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Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc, X86)
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Paolo Bonzini 56afe9f919 target/i386: do not set LM for 32-bit emulation '-cpu host/max' 
32-bit targets by definition do not support long mode; therefore, the
bit must be masked in the features supported by the accelerator.

As a side effect, this avoids setting up the 0x80000008 CPUID leaf
for

qemu-system-i386 -cpu host

which since commit 5a140b255d ("x86/cpu: Use max host physical address
if -cpu max option is applied") would have printed this error:

qemu-system-i386: phys-bits should be between 32 and 36 (but is 48)

Backports 5ea9e9e239db83391a39c09f1de63c4099c20df5
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bindings python: handle UC_ERR_TIMEOUT, so sample_x86.py behaves like sample_x86.c 2020-01-14 09:53:10 -05:00
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README.md

Unicorn Engine

Join the chat at https://gitter.im/unicorn-engine/chat

Build Status Build status

Unicorn is a lightweight, multi-platform, multi-architecture CPU emulator framework based on QEMU.

Unicorn offers some unparalleled features:

  • Multi-architecture: ARM, ARM64 (ARMv8), M68K, MIPS, SPARC, and X86 (16, 32, 64-bit)
  • Clean/simple/lightweight/intuitive architecture-neutral API
  • Implemented in pure C language, with bindings for Crystal, Clojure, Visual Basic, Perl, Rust, Ruby, Python, Java, .NET, Go, Delphi/Free Pascal and Haskell.
  • Native support for Windows & *nix (with Mac OSX, Linux, *BSD & Solaris confirmed)
  • High performance via Just-In-Time compilation
  • Support for fine-grained instrumentation at various levels
  • Thread-safety by design
  • Distributed under free software license GPLv2

Further information is available at http://www.unicorn-engine.org

License

This project is released under the GPL license.

Compilation & Docs

See docs/COMPILE.md file for how to compile and install Unicorn.

More documentation is available in docs/README.md.

Contact

Contact us via mailing list, email or twitter for any questions.

Contribute

If you want to contribute, please pick up something from our Github issues.

We also maintain a list of more challenged problems in a TODO list.

CREDITS.TXT records important contributors of our project.