Does anyone know how to determine whithin a MPASM macro whether a parameter
has been specified?  For example:

eeset    MACRO  label, addr, default, min, max

    if (min)
      retlw  min
    else
      retlw  0x00
    endif
blah blah blah

In other words, if I invoked the macro as:  eeset HITEMP, 01, 0x55,,
I could tell within the macro that I had not specified certain parameters
and allow the macro to use standard defaults for those parameters.

I have tried:
    if (min)
    if min
    if !(min)
    if !min
    if !((min)==())
    if (min) != ()

all of these return errors.

I also tried:
    ifdef   (min)
    ifdef   min
but those always return false whether or not the parameter is present or not.

Any ideas?


Dwayne Reid   <dwayner@planet.eon.net>
Trinity Electronics Systems Ltd    Edmonton, Alberta, CANADA
(403) 489-3199 voice     (403) 487-6397 fax