1#include <linux/types.h>
2#include <linux/errno.h>
3#include <asm/uaccess.h>
4
5#include <asm/sfp-machine.h>
6#include <math-emu/soft-fp.h>
7#include <math-emu/double.h>
8#include <math-emu/single.h>
9
10int
11stfs(void *frS, void *ea)
12{
13	FP_DECL_D(A);
14	FP_DECL_S(R);
15	FP_DECL_EX;
16	float f;
17
18#ifdef DEBUG
19	printk("%s: S %p, ea %p\n", __func__, frS, ea);
20#endif
21
22	FP_UNPACK_DP(A, frS);
23
24#ifdef DEBUG
25	printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
26#endif
27
28	FP_CONV(S, D, 1, 2, R, A);
29
30#ifdef DEBUG
31	printk("R: %ld %lu %ld (%ld)\n", R_s, R_f, R_e, R_c);
32#endif
33
34	_FP_PACK_CANONICAL(S, 1, R);
35	if (!FP_CUR_EXCEPTIONS || !__FPU_TRAP_P(FP_CUR_EXCEPTIONS)) {
36		_FP_PACK_RAW_1_P(S, &f, R);
37		if (copy_to_user(ea, &f, sizeof(float)))
38			return -EFAULT;
39	}
40
41	return FP_CUR_EXCEPTIONS;
42}
43