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Re: SNI RM200

To: linux-mips@fnet.fr
Subject: Re: SNI RM200
From: Systemkennung Linux <linux@mailhost.uni-koblenz.de>
Date: Mon, 13 Nov 1995 19:47:59 +0100 (MET)
In-reply-to: <199511131832.TAA21337@newton.soft-n-hard.de> from "Andreas Busse" at Nov 13, 95 07:32:01 pm
Hi,

>  > My good old Amiga has at max. 10 % of the CPU of your Magnum and can
>  > print more than 20000 chars/s using proportional fonts on his 1024x1024
>  > display.  So don't tell me there's nothing to speed up.  I read the
>  > code of the G364 support and *shiver* ...  Just take a look at the
>  > code for scrolling:
>  > 
> 
> I haven't said that there's no way to increase speed. I said
> that there is no way to get a TEXT MODE!

Sorry.  Seems I interpreted that to far.

Anyway - I just played around with the code and did a bit cycle counting.
The shown C code needs 6 machine insns for 4 bytes copied per iteration.
Optimizing and unrolling the loop eight times gives 22 insns and 32 bytes
per iteration.

   Ralf

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