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

From: groepaz_at_gmx.net
Date: Thu, 31 Mar 2022 22:01:43 +0200
Message-ID: <2131455.h6RI2rZIcs_at_rakete>
Am Donnerstag, 31. März 2022, 21:51:49 CEST schrieb Jim Brain:
> On 3/31/2022 2:48 PM, Claudio Sánchez - Tokafondo wrote:
> > 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?
> 
> Not much.  Most mods delete the tape routines to make room.

and often RS232 too

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Received on 2022-03-31 22:04:09

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