This questiion goes to compare MC9S08 and ColdFire in speed.
How longer does it take a ColdFire core to execute a byte arithmetic instruction given that it works in 32 bits? I mean, in the 8-bit microcontroller, adding two 8-bit variabes is just that; but in a 32-bit microcontroller it needs to complete he 32 bits for each opperand firts, right? Should I give the ColdFire a higher bus speed to achieve the 8-bit variables addition in the same time?
Can anybody clarify this for me please?