[Coco] OS9 Level 1 ver 2

Chester A Patterson vchester at setec-cr.com
Fri Nov 2 10:22:30 EDT 2007

I thought it had to be a table, what with 01 this, 01 that, etc.
What gets my goat is neither Cobbler nor OS9Gen can or do put those
bytes in there, they are just loose bytes in between the OS9 CRC and the
OS9p2 header, that I had to put in there manually. I guess my question
is, was OS9 Level 1 ver 2 released as flawed as that?

-----Original Message-----
From: Robert Gault [mailto:robert.gault at worldnet.att.net] 
Sent: Thursday, November 01, 2007 8:18 PM
To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] OS9 Level 1 ver 2

Chester A Patterson wrote:

> OS9 Level 1 Ver 2
> I was loosing sleep. I could not make a bootable disk using OS9Gen or 
> Cobbler. I could only DECB backup the factory 35TSS disk. So...
> 1st made the equivalent of level 2 REL. The lev.1 version isn't a 87CD

> type module while lev.2 is.
> 2nd was making a handfull of bytes I found between modules OS9 and 
> OS9p2 This was quite a surprise.
> These bytes are 01 D2 01 77 01 7D 01 83 01 84 01 88 01 83 Merge a new
> boottrack. OS9Gen -t and all that. And BINGO! Boots every time.
> What those bytes do or why they are there is at the moment beyond me.

Those are vectors, which can be seen by looking at the Level1 source
code for NitrOS-9 on SourceForge.

        fdb   Clock
Vectors fdb   SWI3    SWI3
        fdb   SWI2    SWI2
        fdb   DUMMY   FIRQ
        fdb   SVCIRQ  IRQ
        fdb   SWI     SWI
        fdb   DUMMY   NMI

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