Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

#include <linux/types.h>

#include <linux/errno.h>

#include <asm/uaccess.h>

#include "soft-fp.h"

int

mcrfs(u32 *ccr, u32 crfD, u32 crfS)

{

        u32 value, clear;

#ifdef DEBUG

        printk("%s: %p (%08x) %d %d\n", __FUNCTION__, ccr, *ccr, crfD, crfS);

#endif

        clear = 15 << ((7 - crfS) << 2);

        if (!crfS)

                clear = 0x90000000;

        value = (__FPU_FPSCR >> ((7 - crfS) << 2)) & 15;

        __FPU_FPSCR &= ~(clear);

        *ccr &= ~(15 << ((7 - crfD) << 2));

        *ccr |= (value << ((7 - crfD) << 2));

#ifdef DEBUG

        printk("CR: %08x\n", __FUNCTION__, *ccr);

#endif

        return 0;

}