Cleary, J.G.Lomow, G.A.Unger, Brian WXiao, Z.2008-02-272008-02-271985-06-01http://hdl.handle.net/1880/45811An implementation of virtual time using Jefferson's Time Warp mechanism is discussed. The context for the implementation is a multi-lingual distributed programming environment with an underlying message passing system, called Jipc, which is accessible to Ada, C, Lisp, Prolog, and Simula programs. The intention is that distributed programs written using Jipc can be simulated using virtual time with only small changes to the original source code. The system is layered so that the different languages and different roll-back mechanisms can be supported.EngComputer Scienceunknown1985-196-910.11575/PRISM/30548