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unsupported/mtu.exe
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MTU - Magnetic Tape Utility
This program can perform 3 basic functions. 1) Determine density,
parity and block length of a given block on a tape. 2) Tape to tape
copy and verify. 3) Read and write single files in different modes.
There are 3 classes of commands; Mode setting commands, Action commands,
and other.
Mode setting commands:
SE` %T CONVERSION-MODE (TO) BINARY
Read/Write 36 bit words from file and write unchanged on tape.
SET CONVERSION-MODE (TO) EBCDIC (WITH) n (CHARACTERS PER LOGICAL RECORD)
Read/Write 7 bit ascii characters from file and convert to/from
EBCDIC on tape. Each line from file is truncated or padded to n
characters on tape.
SET TAPE BLOCK-LENGTH (TO) n
Set block length on magtape to n bytes. Byte size depends on
tape format.
SET TAPE DENSITY (TO) 1600
200
556
800
SYSTEM-DEFAULT
Set density to be used for magtape.
SET TAPE FORMAT (TO) CORE-DUMP
Read/Write magtape in CORE-DUMP mode. This converts between
five 8 bit bytes on tape and 36 bit word in file. In EBCDIC
conversion-mode, four 8 bit bytes are packed in each 36 bit
word which is the written on tape. The reverse happens for
read.
SET TAPE FORMAT (TO) INDUSTRY-COMPATIBLE
Read/Write magtape in INDUSTRY-COMPATIBLE mode. This transfers
8 bit bytes to/from tape. In EBCDIC conversion-mode, bytes
are transfered directly to/from tape. In BINARY mode, only
bits 0-31 of each word are written on tape as four sequential
bytes.
SET TAPE PARITY (TO) EVEN
ODD
Set parity to be used for magtape.
TAPE (UNIT IS) filespec
Select magtape for all action commands. Colon in device
name is required.
Action commands:
All action commands require that a "TAPE" command has been given.
ADVANCE BLOCK n (TIMES)
FILE
BACKSPACE BLOCK n (TIMES)
FILE
Execute the specified tape motion the specified number
of times (n defaults to 1).
CHECK BLOCK-LENGTH
Read current record and determine length in bytes.
Also prints length in words for CORE-DUMP mode.
CHECK TAPE-PARAMETERS
Read current record in all densities and parities. If
exactly 1 combination is successful, set that as in "SET"
commands and do "CHECK BLOCK-LENGTH". Otherwise print
error message and terminate command.
COPY (SELECTED TAPE TO NEW TAPE) filespec (WITH DENSITY) density (AND PARITY) parity
Selects a tape for output (filespec) and writes/reads it using
the specified density and parity. Density and parity default to
that of the input tape (selected with "TAPE" command).
Both tapes are rewound. The input tape is copied to the output
tape byte for byte. Both tapes are rewound again. Both tapes are
now read and compared. All I/O and verification errors are
printed, but do not terminate the operation. At the end of
both the copy and verify errors are summarized.
EOT
Advance magtape unti` 'l 2 consecutive end of file marks are seen.
READ (FROM TAPE INTO FILE) filespec
Read specified file and write on tape using currently
selected modes.
REWIND
Rewind magtape to load point.
UNLOAD
Rewind and unload magtape.
WRITE (ONTO TAPE FROM FILE) filespec
Read magtape and write into specified file using currently
selected modes.
Other commands:
EXIT
Exit program, return to EXEC.
HELP
Print this text.
WHAT (IS STATE OF) BOTH-TAPE-AND-CONVERSION-MODES
CONVERSION-MODE
TAPE-MODE
Print out current values of parameters set by "SET" command.
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?Command error:
?Illegal command.
$$ ?"TAPE" DEVICE MUST BE MAGTAPE.
?ERROR ON TAPE MOTION REQUEST: ?ILLEGAL REPEAT ARGUMENT.
?NO TAPE SELECTED.
Ip ?ERROR TRYING TO INHIBIT ERROR LOGGING: \" + , )+ !cWITH NO ERROR RETRY:
x WITH ERROR RETRY:
?COULD NOT DETERMINE DENSITY OR PARITY.
%DENSITY AND/OR PARITY AMBIGUOUS, WILL NOT CHECK LENGTH.
?COULDN'T CLOSE TAPE JFN: \" +$ , )+ !cNUMBER OF 8 BIT BYTES PER BLOCK = .
