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 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/include/qemu/bitops.h b/include/qemu/bitops.h
index 8164225..27bf98d 100644
--- a/include/qemu/bitops.h
+++ b/include/qemu/bitops.h
@@ -430,4 +430,6 @@ 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
--
1.7.1
