49 lines
779 B
C
49 lines
779 B
C
/*
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(c) copyright 1988 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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/* $Header$ */
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#include "flt_misc.h"
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#include <em_arith.h>
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flt_arith2flt(n, e, uns)
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register arith n;
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register flt_arith *e;
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{
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/* Convert the arith "n" to a flt_arith "e".
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*/
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if (!uns && n < 0) {
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e->flt_sign = 1;
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n = -n;
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}
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else e->flt_sign = 0;
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if (sizeof(arith) == 4) {
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if (n < 0) {
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e->m1 = 1; e->m2 = 0;
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}
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else {
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e->m1 = 0; e->m2 = n;
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}
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}
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else {
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if (n < 0) {
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e->m2 = 0;
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e->m1 = (1 << (sizeof(arith)*8-32));
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}
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else {
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e->m2 = n & 0xffffffffL;
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e->m1 = (n >> 32);
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}
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}
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if (n == 0) {
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e->flt_exp = 0;
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return;
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}
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e->flt_exp = 63;
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flt_status = 0;
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flt_nrm(e);
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}
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