New slide digits effect.

Src/board.c

@@ -130,6 +130,22 @@ void showDigits(tube4_t dig)
   } // End of if-else
 }
 
+void lShiftDigits(tube4_t dig) {
+  uint32_t * buf;
+  uint8_t sbuf[12] = {0xf};
+  sbuf[4] = dig.ar[0];
+  sbuf[5] = dig.ar[1];
+  sbuf[6] = dig.ar[2];
+  sbuf[7] = dig.ar[3];
+
+  int i;
+  for (i=0; i<9; i++) {
+    buf = (uint32_t *)&sbuf[i];
+    _show_digits(* buf);
+    tdelay_ms(100);
+  }
+}
+
 void slideDigits(tube4_t dig) {
   tube4_t buf;
   const uint8_t pause = 100;;