Le lun., 02 nov. 2020 15:32:43 -0500 Eric Auer écrit
Hi Paul,
> That's because on a AHCI only computer (without PATA or SATA IDE),
> you cannot access the sectors with INT 13h.
Yes you can. For harddisk/SSD.
I am glad to report that I was wrong.
Indeed INT 13h continue to wor
Hi Paul,
> That's because on a AHCI only computer (without PATA or SATA IDE),
> you cannot access the sectors with INT 13h.
Yes you can. For harddisk/SSD. Unless you configure the
computer to disable BIOS completely and boot only UEFI
operating systems.
But in that case, you get plenty of othe
I should have describe a little bit more why I was suggesting it might be
necessary to include AHCI driver in DOS kernel.
That's because on a AHCI only computer (without PATA or SATA IDE), you cannot
access the sectors with INT 13h.
Well, I have tried in Qemu with '-M Q35' machine achitectur
Hi Paul,
> I now realize it is still an IDE driver, not an AHCI driver like I thought.
> Anyway, I wonder if the kernel itself would be needed to support AHCI mode
The DOS kernel has nothing to do at all with your drive controllers.
DOS either asks the BIOS to read or write sectors (for hardd
Sorry I was confused about gcdrom.sys.
(Re)reading http://www.bootablecd.de/fdhelp-internet/en/hhstndrd/base/gcdrom.htm
I now realize it is still an IDE driver, not an AHCI driver like I thought.
Anyway, I wonder if the kernel itself would be needed to support AHCI mode
without IDE emulation.
