[Oberon] Re (2): NO qemu

eas lab lab.eas at gmail.com
Thu Oct 30 17:55:18 CET 2014

Unless you're familiar with the CPU's actions, from the time that it
resets to the
<start vector> adr, those details are all hidden - like how the grass molecules
make the cow's-milk.
PO-2013 tries to get closer to the hardware, but knowledge of NAND-gates,
bistables & shift-registers is lost, like dipping-your-school-pen-into-ink-pot.

Does QEMU emulate right down to the level that you're assuming.
I used NativeOberon since the 90's and never bothered to find how to boot
other than via a floppy., because I was too busy *USING* it.

== Chris Glur.

On 10/29/14, peter at easthope.ca <peter at easthope.ca> wrote:
> From: peter at easthope.ca (peter at easthope.ca)
> Date: Tue, 28 Oct 2014 10:32:52 -0700
>> Instructions for installing NO using qemu
>> and then booting it natively are now in the wiki.
>> http://www.ocp.inf.ethz.ch/wiki/Documentation/Installation#toc23
> The procedure doesn't work properly yet and I've noted that.
> For testing, a qemu installed system is in /dev/sda5 and a diskette
> installed system is in /dev/sda6.  sda6 boots as it should and sda5
> comes to OBE and stops.  According to
> http://www.ethoberon.ethz.ch/newfaq.html#hangOBE
> "... the second block of the OBL boot loader did not load correctly. "
> "dhex /dev/sda5 /dev/sda6" shows that the first 40 bytes
> from sda{5,6} match.  Then, there are few matches until
> offset 800.  From 800 onward, the two devices match again,
> except for three specific differences.
> Why do Oberon0 under QEMU and Oberon0 from a diskette
> install two different boot loaders?  Have I overlooked an
> option for QEMU?
> Thanks for any ideas,             ... Peter E.
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