arch/sw_64/math-emu/sfp-util.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _SW64_MATH_EMU_SFP_UTIL_H
#define _SW64_MATH_EMU_SFP_UTIL_H

#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/types.h>
#include <asm/byteorder.h>
#include <asm/fpu.h>

#define add_ssaaaa(sh, sl, ah, al, bh, bl)			\
	((sl) = (al) + (bl), (sh) = (ah) + (bh) + ((sl) < (al)))

#define sub_ddmmss(sh, sl, ah, al, bh, bl)			\
	((sl) = (al) - (bl), (sh) = (ah) - (bh) - ((al) < (bl)))

#define umul_ppmm(wh, wl, u, v)					\
	__asm__ ("mull %2, %3, %1; umulh %2, %3, %0"		\
		: "=r" ((UDItype)(wh)),				\
		"=&r" ((UDItype)(wl))				\
		: "r" ((UDItype)(u)),				\
		"r" ((UDItype)(v)))

#define udiv_qrnnd(q, r, n1, n0, d)				\
do { unsigned long __r;						\
	(q) = __udiv_qrnnd(&__r, (n1), (n0), (d));		\
	(r) = __r;						\
} while (0)
extern unsigned long __udiv_qrnnd(unsigned long *, unsigned long,
		unsigned long, unsigned long);

#define UDIV_NEEDS_NORMALIZATION	1

#define abort()			goto bad_insn

#ifndef __LITTLE_ENDIAN
#define __LITTLE_ENDIAN -1
#endif
#define __BYTE_ORDER __LITTLE_ENDIAN

#endif /* _SW64_MATH_EMU_SFP_UTIL_H */