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Fix bug with section padding and downward allocation. When placing sections with the "high" method, padding was added to the section instance at the lowest address insted of the highest as is appropriate for the padafter option. Explicitly handle the padding for the first instance encountered (highest address) when growing down.
author William Astle <lost@l-w.ca>
date Fri, 21 Mar 2014 23:49:23 -0600
parents b30091890d62
children
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
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>Symbols</TITLE
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>Chapter 3. LWASM</TD
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><H1
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>3.4. Symbols</A
></H1
><P
>Symbols have no length restriction. They may contain letters, numbers, dots,
dollar signs, and underscores. They must start with a letter, dot, or
underscore.</P
><P
>LWASM also supports the concept of a local symbol. A local symbol is one
which contains either a "?" or a "@", which can appear anywhere in the symbol.
The scope of a local symbol is determined by a number of factors. First,
each included file gets its own local symbol scope. A blank line will also
be considered a local scope barrier. Macros each have their own local symbol
scope as well (which has a side effect that you cannot use a local symbol
as an argument to a macro). There are other factors as well. In general,
a local symbol is restricted to the block of code it is defined within.</P
><P
>By default, unless assembling to the os9 target, a "$" in the symbol will
also make it local.  This can be controlled by the "dollarlocal" and
"nodollarlocal" pragmas.  In the absence of a pragma to the contrary, for
the os9 target, a "$" in the symbol will not make it considered local while
for all other targets it will.</P
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