Motorola Coldfire

The Motorola Coldfire is a 68k architecture microprocessor manufactured for embedded systems development by Motorola (now Freescale Semiconductor).

The Coldfire instruction set is "assembly source" compatible (by means of translation software available from the vendor) and not entirely object code compatible with the 68000. Presumably this results in a simpler and lower cost instruction decoder. Also, floating point intermediates are 64 bits and not 80 bits as in the 68881 and 68882.