1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/types.h>
3 #include <linux/errno.h>
4 #include <linux/uaccess.h>
5
6 #include <asm/sfp-machine.h>
7 #include <math-emu/soft-fp.h>
8 #include <math-emu/double.h>
9 #include <math-emu/single.h>
10
11 int
12 fsqrts(void *frD, void *frB)
13 {
14 FP_DECL_D(B);
15 FP_DECL_D(R);
16 FP_DECL_EX;
17
18 #ifdef DEBUG
19 printk("%s: %p %p %p %p\n", __func__, frD, frB);
20 #endif
21
22 FP_UNPACK_DP(B, frB);
23
24 #ifdef DEBUG
25 printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
26 #endif
27
28 if (B_s && B_c != FP_CLS_ZERO)
29 FP_SET_EXCEPTION(EFLAG_VXSQRT);
30 if (B_c == FP_CLS_NAN)
31 FP_SET_EXCEPTION(EFLAG_VXSNAN);
32
33 FP_SQRT_D(R, B);
34
35 #ifdef DEBUG
36 printk("R: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
37 #endif
38
39 __FP_PACK_DS(frD, R);
40
41 return FP_CUR_EXCEPTIONS;
42 }
43
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