I require some help with a program which may be of interest to other hobby users. The program is: SHOW EMULATOR or SHOWEM and runs under: (a) RT-11 both UnMapped and Mapped Monitors (b) TSX-Plus (c) RUST both RUST/SJ and RUST/XM (d) RSTS/E (e) RTEM-11 The current Emulators which are detected and displayed are SimH, Ersatz-11 and V11. If anyone knows of any other PDP-11 emulators which can also be included, that would be of great interest, especially if access to that emulator for testing is possible. I have asked for help in the past about this and the only other PDP-11 emulator which runs RT-11 compatible programs is Charon which unfortunately no longer seems to be available or even running. If anyone can help expand the list, it would be appreciated!!! Unfortunately, for (d) and (e), I do not have any information on how to access the IOPAGE registers since SHOWEM requires access to SR0 (177572) and SR1 (177574) in addition to the PSW (177776). I do not believe that RTEM-11 will ever allow a User program to gain access to the IOPAGE registers, however, RSTS/E may allow such access. Does anyone who is reading this post know if access to the IOPAGE registers is possible under RSTS/E for a program running in RT-11 compatibility' mode? And do you also know how it is done? If there is no solution, then I will make to current SHOWEM available to any hobby users who are interested. Otherwise, I would prefer to delay until the RSTS/E solution is implemented. Jerome Fine