TPC - Fast DOS-11 Tape Copy
		===========================

			Users' Guide
			============

 This  program  will copy a complete DOS-11 magtape to a Files-11 disk
 and  store it there in a special image mode, from which it can create
 one or more copies of the tape (must faster than FLX ever could).

 The command format is:-

	TPC Output-filespec=Input-filespec<switches>

 where one  of the 'filespecs' must be a magtape device (e.g. MT:) and
       the other the name of an image file on disk.

 Legal switches are:-

       /BL:nnnn - Specifies  an  initial  allocation specification for
                  the image file if a disk is the output device.
       /SA:nnnn - Specifies  a  secondary allocation specification for
                  the image file if a disk is the output device.
       /CO      - Specifies that the disk file is to be contiguous


 So that, for instance,

		TPC BACKUP=MT:

 will create the file BACKUP (.DOS by default) from the magtape on MT:, and

		TPC MT:=BACKUP

 would then create an exact copy of the original magtape onto the tape
 now mounted on MT:.

 Note  that  TPC will only handle DOS format tapes (i.e. those created
 by FLX) and can only copy a complete tape at a time.


 TPC can report the following errors:-

 1.  TPC - DISK I/O ERROR.  CODE = n

     TPC encountered an error while reading from/writing to the disk.

 2.  TPC - MAGTAPE I/O ERROR.  CODE = n

     TPC encountered an error while reading from/writing to the magtape.

 3.  TPC - COMMAND LINE INPUT ERROR

     TPC encountered an error in reading the commandline.

 4.  TPC - COMMAND LINE SYNTAX ERROR

     TPC encountered an error when trying to parse the command line.

 5.  TPC - INVALID SWITCH

     The  commandline contained a switch that TPC could not recognise,
     or a file specification that it could not parse.

 6.  TPC - OPEN ERROR ON OUTPUT FILE

     A file was specified as output, but TPC encountered an error when
     it tried to open it.

 7.  TPC - OPEN ERROR ON INPUT FILE

     A  file was specified as input, but TPC encountered an error when
     it tried to open it.

 8.  TPC - SPECIFY 1 FILE & 1 MAGTAPE DEVICE

     The commandline either specified magtape as both input and output
     device, or a disk file as both input and output device.