INT21_GetFreeDiskSpace fix

[Rein Klazes]

Hi,

This makes MSVC++-16bits install stop complaining about too little disk
space.

Changelog:
	dlls/winedos	: int21.c
	In INT21_GetFreeDiskSpace adjust the sectors-per-cluster value
	to make the total number of clusters fit in a 16 bit register.

Rein.
-- 
Rein Klazes
rklazes at xs4all.nl
-------------- next part --------------
--- wine/dlls/winedos/int21.c	2004-04-27 07:34:57.000000000 +0200
+++ mywine/dlls/winedos/int21.c	2004-06-03 17:39:28.000000000 +0200
@@ -3397,6 +3397,12 @@
     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 );