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v0.5.1
https://github.com/torvalds/linux
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Tip revision: 247f34f7b80357943234f93f247a1ae6b6c3a740 authored by Linus Torvalds on 23 October 2022, 22:27:33 UTC
Linux 6.1-rc2
Tip revision: 247f34f
mtfsfi.c
// 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>

int
mtfsfi(unsigned int crfD, unsigned int IMM)
{
	u32 mask = 0xf;

	if (!crfD)
		mask = 9;

	__FPU_FPSCR &= ~(mask << ((7 - crfD) << 2));
	__FPU_FPSCR |= (IMM & 0xf) << ((7 - crfD) << 2);

#ifdef DEBUG
	printk("%s: %d %x: %08lx\n", __func__, crfD, IMM, __FPU_FPSCR);
#endif

	return 0;
}
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