;in one place code
eqIrp EQU macroA,Data,0
eqIrp EQU macroA,Data2,2 ;last param its 2

;another place code
irpv v,eqIrp { v
if last param = 2
invoke MessageBox,0,'commited',0,0
end if
 } 
    

macro checkIf2 arg { if arg = 2
    invoke MessageBox, 0, 'commited', 0, 0
end if }

macro checkArg check, [args] { common local test1
    define test1
reverse match , test1 \{ check args
    \restore test1 \} }

;in one place code
eqIrp EQU macroA,Data,0
eqIrp EQU macroA,Data2,2 ;last param its 2

;another place code
irpv v,eqIrp { v
checkArg checkIf2, v }