swh:1:snp:c3bf2749e3476071fa748f67b0ffa2fdc5fe49d9
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Tip revision: 1860e379875dfe7271c649058aeddffe5afd9d0d authored by Linus Torvalds on 08 June 2014, 18:19:54 UTC
Linux 3.15
Tip revision: 1860e37
div64.S
/*	
 * unsigned long __xdiv64_32(unsigned long long n, unsigned long d); 
 */

#include <linux/linkage.h>

.text
ENTRY(__xdiv64_32)
#ifdef CONFIG_CPU_LITTLE_ENDIAN
	mov	r4, r0
	mov	r5, r1
#else
	mov	r4, r1
	mov	r5, r0
#endif
	cmp/hs	r6, r1
	bf.s	1f
	 mov	#0, r2

	mov	r1, r2
	mov	#0, r3
	div0u
	.rept	32
	rotcl	r2
	div1	r6, r3
	.endr
	rotcl	r2
	mul.l	r6, r2
	sts	macl, r3
	sub	r3, r1
1:
	div0u
	.rept	32
	rotcl	r0
	div1	r6, r1
	.endr
#ifdef CONFIG_CPU_LITTLE_ENDIAN
	mov	r2, r1
	rts
	 rotcl	r0
#else
	rotcl	r0
	mov	r0, r1
	rts
	 mov	r2, r0
#endif
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