i32 = (i24 ^ 0x00800000) + 0xFF800000;
i32 = (i24 ^ 0x01800000) + 0xFE800000;
i32 = (i24 ^ 0x02800000) + 0xFD800000;
i32 = (i24 ^ 0x03800000) + 0xFC800000;
...