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Commit | Line | Data |
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1da177e4 LT |
1 | #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 | ||
9 | int | |
10 | stfs(void *frS, void *ea) | |
11 | { | |
12 | FP_DECL_D(A); | |
13 | FP_DECL_S(R); | |
14 | float f; | |
15 | int err; | |
16 | ||
17 | #ifdef DEBUG | |
18 | printk("%s: S %p, ea %p\n", __FUNCTION__, frS, ea); | |
19 | #endif | |
20 | ||
21 | __FP_UNPACK_D(A, frS); | |
22 | ||
23 | #ifdef DEBUG | |
24 | printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); | |
25 | #endif | |
26 | ||
27 | FP_CONV(S, D, 1, 2, R, A); | |
28 | ||
29 | #ifdef DEBUG | |
30 | printk("R: %ld %lu %ld (%ld)\n", R_s, R_f, R_e, R_c); | |
31 | #endif | |
32 | ||
33 | err = _FP_PACK_CANONICAL(S, 1, R); | |
34 | if (!err || !__FPU_TRAP_P(err)) { | |
35 | __FP_PACK_RAW_1(S, &f, R); | |
36 | if (copy_to_user(ea, &f, sizeof(float))) | |
37 | return -EFAULT; | |
38 | } | |
39 | ||
40 | return err; | |
41 | } |