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/  Forum Index
   /  MorphOS Software
      /  SheetEater - MorphOS port of SheepShaver PowerMac emulator
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rzookol 
SheetEater - MorphOS port of SheepShaver PowerMac emulator
Posted on 19-Jul-2026 1:13:36
#1 ]
Regular Member
Joined: 4-Oct-2005
Posts: 323
From: Poland, Lublin

You can download it here:

https://github.com/rzookol/sheeteater/releases/download/SheetEater0.8/SheetEater.lha

Machine faster than 1.5Ghz required because emulation is quite slow. (powerpc on powerpc jit included but still slow).

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pavlor 
Re: SheetEater - MorphOS port of SheepShaver PowerMac emulator
Posted on 19-Jul-2026 7:43:41
#2 ]
Elite Member
Joined: 10-Jul-2005
Posts: 9795
From: Unknown

@rzookol

Probably not much useful because of speed, nice anyway.

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DiscreetFX 
Re: SheetEater - MorphOS port of SheepShaver PowerMac emulator
Posted on 20-Jul-2026 4:44:07
#3 ]
Elite Member
Joined: 12-Feb-2003
Posts: 2588
From: Chicago, IL

@rzookol

It’s the Sheet!!!

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Sent from my Quantum Computer.

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tlosm 
Re: SheetEater - MorphOS port of SheepShaver PowerMac emulator
Posted on 22-Jul-2026 11:24:39
#4 ]
Elite Member
Joined: 28-Jul-2012
Posts: 2763
From: Amiga land

@rzookol

As far as I remember, the preorder and purchase of this emulator cost me quite a bit. It was supposed to be a super‑cool virtualizer that would bring PowerPC to the classic Amiga and finally fill the gaps we had back then — and instead practically nothing worked: endless loading times and software that was basically unusable… a huge disappointment. And at the time I had a CyberStorm with a 604 at 233 MHz paired with the 060 and a CyberVision.”

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rzookol 
Re: SheetEater - MorphOS port of SheepShaver PowerMac emulator
Posted on 22-Jul-2026 11:56:57
#5 ]
Regular Member
Joined: 4-Oct-2005
Posts: 323
From: Poland, Lublin

@tlosm

You probably mention iFusion, not Sheepshaver. Sheepshaver was made for Beos originally by ShapeShifer author which convert asm later to C and created Basilisk2. Currently OS3, OS4 and Morphos has own Basilisk2 ports. Some of code from Basilisk2 is used in Sheepshaver, so gui/disk/audio/graphics/input was easily adopted.

The real problem is direct mode. In 90ties we used prepareemul to allocate first 4 or 8 kb which was used by macos for scratch memory. It worked nices in 68k ecosystem but fails on MorphOS on AmigaOS4.1. So i created simple JIT for interpreted PowerPC on PowerPC emulator. It gives around 80 mips on G5 PCIe 2.3. It's not that bad but most games require more. I'm checking the possibility to make direct mode for PPC, but is not that easy as 68k.

Last edited by rzookol on 22-Jul-2026 at 11:57 AM.

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tlosm 
Re: SheetEater - MorphOS port of SheepShaver PowerMac emulator
Posted on 24-Jul-2026 9:35:26
#6 ]
Elite Member
Joined: 28-Jul-2012
Posts: 2763
From: Amiga land

@rzookol

You’re absolutely right! Unfortunately, memory plays strange tricks as we get older… I had a real trauma with iFusion . SheepShaver, on the other hand, works perfectly on Mac. I used it a lot on my G5 with phenomenal performance I should have a video about it. Actually, I found it, and I’m sharing it!
SheepShaver and Windows 98 performances on G5 quad

Having SheepShaver up and running, guys, is amazing you can finally use on MorphOS applications that until not long ago were unthinkable to run natively. Too bad I no longer have my Pegasos II… I would have had a blast doing test after test.

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Amiboy 
Re: SheetEater - MorphOS port of SheepShaver PowerMac emulator
Posted on 26-Jul-2026 15:32:25
#7 ]
Super Member
Joined: 21-Dec-2003
Posts: 1146
From: At home (probably)

@rzookol

So glad I wasnt a little drunk when trying to read that thread title.........what a risky name to call the emulator

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