On 8/24/21 3:34 AM, Diane Bruce via cctalk wrote: > Indeed. Just its addressing modes, with indirection and two separate register > indexing operations, are hairy enough. Then consider the decimal arithmetic > instructions that might have up to 6 operands. > > And who can ever forget the built in CRC instruction? > > Amusingly it was demonstrated that many of the CISC instructions were > faster if one just did them with the 'normal' instruction set.
Feh, many ARM Cortex MCUs have a hardware CRC generator. Where's the vector dot product instruction or the transpose instruction? How about the search masked masked key? If CPU doesn't have a variable-length decimal divide it isn't really CISC in the grand sense. --Chuck
