blob: 335263e06ee54d56cbe2cd7d296e9a9695cff846 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#include <linux/types.h>
2#include <linux/errno.h>
3#include <asm/uaccess.h>
4
5#include "soft-fp.h"
6#include "double.h"
7#include "single.h"
8
9int
10fsqrts(void *frD, void *frB)
11{
12 FP_DECL_D(B);
13 FP_DECL_D(R);
14 int ret = 0;
15
16#ifdef DEBUG
Harvey Harrisone48b1b42008-03-29 08:21:07 +110017 printk("%s: %p %p %p %p\n", __func__, frD, frB);
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#endif
19
20 __FP_UNPACK_D(B, frB);
21
22#ifdef DEBUG
23 printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
24#endif
25
26 if (B_s && B_c != FP_CLS_ZERO)
27 ret |= EFLAG_VXSQRT;
28 if (B_c == FP_CLS_NAN)
29 ret |= EFLAG_VXSNAN;
30
31 FP_SQRT_D(R, B);
32
33#ifdef DEBUG
34 printk("R: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
35#endif
36
37 return (ret | __FP_PACK_DS(frD, R));
38}