Re: Commodore PLC TIB DD-001 / Drive 2001

Am 22. Mai 2018 22:55:28 schrieb Steve Gray <sjgray@rogers.com>:

> I think I'd rather disassemble a known working implementation than to 
>write one from scratch, although there are no guarantees that the code is 
>efficient.

No need for disassembly. There are asm sources available.

Also, as alternative,  you could try to compile fatfs with cc65.

André

> Steve
>
>       From: smf <smf@null.net>
>  To: cbm-hackers@musoftware.de
>  Sent: Tuesday, May 22, 2018 3:25 PM
>  Subject: Re: Commodore PLC TIB DD-001 / Drive 2001
>
> It's probably be hard coded to fat12, so you'll need to change that.
>
> FAT itself isn't that complex, so if you're going to spend a long time
> reverse engineering it then starting from scratch is probably better.
>
> On 22/05/2018 14:41, Steve Gray wrote:
>> I the strength of the PLC TIB drive is that the firmware implements 
>> read/write of the FAT file system, making disk interchange much easier. I 
>> think it would be cool to adapt this to a CF, or other flash card format. 
>> The firmware is 6 to 8K so it'll be a challenge, but I think it would be 
>> worth it to disassemble the firmware (on my todo list). After that it might 
>> be fairly easy to adapt.
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