1 | // SPDX-License-Identifier: GPL-2.0 |
2 | #include <linux/types.h> |
3 | #include <linux/errno.h> |
4 | #include <linux/uaccess.h> |
5 | |
6 | #include <asm/sfp-machine.h> |
7 | #include <math-emu/soft-fp.h> |
8 | #include <math-emu/double.h> |
9 | |
10 | int |
11 | fsel(u32 *frD, void *frA, u32 *frB, u32 *frC) |
12 | { |
13 | FP_DECL_D(A); |
14 | FP_DECL_EX; |
15 | |
16 | #ifdef DEBUG |
17 | printk("%s: %p %p %p %p\n" , __func__, frD, frA, frB, frC); |
18 | #endif |
19 | |
20 | FP_UNPACK_DP(A, frA); |
21 | |
22 | #ifdef DEBUG |
23 | printk("A: %ld %lu %lu %ld (%ld)\n" , A_s, A_f1, A_f0, A_e, A_c); |
24 | printk("B: %08x %08x\n" , frB[0], frB[1]); |
25 | printk("C: %08x %08x\n" , frC[0], frC[1]); |
26 | #endif |
27 | |
28 | if (A_c == FP_CLS_NAN || (A_c != FP_CLS_ZERO && A_s)) { |
29 | frD[0] = frB[0]; |
30 | frD[1] = frB[1]; |
31 | } else { |
32 | frD[0] = frC[0]; |
33 | frD[1] = frC[1]; |
34 | } |
35 | |
36 | #ifdef DEBUG |
37 | printk("D: %08x.%08x\n" , frD[0], frD[1]); |
38 | #endif |
39 | |
40 | return 0; |
41 | } |
42 | |