[deliverable/linux.git] / arch / powerpc / math-emu / mtfsfi.c

#include <linux/types.h>
#include <linux/errno.h>
#include <asm/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;
}
Commit	Line	Data
1da177e4 LT	1	#include <linux/types.h>
	2	#include <linux/errno.h>
	3	#include <asm/uaccess.h>
	4
d2b194ed KG	5	#include <asm/sfp-machine.h>
d2b194ed KG	6	#include <math-emu/soft-fp.h>
1da177e4 LT	7
	8	int
	9	mtfsfi(unsigned int crfD, unsigned int IMM)
	10	{
	11	u32 mask = 0xf;
	12
	13	if (!crfD)
	14	mask = 9;
	15
	16	__FPU_FPSCR &= ~(mask << ((7 - crfD) << 2));
	17	__FPU_FPSCR \|= (IMM & 0xf) << ((7 - crfD) << 2);
	18
	19	#ifdef DEBUG
e48b1b45	20	printk("%s: %d %x: %08lx\n", __func__, crfD, IMM, __FPU_FPSCR);
1da177e4 LT	21	#endif
	22
	23	return 0;
	24	}