BSS symbols addresses must still be relocated, Execute() requires C:Run on 1.3, and yes.
I had a little time now. I've started from scratch and gave LoadSeg a fixed string for now, and gave jsr 4(a3) a copy of the entry registers. This works and I can ponder what else I should fix to make it proper. I already do folder navigation and stuff in another part of the program I'll plug this into, so I don't need that.
I guess the jsr 4(a3) needs the same stuff you get on CLI program entry, but I haven't seen it documented exactly. a2/a5/a6 comes from an offset in dosbase, and maybe some process / CLI struct. And a stack. But I'll avoid fixed-size stackframes as in System0.
Have a good one.
Gn o/