STAMP_SHIFT        71 dev/rasops/rasops15.c #define STAMP_SHIFT(fb,n)	((n*4-3) >= 0 ? (fb)>>(n*4-3):(fb)<<-(n*4-3))
STAMP_SHIFT        76 dev/rasops/rasops24.c #define STAMP_SHIFT(fb,n)	((n*4-4) >= 0 ? (fb)>>(n*4-4):(fb)<<-(n*4-4))
STAMP_SHIFT        70 dev/rasops/rasops8.c #define STAMP_SHIFT(fb,n)	((n*4-2) >= 0 ? (fb)>>(n*4-2):(fb)<<-(n*4-2))