v3.7.10

algo/x11/x11evo-gate.c

@@ -0,0 +1,95 @@
+#include "x11evo-gate.h"
+
+int s_seq = -1;
+
+static inline int getCurrentAlgoSeq( uint32_t current_time )
+{
+   // change once per day
+   return (int) (current_time - X11EVO_INITIAL_DATE) / (60 * 60 * 24);
+}
+
+// swap_vars doesn't work here
+void evo_swap( uint8_t *a, uint8_t *b )
+{
+   uint8_t __tmp = *a;
+   *a = *b;
+   *b = __tmp;
+}
+
+void initPerm( uint8_t n[], uint8_t count )
+{
+   int i;
+   for ( i = 0; i<count; i++ )
+       n[i] = i;
+}
+
+int nextPerm( uint8_t n[], uint32_t count )
+{
+   uint32_t tail = 0, i = 0, j = 0;
+
+   if (unlikely( count <= 1 ))
+      return 0;
+
+   for ( i = count - 1; i>0 && n[i - 1] >= n[i]; i-- );
+      tail = i;
+
+   if ( tail > 0 )
+      for ( j = count - 1; j>tail && n[j] <= n[tail - 1]; j-- );
+           evo_swap( &n[tail - 1], &n[j] );
+
+   for ( i = tail, j = count - 1; i<j; i++, j-- )
+      evo_swap( &n[i], &n[j] );
+
+   return ( tail != 0 );
+}
+
+void getAlgoString( char *str, uint32_t count )
+{
+   uint8_t algoList[X11EVO_FUNC_COUNT];
+   char *sptr;
+   int j;
+   int k;
+   initPerm( algoList, X11EVO_FUNC_COUNT );
+
+   for ( k = 0; k < count; k++ )
+      nextPerm( algoList, X11EVO_FUNC_COUNT );
+
+   sptr = str;
+   for ( j = 0; j < X11EVO_FUNC_COUNT; j++ )
+   {
+      if ( algoList[j] >= 10 )
+          sprintf( sptr, "%c", 'A' + (algoList[j] - 10) );
+      else
+          sprintf( sptr, "%u", algoList[j] );
+      sptr++;
+   }
+  *sptr = 0;
+
+        //applog(LOG_DEBUG, "nextPerm %s", str);
+}
+
+void evo_twisted_code( uint32_t ntime, char *permstr )
+{
+   int seq = getCurrentAlgoSeq( ntime );
+   if ( s_seq != seq )
+   {
+       getAlgoString( permstr, seq );
+       s_seq = seq;
+   }
+}
+
+bool register_x11evo_algo( algo_gate_t* gate )
+{
+#if defined (X11EVO_4WAY)
+  init_x11evo_4way_ctx();
+  gate->scanhash  = (void*)&scanhash_x11evo_4way;
+  gate->hash      = (void*)&x11evo_4way_hash;
+#else
+  init_x11evo_ctx();
+  gate->scanhash  = (void*)&scanhash_x11evo;
+  gate->hash      = (void*)&x11evo_hash;
+#endif
+  gate->optimizations = SSE2_OPT | AES_OPT | AVX_OPT | AVX2_OPT | FOUR_WAY_OPT;
+  return true;
+};
+