1// -*- mode:c++ -*-
2
3// Copyright (c) 2010 ARM Limited
4// All rights reserved
5//
6// The license below extends only to copyright in the software and shall
7// not be construed as granting a license to any other intellectual
8// property including but not limited to intellectual property relating
9// to a hardware implementation of the functionality of the software
10// licensed hereunder. You may use the software subject to the license
11// terms below provided that you ensure that this notice is replicated
12// unmodified and in its entirety in all distributions of the software,
13// modified or unmodified, in source code or in binary form.
14//
15// Copyright (c) 2007-2008 The Florida State University
16// All rights reserved.
17//
18// Redistribution and use in source and binary forms, with or without
19// modification, are permitted provided that the following conditions are
20// met: redistributions of source code must retain the above copyright
21// notice, this list of conditions and the following disclaimer;
22// redistributions in binary form must reproduce the above copyright
23// notice, this list of conditions and the following disclaimer in the
24// documentation and/or other materials provided with the distribution;
25// neither the name of the copyright holders nor the names of its
26// contributors may be used to endorse or promote products derived from
27// this software without specific prior written permission.
28//
29// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
30// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
31// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
32// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
33// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
34// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
35// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
36// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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38// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
39// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
40//
41// Authors: Stephen Hines
42// Gabe Black
43
44////////////////////////////////////////////////////////////////////
45//
46// Load/store microops
47//
48
49let {{
50 predicateTest = 'testPredicate(CondCodes, condCode)'
51}};
52
53let {{
54 microLdrUopIop = InstObjParams('ldr_uop', 'MicroLdrUop',
55 'MicroMemOp',
56 {'memacc_code': 'IWRa = Mem;',
57 'ea_code': 'EA = Rb + (up ? imm : -imm);',
58 'predicate_test': predicateTest},
59 ['IsMicroop'])
60
61 microLdrFpUopIop = InstObjParams('ldrfp_uop', 'MicroLdrFpUop',
62 'MicroMemOp',
63 {'memacc_code': 'Fa = Mem;',
64 'ea_code': 'EA = Rb + (up ? imm : -imm);',
65 'predicate_test': predicateTest},
66 ['IsMicroop'])
67
68 microLdrRetUopCode = '''
69 uint32_t newCpsr =
70 cpsrWriteByInstr(Cpsr | CondCodes, Spsr, 0xF, true);
71 Cpsr = ~CondCodesMask & newCpsr;
72 CondCodes = CondCodesMask & newCpsr;
73 IWNPC = Mem | ((Spsr & 0x20) ? 1 : 0);
74 '''
75 microLdrRetUopIop = InstObjParams('ldr_ret_uop', 'MicroLdrRetUop',
76 'MicroMemOp',
77 {'memacc_code': microLdrRetUopCode,
78 'ea_code':
79 'EA = Rb + (up ? imm : -imm);',
80 'predicate_test': predicateTest},
81 ['IsMicroop'])
82
83 microStrUopIop = InstObjParams('str_uop', 'MicroStrUop',
84 'MicroMemOp',
85 {'memacc_code': 'Mem = Ra;',
86 'ea_code': 'EA = Rb + (up ? imm : -imm);',
87 'predicate_test': predicateTest},
88 ['IsMicroop'])
89
90 microStrFpUopIop = InstObjParams('strfp_uop', 'MicroStrFpUop',
91 'MicroMemOp',
92 {'memacc_code': 'Mem = Fa;',
93 'ea_code': 'EA = Rb + (up ? imm : -imm);',
94 'predicate_test': predicateTest},
95 ['IsMicroop'])
96
97 header_output = decoder_output = exec_output = ''
98
99 loadIops = (microLdrUopIop, microLdrFpUopIop, microLdrRetUopIop)
100 storeIops = (microStrUopIop, microStrFpUopIop)
101 for iop in loadIops + storeIops:
102 header_output += MicroMemDeclare.subst(iop)
103 decoder_output += MicroMemConstructor.subst(iop)
104 for iop in loadIops:
105 exec_output += LoadExecute.subst(iop) + \
106 LoadInitiateAcc.subst(iop) + \
107 LoadCompleteAcc.subst(iop)
108 for iop in storeIops:
109 exec_output += StoreExecute.subst(iop) + \
110 StoreInitiateAcc.subst(iop) + \
111 StoreCompleteAcc.subst(iop)
112}};
113
114////////////////////////////////////////////////////////////////////
115//
116// Integer = Integer op Immediate microops
117//
118
119let {{
120 microAddiUopIop = InstObjParams('addi_uop', 'MicroAddiUop',
121 'MicroIntOp',
122 {'code': 'Ra = Rb + imm;',
123 'predicate_test': predicateTest},
124 ['IsMicroop'])
125
126 microSubiUopIop = InstObjParams('subi_uop', 'MicroSubiUop',
127 'MicroIntOp',
128 {'code': 'Ra = Rb - imm;',
129 'predicate_test': predicateTest},
130 ['IsMicroop'])
131
132 header_output = MicroIntDeclare.subst(microAddiUopIop) + \
133 MicroIntDeclare.subst(microSubiUopIop)
134 decoder_output = MicroIntConstructor.subst(microAddiUopIop) + \
135 MicroIntConstructor.subst(microSubiUopIop)
136 exec_output = PredOpExecute.subst(microAddiUopIop) + \
137 PredOpExecute.subst(microSubiUopIop)
138}};
139
140let {{
141 iop = InstObjParams("ldmstm", "LdmStm", 'MacroMemOp', "", [])
142 header_output = MacroMemDeclare.subst(iop)
143 decoder_output = MacroMemConstructor.subst(iop)
144
145 vfpIop = InstObjParams("vldmstm", "VLdmStm", 'MacroVFPMemOp', "", [])
146 header_output += MacroVFPMemDeclare.subst(vfpIop)
147 decoder_output += MacroVFPMemConstructor.subst(vfpIop)
148}};