On the MC68000 a copy of the processor condition codes can be obtained with the MOVE SR,<ea> instruction. On MC68010 processors and up however, the instruction MOVE CCR,<ea> must be used. Using the specific MC68000 instruction on later processors will cause a 680x0 exception since it is a privileged instruction on those processors. The GetCC() function provides a processor independent way of obtaining a copy of the condition codes. For all processors there are 5 bits which can indicate the result of an integer or a system control instruction: X - extend N - negative Z - zero V - overflow C - carry The X bit is used for multiprecision calculations. If used, it is copy of the carry bit. The other bits state the result of a processor operation.