Mameworld hosting is now back online, and there is a substantial progress report on Mac emulation under MAME as of start of 2026:

https://rbelmont.mameworld.info/

Following the “breakthrough” ability to boot a 6100 it’s been a while since anything has been mentioned.

As we approach the end of the year, I was wondering if there have been any tentative developments in this space? Are there intractable issues that will prevent further improvements anytime soon ...

Yes, in my instructions above I make an assumption that the supporting files (drives and images) are kept in the same location as the SheepShaver executable and preferences file, so the full path is not required. If you keep your drives and images elsewhere, you do have to provide a full path.

I was able to get this working in the same System 7 installation used with Lunicus, noted above.

The BIN/CUE and pre-installed game on a hard drive image are available here:

Hard drive: https://www.dropbox.com/scl/fi/0uq6q91btms995so6a1f7/hd100.zip?rlkey=w98t4v6vtd945m414ewzdzjk4&dl=0
BIN/CUE ...

Glad to hear it worked for you. Some games in SheepShaver can just be quirky, particularly those that are speed sensitive or which expect specific hardware feedback that isn’t fully emulated.

While MAME now offers a purer hardware emulation environment, it carries a steeper learning curve to ...

It seems to run fine for me in System 7.5.5. I am also running SheepShaver in Windows 11.

You might be having a problem because you are trying to run it in MacOS 8.1, whereas the game was released in 1994.

System 7.5.5: https://www.dropbox.com/scl/fi/lh8zqes94sbdeitdab6cl/hd100.img?rlkey ...

I don’t think you are doing anything wrong in terms of configuration or settings, as I’ve experienced the same issues with IIfx emulation under MAME for months now.

I found that using an older version of MAME (0.268) is more stable with the IIfx but it does not entirely eliminate the flashing disk ...

Thanks for confirming that. A speed throttle will definitely be useful to ensure accuracy and usability for many apps.

Sound appears to be a key challenge in emulating the PPC 601 processor, given it is presenting issues for both the MAME and DingusPPC projects. For the former it is scratchy and ...

It's coming along nicely. I still get freeze ups when sound is played in either the sound control panel or in various applications (running System 7.1.2 on a Power Macintosh 6100).

I was wondering if there is a speed control / throttle command line parameter?

Sorry for going off on a complete tangent, but for Windows 3.x software I recommend giving otvdm a try. It's an open source API translator that allows Win16 (and DOS) applications to run sort of natively on a modern Windows computer.


Thanks, I will check that out. Generally, I am happy to run ...

The game seems to play perfectly in my prebuilt MacOS9 for Windows app. I simply drop the ISO (from archive.org) on to the MacOS9.exe launcher and follow the prompts. Here it


Which is all the more puzzling, given the title was released in 1995 and was supposedly designed for System 7.5 or ...

I should clarify that I was trying to get it work in the Windows version of SheepShaver. Whether I add it as a 'disk' or 'cdrom', either way it is still failing to show up as a readable disc image. This happens in System 7.5.5.

I managed to get the game to run under a Windows 3.11 installation in ...

I've just tested it in MAME (System 7.1, Quadra 800) and it does work properly with the mount command "-cdrom", mounting as TREASURE on the desktop. So this is an issue specific to SheepShaver and Basilisk II.

I have tried to mount an ISO of the 1995 CD "Treasure Island Interactive" by Hollywood Interactive Digital Entertainment. It is supposedly a dual format "Windows 3.1 and Macintosh" CD. In System 7.5.5 in SheepShaver it is giving me the error that the disc is unreadable and needs to be initialized ...

joevt wrote: Thu Mar 06, 2025 6:29 am

adespoton wrote: Thu Mar 06, 2025 4:14 am Finally got around to testing out MAME 0.275 -- PBD emulation is great!

PBD?

PowerBook Duo

Glad to see the bit depth issue and memory limit both resolved in the nightly build. :smile:

That leaves some "harder" issues now I guess - sound and/or video corruption. I don't know if the video corruption occurs across the board, as I have only tested a few LucasArts CD-ROM games.

Also, quite ...

I tried installing System 7.5 on top of an existing 7.1 installation and used that to boot with the Power Macintosh 6100. It works! I am using a build of MAME from 18 January.

- boot chime sounds normal
- speed seems good
- starts in 256 colors and will go to a red screen and freeze if switched to ...

I did say booting 7.1.2 hard drive in DingusPPC is broken and requires some fixes that only exist in my fork currently. The fixes should eventually get upstreamed.
https://www.emaculation.com/forum/viewtopic.php?p=80183#p80183


And that's fine and acknowledged - I was just laying out my findings ...

Thanks for the disk images, that has sped up the testing process.

This is what I can confirm so far:

1. The blank DMG above works fine in DingusPPC with System 7.5.5 installed onto it. So I know the image is OK.
2. The System 7.1.2 ISO (691-0187-A,Power Macintosh 6100-60-60AV, 7100-66-66AV, and ...

Seems odd to me though that Disk Jockey-formatted images wouldn't work. It must be installing the 68k SCSI driver instead of the PPC one?


Perhaps. I tried both the Windows and macOS versions of Disk Jockey, with the same result: DingusPPC recognizes the image in the terminal, but upon boot, the ...

Hmm, the lengths I will go to to test stuff .. installing Leopard in order to create a DMG that will hopefully load in DingusPPC so that I can then install 7.1.2 onto it and perhaps make it boot in MAME, even though it's very much a work in progress.. sounds like fun! ;-)

I happen to have a ...

I use Leopard 10.5.8 in a virtual machine to create disk images:


Thanks for this information. I have access to a Mac running Mojave, so I will try creating a DMG image formatted to HFS+ and see if that works. I know Mojave is a lot more recent than Leopard, but perhaps it will work.

Of course ...

I would be happy to try that, but I have run into problems with Dingus PPC. I cannot get any hard drive images to work with that program. I can only boot off a System CD image.

I tried creating HDA images using Disk Jockey (with the default Blue SCSI setting), and while they are recognized by ...

I have searched high and low for a System 7.1.2 CD image that matches the checksum above.

All I can find so far is listed below, obtained from the aforementioned sites. Clearly, none of these are the one I need. That specific CD must be exceedingly rare and/or hiding inside online forums rather ...

Are you referring to the one labelled as "System 7.1.2P (Performa 630CD, 635CD, 638CD) (CD)" on the Macintosh Repository?

If so, I tried booting off this one and got the message: "This startup disk will not work on this Macintosh model. Use the latest Installer to update this disk for this model ...