1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (C) 2005-2018 Andes Technology Corporation
3 #include <linux/uaccess.h>
4 
5 #include <asm/sfp-machine.h>
6 #include <math-emu/soft-fp.h>
7 #include <math-emu/double.h>
fsubd(void * ft,void * fa,void * fb)8 void fsubd(void *ft, void *fa, void *fb)
9 {
10 
11 	FP_DECL_D(A);
12 	FP_DECL_D(B);
13 	FP_DECL_D(R);
14 	FP_DECL_EX;
15 
16 	FP_UNPACK_DP(A, fa);
17 	FP_UNPACK_DP(B, fb);
18 
19 	if (B_c != FP_CLS_NAN)
20 		B_s ^= 1;
21 
22 	FP_ADD_D(R, A, B);
23 
24 	FP_PACK_DP(ft, R);
25 
26 	__FPU_FPCSR |= FP_CUR_EXCEPTIONS;
27 }
28