Path: csiph.com!weretis.net!feeder8.news.weretis.net!news.samoylyk.net!gothmog.csi.it!bofh.it!news.nic.it!robomod From: Felix Lechner Newsgroups: linux.debian.ports.powerpc,linux.debian.project Subject: Re: Delay slot in PowerISA? Date: Sun, 29 Mar 2026 23:10:01 +0200 Message-ID: References: X-Original-To: debian-powerpc@lists.debian.org X-Mailbox-Line: From debian-powerpc-request@lists.debian.org Sun Mar 29 21:07:10 2026 Old-Return-Path: X-Amavis-Spam-Status: No, score=-7.2 tagged_above=-10000 required=5.3 tests=[BAYES_00=-2, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, LDO_WHITELIST=-5] autolearn=ham autolearn_force=no X-Policyd-Weight: using cached result; rate:hard: -1.25 X-Greylist: delayed 399 seconds by postgrey-1.36 at bendel; Sun, 29 Mar 2026 20:46:10 UTC User-Agent: mu4e 1.12.15; emacs 30.2 MIME-Version: 1.0 Content-Type: text/plain X-Mailing-List: archive/latest/73245 List-ID: List-URL: List-Archive: https://lists.debian.org/msgid-search/87fr5iqsjm.fsf@lease-up.com Approved: robomod@news.nic.it Lines: 39 Organization: linux.* mail to news gateway Sender: robomod@news.nic.it X-Original-Cc: debian-project@lists.debian.org X-Original-Date: Sun, 29 Mar 2026 13:39:25 -0700 X-Original-Message-ID: <87fr5iqsjm.fsf@lease-up.com> X-Original-References: <87fr89yvdb.fsf@lease-up.com> <20260114073012.46tz66qk756t6wzb@shell.thinkmo.de> Xref: csiph.com linux.debian.ports.powerpc:11108 linux.debian.project:14265 Hi Bastian On Wed, Jan 14 2026, Bastian Blank wrote: > No, PowerPC does not have any branch delay slots. It doesn't, but a function call on PowerPC requires a nop instruction after the branch instruction, which looks a lot like a delay slot. [1] The extra space is needed to manage the "TOC" that's particular to the PowerPC architecture. > Why the [@#$%] do you consider it a good use of our time to chase > ghosts? I am sorry you were offended. It was not a ghost to me. I could not think of a better place to ask than on -powerpc when porting my software. By the way, I did not notice until now that you copied debian-project on your response (or that your response triggered the broader AI discussion in the project in which I then participated). My initial email to -powerpc unequivocally expressed skepticism about the AI-generated materials, but I simply read everything that I thought might help me to resolve an obscure linker error. I never submitted an AI-generated contribution. In fact, I have never used an AI chatbot. Thank you to Richard Lewis for interpreting my original message in a friendly way. Kind regards Felix P.S. I do not subscribe to either of the lists. [1] https://sourceware.org/bugzilla/show_bug.cgi?id=26164