William wrote:

>   `@1;
>   ` tst.l D0;
>   ` blt.s @3;
>   
>   `@2;
>   ` move.l (a0)+, (a1)+;
>   ` dbra d0,@2;
> 
> the problem is that FB gives "Assembler bad value."  What does this mean?!

I think the problem may lie in a different part of your assembly routine
that you haven't shown.  I pasted the above lines into FB exactly as
shown, then added another line that said only "@3;" (to satisfy the
reference to that label).  I did a "Build," and FB did not complain.

- Rick