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Hmm. 'xmlto' does not allow underscore in filenames
author roug
date Tue, 31 Dec 2002 12:35:35 +0000
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children 2038f48c78e4
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695:693acf8645b1 696:b0501e9fb255
1 <?xml version="1.0" ?>
2 <!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
3 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
4 <!--
5 The author has not been contacted about adding this article to the
6 documentation set.
7 -->
8 <article>
9 <articleinfo>
10 <title>The OS-9 Boot Process</title>
11 <subtitle>COCO Computer</subtitle>
12 <author><firstname>Alan</firstname><surname>DeKok</surname>
13 <affiliation>
14 <address>
15 <email>aland@striker.ottawa.on.ca</email>
16 </address>
17 </affiliation>
18 </author>
19 <revhistory>
20 <revision>
21 <revnumber>1</revnumber>
22 <date>Tue Apr 29 21:53:46 EDT 1997</date>
23 <revremark>Last update</revremark>
24 </revision>
25 </revhistory>
26 </articleinfo>
27 <orderedlist>
28 <listitem><para>Typing 'DOS' at the DECB 'OK' prompt loads in track 34 off of the disk.</para></listitem>
29
30 <listitem><para> Track 34 gets loaded into address $2600, and execution of code
31 starts at $2602.</para></listitem>
32
33 <listitem><para> $2602 contains a BRA to the execution point of the REL module.</para></listitem>
34
35 <listitem><para> REL copies the boot track ($2600 to $3800) to address $ED00, and jumps to
36 another routine inside of REL, at the new address.</para></listitem>
37
38 <listitem><para> REL then jumps to OS9p1, which sets up system variables, the system
39 memory map, system call tables, IRQ &amp; SWI setup, and calls BOOT.</para></listitem>
40
41 <listitem><para> BOOT reads sector $000000 off of a disk, and finds out where the
42 OS9Boot file is.</para></listitem>
43
44 <listitem><para> BOOT requests system memory for the size of OS9Boot, seeks to where
45 OS9Boot is, and loads it directly into RAM.</para></listitem>
46
47 <listitem><para> It then returns to OS9p1, after setting up pointers in low memory to
48 the OS9Boot file.</para></listitem>
49
50 <listitem><para> OS9p1 links to OS9p2, and executes it.</para></listitem>
51
52 <listitem><para> OS9p2 sets up more system calls, links to the clock module, and
53 calls it.</para></listitem>
54
55 <listitem><para> Clock sets up some more system calls, starts multitasking, and
56 returns to OS9p2.</para></listitem>
57
58 <listitem><para> OS9p2 then does F$Chain of 'CC3Go'. This prints a start up banner,
59 and runs your 'startup' file through a shell.</para></listitem>
60 </orderedlist>
61 </article>