GXemul is an instruction-level machine emulator.
In addition to simulating CPUs, surrounding hardware components are also simulated, in some cases well enough to run real (unmodified) operating systems.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.