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CHAPTER 6 DETAILED RULES FOR EXECUTION INSTRUCTIONS
6.46 MOVW (MOVE Word Data from Memory to Accumulator)
Transfer word data from EA and EA + 1 memories (EA is an address expressed in each
type of addressing) to A. Word data in A is transferred to T.
■ MOVW (MOVE Word Data from Memory to Accumulator)
Operation
(A) ← (EA) (Word transfer)
Assembler format
MOVW A, EA
Condition code (CCR)
+: Changed by executing instruction
-: Not changed
N: Set to 1 if MSB of transferred data is 1 and set to 0 in other cases.
Z: Set to 1 if transferred data is 0000
H
and set to 0 in other cases.
V: Not changed
C: Not changed
NZVC
++- -
Table 6.46-1 Number of Execution Cycles / Byte Count / OP Code
EA #d16 dir @IX+off ext @A @EP
Number of
execution cycles
34 4 5 3 3
Byte count 3 2 2 3 1 1
OP code E4 C5 C6 C4 93 C7