PCem

PCem is an x86 personal computer emulator written by Sarah Walker.

A dynamic recompiler is available, optional for 486 and mandatory for Pentium processors, providing accurate performance for those processors. Support for ACPI BIOS has been added on v15.

Supported guest operating systems

 * MS-DOS and compatible operating systems
 * Microsoft Windows versions up to Windows Vista
 * OS/2
 * Linux distributions that support running at least on a Pentium
 * BeOS
 * NeXTSTEP 3.1 to 3.3, OPENSTEP 4.0 to 4.2 (including Apple Rhapsody developer releases)

Emulated hardware

 * CPU: Any CPU from an 8086/8088 to a Pentium Pro.
 * Graphics card: MDA, CGA, EGA, Hercules, IBM VGA, as well as a couple Trident cards, Tseng ET4000AX, Tseng ET4000/W32p, S3 Trio 64, 3dfx Voodoo, S3 Virge, Cirrus GD5429.
 * Sound card: PCjr, Tandy, Adlib, Adlib Gold, Sound Blaster 1.x, 2, Pro, 16, AWE32, Gravis Ultrasound, Windows Sound System, Innovation SSI-2001, Game Blaster.