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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/sh/lib/div64-generic.c
Initial import
Diffstat (limited to 'arch/sh/lib/div64-generic.c')
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1 files changed, 19 insertions, 0 deletions
diff --git a/arch/sh/lib/div64-generic.c b/arch/sh/lib/div64-generic.c
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+++ b/arch/sh/lib/div64-generic.c
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+/*
+ * Generic __div64_32 wrapper for __xdiv64_32.
+ */
+
+#include <linux/types.h>
+#include <asm/div64.h>
+
+extern uint64_t __xdiv64_32(u64 n, u32 d);
+
+uint32_t __div64_32(u64 *xp, u32 y)
+{
+ uint32_t rem;
+ uint64_t q = __xdiv64_32(*xp, y);
+
+ rem = *xp - q * y;
+ *xp = q;
+
+ return rem;
+}