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Gus 1.0d4

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[www].se [ftp].se [mirror].us
gus-gs-10d4.sit (9.58 MB)
For System 7.0 - 7.6 - Mac OS 9
Emulation
This app works with: SheepShaver,

Gus, an Apple IIGS emulator for Classic (PPC) Macintosh, the development of which was "unofficially" supported by Apple.

    While Apple discussed creating an LC plug-in IIgs card, they felt that the cost of selling it would be as much as an entire LC and abandoned it. However, the educational community had a substantial investment in the IIgs software as well, which made upgrading to a Macintosh a less attractive proposition than had been for the Apple IIe. As a result, Apple software designers Dave Lyons and Andy Nicholas spearheaded a program to develop a IIgs software emulator they called Gus in their spare time, which would run on the Power Macintosh only.

    Apple did not officially support the project. Nevertheless, seeing the need to help switch their educational customers to the Macintosh (as well as sell Power Macs), Apple unofficially distributed the software for free to schools and institutions that signed a non-disclosure agreement. It was never offered for public sale, but is now readily available on the internet, along with many third party Apple II emulators.

    Gus represents one of the few software emulators developed within Apple (officially or not), including MacWorks and Mac OS X Classic environment.

— excerpt:  Wikipedia

I've included with this archive, 2 disk image files pre-loaded with SSW 6.x for Apple IIGS and HyperCard IIGS (both are free DL's from Apple) plus a few other goodies such as the game Lost Tribes for IIGS, rEdit (similar to ResEdit) and GShrink, a IIGS compression program and more.

To Run: Extract the archive anywhere onto a PPC Mac running Mac OS 9.2.2 or earlier (or SheepShaver) and double-click the "Gus 1.0d4" icon inside the extracted folder and you're set to go.

Things for the IIGS novice to watch for: Little; its very similar to using a classic Mac OS, menu-wise.
Shutting down the emulator; Go to the IIGS "Special" menu and choose "Shutdown", then quit the emulator itself.
Gus can read/write to Disk Copy 4.2 (ProDOS formatted) image files. Placing any image file that can be read/written to, inside the same folder as Gus will be mounted as a disk in the emulator when it launches.

MD5 checksum: 8631d662ac124aea6987a99582649959 *gus-gs-10d4.sit

See also:
][ in a Mac, Stop The Madness, IIe, Bernie ][ The Rescue, Bernie ][ The Rescue Anthology (Starter Kit 3.0)

Compatibility
Architecture: PPC

PPC only. Mac OS from 7.5 to 9.2.2. Also on SheepShaver (any platform SheepShaver can run on).

Comments

IIGS_User's picture
by IIGS_User - 2010, November 4 - 7:41pm

Gus can read/write to Disk Copy 4.2 (ProDOS formatted) image files. Placing any image file that can be read/written to,

GS/OS can handle foreign formatted disks by using File System Translators, like:
Apple DOS 3.3 (The Apple O/S on prev. Apple ][ systems), HFS (which is classic Mac OS), MS-DOS (read-only), and probably others, but I can't remember yet.

From my own experience from that time, classic Mac OS formatted disks can only be handled,
if formatted with Mac OS up to 7.x, but Mac OS 8.x formatted disks had some issues.
GS/OS has been abandoned at this time, so it got no updates to handle Mac OS 8.0 formatted disks.

From the bottom, the Apple IIGS (remember: it's not a Mac) can handle GS/OS, which is its native System, as well as older Apple ][ operating systems such as Apple DOS 3.3, ProDOS and ApplePascal.

Temporary Joe's picture
by Temporary Joe - 2010, November 4 - 6:51pm

How does this stack up to Bernie ][ The Rescue?

MikeTomTom's picture
by MikeTomTom - 2010, October 20 - 2:23am

@Vitoarc: Many Mac games written for Mac SSW 6 will still be able to run on Mac OS 7 etc, it will be a process of elimination on your part.

The only early Macintosh OS emulator I know of that can run on a PPC Mac running OS 8 or 9 and is still under active development, is Mini vMac [See Downloads Page for Mini vMac here].
The Classic Mac OS port of Mini vMac will emulate a 68k Macintosh Plus only, but this is fine for hundreds of old B/W games of the era, and you can run a Mac System from SSW 1.1 to Mac OS 7.5.5 on a Plus. - You are able to play very early games on this. Requires a Mac Plus ROM.

Vitoarc's picture
by Vitoarc - 2010, October 20 - 12:12am

Thanks Mike. Really all this "backwards" learning can be daunting at times. There's more to learn about the old Mac OS than I had thought. I've never heard of GS/OS before so I didn't know.

If someone can recommend an emulator that runs on a Power Macintosh, System 7,8, or 9 that emulates the Mac OS System 6, that's what I'm looking for.

MikeTomTom's picture
by MikeTomTom - 2010, October 19 - 11:46pm

@Vitoarc:

Will this run System 6 games on my PPC?

Which System 6? If you mean Macintosh System 6, then No. It does not run Macintosh software.

This is an Apple IIGS emulator that happens to run on a Macintosh. The emulator runs Apple GS/OS (System software version 6.01). See the link IIGS_User gave.

If you do want to play GS/OS System 6 games on Gus, then some of these might appeal.

Vitoarc's picture
by Vitoarc - 2010, October 19 - 6:51pm

What's the distinction? Will this run System 6 games on my PPC? That's all I want.

IIGS_User's picture
by IIGS_User - 2010, October 19 - 6:09pm

Great upload! This is a really good solution for running System 6 on my 7100. Thanks for all the tips as well.

You're talking about System 6 for Apple IIGS. Wink

Vitoarc's picture
by Vitoarc - 2010, October 19 - 4:17pm

Great upload! This is a really good solution for running System 6 on my 7100. Thanks for all the tips as well. Smile

IIGS_User's picture
by IIGS_User - 2010, August 7 - 3:28pm

While Apple discussed creating an LC plug-in IIgs card, they felt that the cost of selling it would be as much as an entire LC and abandoned it.

Finally, there was an //e card for the LC slot.

And, ah, HyperCard IIGS in colour, I remember using it a lot.

Thank you too for the detailed description of this emulator.

MCP's picture
by MCP - 2010, August 7 - 1:50pm

Bolkonskij, I keep some emulators on hand for use on Mac OS 9 or earlier in the Old Mac Archive, including Bernie ][ The Rescue, a IIGS emulator.

If "Gus" works well for me, I'll add it to my emulator collection also.

MikeTomTom's picture
by MikeTomTom - 2010, August 7 - 1:38pm

You are very welcome. I hope that it works as well for you as it does on my Mac.

Bolkonskij's picture
by Bolkonskij - 2010, August 7 - 12:30pm

Thank you for this upload and the very detailed information / screenshots. Awesome! Never had a IIGS, never emulated one. This is going to be the first time Smile