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Reverse-engineering the Mali G78

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Graphics/Benchmarks

After a month of reverse-engineering, we’re excited to release documentation on the Valhall instruction set, available as a PDF. The findings are summarized in an XML architecture description for machine consumption. In tandem with the documentation, we’ve developed a Valhall assembler and disassembler as a reverse-engineering aid.

Valhall is the fourth Arm® Mali™ architecture and the fifth Mali instruction set. It is implemented in the Arm® Mali™-G78, the most recently released Mali hardware, and Valhall will continue to be implemented in Mali products yet to come.

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Also: Arm Mali "Valhall" Reverse-Engineering Started

Rosenzweig: Reverse-engineering the Mali G78

Mali-G78 GPU’s Valhall instruction set documentation released

  • Mali-G78 GPU’s Valhall instruction set documentation released after reverse-engineering work

    Collabora has been working on Panfrost open-source GPU driver for Arm Mali Bifrost and Midgard GPU for several years, and even getting official support from Arm.

    But apparently, that support does not include documentation for Mali-G78 GPU and other recent Arm Valhall Mali GPUs, as the company recently reverse-engineered Mali-G78 for about a month before releasing the documentation on the Valhall instruction set (PDF).

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