Stepping through Rocky's Boots (to possibly P8 it)

[Steve Nickolas <usotsuki@buric.co>]

There are at least two revisions of Rocky's Boots.  This is the older one 
that uses a DOS 3.3 loader.

I'm trying to trace my way through the boot chain for this.  Basically. it 
does its loading through the ordinary PRINT CHR$(4) vector, but the code 
is hard to read because it does weird things with the stack and stuff.  (I 
detected a "Print Immediate" function, and what looks like a memory zapper 
of some sort.)

Just enough to figure out this part or that part is what I am trying for 
now.  If I can get each part working independently and rework their exit 
routines, I will try to make the program run on ProDOS.

-uso.