I think the problem is that even if everything's mapped correctly, you're still using DOSBOX; hence, you're in Protected Mode, which all old Moto DOS RSS relies on. I seem to recall that new fork called DOSBOX-X had some scheme to compensate to fake REAL Mode but I haven't studied it or anything. It's on github. In any case, I just said f@#$ it and got an old Toughbook w/a real serial port that accepted a floppy drive so I could boot real DOS and stop rolling the DOSBOX dice.
