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Task/Fibonacci-sequence/360-Assembly/fibonacci-sequence.360
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Task/Fibonacci-sequence/360-Assembly/fibonacci-sequence.360
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FIBONACC CSECT
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USING FIBONACC,R12
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SAVEAREA B STM-SAVEAREA(R15)
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DC 17F'0'
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DC CL8'FIBONACC'
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STM STM R14,R12,12(R13)
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ST R13,4(R15)
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ST R15,8(R13)
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LR R12,R15
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* ---- CODE
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LA R1,0 f1=0
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LA R2,1 f2=1
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LA R4,1 i=1
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LA R6,1
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LH R7,N
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LOOP BXH R4,R6,ENDLOOP for i=2 to n
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LR R3,R2
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AR R3,R1 f3=f1+f2
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CVD R4,P i
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UNPK Z,P
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MVC C,Z
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OI C+L'C-1,X'F0'
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MVC WTOBUF+5(5),C+11
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CVD R3,P f3
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UNPK Z,P
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MVC C,Z
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OI C+L'C-1,X'F0'
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MVC WTOBUF+12(10),C+6
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WTO MF=(E,WTOMSG)
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LR R1,R2 f1=f2
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LR R2,R3 f2=f3
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B LOOP next i
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ENDLOOP EQU *
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* ---- END CODE
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RETURN EQU *
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LM R14,R12,12(R13)
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XR R15,R15
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BR R14
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* ---- DATA
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N DC H'46' max i
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P DS PL8
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Z DS ZL16
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C DS CL16
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WTOMSG DS 0F
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DC H'80'
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DC H'0'
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WTOBUF DC CL80'fibo(12345)=1234567890 '
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YREGS
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END FIBONACC
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