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45 lines
2.7 KiB
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Advanced builds
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===============
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The `86Box Jenkins <https://ci.86box.net/job/86Box/>`_ provides all kinds of pre-release testing builds for advanced users. These are linked to the `86Box git repository on GitHub <https://github.com/86Box/86Box>`_; a new build is produced with the latest source code every time the repository is updated.
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.. important:: Testing builds are development snapshots which may contain bugs, unfinished features or other issues. These should only be used if you know what you're doing.
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Variants
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--------
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86Box builds are available in a number of variants. The Jenkins page will automatically detect the recommended variant for the system you're viewing it on, but if you're downloading builds for a different system (or you have disabled JavaScript), use the guide below to select a variant:
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* The **Old Recompiler** is recommended. The **New Recompiler** is in beta; you may experience bugs and performance loss with it.
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* The Old Recompiler is not available for the ARM architecture. You must select the New Recompiler for running 86Box on ARM Linux systems.
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* On **Windows**, **x64** is the only option, as native ARM builds are currently not provided.
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* On **Linux**, select **x64** or **ARM** according to your system's architecture.
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* On **macOS**, **Universal** supports both Intel and Apple Silicon Macs.
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* The New Recompiler is always used on Apple Silicon due to its ARM architecture, even if the Old Recompiler is selected.
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Discontinued variants
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^^^^^^^^^^^^^^^^^^^^^
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These variants are no longer built by Jenkins and can only be :doc:`compiled from source <buildguide>`.
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* 32-bit variants (**x86** and **ARM32**) as of September 3rd 2024.
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* These variants were eliminated to better focus development on relevant 64-bit architectures, since systems old enough to be 32-bit-only lack the performance for a satisfactory emulation experience.
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* Debug variants (**86Box-Debug**) as of April 2nd 2023.
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* These variants were compiled with debug symbols and reduced optimizations to help with running the emulator under ``gdb`` or other debuggers. They were eliminated as the setup process for debugging grew closer to just compiling from source instead.
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* Dev variants (**86Box-Dev** and **86Box-DevODR**) as of November 18th 2021.
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* These variants contained incomplete and experimental features subject to change at any time, with the -Dev variant also containing the New Recompiler beta.
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* Optimized variants (**86Box-Optimized**) as of March 18th 2021.
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* These variants' aggressive microarchitecture-specific optimizations provided very little performance improvement (within margin of error on modern CPUs) while introducing bugs and other incorrect behavior.
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