Re: Patching in a CBM disk drive connection in a C64 case.

From: Claudio Sánchez - Tokafondo <tokafondo_at_gmail.com>
Date: Thu, 31 Mar 2022 20:48:58 +0100
Message-ID: <5a1040d7-dc6c-8549-b2f4-1ae715376d75_at_gmail.com>
El 31/03/2022 a las 19:05, Jim Brain escribió:
> On 3/31/2022 12:35 PM, Claudio Sánchez - Tokafondo wrote:
>>
>>
>> I think I read somewhere that CBM KERNALs are accesed not directly but by using jump tables. Or at least that's the recommended way.
> 
> Yep, the KERNAL jump table.  Sadly, not all apps use it.
> 
> 
> 

How difficult would be to add new drive managing code to an existing ROM while keeping the old one untouched? Is there room available for this in the CBM computers KERNALs?
Received on 2022-03-31 22:00:07

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