forked from Minki/linux
39 lines
654 B
C
39 lines
654 B
C
|
#include <linux/types.h>
|
||
|
|
#include <linux/errno.h>
|
||
|
|
#include <asm/uaccess.h>
|
||
|
|
|
||
|
|
#include "soft-fp.h"
|
||
|
|
#include "double.h"
|
||
|
|
#include "single.h"
|
||
|
|
|
||
|
|
int
|
||
|
|
fsqrts(void *frD, void *frB)
|
||
|
|
{
|
||
|
|
FP_DECL_D(B);
|
||
|
|
FP_DECL_D(R);
|
||
|
|
int ret = 0;
|
||
|
|
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("%s: %p %p %p %p\n", __FUNCTION__, frD, frB);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
__FP_UNPACK_D(B, frB);
|
||
|
|
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
if (B_s && B_c != FP_CLS_ZERO)
|
||
|
|
ret |= EFLAG_VXSQRT;
|
||
|
|
if (B_c == FP_CLS_NAN)
|
||
|
|
ret |= EFLAG_VXSNAN;
|
||
|
|
|
||
|
|
FP_SQRT_D(R, B);
|
||
|
|
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("R: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
return (ret | __FP_PACK_DS(frD, R));
|
||
|
|
}
|