WORD save_icn(VOID)
{
LONG daddr, maddr;
WORD ret;
save_fat(FALSE);
rast_op(3,&hold_area, &hold_mfdb, &hold_area, &save_mfdb);
if(gl_isicon)
rast_op(3, &hold_area, &hld2_mfdb, &hold_area, &sav2_mfdb);
daddr = GET_SPEC(ad_pbx, DATAWIND);
if (gl_isicon)
{
/* write data and mask */
maddr = GET_SPEC(ad_pbx, MASKWIND);
ret = writ_icon(LLGET(BI_PDATA(daddr)),
gl_wimage, gl_himage, gl_datasize,
TRUE) ;
if (ret )
return( writ_icon(LLGET(BI_PDATA(maddr)),
gl_wimage, gl_himage, gl_datasize,
FALSE) );
else
return( ret );
}
else
/* write data only */
return( writ_icon(LLGET(BI_PDATA(daddr)),
gl_wimage, gl_himage, gl_datasize,
TRUE) );
}
void format(uint16_t sector_sz, uint16_t cluster_sz, uint16_t disk_sz) {
cluster_sz_bytes = cluster_sz * sector_sz;
extended_mbr = (uint8_t *)malloc(cluster_sz_bytes);
bzero(extended_mbr, cluster_sz_bytes);
mbr = (mbr_t *) (&extended_mbr[0]);
mbr->sector_sz = sector_sz;
mbr->cluster_sz = cluster_sz;
mbr->disk_sz = disk_sz;
mbr->fat_start = 1;
double fat_length = disk_sz * sizeof(uint16_t) / ((double) cluster_sz * sector_sz);
fat_length = ceil(fat_length);
mbr->fat_len = fat_length;
mbr->data_start = fat_length + 1;
strcpy(mbr->disk_name, "no name");
printf("fat start=%d len=%d\n", mbr->fat_start, mbr->fat_len);
//save the mbr to disk
write_full((uint8_t *) &extended_mbr[0], cluster_sz_bytes, file);
// allocate the fat
fat = (uint16_t *) malloc(mbr->fat_len * cluster_sz_bytes);
alloc_entries = disk_sz;
total_entries = mbr->fat_len * cluster_sz_bytes / sizeof(uint16_t);
printf("fat alloc=%d total=%d\n", alloc_entries, total_entries);
for (int i = 0; i < alloc_entries; i++) {
fat[i] = FAT_FREE;
}
for (int i = alloc_entries + 1; i < total_entries; i++) {
fat[i] = FAT_UNALLOC;
}
fat_size = mbr->fat_len * cluster_sz_bytes;
// fat_size = total_entries * sizeof(uint16_t);
save_fat();
}
