223cc6685e
git-svn-id: svn://svn.compuextreme.de/Viitor/V963/Viitor_cc65@5933 504e572c-2e33-0410-9681-be2bf7408885
124 lines
3.8 KiB
HTML
124 lines
3.8 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>Commodore 610 specific information for cc65: Platform specific header files</TITLE>
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<LINK HREF="cbm610-5.html" REL=next>
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<LINK HREF="cbm610-3.html" REL=previous>
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<LINK HREF="cbm610.html#toc4" REL=contents>
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<BODY>
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<A HREF="cbm610-5.html">Next</A>
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<A HREF="cbm610-3.html">Previous</A>
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<A HREF="cbm610.html#toc4">Contents</A>
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<HR>
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<H2><A NAME="s4">4.</A> <A HREF="cbm610.html#toc4">Platform specific header files</A></H2>
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<P>Programs containing CBM 610 specific code may use the <CODE>cbm610.h</CODE> or
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<CODE>cbm.h</CODE> header files. Using the later may be an option when writing code
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for more than one CBM platform, since it includes <CODE>cbm610.h</CODE> and declares
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several functions common to all CBM platforms.</P>
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<H2><A NAME="ss4.1">4.1</A> <A HREF="cbm610.html#toc4.1">CBM 610 specific functions</A>
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</H2>
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<P>The functions listed below are special for the CBM 610. 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>peekbsys</LI>
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<LI>peekwsys</LI>
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<LI>pokebsys</LI>
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<LI>pokewsys</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="cbm610.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="cbm610.html#toc4.3">Hardware access</A>
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</H2>
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<P>The following pseudo variables declared in the <CODE>cbm610.h</CODE> header file do
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allow 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><B>Note:</B> All I/O chips are located in the system bank (bank 15) and can
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therefore not be accessed like on other platforms. Please use one of the
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<CODE>peekbsys</CODE>, <CODE>peekwsys</CODE>, <CODE>pokebsys</CODE> and <CODE>pokewsys</CODE> functions to
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access the I/O chips. Direct reads and writes to the structures named below
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will <EM>not</EM> work!</P>
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<P>
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<DL>
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<DT><B><CODE>CRTC</CODE></B><DD><P>The <CODE>CRTC</CODE> structure allows access to the CRTC (the video controller).
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See the <CODE>_6545.h</CODE> header file located in the include directory for the
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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
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sound interface device). See the <CODE>_sid.h</CODE> header file located in the
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include directory for the declaration of the structure.</P>
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<DT><B><CODE>ACIA</CODE></B><DD><P>Access to the ACIA (the RS232 chip) is available via the <CODE>ACIA</CODE> variable.
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See the <CODE>_6551.h</CODE> header file located in the include directory for the
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declaration of the structure.</P>
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<DT><B><CODE>CIA</CODE></B><DD><P>Access to the CIA chip is available via the <CODE>CIA</CODE> variable. See the
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<CODE>_6526.h</CODE> header file located in the include directory for the
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declaration of the structure.</P>
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<DT><B><CODE>TPI1, TPI2</CODE></B><DD><P>The two 6525 triport chips may be accessed by using this variable. See the
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<CODE>_6525.h</CODE> header file located in the include directory for the
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declaration of the structure.</P>
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</DL>
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</P>
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<HR>
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<A HREF="cbm610-5.html">Next</A>
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