So where did the PPC amiga thing come from?

[Kronos]

Only because nobody wrote a PowerUP/WarpOS style kernel to run on the x86 chips on the cards.

Which would have been quite an achievement considering that both CPUs were completly seperated except for those 128kb Janus-Mem while PPC and 68k could both directly access the whole addressrange.

[Kronos]

@bloodline
Being connected to the 68k-socket (or turbe-slot in the A2000) doesn't mean they have full access to the Amiga-addressspace.

Having 2 (different) CPUs on the same bus was what made the P5 cards so expensive and there was no need for that on a bridgeboard. All you needed is some form of communication and some helper task on the 68k-side to emulate  PC-GFX, ports and massstorage (or on the x86 side if you were useing stuff from the Amiga side).

By that definition RiscOS would also been x86 as atleast the RiscPC could host small 386 (486 ?) system via a special slot on the mobo.