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GXemul is a full-system computer emulator, emulating processors (ARM, MIPS, M88K, PowerPC, and SuperH) and surrounding peripherals, in some cases well enough to let unmodified guest operating systems run as if they were running on real hardware.
The world's first evidence-oriented programming language
Quorum is a programming language designed in empirical studies with humans to be intuitive and easy to use. It is a Java VirtualMachine language with full Integrated Development and Debugger support built into the Sodbeans project. Version 4.0 includes support for graphics, 3D sound support, and Lego robotics.
Avrora is a suite of tools for analyzing and debugging programs for AVR microcontrollers. It has support for a sensor platforms such as Mica2 and MicaZ, allowing wireless network simulation and allows dynamic instrumentation and static analysis.
The Glulx Runtime Instrumentation Project (GRIP) provides debugging tools for authors of interactive fiction (IF) by building on the capabilities of the Glulx virtualmachine.
GRIP has migrated to https://github.com/i7/i7grip. This site will no longer be updated.
ClassGhost is a small utility that can redefine class files within a running JVM. ClassGhost allows you to directly inject the newly compiled class files in to the VM without interrupting the running application. Works with multiple as well as remote VMs
A multi-ISA "assembly debugger" with graphical and terminal frontends. Currently sporting LC-3, Georgia Tech's LC-2200, and brain*. MIPS support is in the making, to compete with SPIM. (Windows, Linux, MacOSX; LC-3 simulator and LC-2200 simulator)
NEmu is an emulator/simulator for exploring computer architecture. It
provides a virtualmachine, a debugger, and simulations of various cpus
and hardware. NEmu is built on top of ALib, my own application framework.
The XPS is a scalable platform for meta-programming and domain engineering. It provides a virtualmachine, compiler, and runtime library that make it possible to efficiently develop, debug, and run programs based on XPL (eXtensible Programming Language)
zdb is an effort to create a source level debugger for Inform, the modern programming language of the Z-machine. The Z-machine is the virtualmachine created by Infocom for distributing text adventures.
jDiSeq is a recording facility for call sequences within any Java VirtualMachine. Typical usage is to generate UML (Unified Modeling Language) sequence diagrams of a running system - client or serverside.
LLVM is a unique compiler infrastructure designed for the optimization of programs from arbitrary programming languages. Compilation in C and C++ programs is supported using a parser based on GCC 3.4. Backends exist for X86, Sparc, PowerPC and "C".
xdProf is a tool that captures and analyzes stack traces sent at a fixed interval from Java Virtual Machines in a distributed system. The xdProf client uses a C/C++ Java VirtualMachine Profiling Interface (JVMPI) library and works on many platforms.