patch-2.3.41 linux/include/asm-m68k/div64.h

• Lines: 36
• Date: Wed Jan 26 12:44:21 2000
• Orig file: v2.3.40/linux/include/asm-m68k/div64.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.40/linux/include/asm-m68k/div64.h linux/include/asm-m68k/div64.h
@@ -0,0 +1,35 @@
+#ifndef _M68K_DIV64_H
+#define _M68K_DIV64_H
+
+/* n = n / base; return rem; */
+
+#if 1
+#define do_div(n, base) ({					\
+	union {							\
+		unsigned long n32[2];				\
+		unsigned long long n64;				\
+	} __n;							\
+	unsigned long __rem, __upper;				\
+								\
+	__n.n64 = (n);						\
+	if ((__upper = __n.n32[0])) {				\
+		asm ("divul.l %2,%1:%0"				\
+			: "=d" (__n.n32[0]), "=d" (__upper)	\
+			: "d" (base), "0" (__n.n32[0]));	\
+	}							\
+	asm ("divu.l %2,%1:%0"					\
+		: "=d" (__n.n32[1]), "=d" (__rem)		\
+		: "d" (base), "1" (__upper), "0" (__n.n32[1]));	\
+	(n) = __n.n64;						\
+	__rem;							\
+})
+#else
+#define do_div(n,base) ({					\
+	int __res;						\
+	__res = ((unsigned long) n) % (unsigned) base;		\
+	n = ((unsigned long) n) / (unsigned) base;		\
+	__res;							\
+})
+#endif
+
+#endif /* _M68K_DIV64_H */