David,

You are talking about the Version 5 codes actually, more precisely those
added during Version 6 development. (Version 6 uses DW_LNAME, not DW_LANG
prefixes.) Yes, I see 0x0029 is unused. I see no reason not to fill
in that hole.

Since Cary is the keeper of that list for V5 (and V6) I suppose it is his
call.

Ron



On Sat, Oct 25, 2025 at 5:29 PM David Anderson via Dwarf-discuss <
[email protected]> wrote:

> The DW_LANG DWARF6 table lists no language for 0x0029.
>
> The listed DW_NAME around 0x0029 are
> #define DW_LANG_Crystal                 0x0028 /* DWARF6 */
>
> #define DW_LANG_C_plus_plus_17          0x002a /* DWARF6 */
>
> The original proposal on 0x0029 was for DW_LANG_Nasm March 2021,
> but on email discussion it was agreed the name DW_LANG_Assembly
> was more appropriate and DW_LANG_Assembly was added as  0x0031.
>
> Issues 210115.1 requested Nasm.
> 210208.1 requested DW_LANG_C_plus_plus_17 and was assigned 0x002a.
>
> I was just idly wondering if, for the next requested LANG id,
> we could assign 0x0029 ...
>
> David Anderson
>
>
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