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Re: Question about mounting ISO images R. Belmont 07/18/24 10:47 PM
Bugfixing the PowerPC emulation would definitely help POWER as well, yes. The PowerPC 601 used in the first PowerMacs is kind of a foot-in-both-camps chip that supports POWER instructions that aren't in later PowerPC chips.
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Re: Question about mounting ISO images mhoes 07/18/24 10:01 PM
Originally Posted by R. Belmont
ameath: I want PowerPC to work a lot and I'll be looking into that pretty soon.
@R. Belmont

Don't mean to highjack this thread - and forgive me, and please ignore - if the rest of this post results in garbage, but :

Isn't IBM's RS/6000 line (like the C10 model ?) based on the PowerPC architecture as well ? I seem to recall some very preliminary work being done for that platform, perhaps even by you ? If so, would any progress on PowerPC also benefit those systems ? Just curious.
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Re: Question about mounting ISO images R. Belmont 07/18/24 08:36 PM
ameath: I want PowerPC to work a lot and I'll be looking into that pretty soon.

Right now, if you use a System 7.6 boot floppy and write-protect it (turn off write permission on the file in whatever OS you run MAME under) the PowerMac 6100 will boot all the way into the installer with working mouse and keyboard. It's *so* close.
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Re: Question about mounting ISO images Vas Crabb 07/18/24 04:08 PM
Since it hasn’t been mentioned explicitly, if the CD has an Apple Partition Map, it can contain a SCSI CD-ROM driver that will be loaded by the boot ROM if the CD is in the drive at boot. This is how bootable CD-ROM installation media for 68k Macs works. Since your other ISO images lack a driver, you need to load one some other way (as you’ve discovered, the Apple CD-ROM software works).
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Re: Question about mounting ISO images ameath 07/18/24 03:15 PM
Thanks for the explanation, and for the excellent progress being made in this area. With very limited development of SheepShaver and Mini vMac, it is quite exciting to see where things are headed under MAME. If PowerPC machines eventually becoming available to emulate that will be brilliant.
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Re: Question about mounting ISO images R. Belmont 07/18/24 02:01 PM
Right, Systems below 7.5 need the CD-ROM software installed to mount CDs on the Finder desktop.

MAME has a "software list" of pre-vetted CD images in .CHD format (so they're compressed on disk and decompress on the fly) available where you find the ROMs. Right now it's only the Legacy Recovery disc and various System 7 and 8 versions, but more will be added in the future. (I'm in the process of compiling the Apple developer CDs into that format, and CD-ROM games should start appearing too).

There was a fix recently applied for dragging a CD-ROM into the Trash and having it eject properly, so if you're still on the last release some trickery is required to make that work. (Close all windows and applications from the CD, go into MAME's File Manager and change the CD-ROM to "empty", and then drag the icon into the Trash).
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Re: Question about mounting ISO images ameath 07/18/24 11:20 AM
OK, I figured it out myself. I was using System 7.1, and although some ISO images will mount right off the bat, such as the Apple Legacy Recovery CD, others need to have the Apple CD-ROM Software 5.1.1 installed first.
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Re: Trouble mounting two hard drive images R. Belmont 07/17/24 01:57 PM
Nah, that's not a thing. There's been an issue where the SCSI bus wasn't consistently named "scsi" across all of the supported Macs, and I still need to do an audit for that, but it should be mostly consistent now. maciifx definitely has the bus named "scsi" in any version where it actually can load from SCSI devices, so if you're on a recent git pull it should be fine.
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Re: Trouble mounting two hard drive images sairuk 07/17/24 09:46 AM
Originally Posted by R. Belmont
You can erase default devices with two quotes, that would be -scsi:3 "" and then there's no CD-ROM drive for instance.

This was the behaviour i was expecting but with the minor testing i did with maciici/maciifx machines it returns an "unknown option" error. i assume that is because scsi:3 (and 7) isn't exposed as a general mac_scsi_devices slot device, so i assumed was by design.
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