From: Philippe Mathieu-Daudé <f4...@amsat.org>
We already have the const_le() macros for little endian.
Implement the big-endian equivalent.
Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org>
---
include/qemu/bswap.h | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/include/qemu/bswap.h b/include/qemu/bswap.h
index c3b4277342b..6885984e00c 100644
--- a/include/qemu/bswap.h
+++ b/include/qemu/bswap.h
@@ -83,7 +83,7 @@ static inline void bswap64s(uint64_t *s)
#endif
/*
- * Same as cpu_to_le{16,32} described below, except that gcc will
+ * Same as cpu_to_{be,le}{16,32} described below, except that gcc will
* figure the result is a compile-time constant if you pass in a constant.
* So this can be used to initialize static variables.
*/
@@ -96,11 +96,20 @@ static inline void bswap64s(uint64_t *s)
# define const_le16(_x) \
((((_x) & 0x00ff) << 8) | \
(((_x) & 0xff00) >> 8))
+# define const_be32(_x) (_x)
+# define const_be16(_x) (_x)
#else
# define const_le32(_x) (_x)
# define const_le16(_x) (_x)
+# define const_be32(_x) \
+ ((((_x) & 0x000000ffU) << 24) | \
+ (((_x) & 0x0000ff00U) << 8) | \
+ (((_x) & 0x00ff0000U) >> 8) | \
+ (((_x) & 0xff000000U) >> 24))
+# define const_be16(_x) \
+ ((((_x) & 0x00ff) << 8) | \
+ (((_x) & 0xff00) >> 8))
#endif
-
/**
* Endianness conversion functions between host cpu and specified endianness.
* (We list the complete set of prototypes produced by the macros below
--
2.26.2
