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atari.sgml: Add documentation for Atari clock_... functions implementation.

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Christian Groessler 2018-11-15 22:25:38 +01:00 committed by Oliver Schmidt
parent ee6b2edd72
commit bc6127ffef
1 changed files with 13 additions and 2 deletions
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doc/atari.sgml
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@ -29,7 +29,7 @@ supports XL type or newer machines (excluding the 600XL).
The <tt/atarixl/ runtime makes the whole 64K of memory available, with the
exception of the I/O area at &dollar;D000 - &dollar;D7FF. Since the
<tt/atarixl/ runtime has some <ref name="limitations" id="limitations">, it is
<tt/atarixl/ runtime has some <ref name="limitations" id="xllimitations">, it is
recommended to use the <tt/atari/ target unless lack of memory dictates the
use of the <tt/atarixl/ target.
@ -634,7 +634,18 @@ interface module.
<sect>Limitations<p>
<sect1><tt/atarixl/<#if output="info|latex2e"> limitations</#if><label id="limitations"<p>
<sect1><tt/Realtime clock/<label id="realtimeclock"<p>
Access to the real time clock is supported only when running on SpartaDOS-X.
There needs to be an RTC driver installed. This is normally the case
in the default installation (CONFIG.SYS) of SpartaDOS-X.
A missing RTC driver in SpartaDOS-X is not supported, and the program
may crash when calling the <tt/clock_settime()/ or <tt/clock_readtime()/
functions.
The resolution of the RTC driver is 1 second.
<sect1><tt/atarixl target/<#if output="info|latex2e"> limitations</#if><label id="xllimitations"<p>
<itemize>
<item>The display is cleared at program start and at program termination. This is a side