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Conditional assembly may not be used to exclude normal text, because

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tokenization will still take place, even if the input is not assembled.


git-svn-id: svn://svn.cc65.org/cc65/trunk@2446 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cuz 2003-09-24 17:20:50 +00:00
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doc/ca65.sgml
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@ -273,6 +273,8 @@ Here is a description of all the command line options:
<sect>Input format<p>
<sect1>Assembler syntax<p>
The assembler accepts the standard 6502/65816 assembler syntax. One line may
contain a label (which is identified by a colon), and, in addition to the
label, an assembler mnemonic, a macro, or a control command (see section <ref
@ -308,6 +310,9 @@ The assembler accepts
<tt><ref id=".SUNPLUS" name=".SUNPLUS"></tt> command was given).
</itemize>
<sect1>65816 mode<p>
In 65816 mode several aliases are accepted in addition to the official
mnemonics:
@ -336,11 +341,23 @@ separated by a dot:
jsl 3.$1234 ; Call subroutine at $1234 in bank 3
</verb></tscreen>
<sect1>Number format<p>
For literal values, the assembler accepts the widely used number formats:
A preceeding '&dollar;' denotes a hex value, a preceeding '%' denotes a
binary value, and a bare number is interpeted as a decimal. There are
currently no octal values and no floats.
<p>
<sect1>Conditional assembly<p>
Please note that when using the conditional directives (<tt/.IF/ and friends),
the input must consist of valid assembler tokens, even in <tt/.IF/ branches
that are not assembled. The reason for this behaviour is that the assembler
must still be able to detect the ending tokens (like <tt/.ENDIF/), so
conversion of the input stream into tokens still takes place. As a consequence
conditional assembly directives may <bf/not/ be used to prevent normal text
(used as a comment or similar) from being assembled. <p>
<sect>Expressions<p>
@ -2315,7 +2332,7 @@ Here's a list of all control commands and a description, what they do:
<sect1><tt>.VERSION</tt><label id=".VERSION"><p>
Reading this pseudo variable will give the assembler version according to
Reading this pseudo variable will give the assembler version according to
the following formula:
VER_MAJOR*$100 + VER_MINOR*$10 + VER_PATCH