Hello,
I think you are talking about me :-)
I do have the exec.library ported to the coldfire 5282 (it was the first coldfire to have the USP/SSP implementation).
This coldfire exec.library is not compatible witht the 68k exec.library because of some differences in ExecBase!
For example, IDNestCnt and TDNestCnt have to be LONG since addq.b does not exist on CF and you cannot replace the addq.b by multiple instructions : the update of IDNestCnt and TDNestCnt must be done with one atomic instruction.
I have also a piece of timer.device translated into CF, it is necessary for the time slice part of the multi-tasking.
The project was put on hold, between the work and the family, it is hard to find some time.
Oh, BTW I had a though about how to provide a full CPU emulation on the Coldfire : we can use the trace mode and check if the instruction is compatible : when it is compatible you exit the exception and let the CF do the work when it is not you execute the emulated code. You can also use the debugging registers to separate the memory into two areas : one containing 68k code, one containing CF code (CF kickstart, libraries compiled for CF, etc...)
Regards,
Frederic
