test a VMU file

[JMD]

Hi,

I'm searching for a way to test a VMU file without load it.

Here is my pbm : I load a VMU file and want, when I save it again, be sure that the one I replace is the one I loaded.
Don't want replace another one if i changed the VMU for exemple.

Do you know how can I do that ?

Thanks.

JMD

[JMD]

Ok, find a way : I load the header and check the CRC.

I do like this :

Code: Select all

   #include <dc/fs_vmu.h>

    // open file
    file_t   fd=fs_open("/vmu/a1/myfile",O_RDONLY);
    // read header and cast as a file header
    uint8            data[128];
    fs_read(fd,&data,128);
    vmu_hdr_t *hdr = (vmu_hdr_t *)&data;;
     // read CRC
    uint16   int_crc = hdr->crc;
    printf("CRC = %i\n", int_crc);
    
    // close file
    fs_close(fd);