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The ao486 is an x86 compatible Verilog core implementing all features of a 486 SX.
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The ao486 is an x86 compatible Verilog core implementing all features of a 486 SX.
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The core was modeled and tested based on the Bochs software x86 implementation.
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The core was modeled and tested based on the Bochs software x86 implementation.
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Together with the 486 core, the ao486 project also contains a SoC capable of
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Together with the 486 core, the ao486 project also contains a SoC capable of
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booting the Linux kernel version 3.13 and Microsoft Windows 95.
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booting the Linux kernel version 3.13 and Microsoft Windows 95.
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### Current status
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- 31 March 2014 - initial version 1.0.
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- 19 August 2014 - driver_sd update, ps2 fix.
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### Features
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### Features
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The ao486 processor model has the following features:
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The ao486 processor model has the following features:
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- pipeline architecture with 4 main stages: decode, read, execute and write,
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- pipeline architecture with 4 main stages: decode, read, execute and write,
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- all 486 instructions are implemented, together with CPUID,
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- all 486 instructions are implemented, together with CPUID,
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