Latest version of EASy68K emulator is v5.12.29 at the moment. You can find this information (and follow the updates) at EASy68K forums. You can download latest version from the URL below;
If you want some graphical simulation, you may like to use an emulator of a computer using 68K CPU like Commodore Amiga
or Atari ST
. I prefer UAE Amiga emulator. Of course you need to learn about Amiga hardware and stuff but you may also like the experience, test your 68k routines, see or hear the output.
My advice may not be suitable for your needs. But you already know about EASy68K and i know no better way than Amiga/Atari ST emulators myself.