mtfsfi.c

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#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;
}