There is one more thing I would like to mention. I think it would be better to useinstr instead ofinst as an abbreviation forinstruction, in both commands and source code. From what I have seen in the project,inst is also used forinstance, whereasinstr is primarily used for instruction.

Usinginstr in the source code sounds like a good idea because that's howdis does it. However, ingdb andlldb, I think they just usestepi andnexti for the LONG version and that kind of makes sense. I think I'll go with that -si andstepi, do not usestepinst orstepinstr.