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TAPIN reads foreign MAGtapes and converts the data to standard DEC format.
TAPIN never rewinds a tape. Positioning is up to you.
All type-ins may be in either upper or lower case.
"Input device:" Logical or physical device name. Must be a MAGtape. Colon (:) is
If the tape is a 7-track tape, the program will ask:
"Parity:" Normally EVEN for BCD tapes, else ODD. If you get a lot of parity
errors, try reading the tape again with the other parity setting.
E or O is sufficient.
"Code:" ASCII (8-bit ASCII), BCD, EBCDIC, FIELDATA, RSX-11, IMAGE, SIXBIT,
VARIABLE EBCDIC or 11. IMAGE reads 32 bits per word, left justified,
if the tape is 9-track, else 36 bits. 11 reads PDP-11 data and
transposes 8-bit bytes.
RT11 PIP tapes have header and trailer labels. After each RT11
file header, TAPIN asks: "Copy?(Y/N)", and "ASCII/binary:". If
you choose to copy a file, ASCII files are compressed from 8-bit
to 7-bit, but binary files are left intact, 32 bits per word,
A, B, E, F, I, R, S, V or 11 is sufficient.
"Logical record length:" Usually 72, 80, 120 or 132, generally a factor of the
block length. If you type just a carriage return, the program will use
the block length.
"Delete sequence numbers?" Some data files have sequence numbers on the
right-hand end of each record. Trimming these off saves file space,
and makes it possible to suppress trailing spaces besides.
Reply: Y or N.
If you delete sequence numbers, the program will ask:
"Last column to keep:" Type the last column of good text, usually 72.
"Suppress trailing spaces?" Reply Y or N. YES saves file space, but if the data
has meaningful characters out to the end of each line, say NO and save
the computer some work.
"Output device:" Logical or physical name. Colon (:) optional.
The following question is only asked if output is to a directory device:
"Filename.ext:" Type file name and extension, separated by a period (.).
The following question is asked only if the output device is a MAGtape:
"How many files?" Tell how many consecutive files are to be copied before
After the program has read one file, it will ask:
"More?" Reply Y if you want to read more files from this tape, else N.
Waiting...2 ^C's to Exit
TAPE mounted, MTA015 used
Input device: TAPE
[Input MAGtape density: 800, reel ID: 9999]
[Block length 800 bytes]
Logical record length: 80
Delete sequence numbers? Y
Last column to keep: 72
Suppress trailing spaces? Y
Output device: DSK
[End of file.]
[Odd parity is set.]
[Block number 4]
[23 logical records, 3 blocks read. ]
[0 soft read errors.]
[0 hard read errors.]
[MTA015:9999 READ(C/H/S) = 11329/1/0 WRITE(C/H/S) = 1836/0/0]