The following is the original 'announcement' of the availablility of the pdp8 and pdp11 simulators to a private list. It has been edited to remove certain sensitive pieces of information: - - - - - I am pleased to announce the (internal field test) for the PDP-8 and PDP-11 simulators. To get the sources and the simulated OS8 and RT11 disks, copy xxxxxx to your system and proceed as outlined in these notes. Sketchy documentation on the simulators is in file 0simdoc.txt [ed. - the OS8 and RT11 disks are not available due to licensing issues ... if you have a disk, simply copy the disk to an image file and use that.] 1. The simulators work on both VAX/VMS and on Alpha/OSF1. [ed. - and on mips/ultrix] 2. Each simulator includes a CPU, memory, reader, punch, terminal, line clock, RK05 disk, and RX01 disk. (The PDP-8 has an RF08, and the PDP-11 has an RL11.) 3. There's a VMS build file for each simulator: pdp8_build builds PDP8.EXE pdp11_build builds PDP11.EXE [ed. - A preliminary Makefile is provided which will build the simulators, but may not be as concise or as full-purpose as it could be] The build files include the debugger, remove that if you want. For OSF/1, the build command lines are: cc pdp8*.c scp*.c -lm -o pdp8 cc pdp11*.c scp*.c -o pdp11 4. The simulators are only partially tested. I would APPRECIATE YOUR FEEDBACK. Feel free to try small programs to test the EAE, FP11, and devices. If you find bugs, feel free to look through the sources and send me the fixes...:-) [ed. - The author has set up a mail alias to receive such mail. You can send mail to him at dsmaint@pa.dec.com] 5. To get the simulated operating systems up and running (OSF/1 shown): % pdp8 PDP-8 simulator V1.0 sim> att rk0 os8.dsk sim> boot rk0 . <-- OS/8 prompt This is pretty much instantaneous on either VAX or Alpha. You must first set the date (note that OS/8 REQUIRES CAPITAL LETTERS FOR INPUT) and then you can type HELP or DIR to explore further: .DA 14-MAR-94 .DIR For the PDP-11 and RT11: % pdp11 PDP-11 simulator V1.0 sim> att rk0 rt11.dsk sim> boot rk0 RT11SJ (S) V5.04 . . <-- RT11 prompt Note that on a slow VAX (eg, a 3100) it takes 45 seconds to get to the banner, and another 15-20 seconds to get to the prompts. On Alpha/OSF1, it takes a few seconds to reach the prompt. You can then set the date, type HELP or DIR, and so on. RT11 accepts lower case input. The simulator is stopped by typing ^E (control-E). This can be changed through the WRU register.