From: Wolfgang Denk <wd@denx•muc.de>
To: linuxppc-dev@lists•linuxppc.org
Cc: "Michael R. Zucca" <mrz5149@acm•org>,
"Marcus Sundberg" <erammsu@kieraypc01•p.y.ki.era.ericsson.se>,
"Kolbjørn Barmen" <kolla@nvg•ntnu.no>
Subject: Re: MPC8xx: Bad emulation
Date: Mon, 14 Jun 1999 07:16:21 +0200 [thread overview]
Message-ID: <199906140516.HAA06439@denx.muc.de> (raw)
In-Reply-To: Your message of "Mon, 14 Jun 1999 05:31:37 +0200." <Pine.LNX.4.10.9906140527340.30963-100000@daneel.nvg.ntnu.no>
On Sun, 13 Jun 1999, Michael R. Zucca wrote:
>
> I'm surprised. I thought we were already doing this. This sort of thing
So thought I; but the existing solution is far from being complete.
> has been done forever on the 68k to emulate the 68881/2 FPU. It's slow but
> if you don't plan on doing much floating point, it's perfectly acceptable.
Agreed.
On Mon, 14 Jun 1999, Kolbjørn Barmen wrote:
>
> It was working sometimes on some old 1.2.x kernels and perhaps older, it hasnt
> been working since afaik, and hasnt been much of an issue until recently on
> old macs, as most of atari and amiga owners has gotten ourselves 68881/2 chips
> in the meantime.
It is perfectly understandable that there is no much interest for
this on the workstation class of Linux boxen. But especially with the
PPC port and Embedded Controllers like the Motorola MPC8xx or the IBM
401x2 I se a good chance for Linux entering the world of embedded
(and realtime) systems. This opens a whole new set of requirements.
Wolfgang Denk
--
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd@denx•de
It is impractical for the standard to attempt to constrain the
behavior of code that does not obey the constraints of the standard.
- Doug Gwyn
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prev parent reply other threads:[~1999-06-14 5:16 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-06-04 21:29 MPC8xx: `init' problems / Bad emulation -- was: wrong zimage_start Wolfgang Denk
1999-06-11 7:23 ` Marcus Sundberg
1999-06-11 9:11 ` MPC8xx: Bad emulation Wolfgang Denk
1999-06-14 2:41 ` Michael R. Zucca
1999-06-14 3:31 ` Kolbjørn Barmen
1999-06-14 5:16 ` Wolfgang Denk [this message]
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