1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
// -*- mode:c++ -*-
// Copyright (c) 2015 RISC-V Foundation
// Copyright (c) 2017 The University of Virginia
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met: redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer;
// redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution;
// neither the name of the copyright holders nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Authors: Alec Roelke
output header {{
/**
* Base class for compressed operations that work only on registers
*/
class CompRegOp : public RiscvStaticInst
{
protected:
/// Constructor
CompRegOp(const char *mnem, MachInst _machInst, OpClass __opClass)
: RiscvStaticInst(mnem, _machInst, __opClass)
{}
std::string
generateDisassembly(Addr pc, const SymbolTable *symtab) const;
};
}};
output decoder {{
std::string
CompRegOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
std::stringstream ss;
ss << mnemonic << ' ' << registerName(_destRegIdx[0]) << ", " <<
registerName(_srcRegIdx[0]);
return ss.str();
}
}};
def format CROp(code, *opt_flags) {{
iop = InstObjParams(name, Name, 'CompRegOp', code, opt_flags)
header_output = BasicDeclare.subst(iop)
decoder_output = BasicConstructor.subst(iop)
decode_block = BasicDecode.subst(iop)
exec_output = BasicExecute.subst(iop)
}};
def format CIOp(imm_code, code, *opt_flags) {{
regs = ['_destRegIdx[0]','_srcRegIdx[0]']
iop = InstObjParams(name, Name, 'ImmOp',
{'code': code, 'imm_code': imm_code,
'regs': ','.join(regs)}, opt_flags)
header_output = ImmDeclare.subst(iop)
decoder_output = ImmConstructor.subst(iop)
decode_block = BasicDecode.subst(iop)
exec_output = ImmExecute.subst(iop)
}};
def format CUIOp(imm_code, code, *opt_flags) {{
regs = ['_destRegIdx[0]','_srcRegIdx[0]']
iop = InstObjParams(name, Name, 'UImmOp',
{'code': code, 'imm_code': imm_code,
'regs': ','.join(regs)}, opt_flags)
header_output = ImmDeclare.subst(iop)
decoder_output = ImmConstructor.subst(iop)
decode_block = BasicDecode.subst(iop)
exec_output = ImmExecute.subst(iop)
}};
def format CompressedLoad(ldisp_code, memacc_code,
ea_code, mem_flags=[], inst_flags=[]) {{
(header_output, decoder_output, decode_block, exec_output) = \
LoadStoreBase(name, Name, ldisp_code, ea_code, memacc_code, mem_flags,
inst_flags, 'Load', exec_template_base='Load')
}};
def format CompressedStore(sdisp_code, memacc_code,
ea_code, mem_flags=[], inst_flags=[]) {{
(header_output, decoder_output, decode_block, exec_output) = \
LoadStoreBase(name, Name, sdisp_code, ea_code, memacc_code, mem_flags,
inst_flags, 'Store', exec_template_base='Store')
}};
|
