Thoughts on Tachyum (part 2)

(Part 1 at https://threedots.ovh/blog/2021/01/thoughts-on-tachyum/, let’s assume that most Tachyum claims are true) Tachyum is a company saying that their VLIW processor will change computing, being a “universal processor” that can be used for all workloads. They still claim that they’ll be able to ship their Prodigy processor this year. According to them, they were able… Continue reading Thoughts on Tachyum (part 2)

mrustc on macOS

9 days ago, I pushed to https://github.com/thepowersgang/mrustc/pull/151 a more complete mrustc on macOS branch including Apple Silicon support, to have an alternative Rust compiler available for the platform. The patch-set is tested with Rust 1.29.0. mrustc’s Rust 1.39.0 support is not quite complete yet at this point in time. Notes: Rust 1.29.0 does not officially… Continue reading mrustc on macOS

Not-an-iPad-review

I ordered an iPad Air (again) on Sunday and picked it up on Monday. So far, it’s quite good, with the Apple Pencil being the killer feature of the device. Scribble is what makes it shine, and what i’m writing this blog post with. It allows to just write text anywhere with the pencil to… Continue reading Not-an-iPad-review

Open source rhetoric? or FUD?

I’ve been reading this blog post. (titled “Heads up: Microsoft repo secretly installed on all Raspberry Pi’s Linux OS”) The headline by itself already sets the tone for what’s next in the article. First, repositories added by default in the OS are not considered as “secret”. I’ll however give a pass to that headline as… Continue reading Open source rhetoric? or FUD?

Notes on the new XNU source release

Yet another one… and this time in buildable form on Apple M1 devices. (tarball at https://opensource.apple.com/tarballs/xnu/xnu-7195.81.3.tar.gz) What are the Apple CPU extensions not supported though on the OSS codebase? Turns out that the answer is almost all of them. A non exhaustive list: APRR (was explicitly removed for this release): permission removal mechanism, notably used… Continue reading Notes on the new XNU source release

New XNU source release

A new XNU release appeared at: https://opensource.apple.com/tarballs/xnu/xnu-7195.60.75.tar.gz. What’s not there: Tunables for Apple Firestorm/Icestorm. Hypervisor support for Apple Silicon-based Macs doesn’t seem to be there and Rosetta support …and some parts of the source code. AMX support is not present either The shiny new things: Apart from tunables, support for A14/M1. Look at the SETUP… Continue reading New XNU source release

Linux on Apple Silicon Macs: first RFC submission

The first RFC got submitted to upstream to solicit comments about it. It’s quite minimal, only including the interrupt controller and secondary CPU startup drivers, with the core kernel changes needed to accommodate the hardware. Notably, it doesn’t include a UART driver. It isn’t ready for mainline inclusion yet. For technical reasons evaluated on iPhones… Continue reading Linux on Apple Silicon Macs: first RFC submission