popc8
count += popc8(bitmap[i]);
bits_set += popc8(bitmap[i]);
if (popc8((uint8_t)page->vlp_isr[i]) > 1 ||
popc8((uint8_t)(page->vlp_isr[i] >> 8)) > 1 ||
popc8((uint8_t)(page->vlp_isr[i] >> 16)) > 1 ||
popc8((uint8_t)(page->vlp_isr[i] >> 24)) > 1) {