Master Emulation ROM 2.01
=========================
Provides Master MOS emulation for BBC B/B+. May need *FX200,3 then <Break>
to clear memory on first loading to reset.

Provides the following Master commands
--------------------------------------
CAT       ADFS      APPEND    BASIC     BUILD     CLOSE     CONFIGURE CODE
CREATE    DUMP      DELETE    EXEC      EX        FREE      FX        FORM
FORMAT    GOIO      GO        HELP      INFO      IGNORE    INSERT    KEY
LOAD      LIST      LINE      LIBFS     MOTOR     MOVE      MAP       OPT
PRINT     RUN       REMOVE    ROM       ROMS      SAVE      SHADOW    SHOW
SHUT      SPOOL     SPOOLON   SRDATA    SRLOAD    SRREAD    SRROM     SRSAVE
SRWRITE   STATUS    TAPE      TV        TIME      TYPE      UNPLUG    VERIFY
X

Additional commands
-------------------
LCONFIG    - loads CMOS settings from '&.CONFIG'
MODELB     - disables Master Emultation ROM and resets
NOID <n>   - if <n><>0, OSBYTE/HELP returns machine ID as Master
RBOOT <n>  - sends service call 3 (BootFS) to specified ROM
SCONFIG    - saves CMOS settings to '&.CONFIG'
SETNV      - states or changes where CMOS settings stored
'<command> - bypass MER command processing

Additional Configure commands
-----------------------------
Acorn      - use Acorn shadow screen system
Aries      - use Aries shadow screen system
Dfs        - DNFS defaults to DFS
Nfs        - DNFS defaults to NFS
Solidisk   - use Solidisk shadow screen system
Watford    - use Watford shadow screen system
VDUVec n   - ?

Temporary filing systems
------------------------
Filenames can be prefixed by -fsname- to select a temporary filing system.
The following are set up by default:

CFS     TAPE    ROM     DISC    DISK    NET     ADFS    VFS

Changed OSWRCH calls
--------------------
MODE changes are remembered so that a Soft Break reselects the current
screen mode.

Changed and added OSBYTE calls
------------------------------
&00, &06, &14, &16, &17, &44, &45, &6B, &6C, &6D, &70, &71, &72, &81, &85,
&8C, &8D, &8E, &8F, &A1, &A2, &A4, &A5, &EF.

Additional OSWORD calls
-----------------------
The following OSWORD calls are implemented:
OSWORD &0E - Read real-time clock
OSWORD &42 - Sideways RAM transfer, called by *SRREAD and *SRWRITE
OSWORD &43 - Sideways RAM load/save, called by *SRLOAD and *SRSAVE

Real Time Clock
---------------
OSWORD &0E will read the time from a fileserver if present.

Notes
-----
Uses various locations in memory that may clash with other programs and
commands.