Usage: CMP dest,src Modifies flags: AF CF OF PF SF ZF Subtracts source from destination and updates the flags but does not save result. Flags can subsequently be checked for conditions. Clocks Size Operands 808x 286 386 486 Bytes reg,reg 3 2 2 1 2 mem,reg 9+EA 7 5 2 2-4 (W88=13+EA) reg,mem 9+EA 6 6 2 2-4 (W88=13+EA) reg,immed 4 3 2 1 3-4 mem,immed 10+EA 6 5 2 3-6 (W88=14+EA) accum,immed 4 3 2 1 2-3 - see Instruction Timing