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Update to gcc6809lw patch which may help compilation of some sources
Due to persistent random compiler crashes and errors related to "M_REGS",
this patch update (4.6.4-2) essentially removes the varius constraints
allowing the "soft registers" in most operations. It was causing more
problems than it solved and it is not clear that the logic behind those soft
registers even makes sense any more.
This patch also fixes a bogus comparison related to selecting the right size
for a constant. Instead of the excessively clever comparison scheme that was
previously in use, the comparisons have been replaced with straight forward
comparisions for the top and bottom of the relevant 2's complement ranges.
author | William Astle <lost@l-w.ca> |
---|---|
date | Mon, 20 Jul 2015 22:32:41 -0600 |
parents | e95f07cbce4e |
children |
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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 >Motorola S-Record</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REL="HOME" TITLE="LW Tool Chain" HREF="index.html"><LINK REL="UP" TITLE="Output Formats" HREF="c21.html"><LINK REL="PREVIOUS" TITLE="ASCII Hexadecimal" HREF="x32.html"><LINK REL="NEXT" TITLE="Intel Hex" HREF="x41.html"></HEAD ><BODY CLASS="SECTION" 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="x32.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" >Chapter 2. Output Formats</TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="x41.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECTION" ><H1 CLASS="SECTION" ><A NAME="AEN36" >2.4. Motorola S-Record</A ></H1 ><P >This ASCII format consists of a series of CR+LF terminated "records" of ASCII text. Each record has the following structure: a start-of-record character "S", an ASCII record type digit (0-9), a two-digit ASCII hex byte count, a four-digit ASCII hex address, an optional sequence of two-digit ASCII hex data values, and a two-digit ASCII hex checksum. The LW tool chain issues only S0, S1, S5 and S9 record types. S1 records are limited to maximum of 16 data bytes in length, and paragraph alignment of addresses is favored. The address sequence of the S-Records directly follows that of the source file; multiple ORG directives in the source code may result in out-of-sequence addresses in the S-Record output. </P ><P >Motorola S-Record format is a standard ASCII format accepted by most memory device programming equipment. It is particularly useful when the assembled code output is destined to reside within an EPROM or Flash memory device, for example.</P ><P >LWASM can output this format since version 4.10. LWLINK can output this format since version 4.11.</P ></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="x32.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="x41.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >ASCII Hexadecimal</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="c21.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Intel Hex</TD ></TR ></TABLE ></DIV ></BODY ></HTML >