Hi all,
I'm not seeing it, but then again, I may be looking in the wrong place. Does the default monitor or the DOS 3.3. monitor do single step? If so, how? If not, what did folks do back when? Even the KIM-1 had single step, so, it must've been pretty common...
Thanks,
Will
Depends upon which machine and ROM version you have.
The original Apple II monitor does have an S command to single step code in the Monitor. That was removed however to add other features and was not restored until ROM00 of the //c. There are however various 3rd-party ROM images that also have the Step and Trace commands, for example ROMeX and ROM4X, APPLEII.EDM, etc.
There are also hardware boards available to do this as well.