/*
 * Copyright (c) Hisilicon Technologies Co., Ltd. 2020-2020. All rights reserved.
 * Description: printf function
 * Author: SmartMedia_BSP
 * Create: 2020-06-04
 */

#include <td_type.h>
#include <stdlib.h>

uint32_t div64_32(uint64_t *num, uint32_t div)
{
    uint64_t remainder;
    uint64_t d = div;
    uint64_t quotient = 0;
    uint64_t q = 1;
    uint32_t  high;

    if (num == NULL) {
        return 0;
    }
    remainder = *num;
    high = (*num) >> 32; /* shift 32 bit */

    if ((div != 0) && (high >= div)) {
        high /= div;
        quotient = (uint64_t)high << 32;  /* shift 32 bit */
        remainder -= (uint64_t)(high * div) << 32;  /* shift 32 bit */
    }

    while ((int64_t)d > 0 && d < remainder) {
        d = d + d;
        q = q + q;
    }

    do {
        if (remainder >= d) {
            remainder -= d;
            quotient += q;
        }
        d >>= 1;
        q >>= 1;
    } while (q);

    *num = quotient;
    return remainder;
}