Сгенерил как есть на 11/23-Plus (реализация forth32 на FPGA), системный диск RK
(вставил "DEVDEF <RK>,MAPIO"). Результат:
?TSX-F-Fatal system error at 123410
KRE-KMON read error
Arg. value = 000000
Seg. value = 000027
Overlay: EX2
SP at time of crash = 141464

В файле TSGEN больше нет секции
;
; Enable 22-bit addressing for the 11/23-Plus, 11/24, 11/44, and 11/73.
; This feature requires the use of either the 22-bit extended memory
; mapping for the LSI or the UNIBUS. This feature must be enabled to
; allow TSX-Plus to utilize more than 256Kb of memory.
;
EXTMCH = 1 ;1==>Allow 22-bit addressing; 0==>Do not use 22-bit.