blob: e36e6e72819a47ca7078b350d23afe865e9d3fe8 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#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
8int
9fsel(u32 *frD, void *frA, u32 *frB, u32 *frC)
10{
11 FP_DECL_D(A);
12
13#ifdef DEBUG
14 printk("%s: %p %p %p %p\n", __FUNCTION__, frD, frA, frB, frC);
15#endif
16
17 __FP_UNPACK_D(A, frA);
18
19#ifdef DEBUG
20 printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
21 printk("B: %08x %08x\n", frB[0], frB[1]);
22 printk("C: %08x %08x\n", frC[0], frC[1]);
23#endif
24
25 if (A_c == FP_CLS_NAN || (A_c != FP_CLS_ZERO && A_s)) {
26 frD[0] = frB[0];
27 frD[1] = frB[1];
28 } else {
29 frD[0] = frC[0];
30 frD[1] = frC[1];
31 }
32
33#ifdef DEBUG
34 printk("D: %08x.%08x\n", frD[0], frD[1]);
35#endif
36
37 return 0;
38}