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32 lines
469 B
Plaintext
32 lines
469 B
Plaintext
;
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; RANDOM - RANDOM NUMBER GENERATOR (STOLEN FROM MUDDLE)
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;
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; This file is PDP-10 dependent, system-independent.
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;
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TITLE RANDOM
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.INSRT SS:<C>CINSRT
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.INSRT SS:<C>MINSRT
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CENTRY SRAND,[SEED]
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MOVE A,SEED
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ROT A,-1
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MOVEM A,RLOW
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RETURN
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CENTRY RAND
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MOVE A,RHI
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MOVE B,RLOW
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MOVEM A,RLOW ;Update Low seed
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LSHC A,-1 ;Shift both right one bit
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XORB B,RHI ;Generate output and update High seed
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MOVE A,B
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RETURN
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.IDATA
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RHI: 267762113337
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RLOW: 155256071112
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.PDATA
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END
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