tst_bitmaps 1.0. Type '?' for a list of commands.
+tst_bitmaps: setb 12 0
+Marking blocks 12 to 11
tst_bitmaps: setb 12
Setting block 12, was clear before
tst_bitmaps: setb 12
Clearing block 15, was set before
tst_bitmaps: testb 12 7
Blocks 12 to 18 are all clear.
+tst_bitmaps: setb 12 0
+Marking blocks 12 to 11
tst_bitmaps: setb 12 7
Marking blocks 12 to 18
tst_bitmaps: dump_bb