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Guard against single operand multiplication when detecting like terms
This *shouldn't* happen, but it apparently does in some pathological cases
so guard against a single operand multiplication to prevent a crash.
author | William Astle <lost@l-w.ca> |
---|---|
date | Mon, 04 Nov 2024 23:48:23 -0700 |
parents | fc072f6cde09 |
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 >LW Tool Chain</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REL="NEXT" TITLE="Introduction" HREF="c13.html"></HEAD ><BODY CLASS="BOOK" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="BOOK" ><A NAME="AEN1" ></A ><DIV CLASS="TITLEPAGE" ><H1 CLASS="TITLE" ><A NAME="AEN2" >LW Tool Chain</A ></H1 ><H3 CLASS="AUTHOR" ><A NAME="AEN4" ></A >William Astle</H3 ><H3 CLASS="AUTHOR" ><A NAME="AEN7" ></A >LWTools Contributors </H3 ><P CLASS="COPYRIGHT" >Copyright © 2009-2021 William Astle and LWTools contributors</P ><HR></DIV ><DIV CLASS="TOC" ><DL ><DT ><B >Table of Contents</B ></DT ><DT >1. <A HREF="c13.html" >Introduction</A ></DT ><DD ><DL ><DT >1.1. <A HREF="c13.html#AEN16" >History</A ></DT ></DL ></DD ><DT >2. <A HREF="c21.html" >Output Formats</A ></DT ><DD ><DL ><DT >2.1. <A HREF="c21.html#AEN24" >Raw Binaries</A ></DT ><DT >2.2. <A HREF="x27.html" >DECB Binaries</A ></DT ><DT >2.3. <A HREF="x32.html" >ASCII Hexadecimal</A ></DT ><DT >2.4. <A HREF="x36.html" >Motorola S-Record</A ></DT ><DT >2.5. <A HREF="x41.html" >Intel Hex</A ></DT ><DT >2.6. <A HREF="x46.html" >OS9 Modules</A ></DT ><DT >2.7. <A HREF="x54.html" >Object Files</A ></DT ></DL ></DD ><DT >3. <A HREF="c62.html" >LWASM</A ></DT ><DD ><DL ><DT >3.1. <A HREF="c62.html#AEN65" >Command Line Options</A ></DT ><DT >3.2. <A HREF="x229.html" >Dialects</A ></DT ><DT >3.3. <A HREF="x238.html" >Source Format</A ></DT ><DT >3.4. <A HREF="x248.html" >Symbols</A ></DT ><DT >3.5. <A HREF="x253.html" >Numbers and Expressions</A ></DT ><DT >3.6. <A HREF="x261.html" >Assembler Directives</A ></DT ><DD ><DL ><DT >3.6.1. <A HREF="x261.html#AEN264" >Data Directives</A ></DT ><DT >3.6.2. <A HREF="x261.html#AEN381" >Address Definition</A ></DT ><DT >3.6.3. <A HREF="x261.html#AEN432" >Conditional Assembly</A ></DT ><DT >3.6.4. <A HREF="x261.html#AEN503" >OS9 Target Directives</A ></DT ><DT >3.6.5. <A HREF="x261.html#AEN528" >Miscelaneous Directives</A ></DT ></DL ></DD ><DT >3.7. <A HREF="x568.html" >Macros</A ></DT ><DT >3.8. <A HREF="x591.html" >Structures</A ></DT ><DT >3.9. <A HREF="x612.html" >Object Files and Sections</A ></DT ><DT >3.10. <A HREF="x676.html" >Assembler Modes and Pragmas</A ></DT ><DT >3.11. <A HREF="x827.html" >Convenience Instructions</A ></DT ><DT >3.12. <A HREF="x832.html" >Cycle Counts</A ></DT ></DL ></DD ><DT >4. <A HREF="c838.html" >LWLINK</A ></DT ><DD ><DL ><DT >4.1. <A HREF="c838.html#AEN841" >Command Line Options</A ></DT ><DT >4.2. <A HREF="x938.html" >Linker Operation</A ></DT ><DT >4.3. <A HREF="x952.html" >Linking Scripts</A ></DT ><DT >4.4. <A HREF="x1019.html" >Format Specific Linking Notes</A ></DT ><DD ><DL ><DT >4.4.1. <A HREF="x1019.html#AEN1022" >OS9 Modules</A ></DT ></DL ></DD ></DL ></DD ><DT >5. <A HREF="c1034.html" >Libraries and LWAR</A ></DT ><DD ><DL ><DT >5.1. <A HREF="c1034.html#AEN1038" >Command Line Options</A ></DT ></DL ></DD ><DT >6. <A HREF="c1096.html" >Object Files</A ></DT ></DL ></DIV ><DIV CLASS="LOT" ><DL CLASS="LOT" ><DT ><B >List of Tables</B ></DT ><DT >6-1. <A HREF="c1096.html#AEN1121" >Object File Term Types</A ></DT ><DT >6-2. <A HREF="c1096.html#AEN1151" >Object File Operator Numbers</A ></DT ></DL ></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" > </TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" > </TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="c13.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" > </TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" > </TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Introduction</TD ></TR ></TABLE ></DIV ></BODY ></HTML >