38 lines
668 B
C
38 lines
668 B
C
/*
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(c) copyright 1989 by the Vrije Universiteit, Amsterdam, The Netherlands.
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See the copyright notice in the ACK home directory, in the file "Copyright".
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*/
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/* $Id$ */
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#include "flt_misc.h"
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void
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flt_nrm(e)
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register flt_arith *e;
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{
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if ((e->m1 | e->m2) == 0L) {
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e->flt_exp = 0;
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e->flt_sign = 0;
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return;
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}
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/* if top word is zero mov low word */
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/* to top word, adjust exponent value */
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if (e->m1 == 0L) {
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e->m1 = e->m2;
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e->m2 = 0L;
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e->flt_exp -= 32;
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}
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if ((e->m1 & 0x80000000) == 0) {
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long l = 0x40000000;
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int cnt = -1;
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while (! (l & e->m1)) {
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l >>= 1;
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cnt--;
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}
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e->flt_exp += cnt;
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flt_b64_sft(&(e->flt_mantissa), cnt);
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}
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}
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