IN CORE-DUMP FORMAT THIS WOULD BE WORDS , WITH BYTE(S) IN THE LAST WORD ?INPUT ERROR ON TAPE: [OK]
@@ !?+ "o - NO GOOD.
H ;@ + "u200 BPI, ODD PARITY 200 BPI, EVEN PARITY 556 BPI, ODD PARITY 556 BPI, EVEN PARITY 800 BPI, ODD PARITY 800 BPI, EVEN PARITY 1600 BPI, ODD PARITY @@ !F+ -{?TAPE WRITE ERROR: \" +N , ),^ ,~ I ;?ERROR CLOSING FILE JFN: \" +S + )?ERROR CLOSING TAPE JFN: \" +W + )%NUMBER OF EBCDIC TRANSLATION ERRORS = %NUMBER OF SHORT BLOCKS = %NUMBER OF TRUNCATED INPUT LINES = " Z 1B H,~ \" +6 , )@ ,~ ?OUTPUT DEVICE MUST BE MAGTAPE.
%BEGIN COPY.
, $; !H+ $6+ $: !H+ $OUTPUT x+sINPUT ?ERROR ON TAPE AT BLOCK CAUSE OF ERROR: ?VERIFY ERROR AT BLOCK (OCTAL)
FILE NUMBE` +R (DECIMAL), BLOCK (OCTAL) IN FILE.
NUMBER ERRORS ON INPUT TAPE = NUMBER ERRORS ON OUTPUT TAPE = ?ERROR WRITING END OF FILE: $ 4 )\" , + )%END OF COPY.
?ERROR CLOSING OUTPUT TAPE: \" , , )+ !c%BEGIN VERIFY.
: !H+ $C, $+ ,: !B " B !A: !@+ $DH ;: !H+ $I, $+ , : !@+ $IDATA COMPARE ERROR IN BLOCK.
END OF FILE ON INPUT TAPE, NO END OF FILE ON OUTPUT TAPE.
END OF TAPE ON INPUT, NO END OF TAPE ON OUTPUT.
END OF FILE ON OUTPUT TAPE, NO END OF FILE ON INPUT TAPE.
END OF TAPE ON OUTPUT, NO END OF TAPE ON INPUT.
BLOCK LENGTHS DO NOT MATCH.
INPUT BLOCK LENGTH = BYTES (DECIMAL).
OUTPUT BLOCK LENGTH = BYTES (DECIMAL).
, (~+ !c?ERROR REWINDING INPUT TAPE: \" ,I + )?ERROR REWINDING OUTPUT TAPE: \" ,M + )%END VERIFY.
NUMBER OF VERIFY ERRORS = CONVERSION-MODE IS EBCDIC WITH CHARACTERS PER LOGICAL RECORD (DECIMAL) TAPE FORMAT IS UNKNOWN .
TAPE BLOCK-LENGTH IS %NO TAPE SELECTED.
TAPE DENSITY IS BPI.
TAPE PARITY IS %TAPE IS WRITE-LOCKED.
\" ,k + (A%TAPE AT END OF FILE.
\" ,o + (B%BEGINNING OF TAPE.
\" ,s + (C%END OF TAPE.
\" ,w + (D%TAPE DEVICE ERROR.
\" ,z + (E%TAPE DATA ERROR.
\" ,~ + (F%ILLEGAL RECORD LENGTH ON TAPE.
\" - + (G?ERROR READING TAPE STATUS: ?BLOCK LENGTH LARGER THAN INTERNAL BUFFER.
\" -
,~ %WARNING - BLOCK LENGTH IS NOT INTEGER MULTIPLE OF LOGICAL RECORD SIZE.
%WARNING - USING CORE-DUMP FORMAT WITH EBCDIC DATA.
%WARNING - USING EVEN PARITY.
%WARNING - USING BINARY MODE WITH INDUSTRY-COMPATIBLE MODE
AND BLOCK LENGTH NOT MULTIPLE OF 4 BYTES.
?ERROR OPENING TAPE: ?ERROR SETTING TAPE MODES: ?ERROR READING OR SETTING TAPE STATUS: ?ERROR OPENING FILE: INTERNAL CONFUSION, ILLEGAL ARGUMENTS TO ERSTR UNDEFINED ERROR NUMBER
?UNEXPECTED END OF FILE INTERRUPT IGNORED.
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