annotate docs/manual/x491.html @ 254:155799f6cfa5

Add documentation for the FILL pseudo operation
author William Astle <lost@l-w.ca>
date Wed, 30 Jan 2013 21:32:14 -0700
parents
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
254
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
2 <HTML
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
3 ><HEAD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
4 ><TITLE
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
5 >Macros</TITLE
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
6 ><META
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
7 NAME="GENERATOR"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
8 CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
9 REL="HOME"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
10 TITLE="LW Tool Chain"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
11 HREF="index.html"><LINK
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
12 REL="UP"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
13 TITLE="LWASM"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
14 HREF="c45.html"><LINK
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
15 REL="PREVIOUS"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
16 TITLE="Assembler Directives"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
17 HREF="x200.html"><LINK
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
18 REL="NEXT"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
19 TITLE="Structures"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
20 HREF="x514.html"></HEAD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
21 ><BODY
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
22 CLASS="SECTION"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
23 BGCOLOR="#FFFFFF"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
24 TEXT="#000000"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
25 LINK="#0000FF"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
26 VLINK="#840084"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
27 ALINK="#0000FF"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
28 ><DIV
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
29 CLASS="NAVHEADER"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
30 ><TABLE
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
31 SUMMARY="Header navigation table"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
32 WIDTH="100%"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
33 BORDER="0"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
34 CELLPADDING="0"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
35 CELLSPACING="0"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
36 ><TR
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
37 ><TH
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
38 COLSPAN="3"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
39 ALIGN="center"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
40 >LW Tool Chain</TH
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
41 ></TR
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
42 ><TR
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
43 ><TD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
44 WIDTH="10%"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
45 ALIGN="left"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
46 VALIGN="bottom"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
47 ><A
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
48 HREF="x200.html"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
49 ACCESSKEY="P"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
50 >Prev</A
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
51 ></TD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
52 ><TD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
53 WIDTH="80%"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
54 ALIGN="center"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
55 VALIGN="bottom"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
56 >Chapter 3. LWASM</TD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
57 ><TD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
58 WIDTH="10%"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
59 ALIGN="right"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
60 VALIGN="bottom"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
61 ><A
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
62 HREF="x514.html"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
63 ACCESSKEY="N"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
64 >Next</A
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
65 ></TD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
66 ></TR
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
67 ></TABLE
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
68 ><HR
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
69 ALIGN="LEFT"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
70 WIDTH="100%"></DIV
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
71 ><DIV
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
72 CLASS="SECTION"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
73 ><H1
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
74 CLASS="SECTION"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
75 ><A
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
76 NAME="AEN491"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
77 >3.7. Macros</A
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
78 ></H1
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
79 ><P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
80 >LWASM is a macro assembler. A macro is simply a name that stands in for a
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
81 series of instructions. Once a macro is defined, it is used like any other
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
82 assembler directive. Defining a macro can be considered equivalent to adding
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
83 additional assembler directives.</P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
84 ><P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
85 >Macros may accept parameters. These parameters are referenced within a
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
86 macro by the a backslash ("\") followed by a digit 1 through 9 for the first
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
87 through ninth parameters. They may also be referenced by enclosing the
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
88 decimal parameter number in braces ("{num}"). The special expansion "\*"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
89 translates to the exact parameter string, including all parameters, passed
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
90 to the macro. These parameter references are replaced with the verbatim text
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
91 of the parameter passed to the macro. A reference to a non-existent
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
92 parameter will be replaced by an empty string. Macro parameters are expanded
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
93 everywhere on each source line. That means the parameter to a macro could be
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
94 used as a symbol or it could even appear in a comment or could cause an
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
95 entire source line to be commented out when the macro is expanded. </P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
96 ><P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
97 >Parameters passed to a macro are separated by commas and the parameter list
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
98 is terminated by any whitespace. This means that neither a comma nor whitespace
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
99 may be included in a macro parameter.</P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
100 ><P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
101 >Macro expansion is done recursively. That is, within a macro, macros are
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
102 expanded. This can lead to infinite loops in macro expansion. If the assembler
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
103 hangs for a long time while assembling a file that uses macros, this may be
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
104 the reason.</P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
105 ><P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
106 >Each macro expansion receives its own local symbol context which is not
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
107 inherited by any macros called by it nor is it inherited from the context
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
108 the macro was instantiated in. That means it is possible to use local symbols
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
109 within macros without having them collide with symbols in other macros or
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
110 outside the macro itself. However, this also means that using a local symbol
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
111 as a parameter to a macro, while legal, will not do what it would seem to do
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
112 as it will result in looking up the local symbol in the macro's symbol context
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
