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 | fdivs(void *frD, void *frA, void *frB) | |
11 | { | |
12 | FP_DECL_D(A); | |
13 | FP_DECL_D(B); | |
14 | FP_DECL_D(R); | |
15 | int ret = 0; | |
16 | ||
17 | #ifdef DEBUG | |
e48b1b45 | 18 | printk("%s: %p %p %p\n", __func__, frD, frA, frB); |
1da177e4 LT |
19 | #endif |
20 | ||
21 | __FP_UNPACK_D(A, frA); | |
22 | __FP_UNPACK_D(B, frB); | |
23 | ||
24 | #ifdef DEBUG | |
25 | printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); | |
26 | printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c); | |
27 | #endif | |
28 | ||
29 | if (A_c == FP_CLS_ZERO && B_c == FP_CLS_ZERO) { | |
30 | ret |= EFLAG_VXZDZ; | |
31 | #ifdef DEBUG | |
e48b1b45 | 32 | printk("%s: FPSCR_VXZDZ raised\n", __func__); |
1da177e4 LT |
33 | #endif |
34 | } | |
35 | if (A_c == FP_CLS_INF && B_c == FP_CLS_INF) { | |
36 | ret |= EFLAG_VXIDI; | |
37 | #ifdef DEBUG | |
e48b1b45 | 38 | printk("%s: FPSCR_VXIDI raised\n", __func__); |
1da177e4 LT |
39 | #endif |
40 | } | |
41 | ||
42 | if (B_c == FP_CLS_ZERO && A_c != FP_CLS_ZERO) { | |
43 | ret |= EFLAG_DIVZERO; | |
44 | if (__FPU_TRAP_P(EFLAG_DIVZERO)) | |
45 | return ret; | |
46 | } | |
47 | ||
48 | FP_DIV_D(R, A, B); | |
49 | ||
50 | #ifdef DEBUG | |
51 | printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c); | |
52 | #endif | |
53 | ||
54 | return (ret | __FP_PACK_DS(frD, R)); | |
55 | } |