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Add support for 6800 compatibility instructions.
The occasional program uses the 6800 compatibility instructions since they
are actually specified by Motorola in at least some documentation. They
advertised the 6809 as source compatible with the 6800.
This mode is not enabled by default, however. It is my belief that receiving
an error when using a non-6809 instruction is more useful since it is
unlikely that much 6800 source code is being assembled for the 6809 these
days. Nevertheless, the --6809compat option is present for just those
purposes so one does not have to resort to using macros (which would work
equally well in most cases).
author | William Astle <lost@l-w.ca> |
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date | Tue, 15 Apr 2014 10:57:34 -0600 |
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >LWLINK</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REL="HOME" TITLE="LW Tool Chain" HREF="index.html"><LINK REL="PREVIOUS" TITLE="Assembler Modes and Pragmas" HREF="x628.html"><LINK REL="NEXT" TITLE="Linker Operation" HREF="x827.html"></HEAD ><BODY CLASS="CHAPTER" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >LW Tool Chain</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="x628.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="x827.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="CHAPTER" ><H1 ><A NAME="AEN727" ></A >Chapter 4. LWLINK</H1 ><P >The LWTOOLS linker is called LWLINK. This chapter documents the various features of the linker.</P ><DIV CLASS="SECTION" ><H1 CLASS="SECTION" ><A NAME="AEN730" >4.1. Command Line Options</A ></H1 ><P >The binary for LWLINK is called "lwlink". Note that the binary is in lower case. lwlink takes the following command line arguments.</P ><P ></P ><DIV CLASS="VARIABLELIST" ><DL ><DT ><CODE CLASS="OPTION" >--decb</CODE >, <CODE CLASS="OPTION" >-b</CODE ></DT ><DD ><P >Selects the DECB output format target. This is equivalent to <CODE CLASS="OPTION" >--format=decb</CODE ></P ></DD ><DT ><CODE CLASS="OPTION" >--output=FILE</CODE >, <CODE CLASS="OPTION" >-o FILE</CODE ></DT ><DD ><P >This option specifies the name of the output file. If not specified, the default is <CODE CLASS="OPTION" >a.out</CODE >.</P ></DD ><DT ><CODE CLASS="OPTION" >--format=TYPE</CODE >, <CODE CLASS="OPTION" >-f TYPE</CODE ></DT ><DD ><P >This option specifies the output format. Valid values are <CODE CLASS="OPTION" >decb</CODE > and <CODE CLASS="OPTION" >raw</CODE ></P ></DD ><DT ><CODE CLASS="OPTION" >--raw</CODE >, <CODE CLASS="OPTION" >-r</CODE ></DT ><DD ><P >This option specifies the raw output format. It is equivalent to <CODE CLASS="OPTION" >--format=raw</CODE > and <CODE CLASS="OPTION" >-f raw</CODE ></P ></DD ><DT ><CODE CLASS="OPTION" >--script=FILE</CODE >, <CODE CLASS="OPTION" >-s</CODE ></DT ><DD ><P >This option allows specifying a linking script to override the linker's built in defaults.</P ></DD ><DT ><CODE CLASS="OPTION" >--section-base=SECT=BASE</CODE ></DT ><DD ><P >Cause section SECT to load at base address BASE. This will be prepended to the built-in link script. It is ignored if a link script is provided.</P ></DD ><DT ><CODE CLASS="OPTION" >--map=FILE</CODE >, <CODE CLASS="OPTION" >-m FILE</CODE ></DT ><DD ><P >This will output a description of the link result to FILE.</P ></DD ><DT ><CODE CLASS="OPTION" >--library=LIBSPEC</CODE >, <CODE CLASS="OPTION" >-l LIBSPEC</CODE ></DT ><DD ><P >Load a library using the library search path. LIBSPEC will have "lib" prepended and ".a" appended.</P ></DD ><DT ><CODE CLASS="OPTION" >--library-path=DIR</CODE >, <CODE CLASS="OPTION" >-L DIR</CODE ></DT ><DD ><P >Add DIR to the library search path.</P ></DD ><DT ><CODE CLASS="OPTION" >--debug</CODE >, <CODE CLASS="OPTION" >-d</CODE ></DT ><DD ><P >This option increases the debugging level. It is only useful for LWTOOLS developers.</P ></DD ><DT ><CODE CLASS="OPTION" >--help</CODE >, <CODE CLASS="OPTION" >-?</CODE ></DT ><DD ><P >This provides a listing of command line options and a brief description of each.</P ></DD ><DT ><CODE CLASS="OPTION" >--usage</CODE ></DT ><DD ><P >This will display a usage summary of each command line option.</P ></DD ><DT ><CODE CLASS="OPTION" >--version</CODE >, <CODE CLASS="OPTION" >-V</CODE ></DT ><DD ><P >This will display the version of LWLINK.</P ></DD ></DL ></DIV ></DIV ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="x628.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="x827.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Assembler Modes and Pragmas</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" > </TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Linker Operation</TD ></TR ></TABLE ></DIV ></BODY ></HTML >