Advanced Teletext System User Guide
Advanced Teletext System User Guide
Advanced Teletext System User Guide
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
*DATA<br />
The <strong>Teletext</strong> Operating <strong>System</strong> Commands<br />
Description<br />
This command transfers the full data for the current page to a given memory<br />
location. For details of the data format, see Chapter 6.<br />
Syntax<br />
*DATA <br />
where is an area of memory reserved for the data. The memory of the<br />
current language processor is used, unless an address in the form FFFFxxxx is<br />
used.<br />
Example<br />
*TTXON<br />
*S4C<br />
*PAGE 400<br />
OSCLI("DATA"+STR$~(Buffer))<br />
Notes<br />
This command will wait forever if the current page cannot be found. ESCAPE<br />
will exit the command if ESCAPE is enabled.<br />
The area of memory reserved for the data must be 2K long, i.e. 2048 bytes.<br />
*DATE<br />
Description<br />
This command causes the date, as transmitted in the television data packet to be<br />
displayed.<br />
Syntax<br />
*DATE<br />
Example<br />
*TTXON<br />
*BBC1<br />
*DATE<br />
Notes<br />
In order to give the Adaptor time to grab the date, which is only transmitted once<br />
a second, you must leave a gap of at least 1.5 seconds between changing channel<br />
and asking for the date.<br />
If the Television Service Data Packet (TSDP) is not transmitted, an error<br />
message is displayed instead of the date.<br />
23
Change language