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Fix bad usage of sprintf()
Usage of sprintf() to append to a string in the form of
sprintf(buf, "%s...", buf...) is undefined, regardless whether it
worked on a lot of older systems. It was always a bad idea and it
now breaks on current glibc and gcc development environments.
The moral: if any of your code uses sprintf() in a way similar to
the above, fix it. It may not fail in a benign way.
author | William Astle <lost@l-w.ca> |
---|---|
date | Sun, 10 May 2020 22:38:24 -0600 |
parents | 52af0aa54fe5 |
children | 8c6c3363e18e |
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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 >Dialects</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="LWASM" HREF="c62.html"><LINK REL="PREVIOUS" TITLE="LWASM" HREF="c62.html"><LINK REL="NEXT" TITLE="Source Format" HREF="x238.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="c62.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" >Chapter 3. LWASM</TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="x238.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECTION" ><H1 CLASS="SECTION" ><A NAME="AEN229" >3.2. Dialects</A ></H1 ><P > LWASM supports all documented MC6809 instructions as defined by Motorola. By default, this does not include any MC6800 compatibility instructions. As of LWASM 4.11, those compatibility instructions can be enabled using the <CODE CLASS="PARAMETER" >--6800compat</CODE > option or the <CODE CLASS="PARAMETER" >6800compat</CODE > pragma. It also supports all known HD6309 instructions. While there is general agreement on the pneumonics for most of the 6309 instructions, there is some variance with the block transfer instructions. TFM for all four variations seems to have gained the most traction and, thus, this is the form that is recommended for LWASM. However, it also supports COPY, COPY-, IMP, EXP, TFRP, TFRM, TFRS, and TFRR. It further adds COPY+ as a synomym for COPY, IMPLODE for IMP, and EXPAND for EXP. </P ><P >By default, LWASM accepts 6309 instructions. However, using the <CODE CLASS="PARAMETER" >--6809</CODE > parameter, you can cause it to throw errors on 6309 instructions instead.</P ><P >The standard addressing mode specifiers are supported. These are the hash sign ("#") for immediate mode, the less than sign ("<") for forced eight bit modes, and the greater than sign (">") for forced sixteen bit modes.</P ><P >Additionally, LWASM supports using the asterisk ("*") to indicate base page addressing. This should not be used in hand-written source code, however, because it is non-standard and may or may not be present in future versions of LWASM.</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="c62.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="x238.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >LWASM</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="c62.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Source Format</TD ></TR ></TABLE ></DIV ></BODY ></HTML >