Tunguska is a computer emulator and virtual machine that uses numerical base three (ternary) number system for its lowest-level operations instead of the commonly used base two (binary) number system. Its goal is to provide a useful experimental platform, on par with early personal computers.
The Machine Emulator, or tme, provides a general-purpose framework for computer emulation. The goal is to create a large library of modules, each emulating a specific computer chip, bus, board, etc. These modules offer standard interfaces that allow you to connect them together to create a whole machine emulation with a minimum of effort. It is possible to emulate a Sun 2/120 and a 3/150, both with NetBSD, and a SparcStation 2 with NetBSD or SunOS 4.1.4 (aka Solaris 1.1.2).
msx-emul is a simple MSX(-1) emulator. It currently only supports "screen 0" (the 40/80x24 ascii screen) and "screen 2", memory mappers, msx-dos megarom and konami 5 megarom, printer, rudimentary audio, and almost complete keyboard emulation. It is mainly designed for testing the z80ex ZiLOG z80 emulation library.
The Intel Software Development Emulator is a functional emulator for new and upcoming instruction set extensions. The emulator is based on the Pin dynamic binary instrumentation system (and XED). It emulates the new instructions in the SSE4, AES, PCLMULQDQ, and RTM, BMI1, and BMI2 Intel AVX, AVX2, and AVX512 instruction set extensions. This allows developers to gain familiarity with Intel's upcoming instruction set extensions.