yes it is easy:
the macros can even take parameters.

for e.g. the following macro simulates
an 8051 instruction (compare and jump if not equal)
the macro begins with a "macro" declaration and ends with
a "endm" statement. if the "reg" value is not equal
to the constant the program branches to "label".


cjne macro reg,constant,label
        movlw   constant
        subwf   reg,w
        btfss   status,zero
        goto    label

        endm



>
> Is it possible in MPASM to create a #define-macro which translates to
> - multiple lines of 'code', among which
> - a start-of-macro-definition (the "label MACRO parameter,..." type of
> macro) line
>
> I want to create
>    #procedure(procname)
> and
>    #endproc
> macros which (among other things) store the intervening lines as a macro
> definition.
>
> regards,
> Wouter.
>