From 80b69204d7140c0c467120ffe388a6e1fcbbee87 Mon Sep 17 00:00:00 2001 From: Ken Thompson Date: Thu, 15 Feb 1973 12:48:01 -0500 Subject: [PATCH] Research V3 development Work on file man/man4/tm.4 Co-Authored-By: Dennis Ritchie Synthesized-from: v3 --- man/man4/tm.4 | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 man/man4/tm.4 diff --git a/man/man4/tm.4 b/man/man4/tm.4 new file mode 100644 index 0000000000..470af7b9d7 --- /dev/null +++ b/man/man4/tm.4 @@ -0,0 +1,38 @@ +.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?___ +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. -- 2.20.1