ROUND_DOWN        306 nt/preprep.c   #define ROUND_DOWN(p, align) ((DWORD_PTR)(p) & ~((DWORD_PTR)(align)-1))
ROUND_DOWN         27 src/w32common.h #define ROUND_DOWN(p, align) ((DWORD_PTR)(p) & ~((DWORD_PTR)(align)-1))