223cc6685e
git-svn-id: svn://svn.compuextreme.de/Viitor/V963/Viitor_cc65@5933 504e572c-2e33-0410-9681-be2bf7408885
49 lines
1.5 KiB
HTML
49 lines
1.5 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<HTML>
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<HEAD>
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<META NAME="GENERATOR" CONTENT="LinuxDoc-Tools 0.9.20">
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<TITLE>Atari Lynx specific information for cc65: Memory layout</TITLE>
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<LINK HREF="lynx-4.html" REL=next>
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<LINK HREF="lynx-2.html" REL=previous>
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<LINK HREF="lynx.html#toc3" REL=contents>
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</HEAD>
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<BODY>
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<A HREF="lynx-4.html">Next</A>
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<A HREF="lynx.html#toc3">Contents</A>
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<HR>
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<H2><A NAME="s3">3.</A> <A HREF="lynx.html#toc3">Memory layout</A></H2>
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<P>cc65 generated programs with the default setup run with the I/O area and the
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kernal enabled, which gives a usable memory range of $400 - $BE3F.
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All boot ROM entry points may be called directly without additional code.</P>
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<P>Special locations:</P>
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<P>
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<DL>
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<DT><B>Text screen</B><DD><P>No conio support is currently available for the Lynx.</P>
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<DT><B>Keyboard</B><DD><P>The Lynx "flabode" keys, Opt 1, Pause and Opt 2 are implemented using the
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conio interface. The only characters the keyboard is able to produce are
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'R' for Restart (Opt 1 + Pause), 'F' for flip (Opt 2 + Pause),
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'P' for pause, '1' for Opt 1, '2' for Opt 2, '3' for Opt 1 + Opt 2 and
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'?' for all keys down at the same time.</P>
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<DT><B>Stack</B><DD><P>The C runtime stack is located at $BE3F and growing downwards.</P>
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<DT><B>Heap</B><DD><P>The C heap is located at the end of the program and grows towards the C
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runtime stack.</P>
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</DL>
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</P>
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<HR>
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<A HREF="lynx-4.html">Next</A>
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<A HREF="lynx.html#toc3">Contents</A>
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