Hallo Herr Mateusz Viste,

am Samstag, 19. Februar 2022 um 15:08 schrieben Sie:

> On 12/01/2022 18:22, tom ehlert wrote:
>>> You might want to try uHex. Requires some 20 KiB of RAM and handles
>>> files up to 2 GiB.
>> 
>> use int 21, 6C EXTENDED OPEN/CREATE and you can handle 4GiB.

> This does not appear to be present in the FreeDOS kernel. Or at least 
> the source code comment says "not implemented yet" (and the O_LARGEFILE
> flag does not appear to be used anywhere later in the code):

> https://github.com/FDOS/kernel/blob/master/kernel/dosfns.c#L498

OOPS.

I hadn't thougt about this as the FreeDOS kernel (AFAIK) doesn't
check for offsets beyond 2GB.



> Do you have a FreeDOS kernel version that supports this?
most likely no ;)

Tom



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