gem5 v24.0.0.0
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fp_inst.hh
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1/*
2 * Copyright (c) 2021 StreamComputing Corp.
3 * All rights reserved
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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
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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
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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__

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