Moss-os - A hobby x86 operating system in C and ASM.
Moss is a hobby x86 operating system, written in C and a sprinkle of ASM. My thanks go to the hobbist kernel development community at OSDev.
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VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as home use. VirtualBox runs on Windows, Linux, Macintosh, and Solaris hosts and supports a large number of guest operating systems. So, for example, you can run Windows and Linux on your Mac. VirtualBox is a so-called hosted hypervisor. It requires an existing operating system to be installed. It can thus run alongside existing applications on that host.
The Xen hypervisor is a layer of software running directly on computer hardware replacing the operating system thereby allowing the computer hardware to run multiple guest operating systems concurrently. It suppors x86, x86-64, Itanium, Power PC, and ARM processors allow the Xen hypervisor to run on a wide variety of computing devices.
Moss is a collection of utilites I created for my other OSS software, all combined into one package for better code reuse and maintenance. Moss includes GUI classes (Tri state combo boxes, Password dialogs, etc), EXIF tools, a Logging class, etc.
Bochs is a portable x86 PC emulation software package that emulates enough of the x86 CPU, related AT hardware, and BIOS to run Windows, Linux, *BSD, Minix, and other OS's, all on your workstation.
Valgrind is an award-winning instrumentation framework for building dynamic analysis tools. There are Valgrind tools that can automatically detect many memory management and threading bugs, and profile your programs in detail. You can also use Valgrind to build new tools.
Desquirr is a decompiler plugin for Interactive Disassembler Pro. It is currently capable of simple data flow analysis of binaries with Intel x86 machine code.
An implementation of a light-weight stack-less jit compiler for x86 (32/64), ARM (v5/Thumb2), PowerPC (32/64), MIPS (32) and SPARC (32) architectures. It generates machine code from a platform independent (simplified) assembly language.
ChibiOS/RT is a free and efficient RTOS designed for deeply embedded applications. It offers a comprehensive set of kernel primitives and supports many architectures: ARM7, Cortex-M0, Cortex-M3, Cortex-M4, PowerPC e200z, STM8, AVR, MSP430, ColdFire, H8S, x86.
SMHasher is a test suite designed to test the distribution, collision, and performance properties of non-cryptographic hash functions - it aims to be the "DieHarder" of hash testing, and does a pretty good job of finding flaws with a number of popular hashes. Murmurhash3 (new version) is faster, more robust, and its variants can produce 32- and 128-bit hash values efficiently on both x86 and x64 platforms.
GNU Classpath provides core class libraries for use with virtual machines and compilers for the java programming language. GNU Classpath 1.0 will be fully compatible with the 1.1 and 1.2 API specifications, in addition to having significant compatibility with the 1.3, 1.4, 1.5 and 1.6 APIs.