1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun #include <linux/types.h>
3*4882a593Smuzhiyun #include <linux/errno.h>
4*4882a593Smuzhiyun #include <linux/uaccess.h>
5*4882a593Smuzhiyun
6*4882a593Smuzhiyun #include <asm/sfp-machine.h>
7*4882a593Smuzhiyun #include <math-emu/soft-fp.h>
8*4882a593Smuzhiyun #include <math-emu/double.h>
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun int
fsel(u32 * frD,void * frA,u32 * frB,u32 * frC)11*4882a593Smuzhiyun fsel(u32 *frD, void *frA, u32 *frB, u32 *frC)
12*4882a593Smuzhiyun {
13*4882a593Smuzhiyun FP_DECL_D(A);
14*4882a593Smuzhiyun FP_DECL_EX;
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun #ifdef DEBUG
17*4882a593Smuzhiyun printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC);
18*4882a593Smuzhiyun #endif
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun FP_UNPACK_DP(A, frA);
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun #ifdef DEBUG
23*4882a593Smuzhiyun printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
24*4882a593Smuzhiyun printk("B: %08x %08x\n", frB[0], frB[1]);
25*4882a593Smuzhiyun printk("C: %08x %08x\n", frC[0], frC[1]);
26*4882a593Smuzhiyun #endif
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun if (A_c == FP_CLS_NAN || (A_c != FP_CLS_ZERO && A_s)) {
29*4882a593Smuzhiyun frD[0] = frB[0];
30*4882a593Smuzhiyun frD[1] = frB[1];
31*4882a593Smuzhiyun } else {
32*4882a593Smuzhiyun frD[0] = frC[0];
33*4882a593Smuzhiyun frD[1] = frC[1];
34*4882a593Smuzhiyun }
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun #ifdef DEBUG
37*4882a593Smuzhiyun printk("D: %08x.%08x\n", frD[0], frD[1]);
38*4882a593Smuzhiyun #endif
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun return 0;
41*4882a593Smuzhiyun }
42