Using KSAM/XL and KSAM 64 (32650-90886)

260 AppendixB
BASIC/V Intrinsics
BKUNLOCK
1850 CALL BKERROR(S$,M$)
1860 PRINT M$
1870 GOTO 3620
1880 DOEND
1890 REM
1900 REM THE PROGRAM CONTINUES