On Sun, Feb 13, 2000 at 09:05:30PM +0500, ghazanhaider wrote:
> (1)in embedded systems of course you just cant run an OS on a processor
> with no RAM. but WITH RAM and absolutely nothing else like an 8059 PIC
> could you run ELKS (preferably) or something else???
You could run ELKS with nothing but some memory (you would need some
ROM to store the kernel), but how could you tell whether it was working, and
what would it do?
Without some kind of IO it would not really do anything.
>
> (2)what is the exact list of the standard PC features ELKS absolutely
> requires... like can it live without the 8054 DMA chip? what about the
> bus chip etc etc.
It does not absolutly require anything. By default it expects things like
a timer and an interrupt controller. I suspect the schedular would need some
work before it could work without a timer interrupt.
>
> (3)what about no bios except the most primitive bios code to boot elks.
>
ELKS does not in fact need a BIOS at all. THe mkurlader.c program can
be used to build a ROM image that boots directly into the kernel.
I have written some documentation on how to do this which I will make
available soon. I left the file at home, so I will have to upload it first.
Al
