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| 1 | /* $Header: /cvsup/minix/src/lib/ack/libp/mdl.c,v 1.1 2005/10/10 15:27:47 beng Exp $ */
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| 2 | /*
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| 3 | * (c) copyright 1983 by the Vrije Universiteit, Amsterdam, The Netherlands.
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| 4 | *
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| 5 | * This product is part of the Amsterdam Compiler Kit.
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| 6 | *
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| 7 | * Permission to use, sell, duplicate or disclose this software must be
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| 8 | * obtained in writing. Requests for such permissions may be sent to
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| 9 | *
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| 10 | * Dr. Andrew S. Tanenbaum
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| 11 | * Wiskundig Seminarium
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| 12 | * Vrije Universiteit
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| 13 | * Postbox 7161
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| 14 | * 1007 MC Amsterdam
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| 15 | * The Netherlands
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| 16 | *
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| 17 | */
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| 18 |
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| 19 | /* Author: J.W. Stevenson */
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| 20 |
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| 21 | #include <pc_err.h>
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| 22 |
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| 23 | extern _trp();
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| 24 |
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| 25 | long _mdl(j,i) long j,i; {
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| 26 |
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| 27 | if (j <= 0)
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| 28 | _trp(EMOD);
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| 29 | i = i % j;
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| 30 | if (i < 0)
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| 31 | i += j;
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| 32 | return(i);
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| 33 | }
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