From: wkt@tuhs.org (Warren Toomey)
Subject: [Unix-jun72] Why is V1 so slow?
Date: Mon, 5 May 2008 21:44:18 +1000 [thread overview]
Message-ID: <20080505114418.GA87292@minnie.tuhs.org> (raw)
In-Reply-To: <20080505113632.GA85746@minnie.tuhs.org>
On Mon, May 05, 2008 at 09:36:32PM +1000, Warren Toomey wrote:
> I think there are output delays in the kernel.
There certainly were. I've svn committed a patch to remove these lines
from u4.s, and that really speeds things up!
Warren
1:
cmp r1,$11 / char = ht
bne 1f
movb $15.,toutt+0 / set time out to 15 clock tics
1:
cmp r1,$15 / char = cr
bne 2f
movb $15.,toutt+0 / set time out to 15 clock ticks
next prev parent reply other threads:[~2008-05-05 11:44 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-05 4:52 [Unix-jun72] last1120 C compiler added to svn Warren Toomey
2008-05-05 9:10 ` Peter Jeremy
2008-05-05 11:36 ` [Unix-jun72] Why is V1 so slow? Warren Toomey
2008-05-05 11:44 ` Warren Toomey [this message]
2008-05-07 10:19 ` P.A.Osborne
2008-05-07 11:14 ` Warren Toomey
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