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Path: ...!feeds.phibee-telecom.net!news.mixmin.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Mikko <mikko.levanto@iki.fi> Newsgroups: comp.theory Subject: Re: Any honest person that knows the x86 language can see... predict correctly Date: Fri, 2 Aug 2024 12:28:39 +0300 Organization: - Lines: 47 Message-ID: <v8i8s7$2ooui$1@dont-email.me> References: <v887np$gl15$1@dont-email.me> <v8a2j5$u4t6$1@dont-email.me> <v8asse$12hr3$2@dont-email.me> <v8aukp$12grj$1@dont-email.me> <v8b00m$12ojm$1@dont-email.me> <v8bchs$15ai5$1@dont-email.me> <v8bh32$15une$1@dont-email.me> <d89f03c5a605f010ec3c83c50137b983dc85848e@i2pn2.org> <v8bl2j$16ibk$2@dont-email.me> <tiuiaj5jf0jqcfcfntko5hufisp8mb93bm@4ax.com> <v8bu91$18b7k$2@dont-email.me> <ddb7a467da20b6a6bd90aee9735a62ae68cac50e.camel@gmail.com> <v8f0ni$204k7$1@dont-email.me> <v8fehe$22ege$1@dont-email.me> <v8fssh$24rl1$5@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Fri, 02 Aug 2024 11:28:39 +0200 (CEST) Injection-Info: dont-email.me; posting-host="0af577114287205e85e5f67e1545bc25"; logging-data="2909138"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1999lcNQMH9+9nOfiSL2oJQ" User-Agent: Unison/2.2 Cancel-Lock: sha1:77OR4SFsz7QScLnn+vmKUg/7lwU= Bytes: 2643 On 2024-08-01 11:51:45 +0000, olcott said: > On 8/1/2024 2:46 AM, Fred. Zwarts wrote: >> Op 01.aug.2024 om 05:51 schreef olcott: >>> On 7/31/2024 10:08 PM, wij wrote: >>>> On Tue, 2024-07-30 at 18:50 -0500, olcott wrote: >>>>> >>>>> It is not supposed to be a general solution to the halting problem. >>>>> it only shows how the "impossible" input is correctly determined >>>>> to be non halting. >>>>> >>>> >>>> But how do you determine it is non-halting? >>>> >>>> As I know you are even unable to define what 'halt' mean !!! >>>> >>> I have done this thousands of times and after someone >>> has read these thousands of times they say that I never >>> said it once. >>> >>> void DDD() >>> { >>> HHH(DDD); >>> return; >>> } >>> >>> int main() >>> { >>> HHH(DDD); >>> } >>> >>> If DDD correctly emulated by HHH cannot possibly >>> reach its return instruction then it never halts. >>> >>> >> >> But a correct simulation is impossible. > > When HHH does what-ever-the-hell the x86 semantics specifies > then HHH is correct. When HHH does not do what-ever-the-hell the x86 semantics specifies the HHH is incorrect. -- Mikko