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CM71-00105-1E FUJITSU MICROELECTRONICS LIMITED 133
FR81 Family
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.15
7.15 ASR (Arithmetic shift to the Right Direction)
Makes an arithmetic right shift of the word data in Ri by u4 bits, stores the result to Ri.
● Assembler Format
ASR #u4, Ri
● Operation
Ri >> u4 → Ri
● Flag Change
N: Set when the MSB of the operation result is "1", cleared when the MSB is "0".
Z: Set when the operation result is zero, cleared otherwise.
V: Unchanged.
C: Holds the bit value shifted last. Cleared when the shift amount is "0".
● Classification
Shift instruction, Instruction with delay slot
● Execution Cycles
1 cycle
● Instruction Format
NZVC
CC - C
MSB LSB
10111000 u4 Ri