68060 and the 68882

[psxphill]

Trapping would slow the CPU down to a crawl.

Not if you patch the instruction when it traps, so it won't trap the next time.

[psxphill]

So to claim that "there is nearly NO software that takes advantage of a peripheral math copro" is absolute nonsense, you either haven't looked hard enough or don't use a FPU otherwise you would already know this...

He's talking about using a 68881/68882 in memory mapped mode. I don't remember any software supporting that on the Amiga, you'd struggle to actually find the hardware as well. It was only the 68000/68010 that needed it, on the 68020+ it worked as a coprocessor.

[psxphill]

Sorry for necro-bumping this, but just one correction: MuRedox *does* patch all FPU and integer instructions, quite unlike other programs. The interesting part of it is a "code generator" that creates the necessary stub-code on the fly. That is, if a missing instruction is used for the first time, the program appears a little bit slower as MuRedox first needs to create the necessary code, but it will "learn" quickly.

does it work if you have a 68060 without an mmu or fpu?