int h = 8;
int pix_abs8x8_mvi(uint8_t *pix1, uint8_t *pix2, int line_size){    int result = 0;    int h = 8;    if ((size_t) pix2 & 0x7) {        /* works only when pix2 is actually unaligned */        do {                    /* do 8 pixel a time */            uint64_t p1, p2;            p1  = ldq(pix1);            p2  = uldq(pix2);            result += perr(p1, p2);            pix1 += line_size;            pix2 += line_size;        } while (--h);    } else {        do {            uint64_t p1, p2;            p1 = ldq(pix1);            p2 = ldq(pix2);            result += perr(p1, p2);            pix1 += line_size;            pix2 += line_size;        } while (--h);    }    return result;}