On Thursday, 7 April 2022 10:54:41 EDT Steffen Möller wrote: > On 07.04.22 16:26, andy pugh wrote: > > On Thu, 7 Apr 2022 at 15:07, Steffen Möller <steffen_moel...@gmx.de> wrote: > >> LinuxCNC built for 14 different platforms > >> > >> (https://buildd.debian.org/status/package.php?p=linuxcnc) and while > >> RISC V likely has everyone's attention, IBM's big iron s390x seems > >> less interesting for us. > > > > Is that really saying that we can run LinuxCNC on a Motorola 68k in a > > classic Mac? > > (What I am really asking about here is the realtime kernel dependency > > part) > I am a bit rusty here but a memory management unit is required which is > only available starting with the 68030? Or the 68020 with an extra > chip? Yip > https://www.macworld.com/article/220967/how-to-install-linux-on-a-vinta > ge-68k-mac.html > > The M68k has a name for realtime computing but I have no idea about how > much of that is made available for a regular Linux. > My guess is firm no Steffan. A lot has changed I'm sure, but the last time I tried to boot linux on a PP&S 68040 board in an A2000 amiga, with 64 megs of dram on the PP&S card, it treated the 68040 like a 68000, or ran on the mobo's 68000 and could not find but 500k of video memory. Didn't even find the 2 megs of dram on the commie scsi card. The 68000 then ran at 7 mhz.
Took it over a minute of swapping to show me an ls of /. That was quite some years back up the log, the pi3b has MUCH more real power than the plain M68k. I rebooted to amigdos3.1 as linux was not then usefull on m68k' Cheers, Gene Heskett. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
