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Playdate developers detail low-level C optimization tricks for emulator performance

A developer working with collaborator stonerl on a full-speed Game Boy emulator for the Playdate console has published a set of advanced optimization techniques discovered during that project. The tips cover how the Playdate's CPU and small instruction cache behave, including the finding that compiling with -Os instead of -O3 and shrinking core code to fit within the 4KB (or 16KB on Rev B) instruction cache can dramatically boost speed.

Dutch computer museums showcase vintage hardware and interactive exhibits

Marcin Wichary visited three Dutch computer museums: the HomeComputerMuseum in Helmond with over 500 working vintage computers, the Bonami SpelComputer Museum in Zwolle housing thousands of machines including mainframes and arcade games, and a barn-based collection of DEC computers in a remote location. Each museum offered a unique experience, from interactive displays to extensive collections of historic technology.

Qualcomm, Arm bring DLSS-style AI graphics upscaling to next-gen mobile chips

Qualcomm unveiled the Snapdragon 8 Elite Extreme Gen 6 at Snapdragon Summit 2026, featuring new Adreno Neural Fusion GPU technology that uses AI to upscale resolution, generate extra frames, and extend battery life during gaming. Separately, Arm introduced its Mali G2-Ultra NX GPU with similar AI upscaling, frame generation, and a denoiser for effects like ray tracing, which will appear in chips from companies such as MediaTek.

ARMSX3 emulator update adds CHD format support to shrink PS3 game sizes on Android

The ARMSX3 PS3 emulator for Android has released version 1.0.6, adding support for CHD disc images, a compressed format that reduces file sizes compared to standard ISOs. The developers cite examples like Demon's Souls shrinking from 8.76GB to 6.25GB, and Bleach Soul Resurrection dropping from 4GB to 1.8GB. The update also includes improved frame generation and fewer stutters in games using the PS3's job system.

Pyxel, an open-source Python retro game engine, shown on HN

A developer has released Pyxel, a retro-style game engine for Python that limits output to 16 colors and 4 simultaneous sound channels to mimic old gaming consoles. The project includes built-in art and sound editors, is licensed under MIT, and is free to use. It is maintained by a single developer who relies on GitHub stars to keep the project active.

Ataraxos AI defeats top-ranked Stratego player Pim Niemeijer 15-1

Researchers from Carnegie Mellon, MIT, NYU and Stanford built an AI called Ataraxos that beat Pim Niemeijer, widely regarded as the best Stratego player ever, 15 games to one with four draws. The system was trained using just 16 GPUs and a few thousand dollars, a tiny fraction of what projects like DeepMind's earlier Stratego attempts required.

Gears of War E-Day shows unusually heavy CPU demands in Unreal Engine 5

Tom's Hardware testing found Gears of War E-Day pins CPU utilization at 80-90%, unlike most Unreal Engine 5 titles which show little CPU scaling. The Ryzen 7 9800X3D delivered 42% higher performance than the Ryzen 5 7600X at 1080p on the High preset, and the scaling held even at the Ultra graphics preset, persisting throughout the early hours of the game regardless of scene complexity.

Gears of War: E-Day debuts amid turmoil at Xbox

Gears of War: E-Day, a prequel set 14 years before the original Gears of War, follows a younger Marcus Fenix during 'emergence day,' when the Locust Horde first attacks humanity. The game retains the series' close-quarters cover-shooter combat and tasks players with defending strongholds, escorting caravans, and rescuing survivors as the planet Sera is devastated.

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