Zilog Z8F0130 - Manual (Page 352)

Using the Macro Assembler UM013037-1212
328
Zilog Developer Studio II – Z8 Encore!
User Manual
IFSAME
Checks to see if two string constants are the same. If the strings are the same, the result is
true; otherwise, the result is false. If the strings are not enclosed by quotes, the comma is
used as the separator.
Syntax
IFSAME <string_const> , <string_const>

<code_body>

[ ELSE

<code_body>]

ENDIF
IFMA
Used only within a macro, this directive checks to determine if a macro argument has been
defined. If the argument is defined, the result is true. Otherwise, the result is false. If
<arg_number> is 0, the result is TRUE if no arguments were provided; otherwise, the
result is FALSE.
Syntax
IFMA <arg_number>

<code_body>

[ ELSE

<code_body>]

ENDIF
Macros
Macros allow a sequence of assembly source lines to be represented by a single assembler
symbol. In addition, arguments can be supplied to the macro in order to specify or alter the
assembler source lines generated once the macro is expanded. The following sections
describe how to define and invoke macros:
•
Macro Definition – see page 329
•
Concatenation – see page 329
•
Macro Invocation – see page 330
•
Local Macro Labels – see page 330
•
Optional Macro Arguments – see page 331
•
Exiting a Macro – see page 331