[Coco] HDBDOS ROM

Bruce W. Calkins brucewcalkins at charter.net
Fri Apr 7 21:15:58 EDT 2023


>>      Simplest thing is to use HDBDOS (and SDC-DOS) AUTOEXEC.BAS feature.
>> A file named "AUTOEXEC.BAS" will automatically be run on power up.
>> A simple:
>> 10 DOS
>> program will suffice.
>>
>>      See the respective manuals for locations and details..
>>
>>      Works for me.
> 
> 
> Yeah, I knew about that. But I thought it would be cool to have a system 
> that
> 
> didn't rely on BASIC  at all.
> 
> 
> bill
> 
FWIW: The CoCo's CPU boots to whatever ROM is at the hard coded startup 
address.  To bypass BASIC requires a custom ROM.  Decades back there 
were kits to put OS-9 on ROM, but they left the market a LONG time ago.

Bruce W.


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