On 10/31/2012 06:25 PM, Johnny Billquist wrote: FWIW, for those who like Forth, there's a Forth implementation available as a run-time system on RSTS/E. It's part of the unsupported stuff on V10.1 (and possibly somewhat earlier, maybe as early as V9.0, I forgot). I did the port; I used it among other things for implementing an interactive crash dump analyzer *very* loosely modeled on VMS "SDA". Speaking of Forth, there is also FiG-Forth. It runs under RSX, RT-11 and standalone. I would assume it should work fine under RSTS/E as well, based on that, but I don't know for sure. Can be found on MIM::DU:[FORTH] The Forth that Paul mentioned is in fact FIG-Forth. -Dave -- Dave McGuire, AK4HZ New Kensington, PA