67 lines
1.3 KiB
C
67 lines
1.3 KiB
C
/* Copyright 1986, 1989, 1990 by Abacus Research and
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* Development, Inc. All rights reserved.
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*/
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#if !defined (OMIT_RCSID_STRINGS)
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char ROMlib_rcsid_bindec[] =
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"$Id: bindec.c 63 2004-12-24 18:19:43Z ctm $";
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#endif
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/* Forward declarations in BinaryDecimal.h (DO NOT DELETE THIS LINE) */
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#include "rsys/common.h"
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#include "rsys/glue.h"
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A2(PUBLIC trap, void, NumToString, LONGINT, l, StringPtr, s)
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{
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register Byte *p = s+1;
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register LONGINT d;
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if (l == 0) {
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s[0] = 1;
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*p = '0';
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return;
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} else if ((uint32) l == 0x80000000L) {
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register char *q = "-2147483648";
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s[0] = 11;
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while (*q)
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*p++ = *q++; /* DON'T put the null byte in */
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return;
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} else if (l < 0) {
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*p++ = '-';
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l = -l;
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}
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d = 1000000000L;
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while (!(*p = l / d)) /* must find something */
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d /= 10;
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l -= d * *p;
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d /= 10;
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*p++ += '0';
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while (d) {
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l -= (*p = l / d) * d;
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*p++ += '0';
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d /= 10;
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}
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s[0] = p - (s+1);
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}
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A2(PUBLIC trap, void, StringToNum, StringPtr, s, LONGINT *, lp)
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{
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register char *p = (char *)s+1;
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register char *ep = p + s[0];
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register LONGINT l = 0;
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int sign = 1;
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if (p != ep) {
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if (*p == '+')
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p++;
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else if (*p == '-') {
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p++;
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sign = -1;
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}
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}
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while (p != ep)
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l = l * 10 + (*p++ & 0xF);
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*lp = sign * l;
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}
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