Emulating a IDE CD driver

[Solskogen]

Can WinUAE emulate a cd drive connected to the IDE bus? (not uaehf)
I've been trying to emulate a A1200 without UAE extensions, but getting the CD to work have gotten the best of me. The reason I want to do so is to be able to create a EmergencyDisk for AmigaOS 3.9 that I can use on a real Amiga or on a FPGA simulating a real amiga, but if the disk is created on WinUae it doesn't really work because the disk then expects the cd to be on uaehf.

[Aardvark]

CD & Hard Drives -> Add SCSI/IDE CD Drive -> HD Controller: A600/A1200/A4000 IDE

[Matt_H]

Yes, it should be possible using the same panel as adding hard drives. You should be able to select the A1200 IDE bus to "attach" the CD drive to.

Alternatively, all you need to do to make the Emergency Disk work on a real machine is to change the device/unit info in the CD0 mountfile to point to atapi.device (or whatever the driver name is on 3.9 - can't recall whether it's atapi or something else) instead of uaehf.device.

[thomas]

Originally Posted by Solskogen

but if the disk is created on WinUae it doesn't really work because the disk then expects the cd to be on uaehf.

Devs/DosDrivers/CD0 is a text file, you can edit it.

Getting a CD drive on the IDE bus to work is a hen-and-egg problem. You need the OS 3.9 IDE driver to see the CD drive, but you need the CD working to get OS 3.9.

IDEfix might help out here temporarily.

Or as mentioned above, make the emergency disk with uaescsi.device and edit "uae" out of the way.

[Solskogen]

Thanks for the tip, but as long as Board Type is set to "ROM disabled" no CD shows up. Despite adding the CD there. I've tried both IDE (Auto) and Commodore A600/A1200/A4000 IDE. And CD0 in Devs/DOSDrivers have UNIT=1

[Solskogen]

Originally Posted by thomas

Devs/DosDrivers/CD0 is a text file, you can edit it.

Getting a CD drive on the IDE bus to work is a hen-and-egg problem. You need the OS 3.9 IDE driver to see the CD drive, but you need the CD working to get OS 3.9.

Not really. I can create the emergency disks with 3.1. 3.1 should be able to see the CD.

[thomas]

Originally Posted by Solskogen

3.1 should be able to see the CD.

The 3.1 IDE driver does not see the CD drive. It is not able to handle ATAPI devices. You need a special ATAPI driver to run an IDE CD drive with 3.1.

Like I said, you can use IDEfix to see the CD drive on 3.1. But you have to take care not to install parts of IDEfix to the emergency disk.

Once you have an emergency disk, it can see the CD drive on its own.

[Solskogen]

I was able to use 3.1 to create a Emergency disk on the MiSTer. I just used the cd driver located in Storage/DOSDrivers. No IDEfix involved.