lfs.c (96916090f488986a4ebb8e9ffa6a3b50881d5ccd) lfs.c (d2b194ed820880eb19c43b9c10d9f5f30026ee54)
1#include <linux/types.h>
2#include <linux/errno.h>
3#include <asm/uaccess.h>
4
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"
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>
8
9int
10lfs(void *frD, void *ea)
11{
12 FP_DECL_D(R);
13 FP_DECL_S(A);
9
10int
11lfs(void *frD, void *ea)
12{
13 FP_DECL_D(R);
14 FP_DECL_S(A);
15 FP_DECL_EX;
14 float f;
15
16#ifdef DEBUG
17 printk("%s: D %p, ea %p\n", __func__, frD, ea);
18#endif
19
20 if (copy_from_user(&f, ea, sizeof(float)))
21 return -EFAULT;
22
16 float f;
17
18#ifdef DEBUG
19 printk("%s: D %p, ea %p\n", __func__, frD, ea);
20#endif
21
22 if (copy_from_user(&f, ea, sizeof(float)))
23 return -EFAULT;
24
23 __FP_UNPACK_S(A, &f);
25 FP_UNPACK_S(A, f);
24
25#ifdef DEBUG
26 printk("A: %ld %lu %ld (%ld) [%08lx]\n", A_s, A_f, A_e, A_c,
27 *(unsigned long *)&f);
28#endif
29
30 FP_CONV(D, S, 2, 1, R, A);
31
32#ifdef DEBUG
33 printk("R: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
34#endif
35
26
27#ifdef DEBUG
28 printk("A: %ld %lu %ld (%ld) [%08lx]\n", A_s, A_f, A_e, A_c,
29 *(unsigned long *)&f);
30#endif
31
32 FP_CONV(D, S, 2, 1, R, A);
33
34#ifdef DEBUG
35 printk("R: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
36#endif
37
36 return __FP_PACK_D(frD, R);
38 if (R_c == FP_CLS_NAN) {
39 R_e = _FP_EXPMAX_D;
40 _FP_PACK_RAW_2_P(D, frD, R);
41 } else {
42 __FP_PACK_D(frD, R);
43 }
44
45 return 0;
37}
46}