Build Success

is it possible to imagine something as using hdd studio to produce some sort of flat file
that can be an HDD image file and mount it as a regular drive or even fake it as an usb drive in rpcs3 ?

nope

It may sound absurd but is it possible to build and run rpcs3 on big iron ?
(eg sparc64/mips64)

not without modifications

But that wouldn't serve too much of a purpose, inaccuracy and incompletion is what our primary issues are, additional hardware will sadly not solve that.

Of course, but what i mean is basically:
More power to understand more complex mechanisms
8RISC CPU (8mb each) / 64gb RAM / 6 x72gb FC disks is certainly more powerful than modern PC

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Imagine a (really) powerful host , an attached usb to sata adapter with a ps3 sata hdd .
wouldn't it be useful for some purposes ?