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authorAndrew Ryabinin <ryabinin.a.a@gmail.com>2014-11-29 20:42:22 +0300
committerAndrew Ryabinin <ryabinin.a.a@gmail.com>2014-11-29 20:59:18 +0300
commitd1fcfe950a70ddbdd97164832cdb83ef2cc7f23a (patch)
tree23609f57eb348822a492e1d7e6c39f57b76c4111
parentd924c83066759792f8a7622ed8794a97ca98bf4b (diff)
downloadrockbox-d1fcfe9.tar.gz
rockbox-d1fcfe9.zip
Add IS_ALIGNED(x, a) macro helper
Change-Id: Ic5799e4bc03cabddece80cbc129b16f3a19ff9c5
-rw-r--r--firmware/export/system.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/firmware/export/system.h b/firmware/export/system.h
index 47dd858d81..e83ee53d96 100644
--- a/firmware/export/system.h
+++ b/firmware/export/system.h
@@ -134,6 +134,8 @@ int get_cpu_boost_counter(void);
(size) = __a2 > __a1 ? __a2 - __a1 : 0; \
})
+#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0)
+
#define PTR_ADD(ptr, x) ((typeof(ptr))((char*)(ptr) + (x)))
#define PTR_SUB(ptr, x) ((typeof(ptr))((char*)(ptr) - (x)))