Re[2]: Is it possible to do this using GAS

["Robert-Margaret Hunt"<robert-margaret_hunt at sil dot org>]

Hi,

Thanks so much. I can't wait to start assembling my AVR programs. 
Thanks you all you GNUs.

But I have one more question. Is there a version of binutils for 
an 8051. I looked for one using google and I found emails 
archives mentioning an 8051 version of GAS but I couldn't find 
one anywhere.

Thanks,
Jonathan Hunt
<jhuntnz@users.sourceforge.net>

______________________________ Reply Separator _________________________________
Subject: Re: Is it possible to do this using GAS
Author:  <nickc@redhat.com> at Internet
Date:    3/23/2001 2:42 PM


Hi Robert-Margaret,

> .macro        test2 regpair
>
>     ldi        \regpairL, 0x0a
>     ldi        \regpairH, 0x0a
> .endm
>
> ; This doesn't work
>     test2        abc
> ; I can't find a way to combine a parameter
> ; without adding whitespace
> ; ie I want \regpairL to end up as
> ; abcL which would be equated to 16.

You need to use nested macros, like this:

  .macro test-sub regpair letter1 letter2
     ldi        \regpair\letter1, 0x0a
     ldi        \regpair\letter2, 0x0a
  .endm

  .macro test2 regpair
    test-sub \regpair L H
  .endm

  test2 abc


Cheers
        Nick