Cregit: Linux 5.16: fctiwz.c

Contributors: 4
Author	Tokens	Token Proportion	Commits	Commit Proportion
Linus Torvalds	109	91.60%	2	40.00%
Kumar Gala	8	6.72%	1	20.00%
Greg Kroah-Hartman	1	0.84%	1	20.00%
Harvey Harrison	1	0.84%	1	20.00%
Total	119		5

// SPDX-License-Identifier: GPL-2.0
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/uaccess.h>

#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>

int
fctiwz(u32 *frD, void *frB)
{
	FP_DECL_D(B);
	FP_DECL_EX;
	u32 fpscr;
	unsigned int r;

	fpscr = __FPU_FPSCR;
	__FPU_FPSCR &= ~(3);
	__FPU_FPSCR |= FP_RND_ZERO;

	FP_UNPACK_DP(B, frB);
	FP_TO_INT_D(r, B, 32, 1);
	frD[1] = r;

	__FPU_FPSCR = fpscr;

#ifdef DEBUG
	printk("%s: D %p, B %p: ", __func__, frD, frB);
	dump_double(frD);
	printk("\n");
#endif

	return 0;
}