[Coco] reading second side of real floppy disk on VCC

[RETRO Innovations]

On 5/5/2024 4:14 PM, robert.gault--- via Coco wrote:
> I assumed you would be familiar with VCC.
Well, I am somewhat, but I've never tried to read from a physical disk. 
That said, he asked a number of folks at the show, and no one else was 
able to help, so it seems I'm not the only one.
> VCC requires a disk rom to be present in the folder being used.
Yeah, I saw the ROM image.  We were/are using the default.
> That .rom needs to be configured for two sided .dsk images. You can only read .dsk images not actual floppies without a lot more work. There is a table in the disk rom at $D7AA-$D7AD that defines the type of disks being used. The default values are 1 , 2 , 4 , and $40 which are for single sided disks. These values need to be changed for double sided disks to 1, 2, $41, and $42. So you must either change your disk.rom image or tell VCC in the menu you are using your own .rom image which has the above values.
Any chance there's a pre-modded ROM around?
> One more issue is having a .dsk formatted correctly for double sided use.

My understanding is that he uses this disk in his real coco, and was 
trying to use the same physical disk with his VCC install.  I can't 
check it now, since I'm no longer there.  I'll let him know the below.

Jim

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