1// -*- mode:c++ -*-
2
3// Copyright (c) 2006-2007 The Regents of The University of Michigan
4// All rights reserved.
5//
6// Redistribution and use in source and binary forms, with or without
7// modification, are permitted provided that the following conditions are
8// met: redistributions of source code must retain the above copyright
9// notice, this list of conditions and the following disclaimer;
10// redistributions in binary form must reproduce the above copyright
11// notice, this list of conditions and the following disclaimer in the
12// documentation and/or other materials provided with the distribution;
13// neither the name of the copyright holders nor the names of its
14// contributors may be used to endorse or promote products derived from
15// this software without specific prior written permission.
16//
17// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28//
29// Authors: Ali Saidi
30// Gabe Black
31
32////////////////////////////////////////////////////////////////////
33//
34// Mem instructions
35//
36
37def template MemDeclare {{
38 /**
39 * Static instruction class for "%(mnemonic)s".
40 */
41 class %(class_name)s : public %(base_class)s
42 {
43 public:
44
45 /// Constructor.
46 %(class_name)s(ExtMachInst machInst);
47
48 Fault execute(ExecContext *, Trace::InstRecord *) const override;
49 Fault initiateAcc(ExecContext *,
50 Trace::InstRecord *) const override;
51 Fault completeAcc(PacketPtr, ExecContext *,
52 Trace::InstRecord *) const override;
53 };
54}};
55
56let {{
57 def doMemFormat(code, execute, faultCode, name, Name, asi, opt_flags, postacc_code = ''):
58 addrCalcReg = 'EA = Rs1 + Rs2;'
59 addrCalcImm = 'EA = Rs1 + imm;'
60 iop = InstObjParams(name, Name, 'Mem',
61 {"code": code, "postacc_code" : postacc_code,
62 "fault_check": faultCode, "ea_code": addrCalcReg,
63 "EA_trunc": TruncateEA}, opt_flags)
64 iop_imm = InstObjParams(name, Name + "Imm", 'MemImm',
65 {"code": code, "postacc_code" : postacc_code,
66 "fault_check": faultCode, "ea_code": addrCalcImm,
67 "EA_trunc": TruncateEA}, opt_flags)
68 header_output = MemDeclare.subst(iop) + MemDeclare.subst(iop_imm)
69 decoder_output = BasicConstructor.subst(iop) + BasicConstructor.subst(iop_imm)
70 decode_block = ROrImmDecode.subst(iop)
71 exec_output = doDualSplitExecute(code, postacc_code, addrCalcReg,
72 addrCalcImm, execute, faultCode, name, name + "Imm",
73 Name, Name + "Imm", asi, opt_flags)
74 return (header_output, decoder_output, exec_output, decode_block)
75}};
76
77def format LoadAlt(code, *opt_flags) {{
78 code = filterDoubles(code)
79 (header_output,
80 decoder_output,
81 exec_output,
82 decode_block) = doMemFormat(code, LoadFuncs,
83 AlternateASIPrivFaultCheck, name, Name, "EXT_ASI", opt_flags)
84}};
85
86def format StoreAlt(code, *opt_flags) {{
87 code = filterDoubles(code)
88 (header_output,
89 decoder_output,
90 exec_output,
91 decode_block) = doMemFormat(code, StoreFuncs,
92 AlternateASIPrivFaultCheck, name, Name, "EXT_ASI", opt_flags)
93}};
94
95def format Load(code, *opt_flags) {{
96 code = filterDoubles(code)
97 (header_output,
98 decoder_output,
99 exec_output,
100 decode_block) = doMemFormat(code,
101 LoadFuncs, '', name, Name, 0, opt_flags)
102}};
103
104def format Store(code, *opt_flags) {{
105 code = filterDoubles(code)
106 (header_output,
107 decoder_output,
108 exec_output,
109 decode_block) = doMemFormat(code,
110 StoreFuncs, '', name, Name, 0, opt_flags)
111}};
112
113def format StoreFsr(code, *opt_flags) {{
114 code = filterDoubles(code)
115 (header_output,
116 decoder_output,
117 exec_output,
118 decode_block) = doMemFormat(code,
119 StoreFuncs, '', name, Name, 0, opt_flags,
120 'Fsr = insertBits(Fsr,16,14,0);')
121}};
122
123def format TwinLoad(code, *opt_flags) {{
124 (header_output,
125 decoder_output,
126 exec_output,
127 decode_block) = doMemFormat(code, LoadFuncs,
128 AlternateASIPrivFaultCheck + TwinAlignmentFaultCheck,
129 name, Name, "EXT_ASI", opt_flags)
130}};
131