xref: /qemu/target/riscv/internals.h (revision 12b35405)
1 /*
2  * QEMU RISC-V CPU -- internal functions and types
3  *
4  * Copyright (c) 2020 T-Head Semiconductor Co., Ltd. All rights reserved.
5  *
6  * This program is free software; you can redistribute it and/or modify it
7  * under the terms and conditions of the GNU General Public License,
8  * version 2 or later, as published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope it will be useful, but WITHOUT
11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
13  * more details.
14  *
15  * You should have received a copy of the GNU General Public License along with
16  * this program.  If not, see <http://www.gnu.org/licenses/>.
17  */
18 
19 #ifndef RISCV_CPU_INTERNALS_H
20 #define RISCV_CPU_INTERNALS_H
21 
22 #include "hw/registerfields.h"
23 
24 /* share data between vector helpers and decode code */
25 FIELD(VDATA, MLEN, 0, 8)
26 FIELD(VDATA, VM, 8, 1)
27 FIELD(VDATA, LMUL, 9, 2)
28 FIELD(VDATA, NF, 11, 4)
29 FIELD(VDATA, WD, 11, 1)
30 
31 /* float point classify helpers */
32 target_ulong fclass_h(uint64_t frs1);
33 target_ulong fclass_s(uint64_t frs1);
34 target_ulong fclass_d(uint64_t frs1);
35 
36 #define SEW8  0
37 #define SEW16 1
38 #define SEW32 2
39 #define SEW64 3
40 
41 #endif
42