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
8 int
fadd(void * frD,void * frA,void * frB)9 fadd(void *frD, void *frA, void *frB)
10 {
11 FP_DECL_D(A);
12 FP_DECL_D(B);
13 FP_DECL_D(R);
14 int ret = 0;
15
16 #ifdef DEBUG
17 printk("%s: %p %p %p\n", __FUNCTION__, frD, frA, frB);
18 #endif
19
20 __FP_UNPACK_D(A, frA);
21 __FP_UNPACK_D(B, frB);
22
23 #ifdef DEBUG
24 printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
25 printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
26 #endif
27
28 if (A_s != B_s && A_c == FP_CLS_INF && B_c == FP_CLS_INF)
29 ret |= EFLAG_VXISI;
30
31 FP_ADD_D(R, A, B);
32
33 #ifdef DEBUG
34 printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
35 #endif
36
37 return (ret | __FP_PACK_D(frD, R));
38 }
39