TOPS-10 Monitor Calls Manual Volume 2 AA-K039D ... - Trailing-Edge

MTBSR. [MTAPE 7]
22.94 MTBSR. [MTAPE 7]
FUNCTION
Backspaces one record on a magtape device.
MTBSR. on an extended I/O channel.
Use FILOP. to perform an
CALLING SEQUENCE
MTBSR.
return
channo,
In the calling sequence, the program supplies the channo, which is the
number of a channel initialized for a magtape device.
RETURN
The monitor backspaces over one record on the device
the given channel.
associated with
EXAMPLES
MTBSR. 7,
This call backspaces over a record on the magtape associated with
channel 7.
RELATED CALLS
o
o
FILOP.
TAPOP.
COMMON PROGRAMMING ERRORS
Including an error return where none exists.
Forgetting to include a comma after the channel number.
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