gem5
v22.1.0.0
arch
riscv
fp_inst.hh
Go to the documentation of this file.
1
/*
2
* Copyright (c) 2021 StreamComputing Corp.
3
* All rights reserved
4
*
5
* Redistribution and use in source and binary forms, with or without
6
* modification, are permitted provided that the following conditions are
7
* met: redistributions of source code must retain the above copyright
8
* notice, this list of conditions and the following disclaimer;
9
* redistributions in binary form must reproduce the above copyright
10
* notice, this list of conditions and the following disclaimer in the
11
* documentation and/or other materials provided with the distribution;
12
* neither the name of the copyright holders nor the names of its
13
* contributors may be used to endorse or promote products derived from
14
* this software without specific prior written permission.
15
*
16
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
*
28
* Authors: Kai Ren
29
*/
30
31
#ifndef __ARCH_RISCV_FP_INST_HH__
32
#define __ARCH_RISCV_FP_INST_HH__
33
34
#define RM_REQUIRED \
35
uint_fast8_t rm = ROUND_MODE; \
36
uint_fast8_t frm = xc->readMiscReg(MISCREG_FRM); \
37
if (rm == 7) \
38
rm = frm; \
39
if (rm > 4) \
40
return std::make_shared<IllegalInstFault>("RM fault"
, machInst);\
41
softfloat_roundingMode = rm; \
42
43
#endif
// __ARCH_RISCV_FP_INST_HH__
Generated on Wed Dec 21 2022 10:22:27 for gem5 by
doxygen
1.9.1