[linux-2.6-block.git] / arch / sh / lib / lshrdi3.c

// SPDX-License-Identifier: GPL-2.0
#include <linux/module.h>

#include "libgcc.h"

long long __lshrdi3(long long u, word_type b)
{
	DWunion uu, w;
	word_type bm;

	if (b == 0)
		return u;

	uu.ll = u;
	bm = 32 - b;

	if (bm <= 0) {
		w.s.high = 0;
		w.s.low = (unsigned int) uu.s.high >> -bm;
	} else {
		const unsigned int carries = (unsigned int) uu.s.high << bm;

		w.s.high = (unsigned int) uu.s.high >> b;
		w.s.low = ((unsigned int) uu.s.low >> b) | carries;
	}

	return w.ll;
}

EXPORT_SYMBOL(__lshrdi3);
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
1aad54a9 PM	2	#include <linux/module.h>
	3
	4	#include "libgcc.h"
	5
	6	long long __lshrdi3(long long u, word_type b)
	7	{
	8	DWunion uu, w;
	9	word_type bm;
	10
	11	if (b == 0)
	12	return u;
	13
	14	uu.ll = u;
	15	bm = 32 - b;
	16
	17	if (bm <= 0) {
	18	w.s.high = 0;
	19	w.s.low = (unsigned int) uu.s.high >> -bm;
	20	} else {
	21	const unsigned int carries = (unsigned int) uu.s.high << bm;
	22
	23	w.s.high = (unsigned int) uu.s.high >> b;
	24	w.s.low = ((unsigned int) uu.s.low >> b) \| carries;
	25	}
	26
	27	return w.ll;
	28	}
	29
	30	EXPORT_SYMBOL(__lshrdi3);