Research V3 development

Work on file man/man4/tm.4

Co-Authored-By: Dennis Ritchie <dmr@research.uucp>
Synthesized-from: v3

diff --git a/man/man4/tm.4 b/man/man4/tm.4
new file mode 100644 (file)
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--- /dev/null
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+.pa 1
+.he 'TM (IV)'6/12/72'TM (IV)'
+.ti 0
+NAME           tm -- TM-11/TU-10 magtape interface
+.sp
+.ti 0
+DESCRIPTION    mt?\b\b\b___
+is the DEC TU10/TM11 magtape.
+When opened for reading or writing,
+the magtape is rewound.
+A tape consists of a
+series of 512 byte records terminated by an
+end-of-file.
+Reading less than 512 bytes
+causes the rest of a record to be ignored.
+Writing less than a record causes
+null padding to 512 bytes.
+When the magtape is closed
+after writing,
+an end-of-file is written.
+.sp
+Seek has no effect on the magtape.
+The magtape can only be opened once at
+any instant.
+.sp
+.ti 0
+FILES          /dev/mt0        selected drive 0
+.sp
+.ti 0
+SEE ALSO       mt(I)
+.sp
+.ti 0
+BUGS           Seek
+should work on the magtape.
+Also, a provision of having the tape open for
+reading and writing should exist.
+A multi-file and multi-reel facility should
+be incorporated.