using macros to pick data types

Having trouble.

I tried using a match directive to automatically put size operands in front of [rcx] and after "add rcx," but I kept getting "incomplete macro"

Code:

 match a b , byte  1
{
        movzx r9, a [rcx]
        add rcx, b
}

At first the size of each action was a parameter to the macro,

Code:

match =1 , actionsize { movzx r9, byte [rcx]}
match =2 , actionsize {movzx r9, word [rcx]
etc..
add rcx, actionsize

then I tried the above code but instead of a parameter to the macro I made it a symbolic constant

Code:

actionsize equ 1

but nothing works.

Code:

use64 ; very important this line

macro DeterministicFiniteAutomatonState Name, StateType, InvalidAction, [next, action]
{
    common
      Name:
        cmp rcx, rdx         ; compare curenrt Address, RCX, and end Address, RDX, if they are the same, we have reached the end of the string
        je StateType         ; jump to StateType (ST should tell us whether this state is an Accepting state or not)
        movzx r9, byte [rcx] ; retrieve the value pointed at by current address, put it in R9
        add rcx, 1           ; increment the current address pointer by size bytes
    forward
        cmp r9, action      ; compare what's in R9 to the given action argument
        je next             ; if equal, jump to the next state, else pass through to the next comparison
    common
        jmp InvalidAction   ; if we get to this point, the current action is invalid, so Jump to InvalidAction
}