vfp.isa revision 7848 
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// Redistribution and use in source and binary forms, with or without
16// modification, are permitted provided that the following conditions are
17// met: redistributions of source code must retain the above copyright
18// notice, this list of conditions and the following disclaimer;
19// redistributions in binary form must reproduce the above copyright
20// notice, this list of conditions and the following disclaimer in the
21// documentation and/or other materials provided with the distribution;
22// neither the name of the copyright holders nor the names of its
23// contributors may be used to endorse or promote products derived from
24// this software without specific prior written permission.
25//
26// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
27// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
28// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
29// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
30// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
31// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
33// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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36// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37//
38// Authors: Gabe Black
39
40let {{
41    vfpEnabledCheckCode = '''
42        if (!vfpEnabled(Cpacr, Cpsr, Fpexc))
43            return disabledFault();
44    '''
45
46    vmsrEnabledCheckCode = '''
47        if (!vfpEnabled(Cpacr, Cpsr))
48            if (dest != (int)MISCREG_FPEXC && dest != (int)MISCREG_FPSID)
49                return disabledFault();
50        if (!inPrivilegedMode(Cpsr))
51            if (dest != (int)MISCREG_FPSCR)
52                return disabledFault();
53
54    '''
55
56    vmrsEnabledCheckCode = '''
57        if (!vfpEnabled(Cpacr, Cpsr))
58            if (op1 != (int)MISCREG_FPEXC && op1 != (int)MISCREG_FPSID &&
59                op1 != (int)MISCREG_MVFR0 && op1 != (int)MISCREG_MVFR1)
60                return disabledFault();
61        if (!inPrivilegedMode(Cpsr))
62            if (op1 != (int)MISCREG_FPSCR)
63                return disabledFault();
64    '''
65}};
66
67def template FpRegRegOpDeclare {{
68class %(class_name)s : public %(base_class)s
69{
70  public:
71    // Constructor
72    %(class_name)s(ExtMachInst machInst,
73                   IntRegIndex _dest, IntRegIndex _op1,
74                   VfpMicroMode mode = VfpNotAMicroop);
75    %(BasicExecDeclare)s
76};
77}};
78
79def template FpRegRegOpConstructor {{
80    inline %(class_name)s::%(class_name)s(ExtMachInst machInst,
81                                          IntRegIndex _dest, IntRegIndex _op1,
82                                          VfpMicroMode mode)
83        : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s,
84                _dest, _op1, mode)
85    {
86        %(constructor)s;
87        if (!(condCode == COND_AL || condCode == COND_UC)) {
88            for (int x = 0; x < _numDestRegs; x++) {
89                _srcRegIdx[_numSrcRegs++] = _destRegIdx[x];
90            }
91        }
92    }
93}};
94
95def template FpRegImmOpDeclare {{
96class %(class_name)s : public %(base_class)s
97{
98  public:
99    // Constructor
100    %(class_name)s(ExtMachInst machInst, IntRegIndex _dest,
101            uint64_t _imm, VfpMicroMode mode = VfpNotAMicroop);
102    %(BasicExecDeclare)s
103};
104}};
105
106def template FpRegImmOpConstructor {{
107    inline %(class_name)s::%(class_name)s(ExtMachInst machInst,
108            IntRegIndex _dest, uint64_t _imm, VfpMicroMode mode)
109        : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s,
110                _dest, _imm, mode)
111    {
112        %(constructor)s;
113        if (!(condCode == COND_AL || condCode == COND_UC)) {
114            for (int x = 0; x < _numDestRegs; x++) {
115                _srcRegIdx[_numSrcRegs++] = _destRegIdx[x];
116            }
117        }
118    }
119}};
120
121def template FpRegRegImmOpDeclare {{
122class %(class_name)s : public %(base_class)s
123{
124  public:
125    // Constructor
126    %(class_name)s(ExtMachInst machInst,
127                   IntRegIndex _dest, IntRegIndex _op1,
128                   uint64_t _imm, VfpMicroMode mode = VfpNotAMicroop);
129    %(BasicExecDeclare)s
130};
131}};
132
133def template FpRegRegImmOpConstructor {{
134    inline %(class_name)s::%(class_name)s(ExtMachInst machInst,
135                                          IntRegIndex _dest,
136                                          IntRegIndex _op1,
137                                          uint64_t _imm,
138                                          VfpMicroMode mode)
139        : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s,
140                         _dest, _op1, _imm, mode)
141    {
142        %(constructor)s;
143        if (!(condCode == COND_AL || condCode == COND_UC)) {
144            for (int x = 0; x < _numDestRegs; x++) {
145                _srcRegIdx[_numSrcRegs++] = _destRegIdx[x];
146            }
147        }
148    }
149}};
150
151def template FpRegRegRegOpDeclare {{
152class %(class_name)s : public %(base_class)s
153{
154  public:
155    // Constructor
156    %(class_name)s(ExtMachInst machInst,
157                   IntRegIndex _dest, IntRegIndex _op1, IntRegIndex _op2,
158                   VfpMicroMode mode = VfpNotAMicroop);
159    %(BasicExecDeclare)s
160};
161}};
162
163def template FpRegRegRegOpConstructor {{
164    inline %(class_name)s::%(class_name)s(ExtMachInst machInst,
165                                          IntRegIndex _dest,
166                                          IntRegIndex _op1,
167                                          IntRegIndex _op2,
168                                          VfpMicroMode mode)
169        : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s,
170                         _dest, _op1, _op2, mode)
171    {
172        %(constructor)s;
173        if (!(condCode == COND_AL || condCode == COND_UC)) {
174            for (int x = 0; x < _numDestRegs; x++) {
175                _srcRegIdx[_numSrcRegs++] = _destRegIdx[x];
176            }
177        }
178    }
179}};
180