223cc6685e
git-svn-id: svn://svn.compuextreme.de/Viitor/V963/Viitor_cc65@5933 504e572c-2e33-0410-9681-be2bf7408885
51 lines
1.9 KiB
HTML
51 lines
1.9 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<HTML>
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<META NAME="GENERATOR" CONTENT="LinuxDoc-Tools 0.9.20">
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<TITLE>cc65 Compiler Intro: The compiler</TITLE>
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<LINK HREF="intro-3.html" REL=next>
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<LINK HREF="intro-1.html" REL=previous>
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<LINK HREF="intro.html#toc2" REL=contents>
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</HEAD>
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<BODY>
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<A HREF="intro-3.html">Next</A>
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<A HREF="intro-1.html">Previous</A>
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<A HREF="intro.html#toc2">Contents</A>
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<HR>
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<H2><A NAME="s2">2.</A> <A HREF="intro.html#toc2">The compiler</A></H2>
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<P>The compiler translates one C source into one assembly source, for each
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invocation. It does <EM>not</EM> create object files directly, and it is <EM>not</EM>
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able to translate more than one file per run.</P>
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<P>In the example above, we would use the following command line, to translate
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<CODE>hello.c</CODE> into <CODE>hello.s</CODE>:</P>
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<P>
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<BLOCKQUOTE><CODE>
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<PRE>
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cc65 -O -I ../../include -t c64 hello.c
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</PRE>
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</CODE></BLOCKQUOTE>
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</P>
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<P>The <CODE>-O</CODE> switch tells the compiler to do an additional optimizer run, which
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is usually a good idea, since it makes the code smaller. If you don't care
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about the size, but want to have slightly faster code, use <CODE>-Oi</CODE> to inline
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some runtime functions.</P>
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<P>The <CODE>-I</CODE> switch gives a search path for the include files. You may also set
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the environment variable <CODE>CC65_INC</CODE> to the search path.</P>
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<P>The <CODE>-t</CODE> switch is followed by the target system name.</P>
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<P>If the compiler does not complain about errors in our "hello world" program, we
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will have a file named "<CODE>hello.s</CODE>", in our directory, that contains the
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assembly source for the <B>hello</B> module.</P>
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<P>For more information about the compiler, see
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<A HREF="cc65.html">cc65.html</A>.</P>
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<HR>
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<A HREF="intro-3.html">Next</A>
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<A HREF="intro-1.html">Previous</A>
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<A HREF="intro.html#toc2">Contents</A>
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