Mercurial > hg > index.cgi

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>DECB Binaries</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="Output Formats"
HREF="c21.html"><LINK
REL="NEXT"
TITLE="ASCII Hexadecimal"
HREF="x32.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="c21.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="x32.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="SECTION"
><H1
CLASS="SECTION"
><A
NAME="AEN27"
>2.2. DECB Binaries</A
></H1
><P
>A DECB binary is compatible with the LOADM command in Disk Extended
Color Basic on the CoCo. They are also compatible with CLOADM from Extended
Color Basic. These binaries include the load address of the binary as well
as encoding an execution address. These binaries may contain multiple loadable
sections, each of which has its own load address.</P
><P
>Each binary starts with a preamble. Each preamble is five bytes long. The
first byte is zero. The next two bytes specify the number of bytes to load
and the last two bytes specify the address to load the bytes at. Then, a
string of bytes follows. After this string of bytes, there may be another
preamble or a postamble. A postamble is also five bytes in length. The first
byte of the postamble is $FF, the next two are zero, and the last two are
the execution address for the binary.</P
><P
>Both LWASM and LWLINK can output this format.</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="c21.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="x32.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>Output Formats</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="c21.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>ASCII Hexadecimal</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>
author	William Astle <lost@l-w.ca>
date	Wed, 17 Aug 2022 17:05:01 -0600
parents	b30091890d62
children