Lsr2 (Logical Shift To The Right Direction) - Fujitsu FR Family Instruction Manual

7.49

LSR2 (Logical Shift to the Right Direction)

Make a logical right shift of the word data in "Ri" by "{u4 + 16}" bits, store the result to
"Ri".
■ LSR2 (Logical Shift to the Right Direction)
Assembler format: LSR2 #u4, Ri
Operation: Ri > > {u4 + 16} → Ri
Flag change:
N: Cleared
Z: Set when the operation result is "0", cleared otherwise.
V: Unchanged
C: Holds the bit value shifted last.
Execution cycles: 1 cycle
Instruction format:
Example: LSR2 #8, R3
N Z V C
0 C – C
MSB
1 0 1 1
Instruction bit pattern :
1011 0001 1000 0011
R3
F F F F F F F F
N Z V C
CCR 0 0 0 0
Before execution
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
0 0 0 1 u4
LSB
Ri
R3
0 0 0 0 0 0 F F
N Z V C
CCR 0 0 0 1
After execution
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