mirror of
https://github.com/Cisco-Talos/clamav.git
synced 2025-10-19 10:23:17 +00:00
375ecf678c
Update the vendored TomsFastMath (TFM) library to v0.13.1. Resolves: https://bugzilla.clamav.net/show_bug.cgi?id=11992 I removed compatibility macro's from when libTomMath was used. This required removing a bunch of faux-error handling because the fast-math equivalent functions return void, and cannot fail. The previous version used had named the header "bignum_fast.h" instead of "tfm.h" and had customizations in that header to enable TFM_CHECK all the time, and also TFM_NO_ASM if __GNUC__ not defined or if the system isn't 64bit architecture. This update uses tfm.h as-is, and has CMake define TFM_CHECK and TFM_NO_ASM as needed. I've kept bignum.h as an interface to including tfm.h so that in the future we can more easily add support for system-installed TomsFastMath instead of the vendored one, taking inspiration from Debian's patch to support system-TomsFastMath. See: https://salsa.debian.org/clamav-team/clamav/-/blob/unstable/debian/patches/add-support-for-system-tomsfastmath.patch
94 lines
1.9 KiB
C
94 lines
1.9 KiB
C
#define TFM_DEFINES
|
|
#include "fp_sqr_comba.c"
|
|
|
|
#if defined(TFM_SQR7) && FP_SIZE >= 14
|
|
void fp_sqr_comba7(fp_int *A, fp_int *B)
|
|
{
|
|
fp_digit *a, b[14], c0, c1, c2, sc0, sc1, sc2;
|
|
#ifdef TFM_ISO
|
|
fp_word tt;
|
|
#endif
|
|
|
|
a = A->dp;
|
|
COMBA_START;
|
|
|
|
/* clear carries */
|
|
CLEAR_CARRY;
|
|
|
|
/* output 0 */
|
|
SQRADD(a[0],a[0]);
|
|
COMBA_STORE(b[0]);
|
|
|
|
/* output 1 */
|
|
CARRY_FORWARD;
|
|
SQRADD2(a[0], a[1]);
|
|
COMBA_STORE(b[1]);
|
|
|
|
/* output 2 */
|
|
CARRY_FORWARD;
|
|
SQRADD2(a[0], a[2]); SQRADD(a[1], a[1]);
|
|
COMBA_STORE(b[2]);
|
|
|
|
/* output 3 */
|
|
CARRY_FORWARD;
|
|
SQRADD2(a[0], a[3]); SQRADD2(a[1], a[2]);
|
|
COMBA_STORE(b[3]);
|
|
|
|
/* output 4 */
|
|
CARRY_FORWARD;
|
|
SQRADD2(a[0], a[4]); SQRADD2(a[1], a[3]); SQRADD(a[2], a[2]);
|
|
COMBA_STORE(b[4]);
|
|
|
|
/* output 5 */
|
|
CARRY_FORWARD;
|
|
SQRADDSC(a[0], a[5]); SQRADDAC(a[1], a[4]); SQRADDAC(a[2], a[3]); SQRADDDB;
|
|
COMBA_STORE(b[5]);
|
|
|
|
/* output 6 */
|
|
CARRY_FORWARD;
|
|
SQRADDSC(a[0], a[6]); SQRADDAC(a[1], a[5]); SQRADDAC(a[2], a[4]); SQRADDDB; SQRADD(a[3], a[3]);
|
|
COMBA_STORE(b[6]);
|
|
|
|
/* output 7 */
|
|
CARRY_FORWARD;
|
|
SQRADDSC(a[1], a[6]); SQRADDAC(a[2], a[5]); SQRADDAC(a[3], a[4]); SQRADDDB;
|
|
COMBA_STORE(b[7]);
|
|
|
|
/* output 8 */
|
|
CARRY_FORWARD;
|
|
SQRADD2(a[2], a[6]); SQRADD2(a[3], a[5]); SQRADD(a[4], a[4]);
|
|
COMBA_STORE(b[8]);
|
|
|
|
/* output 9 */
|
|
CARRY_FORWARD;
|
|
SQRADD2(a[3], a[6]); SQRADD2(a[4], a[5]);
|
|
COMBA_STORE(b[9]);
|
|
|
|
/* output 10 */
|
|
CARRY_FORWARD;
|
|
SQRADD2(a[4], a[6]); SQRADD(a[5], a[5]);
|
|
COMBA_STORE(b[10]);
|
|
|
|
/* output 11 */
|
|
CARRY_FORWARD;
|
|
SQRADD2(a[5], a[6]);
|
|
COMBA_STORE(b[11]);
|
|
|
|
/* output 12 */
|
|
CARRY_FORWARD;
|
|
SQRADD(a[6], a[6]);
|
|
COMBA_STORE(b[12]);
|
|
COMBA_STORE2(b[13]);
|
|
COMBA_FINI;
|
|
|
|
B->used = 14;
|
|
B->sign = FP_ZPOS;
|
|
memcpy(B->dp, b, 14 * sizeof(fp_digit));
|
|
fp_clamp(B);
|
|
}
|
|
#endif
|
|
|
|
|
|
/* $Source$ */
|
|
/* $Revision$ */
|
|
/* $Date$ */
|