patch-2.4.19 linux-2.4.19/include/asm-mips64/div64.h

• Lines: 46
• Date: Fri Aug 2 17:39:45 2002
• Orig file: linux-2.4.18/include/asm-mips64/div64.h
• Orig date: Sun Sep 9 10:43:02 2001

diff -urN linux-2.4.18/include/asm-mips64/div64.h linux-2.4.19/include/asm-mips64/div64.h
@@ -7,6 +7,45 @@
 #define _ASM_DIV64_H
 
 /*
+ * Don't use this one in new code
+ */
+#define do_div64_32(res, high, low, base) ({ \
+	unsigned long __quot, __mod; \
+	unsigned long __cf, __tmp, __tmp2, __i; \
+	\
+	__asm__(".set	push\n\t" \
+		".set	noat\n\t" \
+		".set	noreorder\n\t" \
+		"move	%2, $0\n\t" \
+		"move	%3, $0\n\t" \
+		"b	1f\n\t" \
+		" li	%4, 0x21\n" \
+		"0:\n\t" \
+		"sll	$1, %0, 0x1\n\t" \
+		"srl	%3, %0, 0x1f\n\t" \
+		"or	%0, $1, %5\n\t" \
+		"sll	%1, %1, 0x1\n\t" \
+		"sll	%2, %2, 0x1\n" \
+		"1:\n\t" \
+		"bnez	%3, 2f\n\t" \
+		"sltu	%5, %0, %z6\n\t" \
+		"bnez	%5, 3f\n\t" \
+		"2:\n\t" \
+		" addiu	%4,%4,-1\n\t" \
+		"subu	%0, %0, %z6\n\t" \
+		"addiu	%2, %2, 1\n" \
+		"3:\n\t" \
+		"bnez	%4, 0b\n\t" \
+		" srl	%5, %1, 0x1f\n\t" \
+		".set	pop" \
+		: "=&r" (__mod), "=&r" (__tmp), "=&r" (__quot), "=&r" (__cf), \
+		  "=&r" (__i), "=&r" (__tmp2) \
+		: "Jr" (base), "0" (high), "1" (low)); \
+	\
+	(res) = __quot; \
+	__mod; })
+
+/*
  * Hey, we're already 64-bit, no
  * need to play games..
  */