Bitfields for DR DOS file access rights:
Bit(s)	Description	)
 0	owner delete requires password
 1	owner execution requires password (FlexOS)
 2	owner write requires password
 3	owner read requires password
 4	group delete requires password
 5	group execution requires password (FlexOS)
 6	group write requires password
 7	group read requires password
 8	world delete requires password
 9	world execution requires password (FlexOS)
 10	world write requires password
 11	world read requires password