223cc6685e
git-svn-id: svn://svn.compuextreme.de/Viitor/V963/Viitor_cc65@5933 504e572c-2e33-0410-9681-be2bf7408885
109 lines
3.1 KiB
HTML
109 lines
3.1 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>Commodore 64 specific information for cc65: Platform specific header files</TITLE>
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<LINK HREF="c64-5.html" REL=next>
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<LINK HREF="c64-3.html" REL=previous>
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<LINK HREF="c64.html#toc4" REL=contents>
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</HEAD>
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<BODY>
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<A HREF="c64-5.html">Next</A>
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<A HREF="c64-3.html">Previous</A>
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<A HREF="c64.html#toc4">Contents</A>
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<HR>
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<H2><A NAME="s4">4.</A> <A HREF="c64.html#toc4">Platform specific header files</A></H2>
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<P>Programs containing C64 specific code may use the <CODE>c64.h</CODE> or <CODE>cbm.h</CODE>
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header files. Using the later may be an option when writing code for more than
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one CBM platform, since it includes <CODE>c64.h</CODE> and declares several functions
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common to all CBM platforms.</P>
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<H2><A NAME="ss4.1">4.1</A> <A HREF="c64.html#toc4.1">C64 specific functions</A>
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</H2>
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<P>The functions listed below are special for the C64. See the
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<A HREF="funcref.html">function reference</A> for declaration and usage.</P>
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<P>
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<UL>
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<LI>get_ostype</LI>
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</UL>
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</P>
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<H2><A NAME="ss4.2">4.2</A> <A HREF="c64.html#toc4.2">CBM specific functions</A>
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</H2>
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<P>Some functions are available for all (or at least most) of the Commodore
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machines. See the
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<A HREF="funcref.html">function reference</A> for
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declaration and usage.</P>
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<P>
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<UL>
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<LI>cbm_close</LI>
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<LI>cbm_closedir</LI>
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<LI>cbm_k_setlfs</LI>
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<LI>cbm_k_setnam</LI>
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<LI>cbm_k_load</LI>
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<LI>cbm_k_save</LI>
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<LI>cbm_k_open</LI>
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<LI>cbm_k_close</LI>
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<LI>cbm_k_readst</LI>
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<LI>cbm_k_chkin</LI>
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<LI>cbm_k_ckout</LI>
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<LI>cbm_k_basin</LI>
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<LI>cbm_k_bsout</LI>
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<LI>cbm_k_clrch</LI>
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<LI>cbm_load</LI>
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<LI>cbm_open</LI>
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<LI>cbm_opendir</LI>
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<LI>cbm_read</LI>
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<LI>cbm_readdir</LI>
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<LI>cbm_save</LI>
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<LI>cbm_write</LI>
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<LI>get_tv</LI>
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</UL>
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</P>
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<H2><A NAME="ss4.3">4.3</A> <A HREF="c64.html#toc4.3">Hardware access</A>
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</H2>
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<P>The following pseudo variables declared in the <CODE>c64.h</CODE> header file do allow
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access to hardware located in the address space. Some variables are
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structures, accessing the struct fields will access the chip registers.</P>
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<P>
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<DL>
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<DT><B><CODE>VIC</CODE></B><DD><P>The <CODE>VIC</CODE> structure allows access to the VIC II (the graphics
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controller). See the <CODE>_vic2.h</CODE> header file located in the include
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directory for the declaration of the structure.</P>
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<DT><B><CODE>SID</CODE></B><DD><P>The <CODE>SID</CODE> structure allows access to the SID (the sound interface
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device). See the <CODE>_sid.h</CODE> header file located in the include directory
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for the declaration of the structure.</P>
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<DT><B><CODE>CIA1, CIA2</CODE></B><DD><P>Access to the two CIA (complex interface adapter) chips is available via
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the <CODE>CIA1</CODE> and <CODE>CIA2</CODE> variables. The structure behind these variables
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is explained in <CODE>_6526.h</CODE>.</P>
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<DT><B><CODE>COLOR_RAM</CODE></B><DD><P>A character array that mirrors the color RAM of the C64 at $D800.</P>
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</DL>
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</P>
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<HR>
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<A HREF="c64-5.html">Next</A>
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<A HREF="c64-3.html">Previous</A>
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<A HREF="c64.html#toc4">Contents</A>
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</BODY>
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</HTML>
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