Which Dec Emulation is the MOST useful and Versatile?

Hi Paul, Thank you for the info. I tend to get emulation and simulation a bit confused. Just so I understand simulation correctly, hardware emulation is when the functionality of the hardware is actually implemented in hardware somehow like VHDL in an FGPA and hardware simulation is when a program implements the functionality of the hardware in a software program no matter what hardware the hardware simulator is running on. I think I got this now. Correct? Thanks a bunch for setting me straight. Kip Koon computerdoc at sc.rr.com http://www.cocopedia.com/wiki/index.php/User:Computerdoc -----Original Message----- From: Paul Koning [mailto:paulkoning at comcast.net] Sent: Thursday, October 26, 2017 4:29 PM To: Kip Koon; General Discussion: On-Topic and Off-Topic Posts Subject: Re: Which Dec Emulation is the MOST useful and Versatile? wrote: ... I would call that a software emulator; the fact that it runs on some microprocessor eval board doesn't make a difference. Running SIMH on a Beaglebone would be analogous (though easier). When you said "hardware emulator" I figured you meant an FPGA implementation of a VHDL or Verilog model of the machine. There are a bunch of those for a variety of DEC computers. One I have looked at is this one: http://pdp2011.sytse.net/wordpress/ which incidentally is also configurable to implement a choice of PDP11 model. paul