From: Po Lu <luangruo@yahoo.com>
To: "Gerd Möllmann" <gerd.moellmann@gmail.com>
Cc: emacs-devel@gnu.org
Subject: Re: [PATCH] Re: Bignum performance
Date: Wed, 16 Aug 2023 14:42:33 +0800 [thread overview]
Message-ID: <87zg2rjxnq.fsf@yahoo.com> (raw)
In-Reply-To: <2dec78a7-76e0-8789-4d20-7f0f6effe28a@gmail.com> ("Gerd Möllmann"'s message of "Wed, 16 Aug 2023 07:18:54 +0200")
Gerd Möllmann <gerd.moellmann@gmail.com> writes:
>> I don't know about SBCL, but as for Emacs, refer to the definition of
>> VALBITS in lisp.h (maybe also the right files among m/*.h and s/*.h, but
>> I have no idea where they've disappeared to.)
>
> The SBCL I have here, a Homebrew installation, uses the scheme where
>
> ....0 -> fixnum
> ....1 -> other objects (discriminated by additional tag bits)
>
> I had the same for Emacs in the branch gerd_int in the 2000s, if
> memory serves me.
In today's Emacs, 0 is Lisp_Symbol; this facilitates representing Qnil
as C NULL.
next prev parent reply other threads:[~2023-08-16 6:42 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-14 6:28 [PATCH] Re: Bignum performance (was: Shrinking the C core) Gerd Möllmann
2023-08-14 6:56 ` Gerd Möllmann
2023-08-14 7:04 ` Ihor Radchenko
2023-08-14 7:35 ` Gerd Möllmann
2023-08-14 8:09 ` Ihor Radchenko
2023-08-14 9:28 ` Gerd Möllmann
2023-08-14 9:42 ` Ihor Radchenko
2023-08-15 14:03 ` Emanuel Berg
2023-08-15 15:01 ` Ihor Radchenko
2023-08-15 22:21 ` Emanuel Berg
2023-08-15 22:33 ` Emanuel Berg
2023-08-16 4:36 ` tomas
2023-08-16 5:23 ` Emanuel Berg
2023-08-14 16:51 ` Emanuel Berg
2023-08-15 4:58 ` Gerd Möllmann
2023-08-15 14:20 ` Emanuel Berg
2023-08-15 6:26 ` [PATCH] Re: Bignum performance Po Lu
2023-08-15 14:33 ` Emanuel Berg
2023-08-15 17:07 ` tomas
2023-08-15 22:46 ` Emanuel Berg
2023-08-16 1:31 ` Po Lu
2023-08-16 1:37 ` Emanuel Berg
2023-08-16 3:17 ` Po Lu
2023-08-16 4:44 ` tomas
2023-08-16 5:18 ` Gerd Möllmann
2023-08-16 5:35 ` Emanuel Berg
2023-08-18 7:14 ` Simon Leinen
2023-08-19 13:10 ` Emanuel Berg
2023-08-20 5:07 ` Ihor Radchenko
2023-08-20 6:20 ` Emanuel Berg
2023-08-28 5:32 ` Emanuel Berg
2023-09-03 0:48 ` Emanuel Berg
2023-09-03 8:50 ` Ihor Radchenko
2023-09-03 9:05 ` Emanuel Berg
2023-09-03 10:30 ` Elisp native-comp vs. SBCL for inclist-type-hints benchmark (was: [PATCH] Re: Bignum performance) Ihor Radchenko
2023-09-04 1:03 ` Emanuel Berg
2023-09-03 1:57 ` [PATCH] Re: Bignum performance Emanuel Berg
2023-09-04 4:13 ` Emanuel Berg
2023-08-16 5:41 ` Gerd Möllmann
2023-08-16 6:42 ` Po Lu [this message]
2023-08-16 8:05 ` Gerd Möllmann
-- strict thread matches above, loose matches on Subject: below --
2023-08-09 9:46 Shrinking the C core Eric S. Raymond
2023-08-09 12:34 ` Po Lu
2023-08-09 15:51 ` Eric S. Raymond
2023-08-09 23:56 ` Po Lu
2023-08-10 1:19 ` Eric S. Raymond
2023-08-10 7:44 ` Eli Zaretskii
2023-08-10 21:54 ` Emanuel Berg
2023-08-11 10:27 ` Bignum performance (was: Shrinking the C core) Ihor Radchenko
2023-08-11 12:10 ` Emanuel Berg
2023-08-11 12:32 ` Ihor Radchenko
2023-08-11 12:38 ` Emanuel Berg
2023-08-11 14:07 ` [PATCH] " Ihor Radchenko
2023-08-11 18:06 ` Emanuel Berg
2023-08-11 19:41 ` Ihor Radchenko
2023-08-11 19:50 ` Emanuel Berg
2023-08-12 8:24 ` Ihor Radchenko
2023-08-12 16:03 ` Emanuel Berg
2023-08-13 9:09 ` Ihor Radchenko
2023-08-13 9:49 ` Emanuel Berg
2023-08-13 10:21 ` Ihor Radchenko
2023-08-14 2:20 ` Emanuel Berg
2023-08-14 2:42 ` [PATCH] Re: Bignum performance Po Lu
2023-08-14 4:16 ` Emanuel Berg
2023-08-14 7:15 ` Ihor Radchenko
2023-08-14 7:50 ` Po Lu
2023-08-14 9:28 ` Ihor Radchenko
2023-08-15 14:28 ` Emanuel Berg
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