[Coco] data modules

[Wayne Campbell]

That is the same info I found in the manuals, Robert. Thanks. I remember a
few years back seeing an example of a data module, but I can't remember
where for the life of me. I know that most modules use the optional header
extensions for things specific to that module, and I assume it is the same
for a data module. In my case, it would be for establishing the offsets of
specific locations within the module for different aspects of the program
to read from or write to, giving me a way to exchange data between
processes. I just wish I could remember where I saw that example of a data
module.

On Thu, Jun 8, 2017 at 7:56 PM, Robert Gault <robert.gault at att.net> wrote:

> Wayne Campbell wrote:
>
>> Somewhere in one of the manuals is a description of a OS-9 data module. I
>> can't find it, and I've looked through all of the level 1 and 2 manuals I
>> have. Can someone point me to where that information is? My future plans
>> for decode include the use of a data module, and I need the information to
>> help me design the internal layout of the module.
>>
>> Thanks,
>>
>>
> Wayne,
>
> Data modules are not in the index of OS-9 Level Two but if you look in the
> Technical Reference section on pg 3-4 you will see a list of the
> type/language byte.
>  Code          Type          Name
>   $4x         Data Module     Data
>
> The 6th byte of a memory module is TYPE/LANGUAGE and the language is
>  $x0      for a data module.
> So combining both of these the 6th byte should be $40.
>
> Page 3-6 give the structure of an "executable" module but apparently if
> you have byte-6 = $40 you can use the same structure for a data module.
>
> I can't find any examples of data modules.
>
> Robert
>
>
> --
> Coco mailing list
> Coco at maltedmedia.com
> https://pairlist5.pair.net/mailman/listinfo/coco
>



-- 
Wayne

The Structure of I-Code
http://www.cocopedia.com/wiki/index.php/The_Structure_of_I-Code

decode
http://cococoding.com/wayne/