C语言内存 dump 函数

按照 beyond compare 形式输出内存数据，使用 HEX 方式。

代码如下：

#define __is_print(ch) ((unsigned int)((ch) - ' ') < 127u - ' ')
void dump_hex(const uint8_t *ptr, uint16_t buflen)
{
    unsigned char *buf = (unsigned char*)ptr;
    int i, j;

    for (i=0; i

测试代码：

int main(void)
{
    char buffer[128];
    memset(buffer, 0x41, sizeof(buffer));
    dump_hex(buffer, sizeof(buffer));
}

测试效果：

00000000: 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41  AAAAAAAAAAAAAAAA
00000010: 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41  AAAAAAAAAAAAAAAA
00000020: 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41  AAAAAAAAAAAAAAAA
00000030: 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41  AAAAAAAAAAAAAAAA
00000040: 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41  AAAAAAAAAAAAAAAA
00000050: 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41  AAAAAAAAAAAAAAAA
00000060: 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41  AAAAAAAAAAAAAAAA
00000070: 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41  AAAAAAAAAAAAAAAA