Texas Instruments 990 User Manual page 31

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commands are placed by the DX 10 task into an intenask message queue. The task identifies the
queue with a hexadecimal number between 00 and FF. This queue identification number is assigned
as the Emulator's COMMAND ID: during Emulator activation.
3.3 RECORD OF THE SESSION
A continuous record of the communicaticn session is made while the Emulator is operating. This
record is called a log and includes Emulator prompts, operator responses, command file commands,
intenask message queue commands, and Emulator messa!: output. The log can be output to the
following: ·
• Video display terminal
• Hard-copy display terminal
• Output device
• Sequential or relative record file
• lntenask message queue
While in operator mode, the record of the session can only
be
output on the operator terminal. If the
operator terminal is a hard copy device, a permanent record of the session may be maintained. If the
operator terminal is a VDT, the record of the session is restricted to what is currently displayed on
the screen. Previously displayed information is not retrievable. In command file mode, the record of
the session can be output to any file. to any available output device (including the operator ••rminal),
or to any intenask message queue specified. In intenask message queue mode, the record can be
output to any file, to any available output device (including the operator terminal), or to an intertask
message queue.
When using the Send Request feature, the record of the session is shared between the two Emulators
according to their panicipation in the data exchange (e.g., the Emulator transmitting the request
logs the prompts, responses, and messages associated with the transmission; the EmulatC'r receiving
the request and then making the requested transmission logs the prompts, responses, and messages
associated with the reception and the requested transmission). Each Emulator outputs the logged
information to the file,. device, or queue that it is currently using for log output.
3.3.J PRIMARY LOG DESTINATION. The primary log destination is determined by the
operator's response to the LOG ID: prompt. The primary log destination may be one of the
following:
• Video display terminal
• Hard-copy display terminal
• Output device
• Sequential or relative record file
• lntenask message queue
A log directed to the video display terminal cannot be printed. A log directed to an intertask message
queue can be printed only if a task is programmed to read the queue and print it.
3-3
Digital Systems Group