From: Peter Crosthwaite <peter.crosthwa...@xilinx.com>
Little macro that just gives you N ones (justified to LSB).
Signed-off-by: Peter Crosthwaite <peter.crosthwa...@xilinx.com>
---
include/qemu/bitops.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/qemu/bitops.h b/include/qemu/bitops.h
index affcc96..da47fc8 100644
--- a/include/qemu/bitops.h
+++ b/include/qemu/bitops.h
@@ -273,4 +273,6 @@ static inline uint64_t deposit64(uint64_t value, int start,
int length,
return (value & ~mask) | ((fieldval << start) & mask);
}
+#define ONES(num) ((num) == 64 ? ~0ull : (1ull << (num)) - 1)
+
#endif
--
1.8.3.rc1.44.gb387c77.dirty