113 rather than the enclosing context where it came from, likely yielding either
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
114 an undefined symbol error or bizarre assembly results.</P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
115 ><P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
116 >Note that there is no way to define a macro as local to a symbol context. All
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
117 macros are part of the global macro namespace. However, macros have a separate
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
118 namespace from symbols so it is possible to have a symbol with the same name
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
119 as a macro.</P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
120 ><P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
121 >Macros are defined only during the first pass. Macro expansion also
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
122 only occurs during the first pass. On the second pass, the macro
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
123 definition is simply ignored. Macros must be defined before they are used.</P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
124 ><P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
125 >The following directives are used when defining macros.</P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
126 ><P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
127 ></P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
128 ><DIV
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
129 CLASS="VARIABLELIST"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
130 ><DL
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
131 ><DT
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
132 ><CODE
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
133 CLASS="PARAMETER"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
134 >macroname</CODE
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
135 > MACRO [NOEXPAND]</DT
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
136 ><DD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
137 ><P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
138 >This directive is used to being the definition of a macro called
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
139 <CODE
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
140 CLASS="PARAMETER"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
141 >macroname</CODE
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
142 >. If <CODE
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
143 CLASS="PARAMETER"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
144 >macroname</CODE
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
145 > already
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
146 exists, it is considered an error. Attempting to define a macro within a
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
147 macro is undefined. It may work and it may not so the behaviour should not
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
148 be relied upon.</P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
149 ><P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
150 >If NOEXPAND is specified, the macro will not be expanded in a program
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
151 listing. Instead, all bytes emitted by all instructions within the macro
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
152 will appear to be emitted on the line where the macro is invoked, starting
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
153 at the address of the line of the invokation. If the macro uses ORG or other
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
154 directives that define symbols or change the assembly address, these things
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
155 will also be hidden (except in the symbol table) and the output bytes will
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
156 appear with incorrect address attribution. Thus, NOEXPAND should only be
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
157 used for macros that do not mess with the assembly address or otherwise
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
158 define symbols that should be visible.</P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
159 ></DD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
160 ><DT
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
161 >ENDM</DT
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
162 ><DD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
163 ><P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
164 >This directive indicates the end of the macro currently being defined. It
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
165 causes the assembler to resume interpreting source lines as normal.</P
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
166 ></DD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
167 ></DL
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
168 ></DIV
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
169 ></DIV
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
170 ><DIV
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
171 CLASS="NAVFOOTER"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
172 ><HR
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
173 ALIGN="LEFT"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
174 WIDTH="100%"><TABLE
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
175 SUMMARY="Footer navigation table"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
176 WIDTH="100%"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
177 BORDER="0"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
178 CELLPADDING="0"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
179 CELLSPACING="0"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
180 ><TR
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
181 ><TD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
182 WIDTH="33%"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
183 ALIGN="left"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
184 VALIGN="top"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
185 ><A
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
186 HREF="x200.html"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
187 ACCESSKEY="P"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
188 >Prev</A
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
189 ></TD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
190 ><TD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
191 WIDTH="34%"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
192 ALIGN="center"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
193 VALIGN="top"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
194 ><A
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
195 HREF="index.html"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
196 ACCESSKEY="H"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
197 >Home</A
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
198 ></TD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
199 ><TD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
200 WIDTH="33%"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
201 ALIGN="right"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
202 VALIGN="top"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
203 ><A
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
204 HREF="x514.html"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
205 ACCESSKEY="N"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
206 >Next</A
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
207 ></TD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
208 ></TR
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
209 ><TR
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
210 ><TD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
211 WIDTH="33%"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
212 ALIGN="left"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
213 VALIGN="top"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
214 >Assembler Directives</TD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
215 ><TD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
216 WIDTH="34%"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
217 ALIGN="center"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
218 VALIGN="top"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
219 ><A
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
220 HREF="c45.html"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
221 ACCESSKEY="U"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
222 >Up</A
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
223 ></TD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
224 ><TD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
225 WIDTH="33%"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
226 ALIGN="right"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
227 VALIGN="top"
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
228 >Structures</TD
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
229 ></TR
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
230 ></TABLE
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
231 ></DIV
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
232 ></BODY
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
233 ></HTML
155799f6cfa5 Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
diff changeset
234 >