#include <linux/types.h> | |
#include <linux/errno.h> | |
#include <asm/uaccess.h> | |
#include "soft-fp.h" | |
#include "double.h" | |
int | |
fsqrt(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_D(frD, R)); | |
} |