[Unix-jun72] Why is V1 so slow?

Warren Toomey wkt at tuhs.org
Mon May 5 21:44:18 AEST 2008

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!

       cmp     r1,$11 / char = ht
       bne     1f
       movb    $15.,toutt+0 / set time out to 15 clock tics
       cmp     r1,$15 / char = cr
       bne     2f
       movb    $15.,toutt+0 / set time out to 15 clock ticks

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