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Old 24 May 2020, 08:03   #141
torsti76
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Quote:
Originally Posted by JimDrew View Post
Can you explain what you mean by this? Does FUSION give you an error message or something? FUSION just does a standard device driver Open() with the unit passed in. If the device driver fails to open then it would report an error (fail to start the emulation).
No, Fusion doesn't give me an error message. The problem only manifests itself "inside" the emulation:

When I set up Fusion with the enc624j6net.device unit 0, it successfully starts and boots into my generic MacOS 8.1 installation. But in MacOS, it fails to recognize the card as an 'Ethernet' device. Any previous TCP/IP settings are ignored and if I dare to open the TCP/IP control panel in MacOS, it tells me that the previously chosen 'Ethernet' is no longer available and that it's falling back to 'MacIP'. This isn't particularly useful if the main goal is to get the virtual Mac to connect to the internet.

The described behaviour can be seen with other network devices I tried as well, e.g. x-surf100.device (for the X-Surf 100 card by Individual Computers) or mediatornet.device (for Realtek 8029 10 Mbit cards in a Mediator).

BUT, there are also devices that behave as I would have expected. With those devices, the MacOS TCP/IP control panel shows 'Ethernet' as a choice in the top toggle field where one can select between 'PPP', 'MacIP' and so on. If I chose 'Ethernet' there, I can set up IP address, netmask, gateway, etc. and the emulated Mac is able to connect to the internet as well as to my local Linux boxes, etc.
Examples for such working drivers are fastethernet.device (for Realtek 8039 cards in a Mediator) or nullsana.device (a kind of virtual bridge device that can be found on aminet).

What puzzles me is the question what the difference between those device drivers might be that for some drivers 'Ethernet' in MacOS is possible and for some it isn't. I hope, you can shed some light on this...
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Old 24 May 2020, 21:28   #142
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Whatever device is used MUST be fully SanaII compliant. It sounds like these devices (their device drivers) are missing some of the functionality that is required for the Mac to see them as Ethernet devices.
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Old 24 May 2020, 21:54   #143
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Whatever device is used MUST be fully SanaII compliant. It sounds like these devices (their device drivers) are missing some of the functionality that is required for the Mac to see them as Ethernet devices.
I've got a debug version of the enc624j6net.device from its developer and will try to find out what's missing there.

I'm positive we'll figure it out.
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Old 01 June 2020, 03:18   #144
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Yeah, just log the device driver function calls that are attempted. The device driver is suppose to return -1 (not supported) when there is call that is not supported.
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Old 11 July 2021, 14:12   #145
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Well, this topic is quite old. But I read about iso.device which helps mount .toast image on Amiga side. So can I have more informatiuons please? Jim?

And you said:

That is not true. You do not need a MMU ever. None of the video drivers for FUSION that actually *requires* a MMU. There is a definite speed difference though when you don't have a MMU! The MMU can be used to determine when the Mac video memory has been changed and trigger an update in the Amiga screen.

But in the Fusion guide I read:

"This driver opens screens the MAC can draw into
directly on any Picasso96 compatible card. If you do not have an MMU,
only 256 colors are supported. The PicassoIV and PiccoloSD64 both support
direct thousands mode with an MMU. The CyberVision supports direct thous-
ands and millions modes with an MMU. There is no CyberVision3D driver for
Picasso96 at this time. All other cards only support 256 colors. Cards
with blitters can be used to accelerate the MAC video".

So do I need MMU for p96DirectXL and thousands/millions colors mode or not?

Last edited by OSH; 12 July 2021 at 09:40. Reason: added some content
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Old 14 August 2021, 07:21   #146
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The iso.device driver that I created lets you use that to emulate the low-level functions of a CD-ROM drive, using just the .iso image file. This is not for the Amiga, but I guess you could make a DOSDriver or mountlist image with a filesystem handler to allow the Amiga side to read the data.

The P96DirectXL is 256 color only for the Picasso II and other boards without the MMU. You have to use the P96Refreshed driver in order to have thousands/millions support without the MMU.

Incidentally, I just saw you question (a month later). Questions about my products should be addressed to me via the support forum on my website: www.cbmstuff.com
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Old 30 November 2021, 22:22   #147
reflex
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hello Jim,
i use Fusion on my heavy expanded Amiga 4000 and I successfully managed to install MacOS 8.1 with a quadra 950 rom but everytime I launch the program i get the message "unable to inizialize audio device" or something like this, i have to disable audio to start the emulator.
What could cause this strange behavior?
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Old 05 December 2021, 12:31   #148
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What are using for audio, PAULA directly or a device driver like AHI?
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