[Coco] Vcc and real floppy disks

[Darren A]

Exactly.  There is no need to do anything special to support real
"flippies" in an emulator. As far as the emulator is concerned those
are just single-sided disks, and you still have to flip them manually.

Darren

------
On 9/26/08, Tim Fadden wrote:

> Not to be confused with a flippy! As the rotation is different!  With

> the rsdos controller I have, under rsdos 1 drive is drive0 on top, and

> drive2 on the bottom the second drive is drive1 on top, and drive 3 on

> the bottom.  Under OS9, the the drives work as normal double sided disks.

>

> Tim

>

> Darren A wrote:

>> I think the problem that Robert was referring to is when a modified

>> DECB is used to access the second side of a disk as though it were a

>> separate disk. In this case the ID fields on both sides are encoded as

>> side zero.

>>

>> For this scenario you need to use different values for the "phead" and

>> "head" fields of the FD_READ_WRITE_PARAMS structure when accessing the

>> second side of the disk (the "phead" field should be 1 and "head"

>> should be 0). With a true double sided disk under OS9 these two fields

>> should always be the same.

>>

>> Darren

>>

>> ------

>> On 9/26/08, Joe F <joef6809 at gmail.com> wrote:

>>

>>> Darren just saw your post,

>>> your right fdrawcmd lets you pick the side of the disk, right now I'm

>>> just

>>> forwarding the side select from the WD1773 chip so if you have an os like

>>> OS9 or a DECB that been modified to use the second side that should

>>> definitely work. I just never thought of over-riding that so standard

>>> BASIC

>>> would work like that.

>>>

>>

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>>

>

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