/* -*-c-*-
*
- * $Id: mpx-kmul.c,v 1.8 2002/10/09 00:36:03 mdw Exp $
+ * $Id$
*
* Karatsuba's multiplication algorithm
*
* (c) 1999 Straylight/Edgeware
*/
-/*----- Licensing notice --------------------------------------------------*
+/*----- Licensing notice --------------------------------------------------*
*
* This file is part of Catacomb.
*
* it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
- *
+ *
* Catacomb is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
- *
+ *
* You should have received a copy of the GNU Library General Public
* License along with Catacomb; if not, write to the Free
* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*/
-/*----- Revision history --------------------------------------------------*
- *
- * $Log: mpx-kmul.c,v $
- * Revision 1.8 2002/10/09 00:36:03 mdw
- * Fix bounds on workspace for Karatsuba operations.
- *
- * Revision 1.7 2000/10/08 15:48:35 mdw
- * Rename Karatsuba constants now that we have @gfx_kmul@ too.
- *
- * Revision 1.6 2000/10/08 12:11:01 mdw
- * Use @mpx_ueq@ instead of @MPX_UCMP@.
- *
- * Revision 1.5 2000/07/29 17:04:02 mdw
- * Remove useless header `mpscan.h'.
- *
- * Revision 1.4 2000/06/17 11:42:11 mdw
- * Moved the Karatsuba macros into a separate file for better sharing.
- * Fixed some comments.
- *
- * Revision 1.3 1999/12/13 15:35:01 mdw
- * Simplify and improve.
- *
- * Revision 1.2 1999/12/11 10:58:02 mdw
- * Remove tweakable comments.
- *
- * Revision 1.1 1999/12/10 23:23:51 mdw
- * Karatsuba-Ofman multiplication algorithm.
- *
- */
-
/*----- Header files ------------------------------------------------------*/
#include <assert.h>
mpw *bsv = sv + m + 1, *ssv = bsv + m + 1;
mpw *rdv = dv + m, *rdvl = rdv + 2 * (m + 2);
- assert(rdvl < dvl);
- assert(ssv < svl);
+ assert(rdvl <= dvl);
+ assert(ssv <= svl);
UADD2(sv, bsv, av, avm, avm, avl);
UADD2(bsv, ssv, bv, bvm, bvm, bvl);
if (m > MPK_THRESH)
#include <mLib/alloc.h>
#include <mLib/testrig.h>
-#define ALLOC(v, vl, sz) do { \
- size_t _sz = (sz); \
- mpw *_vv = xmalloc(MPWS(_sz)); \
- mpw *_vvl = _vv + _sz; \
- (v) = _vv; \
- (vl) = _vvl; \
+#define ALLOC(v, vl, sz) do { \
+ size_t _sz = (sz); \
+ mpw *_vv = xmalloc(MPWS(_sz)); \
+ mpw *_vvl = _vv + _sz; \
+ (v) = _vv; \
+ (vl) = _vvl; \
} while (0)
-#define LOAD(v, vl, d) do { \
- const dstr *_d = (d); \
- mpw *_v, *_vl; \
- ALLOC(_v, _vl, MPW_RQ(_d->len)); \
- mpx_loadb(_v, _vl, _d->buf, _d->len); \
- (v) = _v; \
- (vl) = _vl; \
+#define LOAD(v, vl, d) do { \
+ const dstr *_d = (d); \
+ mpw *_v, *_vl; \
+ ALLOC(_v, _vl, MPW_RQ(_d->len)); \
+ mpx_loadb(_v, _vl, _d->buf, _d->len); \
+ (v) = _v; \
+ (vl) = _vl; \
} while (0)
#define MAX(x, y) ((x) > (y) ? (x) : (y))
mpx_kmul(d, dl, a, al, b, bl, s, sl);
if (!mpx_ueq(d, dl, c, cl)) {
fprintf(stderr, "\n*** umul failed\n");
- dumpmp(" a", a, al);
- dumpmp(" b", b, bl);
+ dumpmp(" a", a, al);
+ dumpmp(" b", b, bl);
dumpmp("expected", c, cl);
dumpmp(" result", d, dl);
ok = 0;
}
- free(a); free(b); free(c); free(d); free(s);
+ xfree(a); xfree(b); xfree(c); xfree(d); xfree(s);
return (ok);
}