Emulating OS4

[swift240]

I think its just a matter of time before its done.

To emulate OS4.0 is not impossible, to emulate an PPC system is not imposible.

So its just a matter of some clever person to do just that and put it all together.

I will give it a year and we will see an emulated version of some kind that does work.

I can not afford a PPC card, or any thing that will run OS4.0, so for the likes of me and others I feel an emulation will be good.

Its going to happen sooner or later.

BUT if I could afford the money I would buy a PPC card or something that would be good enough to run OS4.0

But as it is a lot of people out there just dont have the money its as simple as that, so emulation comes in at some point. (noy JUST because of the money side of it)

But because it can be done.
WINuae and Amikit is an idea of what can be done.

My signature is my Amiga system, I cant see it getting any better than that because I dont have the money so an emulated system would be great and I would go for that.

There are a lot of people out there who rely on emulated Amiga systems of one sort or another.

I have the real thing and AmiKit, If I am truly honest I use Amikit over the real thing simply becasue its faster more powerfull.
I think the same would be for OS4.0 as an emulation. (depending of your PC that is)


Mike.

[bloodline]

beakster2 wrote:


I think the best way to get OS4 emulation would be to add PPC support to UAE.  This would give UAE the ability to emulate an A1200/4000 with a PPC card, and hence boot the OS4 Classic which is available to buy.

That would be the most compatible and fun for sure, but don't think it's just a simple case of adding a PPC emulator thread to UAE... I suspect the PPC has complex timing interactions with both the Amiga and the 68k which have to be met in order for it to work like a PowerUP board :-(

Probably the only person here with even the slightest knowledge on the subject is Piru, and even then I doubt he has the time or the motivation do undertake such a task :-)

[AndrewBell]

downix wrote:
or the Amiga Kickstart 3.1 image w/ an m68k emulator.

That is incorrect. A small 68k program called Bootloader is used to load the Kickstart directory contents into ram and reboot the machine in PPC only mode. An emulator modified to boot OS4 could do this automatically and negate the need for 68k and KS3.1.

Amiga chipset emulation, on the other hand, does seem to be necessary, at least in my one experience of installing OS4. During installation the only video output I could display was from the RGB connector, my CVPPC seemed to be initialised but did not output any signal.
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Vermont Marijuana Dispensary

[AndrewBell]

bloodline wrote:

beakster2 wrote:


I think the best way to get OS4 emulation would be to add PPC support to UAE.  This would give UAE the ability to emulate an A1200/4000 with a PPC card, and hence boot the OS4 Classic which is available to buy.

That would be the most compatible and fun for sure, but don't think it's just a simple case of adding a PPC emulator thread to UAE... I suspect the PPC has complex timing interactions with both the Amiga and the 68k which have to be met in order for it to work like a PowerUP board :-(

Those timing interactions are only relevant when the 68K and PPC have to co-exist, and under OS4 the 68K is turned off.
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Digital Vaporizer

[Jeff]

@AndrewBell

What frequency is the output of AGA during the OS4 installation? Is it standard 31khz or 15khz?

Thanks,
Jeff

[AndrewBell]

Jeff wrote:
@AndrewBell

What frequency is the output of AGA during the OS4 installation? Is it standard 31khz or 15khz?

Thanks,
Jeff

15KHz, I had to connect to the TV during install. After I posted about that I looked at the CD startup-sequence, and it seems that my CVPPC was ignored because my Cyberstorm has the last firmware, with the G-Rex cybpci.library. The SS checks for its' presence, and if found will ignore the CVPPC.
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Ford futura

[Jeff]

Thank you for the reply:-)

[AMC258]

I did install OS4 on my A3000 without AGA...  In fact, I didn't need the ECS either.  My Voodoo 5500 worked from the gitgo.

[AndrewBell]

AMC258 wrote:
I did install OS4 on my A3000 without AGA...  In fact, I didn't need the ECS either.  My Voodoo 5500 worked from the gitgo.

When I said AGA might be needed, I actually meant Amiga chipset emuluation might be needed. After a closer look, I found out that my issue was caused by using the last version of the CSPPC firmware without a G-Rex. I didn't plug my Voodoo in until after I had installed OS4.
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Herbal Vaporizers

[Seiya]

maybe a day we have WinUAE PPC..
sheepshaver emulates a MacOS PPC very well with a P3 1 GHz, as 603e (not MacOSX, but Macos PPC from 8.5 to 9.04)

I think isn't impossibile to add PPC emulation to WinUAE.
Today i think many winuae users want a PPC emulation.

[xeron]

Yes, thats because if a G-Rex is present, if the install disk tries to initialise a CVPPC, it crashes. Without G-Rex documentation they couldn't fix this.

In most cases, the OS4 install automatically shows up on any connected OS4 compatible gfx card screen.

I'm pretty sure Hyperion would consider any usage of OS4 on an emulator to be against the EULA. Whether or not that stops you is up to you i guess.

I'm also pretty sure the hardware situation will be sorted out.

[persia]

Would it be possible, if you already owned an A!, to save the CVPPC information to a file and then use that file with PearPC?  

Actually the information must already exist in Moana, has anyone looked at what Moana is supposed to do?