I would like to have macro, which behaves differently when argument is
defined and when it is not. The manual says, that argument which is omitted
equals to an empty string, but I cannot find a way, how to test for string
lenght. Has someone already solved this? I tried the following way, but it
is not working, as there is no substitution for MENUITEM in the IFDEF
statement when macro is invoked. I tried several more complicated ways, but
no good results so far. Any suggestions? MPASM 2.15

STRING  MACRO   STR,MENUITEM
STR#V(STRNO):   DT STR,0
 IFDEF  MENUTITEM
MENUITEM:       EQU STRNO
 ENDIF
        ENDM

Josef

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Electronical devices for chemical laboratory, custom electonics design
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Snail Instruments                     Josef Hanzal
Vojanova 615                          phone/fax: +420-311-24433
266 01 Beroun                         e-mail: snail@iol.cz
Czech Republic                        URL: http://www.vitrum.cz/snail/
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