xref: /OK3568_Linux_fs/kernel/arch/powerpc/math-emu/frsp.c (revision 4882a59341e53eb6f0b4789bf948001014eff981)
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 #include <math-emu/single.h>
10*4882a593Smuzhiyun 
11*4882a593Smuzhiyun int
frsp(void * frD,void * frB)12*4882a593Smuzhiyun frsp(void *frD, void *frB)
13*4882a593Smuzhiyun {
14*4882a593Smuzhiyun 	FP_DECL_D(B);
15*4882a593Smuzhiyun 	FP_DECL_EX;
16*4882a593Smuzhiyun 
17*4882a593Smuzhiyun #ifdef DEBUG
18*4882a593Smuzhiyun 	printk("%s: D %p, B %p\n", __func__, frD, frB);
19*4882a593Smuzhiyun #endif
20*4882a593Smuzhiyun 
21*4882a593Smuzhiyun 	FP_UNPACK_DP(B, frB);
22*4882a593Smuzhiyun 
23*4882a593Smuzhiyun #ifdef DEBUG
24*4882a593Smuzhiyun 	printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
25*4882a593Smuzhiyun #endif
26*4882a593Smuzhiyun 
27*4882a593Smuzhiyun 	__FP_PACK_DS(frD, B);
28*4882a593Smuzhiyun 
29*4882a593Smuzhiyun 	return FP_CUR_EXCEPTIONS;
30*4882a593Smuzhiyun }
31