Forgive me if this sounds stupid, but I am trying to pass the address of a variable which is declared using the locals macro. The cut down section of the code is:
proc init,.seg,.dat,.keybytes
locals
.ldat rd 2
endl
begin
mov bx,ss
movzx eax,bx ; move stack segment into eax for push
stdcall subroutine,eax,.ldat,1
return
endp

However, I get an 'invalid argument' error in the pushd instruction

What have I missed, or is it not possible to pass addresses of locals?

Also, is there a macro for pushing and retrieving entire segment:offset (16:32 format) pointers when passing them as arguments?

Thanks.

Matthew.

You missed that the address of local variable is not a constant, but relative to the register ebp i.e. ".ldat" == "ebp+const".
So, there is no push instruction that can push this address directly. Use "lea" instruction instead:


For example MASM allows directly pushing of local variables in the "invoke" macro, but it uses eax and mutually do the same "lea eax, ldat | push eax".
I think that using "lea" is more readable.

Regards.

Thanks for the reply. I got it now Duh, should have thought of that!