static const uint8_t bitalloc_sizes[10] = { 3, 5, 7, 9, 13, 17, 25, 33, 65, 129 };
-static const uint8_t bitalloc_offsets[10] =
+static const int8_t bitalloc_offsets[10] =
{ -1, -2, -3, -4, -6, -8, -12, -16, -32, -64 };
static const uint8_t bitalloc_maxbits[10][7] = {