FLEX-ES (formerly OPEN/370) provides a System/390 on a Pentium. It includes system-mode operation, runs 8 popular S/370 OS's. On a 2-processor Pentium-II/400MHz, it provides 7 to 8 MIPS on one processor and I/O functions on the other processor. They also sell installed systems (hardware/software turnkey systems).


FLEX-ES home page.

From instruction-set simulation and tracing