From: erik quanstrom <quanstro@quanstro.net>
To: 9fans@9fans.net
Subject: Re: [9fans] what is differece(s) between sources and atom kernel?
Date: Thu, 3 Apr 2014 22:13:49 -0400 [thread overview]
Message-ID: <4e70d3ef3441e82d13acf2e7ca090733@ladd.quanstro.net> (raw)
In-Reply-To: <3448b9061bd0930eb5dc5ac2d1b669a7@jitaku.localdomain>
On Thu Apr 3 22:06:07 EDT 2014, kokamoto@hera.eonet.ne.jp wrote:
> I've been considered why pc kernel dosen't work for go compiling,
> however pcpae kernel does. The 'sources' pc kernel works fine
> (from David's talk here).
>
> In the 'sources' pc kernel, there is a definition of fpssesave etc
> in its l.s.
> On the other hand, no definition in atom's pc kernel.
> However, pcpae kernel have them in l.s (named ssesave etc).
> I think this is the cause of different behaviours between them.
> Am I right?
yes, the 9atom pc kernel doesn't support SSE. this is on purpose.
i thought support for multiple types of floating point in the same
kernel was not ideal. and since i think of the pc kernel as there
mostly to support quite old hardware without sse support, and
really new and tiny hardware (also likely with funny floating point),
i thought it would work to just support sse in the PAE kernel.
pae isn't newfangled. it was supported, iirc, by the ppro.
- erik
next prev parent reply other threads:[~2014-04-04 2:13 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-04 2:03 kokamoto
2014-04-04 2:13 ` erik quanstrom [this message]
2014-04-04 3:10 ` Kurt H Maier
2014-04-04 4:13 ` kokamoto
2014-04-04 4:23 ` erik quanstrom
2014-04-04 4:55 ` kokamoto
2014-04-04 5:05 ` lucio
2014-04-04 5:03 ` lucio
2014-04-04 4:49 ` lucio
2014-04-05 4:24 ` kokamoto
2014-04-05 4:40 ` kokamoto
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