Merge branch 'master' of git://git.denx.de/u-boot-sh

1 files changed, 27 insertions, 0 deletions

diff --git a/arch/sh/lib/ashrdi3.c b/arch/sh/lib/ashrdi3.c
new file mode 100644
index 0000000000..f30359b73f
--- /dev/null
+++ b/arch/sh/lib/ashrdi3.c
@@ -0,0 +1,27 @@
+#include "libgcc.h"
+
+long long __ashrdi3(long long u, word_type b)
+{
+	DWunion uu, w;
+	word_type bm;
+
+	if (b == 0)
+		return u;
+
+	uu.ll = u;
+	bm = 32 - b;
+
+	if (bm <= 0) {
+		/* w.s.high = 1..1 or 0..0 */
+		w.s.high =
+		    uu.s.high >> 31;
+		w.s.low = uu.s.high >> -bm;
+	} else {
+		const unsigned int carries = (unsigned int) uu.s.high << bm;
+
+		w.s.high = uu.s.high >> b;
+		w.s.low = ((unsigned int) uu.s.low >> b) | carries;
+	}
+
+	return w.ll;
+}