> the code is there, but the doco isnt.
> 
> ok?

Yes, although using "quadword" instead of "long long word" might help
people remember the "q" modifier.

> Index: ddb.4
> ===================================================================
> RCS file: /cvs/src/share/man/man4/ddb.4,v
> diff -u -p -r1.110 ddb.4
> --- ddb.4	21 Dec 2024 03:10:46 -0000	1.110
> +++ ddb.4	15 Jul 2025 00:33:16 -0000
> @@ -322,7 +322,7 @@ as part of building a new kernel.
>  .Tg write
>  .It Xo
>  .Ic w Ns Op Ic rite
> -.Op Cm /bhl
> +.Op Cm /bhlq
>  .Op Ar addr
>  .Ar expr Op Ar expr ...
>  .Xc
> @@ -339,6 +339,8 @@ byte (8 bits)
>  half word (16 bits)
>  .It Cm /l
>  long word (32 bits) (default)
> +.It Cm /q
> +long long word (64 bits) (only available on 64-bit platforms)
>  .El
>  .Pp
>  The value of
>