Daily Archives: 2026-08-27

IBM announces dual-ISA processor: ARM and IBM Z code running natively on the same cores

Source: OSNews

Article note: This is very IBM. Dual-architecture parts with insane memory corner-turning hardware to keep them consistent, like they were doing with BlueGene Power CPU+Nvidia GPU on single memory machines a decade or two ago. Kind of weird that it's AArch64 and now Power since the Z and big Power lines already share a lot of functional units, but Arm is obviously the bigger platform at this point. And, of course, you can still run Cobol-on-MVS jobs that were written in the 70 as though it were native.

Built on a 2 nanometer technology node, the processor’s design will contain 11 high-performance cores operating at more than 5.7 GHz, AI inference accelerators for in-transaction fraud detection, a dedicated on-chip data processing unit for I/O acceleration, and a large cache architecture for demanding enterprise workloads. The chip is architected to not contain separate Arm and IBM cores: each processor core can natively execute Arm and IBM Z, or Arm and LinuxONE, instructions concurrently while prioritizing the platform’s established performance, security, encryption, and availability characteristics. IBM Z and LinuxONE platforms are capable of scaling to hundreds of cores and tens of terabytes of memory.

↫ IBM press release

IBM is still doing some amazing chip architecture design. ServeTheHome has more details of how this works:

A key choice here is that IBM implemented AArch64 in full hardware rather than through translation. This design uses a little-endian Arm implementation alongside big-endian z/Architecture, with AArch64 v9.3, SVE and SVE2 support, and 2,792 implemented AArch64 instructions. IBM also claims Arm SystemReady compliance, which matters for how much off-the-shelf Arm software this core can absorb. This is absolutely crazy technology. Arm software sees a native Arm processor. Arm runs unmodified, out-of-the-box, and onto a standard Arm platform. IBM said the 2792 AArch64 instructions are more than twice the Z instructions. IBM made a funny quip about “reduced” in RISC.

↫ Patrick Kennedy at ServeTheHome

This is bonkers technology. We can only dream of this ever serving a home.

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Haiku R1/beta6 released

Source: OSNews

Article note: BeOS/Haiku is always one of my favorite alternate timelines that you can actually experience. Beyond the fundamental neat of Be, the Haiku folks have been doing cool things informed by experiences of other platforms, and building amazing Be-ish package management schemes and whatnot. It doesn't sound like there are ton of changes to B6 since whatever Nightly I currently have in a VM to play with, but the sign of progress and confidence is great. I'm ever more tempted to try doing some real work on a Haiku box.

It’s always a special day on OSNews when Haiku has a new release. While OSNews was founded in 1997, it wasn’t until 2001, when Eugenia took over and relaunched the site, that we really got going. Eugenia came from BeNews, a popular BeOS news website, which shut down in the wake of Be, Inc’s infamous “focus shift” away from BeOS as a general purpose desktop operating system. BeOS continues to have a special place on OSNews ever since.

Today marks the release of Haiku R1/beta6, the first official Haiku release in two years. As such, this new beta covers a monumental amount of progress since beta5, progress I’ve reported on diligently. The highlights of this new beta include a port of Firefox (including branding) and many of its forks, much improve support for Qemu, a new memory allocated largely based on the one from OpenBSD, and improved support for various filesystems. Of course, there’s a massive list of performance improvements, memory management changes, as well as a truly massive number of new application ports.

It’s important to note, as I usually do, that while these Haiku beta releases serve as patches of calm in rough seas, Haiku is generally stable and capable enough that using the project’s nightly releases is usually a totally acceptable way of installing and running the operating system. If you’re not comfortable running nightly releases, however, and haven’t tried Haiku since the previous beta, you’re in for a massive overall improvement.

Everybody loves Haiku.

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