Re: port-mac68k/52237: Trying to install NetBSD/mac68k on Basilisk II crashes it.

[Hauke Fath <hauke%Espresso.Rhein-Neckar.DE@localhost>]

The following reply was made to PR port-mac68k/52237; it has been noted by GNATS.

From: Hauke Fath <hauke%Espresso.Rhein-Neckar.DE@localhost>
To: Utkarsh Anand <uanand009%gmail.com@localhost>
Cc: gnats-bugs%NetBSD.org@localhost, port-mac68k-maintainer%NetBSD.org@localhost,
        gnats-admin%NetBSD.org@localhost, netbsd-bugs%NetBSD.org@localhost
Subject: Re: port-mac68k/52237: Trying to install NetBSD/mac68k on Basilisk
 II crashes it.
Date: Wed, 17 May 2017 21:51:47 +0200

 On Wed, 17 May 2017 18:09:48 +0530, Utkarsh Anand wrote:
 >> Basilisk II doesn't emulate an 68k MMU, so it cannot run NetBSD.
 >=20
 > Here's an excerpt from the output of BasiliskII --help:
 >=20
 >  --cpu NUMBER
 >     CPU type (0 =3D 68000, 1 =3D 68010 etc.) [default=3D0]
 >=20
 > Isn't that the 68k MMU?
 
 No. Basilisk II emulates the Macintosh 68k platform (some virtual=20
 hardware + ROM, as far as necessary for the Macintosh OS), and not the=20
 actual Macintosh hardware. See e.g.=20
 <https://sourceforge.net/p/basilisk/mailman/message/2164622/>.
 =20
 > Also, you can see the specs for Mac II si right here:
 > http://www.everymac.com/systems/apple/mac_ii/specs/mac_iisi.html
 > It has the 68030 processor.
 
 Supporting the cpu's command set does not (necessarily) mean mmu=20
 support.
 
 Again: Basilisk does not provide the raw hardware emulation necessary=20
 to run anything but the Macintosh System. Which is a restriction of=20
 Basilisk, not one (and much less a bug) of NetBSD.
 
 Cheerio,
 hauke
 
 --=20
 Hauke Fath                        <hauke%Espresso.Rhein-Neckar.DE@localhost>
 Ernst-Ludwig-Stra=DFe 15
 64625 Bensheim
 Germany