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Updated documentation for .ADDRSIZE and .FEATURE addrsize

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JT 2015-04-20 18:56:34 -04:00
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commit 499eab65f1
1 changed files with 36 additions and 5 deletions
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doc/ca65.sgml
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@ -1278,6 +1278,36 @@ writable.
Pseudo functions expect their arguments in parenthesis, and they have a result, Pseudo functions expect their arguments in parenthesis, and they have a result,
either a string or an expression. either a string or an expression.
<sect1><tt>.ADDRSIZE</tt><label id=".ADDRSIZE"><p>
The <tt/.ADDRSIZE/ function is used to return the interal address size
associated with a symbol. This can be helpful in macros when knowing address
size of symbol can allow for custom instructions.
Example:
<tscreen><verb>
.macro myLDA foo
.if .ADDRSIZE(foo) = 1
;do custom command based on zeropage addressing:
.byte .A5h, foo
.elseif .ADDRSIZE(foo) = 2
;do custom command based on absolute addressing:
.byte .ADh, foo
.elseif .ADDRSIZE(foo) = 0
; no address size define for this symbol:
.out .sprinft("Error, address size unknown for symbol %s", .string(foo))
.endif
.endmacro
</verb></tscreen>
This command is new and must be enabled with the <tt/.FEATURE addrsize/ command.
See: <tt><ref id=".FEATURE" name=".FEATURE"></tt>
<sect1><tt>.BANK</tt><label id=".BANK"><p> <sect1><tt>.BANK</tt><label id=".BANK"><p>
@ -2596,6 +2626,12 @@ Here's a list of all control commands and a description, what they do:
<descrip> <descrip>
<tag><tt>addrsize</tt><label id="addrsize"></tag>
Enables the .ADDRSIZE pseudo function. This function is experimental and not enabled by default.
See also: <tt><ref id=".ADDRSIZE" name=".ADDRSIZE"></tt>
<tag><tt>at_in_identifiers</tt><label id="at_in_identifiers"></tag> <tag><tt>at_in_identifiers</tt><label id="at_in_identifiers"></tag>
Accept the at character (`@') as a valid character in identifiers. The Accept the at character (`@') as a valid character in identifiers. The
@ -2648,11 +2684,6 @@ Here's a list of all control commands and a description, what they do:
overridden. When using this feature, you may also get into trouble if overridden. When using this feature, you may also get into trouble if
later versions of the assembler define new keywords starting with a dot. later versions of the assembler define new keywords starting with a dot.
<tag><tt>loose_char_term</tt><label id="loose_char_term"></tag>
Accept single quotes as well as double quotes as terminators for char
constants.
<tag><tt>loose_string_term</tt><label id="loose_string_term"></tag> <tag><tt>loose_string_term</tt><label id="loose_string_term"></tag>
Accept single quotes as well as double quotes as terminators for string Accept single quotes as well as double quotes as terminators for string