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In INT21_GetFreeDiskSpace adjust the sectors-per-cluster value to make 

the total number of clusters fit in a 16 bit register.
This commit is contained in:
Rein Klazes 2004-06-03 23:20:35 +00:00 committed by Alexandre Julliard
parent f32a105376
commit a1e8ba9fc2
1 changed files with 6 additions and 0 deletions
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6
dlls/winedos/int21.c
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@ -3397,6 +3397,12 @@ static int INT21_GetFreeDiskSpace( CONTEXT86 *context )
root[0] += INT21_MapDrive(DL_reg(context));
if (!GetDiskFreeSpaceW( root, &cluster_sectors, &sector_bytes,
&free_clusters, &total_clusters )) return 0;
/* make sure that the number of clusters fits in a 16 bits value */
while( total_clusters & 0xffff0000) {
cluster_sectors <<= 1;
free_clusters >>= 1;
total_clusters >>= 1;
}
SET_AX( context, cluster_sectors );
SET_BX( context, free_clusters );
SET_CX( context, sector_bytes );