Path: csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: Bob Eager Newsgroups: alt.folklore.computers Subject: Re: Self-hosting and the 6502 Date: 1 Apr 2026 10:47:13 GMT Lines: 45 Message-ID: References: <10qdbas$2991c$1@dont-email.me> <10qhen2$eu5$2@reader2.panix.com> <10qistj$m45$1@reader2.panix.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Trace: individual.net kDukoR3YOfyIpriBYMiGFgdQ7nj+dpjB1fZIwpJ84ISPTBuvhY Cancel-Lock: sha1:iurWc/AFRPx/XHMSBCKpIWdCnKg= sha256:IR7Fn06uzyvfiqeIJtKtcIt+fV34M+cHigSQNlMNcgI= User-Agent: Pan/0.145 (Duplicitous mercenary valetism; d7e168a git.gnome.org/pan2) Xref: csiph.com alt.folklore.computers:234533 On Wed, 01 Apr 2026 10:44:03 +0000, Dan Cross wrote: > In article , > Bob Eager wrote: >>On Tue, 31 Mar 2026 21:35:30 +0000, Dan Cross wrote: >> >>> In article , >>> Bob Eager wrote: >>>>On Mon, 30 Mar 2026 07:40:42 -0700, Peter Flass wrote: >>>> >>>>> On 3/30/26 07:25, Dan Cross wrote: >>>>>>> the way the ridiculous does. >>>>>> >>>>>> Writing a proper multitasking OS usually requires some mechanism to >>>>>> protect the OS itself from errant user programs; this implies >>>>>> harwdare mechanisms that just don't exist on the 6502. >>>>>> >>>>>> >>>>> There's Minux, which could run on an 8086, if you want to consider >>>>> that a "proper" multitasking OS. Then there are things for the PDP-8 >>>>> and -11, >>>>> like TSS8. >>>> >>>>ITYM Minix. >>>> >>>>But you omit Mini-UNIX, a completely different beast that ran on a non >>>>memory-managed 11/20. >>> >>> As I understand it, Mini-Unix was a bit of a _tour de force_. I am >>> not sure I would have wanted to use it, but if all you've got is an >>> LSI-11.... >> >>Or an emulator... >> >> https://unixhistory.tavi.co.uk/mini-unix.html > > I see what you did there (pun intended?) I did install it an an 11/20 once, just for fun. -- Using UNIX since v6 (1975)... Use the BIG mirror service in the UK: http://www.mirrorservice.org