| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 |
| 2 | * |
| 3 | * linux/arch/sh/kernel/cpu/sh4/sh4_fpu.h |
| 4 | * |
| 5 | * Copyright (C) 2006 STMicroelectronics Limited |
| 6 | * Author: Carl Shaw <carl.shaw@st.com> |
| 7 | * |
| 8 | * Definitions for SH4 FPU operations |
| 9 | */ |
| 10 | |
| 11 | #ifndef __CPU_SH4_FPU_H |
| 12 | #define __CPU_SH4_FPU_H |
| 13 | |
| 14 | #define FPSCR_ENABLE_MASK 0x00000f80UL |
| 15 | |
| 16 | #define FPSCR_FMOV_DOUBLE (1<<1) |
| 17 | |
| 18 | #define FPSCR_CAUSE_INEXACT (1<<12) |
| 19 | #define FPSCR_CAUSE_UNDERFLOW (1<<13) |
| 20 | #define FPSCR_CAUSE_OVERFLOW (1<<14) |
| 21 | #define FPSCR_CAUSE_DIVZERO (1<<15) |
| 22 | #define FPSCR_CAUSE_INVALID (1<<16) |
| 23 | #define FPSCR_CAUSE_ERROR (1<<17) |
| 24 | |
| 25 | #define FPSCR_DBL_PRECISION (1<<19) |
| 26 | #define FPSCR_ROUNDING_MODE(x) ((x >> 20) & 3) |
| 27 | #define FPSCR_RM_NEAREST (0) |
| 28 | #define FPSCR_RM_ZERO (1) |
| 29 | |
| 30 | #endif |