From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: Shrinking the C core Date: Sun, 20 Aug 2023 22:02:44 +0300 Message-ID: <838ra5wn8r.fsf@gnu.org> References: <20230809094655.793FC18A4654@snark.thyrsus.com> <87jztzkgct.fsf@dataswamp.org> <87y1if8j8t.fsf@linux-m68k.org> <87y1ifi9fv.fsf@dataswamp.org> <87zg2uqdmv.fsf@localhost> <87edk3gbh3.fsf@dataswamp.org> <87jztvnuyb.fsf@localhost> <875y5bdutt.fsf@dataswamp.org> <87y1i6e1uh.fsf@localhost> <874jkub40o.fsf@dataswamp.org> <87jztqdw2l.fsf@localhost> <87msym9i4r.fsf@dataswamp.org> <877cpp914t.fsf@localhost> <871qfx8yfq.fsf@localhost> <87sf8d7hj0.fsf@localhost> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="9989"; mail-complaints-to="usenet@ciao.gmane.io" Cc: yantar92@posteo.net, incal@dataswamp.org, emacs-devel@gnu.org To: "Alfred M. Szmidt" Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sun Aug 20 21:03:21 2023 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qXnhp-0002MI-BO for ged-emacs-devel@m.gmane-mx.org; Sun, 20 Aug 2023 21:03:21 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qXnhH-0006pl-Ec; Sun, 20 Aug 2023 15:02:47 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qXnhF-0006pZ-K9 for emacs-devel@gnu.org; Sun, 20 Aug 2023 15:02:45 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qXnhE-0004XU-Bt; Sun, 20 Aug 2023 15:02:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=oL/epRd5a9ZXbttrwKsPSe14+b4pp2mcz7QmpADK8Ws=; b=coKLfdOkIPkf 3+d3rbxZwxAXllFFCHM/DzE/jRFZamH8tPaf4K645WkgLIMUFMOzwM/jFYZqfMHNQCFVj6EW2Payk 3ccn4jH5qcuVGbDEfGahpAp/T/Q3MNG7YYXKqG8ncNvq8jlmj5zuFh6xa+fBypq0s8SoGmx1eph0J 2CAQ/6sPU5faI/9OvaK6MWW0wRZDJrpnoNTsdYckRQMaxEeC8zIZ+5YKjpqnXFMpj6H3btb1jDFYv 4v4XETKM7LCwAjihoYYTmPOuQZpcwTOrKzsfleUjeC0oyMC9QFeXDGWztZPsuWP0k1LkGhNe7HR57 FoRaDK3tYtFjur/p6Lb/BA==; In-Reply-To: (ams@gnu.org) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:308984 Archived-At: > From: "Alfred M. Szmidt" > Cc: incal@dataswamp.org, emacs-devel@gnu.org > Date: Sun, 20 Aug 2023 14:54:43 -0400 > > > Does not look too bad in terms of the number of instructions. And I do > > not see any obvious indirection. > > > > The Emacs VM will incure a switch to C for each call, SBCL doesn't. > > You really cannot see the difference that makes? > > May you elaborate what you mean by "switch to C"? > Emacs VM is running in C already. > > How does the decoding of bytecode to C happen? It doesn't. bytecode.c is already written in C.