[Coco] SDC Lba mode

Darren A mechacoco at gmail.com
Tue Nov 28 17:30:38 EST 2017


On Tue, Nov 28, 2017 at 2:46 PM, Steve Pedersen <
666jacktheknife666 at gmail.com> wrote:

> Hi folks ,
> I have been looking around on the internet for information on the SDC lba
> mode.
> My google fu skills must be weak cause I havent really found anything but
> mentions that there is an lba mode.
> My coco system is not up and running yet but this is what I am wanting to
> do.
> coco 1 with mpi 2 sdc's in slot 3 and 4 slot 3 sdc will be for floppy
> images and the slot 4 sdc will be for lba hard disk images <biggest I can
> make for OS9>
> I just cant seem to find any information on useing the sdc with hard disk
> or lba images.
> If anyone has done a tutorial or can point me in the right direction I
> would appreciate it.
>
>

You would need an OS9 driver and boot module to use LBA mode.  These have
already been written for NitrOS-9.

The sources are here:
SDC Driver (using rbSuper)
<https://sourceforge.net/p/nitros9/code/ci/default/tree/level1/modules/llcocosdc.asm>
SDC Boot Module
<https://sourceforge.net/p/nitros9/code/ci/default/tree/level1/modules/boot_sdc.asm>


While it is possible to use multiple SDC boards in an MPI, neither the
existing drivers nor SDC-DOS support this.

- Darren


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