And of course that's exactly what they did with Coldfire - rounding off the inconvenient corners of the ISA to produce CPUs with lower power requirements and able to run at higher clock speeds.
And of course that's exactly what they did with Coldfire - rounding off the inconvenient corners of the ISA to produce CPUs with lower power requirements and able to run at higher clock speeds.
They did it with the 68030 before Coldfire. They discarded a number of things (e.g. addressing modes) that seemed like good ideas for the <=68020 but didn't end up being used in practice.