MAP V01.00
~~~~~~~~~~
  MAP is a program that allows you to map RTEM Virtual System devices
to the host system files.  Named directories and extended logical names are
supported under RSX-11M-PLUS and P/OS.

Usage:
  .MAP
	- Print Virtual System device mapping.

  .MAP [VSn[:]] file[/options]
	- Map host system file to the Virtual System device.

Options:
  /ASSIGN:name[:]
	- Assign a logical name to the mapped device.

  /CREATE[:size]
	- Create a new file with the size specified (if not, default RTEM
	  size is used).

  /READONLY
	- Map existing file in read only mode.

  /TEMPORARY
	- Create a new temporary file.

All the options can be abbreviated to 1 character.

  There are some differences in the behavior of MAP and JOAT. Unlike JOAT,
MAP does not initialize the files it creates. You must use the INITIALIZE
command for that.  If the /READONLY option is specified, MAP opens an existing
file in read-only mode, so you cannot make a mapped VS device writable using
JOAT /W:NO.  If you need this functionality, map the device in read-write
mode, then disable writing to it with JOAT /W.

Examples
~~~~~~~~
.MAP LB:[1,1]RT11SH/READ
?MAP-I-Mapped to device VS1

.MAP VS5: SYS$LOGIN:TEMP/CR:10240/TEMP/ASSIGN:TMP

.INI TMP:/NOQ

.MAP
Device  LUN Mode    Size  File
------- --- ------- ----- -----------------------------------------------
VS0:    2   RO/SHR  6284  DU0:[1,1]RT11SH.DSK;32
        3   RW/PVT        DU1:RT11PR.DSK;1
VS1:    6   RO      5328  DU0:[1,1]RT11SH.DSK;32
VS5:    7   RW/TMP  10240 DU1:[FORM]TEMP.DSK;0
VS7:    5   RW      65535 DU1:[1,127]WORK.DSK;1

.