Subject: Re: CPU delay factor
To: Amitai Schlair <amitai.schlair@usa.net>
From: Michael R Zucca <mrz5149@cs.rit.edu>
List: port-mac68k
Date: 01/22/1998 00:53:43
> With 1.3 GENERIC, dmesg tells my CPU delay factor is 81. With a custom
> kernel, it's 96. What is this number, and what does it mean?

If I recall correctly it's the dbra delay factor. How long some
fixed number of decrement and branches take. Though I'm not sure
why it would be different from kernel to kernel. Hmmm.

> I just had a thought: once color video is well understood across the
> various 68K Macs, it'd be tremendously nifty to integrate color-capable
> virtual consoles (based on dt) into the kernel.

I had often thought of doing this but first I guess I'd better finish
the color video :-)

Dt is actually quite well suited to dealing with color. The structures
used to hold the characters were created to anticipate color support.
The best thing to do, I think, would be to use 4 bit color mode since
it would require pushing less bits around and terminals are usually
only built to handle 16 colors anyway.

There's nothing to stop somebody with a working color video card from
developing this program right now. (Hint Hint)