboot-Based Open-Source Firmware

https://github.com/antonblanchard/microwatt ( from another comment)

comment by rusticpenn · 2019-08-29 · in IBM has released the Power Architecture instruction set to the Linux Foundation

https://github.com/antonblanchard/microwatt Written initially by a Distinguished Engineer at IBM and sponsored by IBM, this was released when the announcement was made at the OpenPOWER Summit.

comment by justinjlynn · 2019-08-29 · in IBM has released the Power Architecture instruction set to the Linux Foundation

…The Summit talk [2] mentioned DRAM support and Linux support potentially being on the roadmap. [0]: https://github.com/antonblanchard/microwatt [1]: https://github.com/mikey/micropython/commits/powerpc [2]:…

comment by cipherboy · 2019-08-29 · in IBM has released the Power Architecture instruction set to the Linux Foundation

The toy soft-core VHDL model that is referred to there will be available at https://github.com/antonblanchard/microwatt at some point in the next couple of days.

comment by ajdlinux · 2019-08-21 · in IBM Open-Sources Power Chip Instruction Set