223cc6685e
git-svn-id: svn://svn.compuextreme.de/Viitor/V963/Viitor_cc65@5933 504e572c-2e33-0410-9681-be2bf7408885
43 lines
1.2 KiB
HTML
43 lines
1.2 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
|
|
<HTML>
|
|
<HEAD>
|
|
<META NAME="GENERATOR" CONTENT="LinuxDoc-Tools 0.9.20">
|
|
<TITLE>Nintendo Entertainment System specific information for cc65: Memory layout</TITLE>
|
|
<LINK HREF="nes-4.html" REL=next>
|
|
<LINK HREF="nes-2.html" REL=previous>
|
|
<LINK HREF="nes.html#toc3" REL=contents>
|
|
</HEAD>
|
|
<BODY>
|
|
<A HREF="nes-4.html">Next</A>
|
|
<A HREF="nes-2.html">Previous</A>
|
|
<A HREF="nes.html#toc3">Contents</A>
|
|
<HR>
|
|
<H2><A NAME="s3">3.</A> <A HREF="nes.html#toc3">Memory layout</A></H2>
|
|
|
|
|
|
<P>cc65 generated programs with the default setup run with the I/O area and a
|
|
CHR bank enabled, which gives a usable memory range of $8000 - $FFF3.
|
|
All boot ROM entry points may be called directly without additional code.</P>
|
|
<P>Special locations:</P>
|
|
<P>
|
|
<DL>
|
|
<DT><B>Text screen</B><DD><P>The text screen is located at VRAM $2000.</P>
|
|
|
|
<DT><B>Stack</B><DD><P>The C runtime stack is located at $7FFF and growing downwards.</P>
|
|
|
|
<DT><B>Heap</B><DD><P>The C heap is located at the end of the program and grows towards the C
|
|
runtime stack.</P>
|
|
|
|
</DL>
|
|
</P>
|
|
|
|
|
|
|
|
|
|
<HR>
|
|
<A HREF="nes-4.html">Next</A>
|
|
<A HREF="nes-2.html">Previous</A>
|
|
<A HREF="nes.html#toc3">Contents</A>
|
|
</BODY>
|
|
</HTML>
|