2 * linux/arch/sh/kernel/cpu/sh4/sh4_fpu.h
4 * Copyright (C) 2006 STMicroelectronics Limited
5 * Author: Carl Shaw <carl.shaw@st.com>
7 * May be copied or modified under the terms of the GNU General Public
8 * License Version 2. See linux/COPYING for more information.
10 * Definitions for SH4 FPU operations
13 #ifndef __CPU_SH4_FPU_H
14 #define __CPU_SH4_FPU_H
16 #define FPSCR_ENABLE_MASK 0x00000f80UL
18 #define FPSCR_FMOV_DOUBLE (1<<1)
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)
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)