Orange Pi5 kernel

/* SPDX-License-Identifier: GPL-2.0 */
/*	
 * 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