I kind of remember how this works, but you can confirm it. The issue is that you are going to emulate a hunk of code which expects to return.
How do you do this? I am pretty sure the emulator fakes a call to the vga rom entry point, and places a hlt instruction after that call, so that when the call returns, you get a halt and a dramatic message. Possibly this message could be a little less stress-inducing :-)
ron