From b119552640180d2c9c2db3d55dd5bf1c29ff4cca Mon Sep 17 00:00:00 2001
From: mdw <mdw>
Date: Sun, 8 Oct 2000 15:47:47 +0000
Subject: [PATCH] Rename from `mpx-kmac.h', and add macros for @gfx_kmul@.

---
 karatsuba.h | 36 ++++++++++++++++++++++++++++++++----
 1 file changed, 32 insertions(+), 4 deletions(-)

diff --git a/karatsuba.h b/karatsuba.h
index 885d907..4add2c1 100644
--- a/karatsuba.h
+++ b/karatsuba.h
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: karatsuba.h,v 1.1 2000/06/17 11:42:11 mdw Exp $
+ * $Id: karatsuba.h,v 1.2 2000/10/08 15:47:47 mdw Exp $
  *
  * Macros for Karatsuba functions
  *
@@ -30,14 +30,17 @@
 /*----- Revision history --------------------------------------------------* 
  *
  * $Log: karatsuba.h,v $
+ * Revision 1.2  2000/10/08 15:47:47  mdw
+ * Rename from `mpx-kmac.h', and add macros for @gfx_kmul@.
+ *
  * Revision 1.1  2000/06/17 11:42:11  mdw
  * Moved the Karatsuba macros into a separate file for better sharing.
  * Fixed some comments.
  *
  */
 
-#ifndef CATACOMB_MPX_KMAC_H
-#define CATACOMB_MPX_KMAC_H
+#ifndef CATACOMB_KARATSUBA_H
+#define CATACOMB_KARATSUBA_H
 
 #ifdef __cplusplus
   extern "C" {
@@ -49,7 +52,7 @@
 #  include "mpw.h"
 #endif
 
-/*----- Macros provided ---------------------------------------------------*/
+/*----- Normal arithmetic macros ------------------------------------------*/
 
 #define UADD(dv, av, avl) do {						\
   mpw *_dv = (dv);							\
@@ -119,6 +122,31 @@
   }									\
 } while (0)
 
+/*----- Binary polynomial arithmetic macros -------------------------------*/
+
+#define UXOR(dv, av, avl) do {						\
+  mpw *_dv = (dv);							\
+  const mpw *_av = (av), *_avl = (avl);					\
+									\
+  while (_av < _avl)							\
+    *_dv++ ^= *_av++;							\
+} while (0)
+
+#define UXOR2(dv, dvl, av, avl, bv, bvl) do {				\
+  mpw *_dv = (dv), *_dvl = (dvl);					\
+  const mpw *_av = (av), *_avl = (avl);					\
+  const mpw *_bv = (bv), *_bvl = (bvl);					\
+									\
+  while (_av < _avl || _bv < _bvl) {					\
+    mpw _a, _b;								\
+    _a = (_av < _avl) ? *_av++ : 0;					\
+    _b = (_bv < _bvl) ? *_bv++ : 0;					\
+    *_dv++ = _a ^ _b;							\
+  }									\
+  while (_dv < _dvl)							\
+    *_dv++ = 0;								\
+} while (0)
+
 /*----- That's all, folks -------------------------------------------------*/
 
 #ifdef __cplusplus
-- 
2.11.0