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1 /*
2  * linux/arch/sh/kernel/cpu/sh4/sh4_fpu.h
3  *
4  * Copyright (C) 2006 STMicroelectronics Limited
5  * Author: Carl Shaw <carl.shaw@st.com>
6  *
7  * May be copied or modified under the terms of the GNU General Public
8  * License Version 2.  See linux/COPYING for more information.
9  *
10  * Definitions for SH4 FPU operations
11  */
12 
13 #ifndef __CPU_SH4_FPU_H
14 #define __CPU_SH4_FPU_H
15 
16 #define FPSCR_ENABLE_MASK	0x00000f80UL
17 
18 #define FPSCR_FMOV_DOUBLE	(1<<1)
19 
20 #define FPSCR_CAUSE_INEXACT	(1<<12)
21 #define FPSCR_CAUSE_UNDERFLOW	(1<<13)
22 #define FPSCR_CAUSE_OVERFLOW	(1<<14)
23 #define FPSCR_CAUSE_DIVZERO	(1<<15)
24 #define FPSCR_CAUSE_INVALID	(1<<16)
25 #define FPSCR_CAUSE_ERROR 	(1<<17)
26 
27 #define FPSCR_DBL_PRECISION	(1<<19)
28 #define FPSCR_ROUNDING_MODE(x)	((x >> 20) & 3)
29 #define FPSCR_RM_NEAREST	(0)
30 #define FPSCR_RM_ZERO		(1)
31 
32 #endif
33