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
10 int
fdivs(void * frD,void * frA,void * frB)11 fdivs(void *frD, void *frA, void *frB)
12 {
13 FP_DECL_D(A);
14 FP_DECL_D(B);
15 FP_DECL_D(R);
16 FP_DECL_EX;
17
18 #ifdef DEBUG
19 printk("%s: %p %p %p\n", __func__, frD, frA, frB);
20 #endif
21
22 FP_UNPACK_DP(A, frA);
23 FP_UNPACK_DP(B, frB);
24
25 #ifdef DEBUG
26 printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
27 printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
28 #endif
29
30 if (A_c == FP_CLS_ZERO && B_c == FP_CLS_ZERO) {
31 FP_SET_EXCEPTION(EFLAG_VXZDZ);
32 #ifdef DEBUG
33 printk("%s: FPSCR_VXZDZ raised\n", __func__);
34 #endif
35 }
36 if (A_c == FP_CLS_INF && B_c == FP_CLS_INF) {
37 FP_SET_EXCEPTION(EFLAG_VXIDI);
38 #ifdef DEBUG
39 printk("%s: FPSCR_VXIDI raised\n", __func__);
40 #endif
41 }
42
43 if (B_c == FP_CLS_ZERO && A_c != FP_CLS_ZERO) {
44 FP_SET_EXCEPTION(EFLAG_DIVZERO);
45 if (__FPU_TRAP_P(EFLAG_DIVZERO))
46 return FP_CUR_EXCEPTIONS;
47 }
48
49 FP_DIV_D(R, A, B);
50
51 #ifdef DEBUG
52 printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
53 #endif
54
55 __FP_PACK_DS(frD, R);
56
57 return FP_CUR_EXCEPTIONS;
58 }
59