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<buflen; i+=16)
{
printf("%08X: ", i);
for (j=0; j<16; j++)
if (i+j < buflen)
printf("%02X ", buf[i+j]);
else
printf(" ");
printf(" ");
for (j=0; j<16; j++)
if (i+j < buflen)
printf("%c", __is_print(buf[i+j]) ? buf[i+j] : '.');
printf("\n");
}
}
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