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CHAPTER 6 DETAILED RULES FOR EXECUTION INSTRUCTIONS
6.25 CMPW (CoMPare Word Data of Accumulator and Temporary
Accumulator)
Compare the word data of A with that of T and set the results to CCR. A and T are not
changed.
■ CMPW (CoMPare Word Data of Accumulator and Temporary Accumulator)
Operation
(T) - (A)
Assembler format
CMPW A
Condition code (CCR)
+: Changed by executing instruction
-: Not changed
N: Set to 1 if the MSB is 1 as the result of operation and set to 0 in other cases.
Z: Set to 1 if the result of operation is 0000
H
and set to 0 in other cases.
V: Set to 1 if an overflow occurs as the result of operation and set to 0 in other cases.
C: Set to 1 if a carry occurs as the result of operation and set to 0 in other cases.
Number of execution cycles: 2
Byte count: 1
OP code: 13
NZVC
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