AROS68K and the Freescale Coldfire CPU

[eb15]

There's nothing stopping anyone from porting AROS to the coldfire right now except a lot of work and no real market incentive to do so.  Currently AROS m68k-amiga is only partially complete and unoptimized in many areas like the native chip set graphics driver, so its currently slower than AmigaDOS 3.1.  

While the m68k work is wonderful and is helping AROS to mature, I don't think it will remain much of a focus after its "done" (as in being a decent replacement for kickstart 3.1 ROMS) because the other architectures are getting all the benefits of its work, and other AROS improvements like the ongoing gallium work (supporting OpenVG and OpenGL hardware acceleration) are more likely to be worked on and targeted for ARM and x86 based hardware.

[eb15]

While I think you might have fun making a coldfire port of AROS, it seems to be limited to plain old PCI bus for the graphics.  Under AROS x86 with the nouveau driver there is a performance increase going from PCI to AGP to PCIe support.  It looks to me like ARM cortex devices would be more modern HD multimedia friendly than the coldfire because they can interface internally to their graphics subsystems and not run through a slower external bus interface, though I suppose someone would have to benchmark the two using similar code to be sure.