1// -*- mode:c++ -*-
2
3// Copyright (c) 2006 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

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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: Korey Sewell
30
31////////////////////////////////////////////////////////////////////
32//
33// Integer operate instructions
34//
35
36//Outputs to decoder.hh
37output header {{
38
39 class Control : public MipsStaticInst
40 {
41 protected:
42
43 /// Constructor
44 Control(const char *mnem, MachInst _machInst, OpClass __opClass) :
45 MipsStaticInst(mnem, _machInst, __opClass)
46 {
47 }
48
49 std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
50 };
51
52 class CP0Control : public Control
53 {
54 protected:
55
56 /// Constructor
57 CP0Control(const char *mnem, MachInst _machInst, OpClass __opClass) :
58 Control(mnem, _machInst, __opClass)
59 {
60 }
61
62 std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
63 };
64
65 class CP1Control : public Control
66 {
67 protected:
68
69 /// Constructor
70 CP1Control(const char *mnem, MachInst _machInst, OpClass __opClass) :
71 Control(mnem, _machInst, __opClass)
72 {
73 }
74
75 std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
76 };
77
78}};
79
80//Outputs to decoder.cc
81output decoder {{
82 std::string Control::generateDisassembly(Addr pc, const SymbolTable *symtab) const
83 {
84 std::stringstream ss;
85
86 ccprintf(ss, "%-10s ", mnemonic);
87
88 if (mnemonic == "mfc0" || mnemonic == "mtc0") {
89 ccprintf(ss, "%-10s %d,%d,%d", mnemonic,RT,RD,SEL);
90 } else {
91
92 // just print the first dest... if there's a second one,
93 // it's generally implicit
94 if (_numDestRegs > 0) {
95 printReg(ss, _destRegIdx[0]);
96 }
97
98 ss << ", ";
99
100 // just print the first two source regs... if there's
101 // a third one, it's a read-modify-write dest (Rc),
102 // e.g. for CMOVxx
103 if (_numSrcRegs > 0) {
104 printReg(ss, _srcRegIdx[0]);
105 }
106
107 if (_numSrcRegs > 1) {
108 ss << ", ";
109 printReg(ss, _srcRegIdx[1]);
110 }
111 }
112
113 return ss.str();
114 }
115
116 std::string CP0Control::generateDisassembly(Addr pc, const SymbolTable *symtab) const
117 {
118 std::stringstream ss;
119 ccprintf(ss, "%-10s r%d, r%d, %d", mnemonic, RT, RD, SEL);
120 return ss.str();
121 }
122
123 std::string CP1Control::generateDisassembly(Addr pc, const SymbolTable *symtab) const
124 {
125 std::stringstream ss;
126 ccprintf(ss, "%-10s r%d, f%d", mnemonic, RT, FS);
127 return ss.str();
128 }
129
130}};
131
132def format System(code, *flags) {{
133 iop = InstObjParams(name, Name, 'Control', code, flags)
134 header_output = BasicDeclare.subst(iop)
135 decoder_output = BasicConstructor.subst(iop)
136 decode_block = BasicDecode.subst(iop)
137 exec_output = BasicExecute.subst(iop)
138}};
139
140def format CP0Control(code, *flags) {{
141 iop = InstObjParams(name, Name, 'CP0Control', code, flags)
142 header_output = BasicDeclare.subst(iop)
143 decoder_output = BasicConstructor.subst(iop)
144 decode_block = BasicDecode.subst(iop)
145 exec_output = BasicExecute.subst(iop)
146}};
147
148def format CP1Control(code, *flags) {{
149 iop = InstObjParams(name, Name, 'CP1Control', code, flags)
150 header_output = BasicDeclare.subst(iop)
151 decoder_output = BasicConstructor.subst(iop)
152 decode_block = BasicDecode.subst(iop)
153 exec_output = BasicExecute.subst(iop)
154}};
155
156