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annotate tomsfastmath/src/bin/fp_read_signed_bin.c @ 647:939cd3e22c87 dropbear-tfm

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- Fix constraints so we don't get warned about uninitialised variable (it isn't used as input by the asm)
author Matt Johnston <matt@ucc.asn.au>
date Wed, 30 Nov 2011 23:15:21 +0800
parents a362b62d38b2
children
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a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
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1 /* TomsFastMath, a fast ISO C bignum library.
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2 *
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3 * This project is meant to fill in where LibTomMath
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4 * falls short. That is speed ;-)
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5 *
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6 * This project is public domain and free for all purposes.
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7 *
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8 * Tom St Denis, [email protected]
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9 */
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10 #include <tfm.h>
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12 void fp_read_signed_bin(fp_int *a, unsigned char *b, int c)
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13 {
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14 /* read magnitude */
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15 fp_read_unsigned_bin (a, b + 1, c - 1);
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17 /* first byte is 0 for positive, non-zero for negative */
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18 if (b[0] == 0) {
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19 a->sign = FP_ZPOS;
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20 } else {
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21 a->sign = FP_NEG;
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22 }
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23 }
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25 /* $Source$ */
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26 /* $Revision$ */
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27 /* $Date$ */