Mercurial > hg-old > index.cgi

comparison doc/manual/x135.html @ 285:9010796c6253 2.3 2.3.1

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Generated manual for distribution
author lost
date Fri, 24 Apr 2009 22:36:09 +0000
parents
children
comparison
equal deleted inserted replaced
284:a175fa4a0a9a 285:9010796c6253
1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
2 <HTML
3 ><HEAD
4 ><TITLE
5 >Symbols</TITLE
6 ><META
7 NAME="GENERATOR"
8 CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
9 REL="HOME"
10 TITLE="LW Tool Chain"
11 HREF="index.html"><LINK
12 REL="UP"
13 TITLE="LWASM"
14 HREF="c35.html"><LINK
15 REL="PREVIOUS"
16 TITLE="Source Format"
17 HREF="x126.html"><LINK
18 REL="NEXT"
19 TITLE="Numbers and Expressions"
20 HREF="x139.html"></HEAD
21 ><BODY
22 CLASS="SECTION"
23 BGCOLOR="#FFFFFF"
24 TEXT="#000000"
25 LINK="#0000FF"
26 VLINK="#840084"
27 ALINK="#0000FF"
28 ><DIV
29 CLASS="NAVHEADER"
30 ><TABLE
31 SUMMARY="Header navigation table"
32 WIDTH="100%"
33 BORDER="0"
34 CELLPADDING="0"
35 CELLSPACING="0"
36 ><TR
37 ><TH
38 COLSPAN="3"
39 ALIGN="center"
40 >LW Tool Chain</TH
41 ></TR
42 ><TR
43 ><TD
44 WIDTH="10%"
45 ALIGN="left"
46 VALIGN="bottom"
47 ><A
48 HREF="x126.html"
49 ACCESSKEY="P"
50 >Prev</A
51 ></TD
52 ><TD
53 WIDTH="80%"
54 ALIGN="center"
55 VALIGN="bottom"
56 >Chapter 3. LWASM</TD
57 ><TD
58 WIDTH="10%"
59 ALIGN="right"
60 VALIGN="bottom"
61 ><A
62 HREF="x139.html"
63 ACCESSKEY="N"
64 >Next</A
65 ></TD
66 ></TR
67 ></TABLE
68 ><HR
69 ALIGN="LEFT"
70 WIDTH="100%"></DIV
71 ><DIV
72 CLASS="SECTION"
73 ><H1
74 CLASS="SECTION"
75 ><A
76 NAME="AEN135"
77 >3.4. Symbols</A
78 ></H1
79 ><P
80 >Symbols have no length restriction. They may contain letters, numbers, dots,
81 dollar signs, and underscores. They must start with a letter, dot, or
82 underscore.</P
83 ><P
84 >LWASM also supports the concept of a local symbol. A local symbol is one
85 which contains either a "?" or a "@", which can appear anywhere in the symbol.
86 The scope of a local symbol is determined by a number of factors. First,
87 each included file gets its own local symbol scope. A blank line will also
88 be considered a local scope barrier. Macros each have their own local symbol
89 scope as well (which has a side effect that you cannot use a local symbol
90 as an argument to a macro). There are other factors as well. In general,
91 a local symbol is restricted to the block of code it is defined within.</P
92 ></DIV
93 ><DIV
94 CLASS="NAVFOOTER"
95 ><HR
96 ALIGN="LEFT"
97 WIDTH="100%"><TABLE
98 SUMMARY="Footer navigation table"
99 WIDTH="100%"
100 BORDER="0"
101 CELLPADDING="0"
102 CELLSPACING="0"
103 ><TR
104 ><TD
105 WIDTH="33%"
106 ALIGN="left"
107 VALIGN="top"
108 ><A
109 HREF="x126.html"
110 ACCESSKEY="P"
111 >Prev</A
112 ></TD
113 ><TD
114 WIDTH="34%"
115 ALIGN="center"
116 VALIGN="top"
117 ><A
118 HREF="index.html"
119 ACCESSKEY="H"
120 >Home</A
121 ></TD
122 ><TD
123 WIDTH="33%"
124 ALIGN="right"
125 VALIGN="top"
126 ><A
127 HREF="x139.html"
128 ACCESSKEY="N"
129 >Next</A
130 ></TD
131 ></TR
132 ><TR
133 ><TD
134 WIDTH="33%"
135 ALIGN="left"
136 VALIGN="top"
137 >Source Format</TD
138 ><TD
139 WIDTH="34%"
140 ALIGN="center"
141 VALIGN="top"
142 ><A
143 HREF="c35.html"
144 ACCESSKEY="U"
145 >Up</A
146 ></TD
147 ><TD
148 WIDTH="33%"
149 ALIGN="right"
150 VALIGN="top"
151 >Numbers and Expressions</TD
152 ></TR
153 ></TABLE
154 ></DIV
155 ></BODY
156 ></HTML
157 >