mem.isa (6250:1cc6e860d95f) mem.isa (6253:988a001820f8)
1// -*- mode:c++ -*-
2
3// Copyright (c) 2007-2008 The Florida State University
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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28//
29// Authors: Stephen Hines
30
31////////////////////////////////////////////////////////////////////
32//
33// Memory-format instructions
34//
35
1// -*- mode:c++ -*-
2
3// Copyright (c) 2007-2008 The Florida State University
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

--- 19 unchanged lines hidden (view full) ---

28//
29// Authors: Stephen Hines
30
31////////////////////////////////////////////////////////////////////
32//
33// Memory-format instructions
34//
35
36output header {{
37 /**
38 * Base class for general Arm memory-format instructions.
39 */
40 class Memory : public PredOp
41 {
42 protected:
43
44 /// Memory request flags. See mem_req_base.hh.
45 unsigned memAccessFlags;
46 /// Pointer to EAComp object.
47 const StaticInstPtr eaCompPtr;
48 /// Pointer to MemAcc object.
49 const StaticInstPtr memAccPtr;
50
51 /// Displacement for EA calculation (signed).
52 int32_t disp;
53 int32_t disp8;
54 int32_t up;
55 int32_t hilo,
56 shift_size,
57 shift;
58
59 /// Constructor
60 Memory(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
61 StaticInstPtr _eaCompPtr = nullStaticInstPtr,
62 StaticInstPtr _memAccPtr = nullStaticInstPtr)
63 : PredOp(mnem, _machInst, __opClass),
64 memAccessFlags(0), eaCompPtr(_eaCompPtr), memAccPtr(_memAccPtr),
65 disp(IMMED_11_0), disp8(IMMED_7_0 << 2), up(UP),
66 hilo((IMMED_HI_11_8 << 4) | IMMED_LO_3_0),
67 shift_size(SHIFT_SIZE), shift(SHIFT)
68 {
69 // When Up is not set, then we must subtract by the displacement
70 if (!up)
71 {
72 disp = -disp;
73 disp8 = -disp8;
74 hilo = -hilo;
75 }
76 }
77
78 std::string
79 generateDisassembly(Addr pc, const SymbolTable *symtab) const;
80
81 public:
82
83 const StaticInstPtr &eaCompInst() const { return eaCompPtr; }
84 const StaticInstPtr &memAccInst() const { return memAccPtr; }
85 };
86
87 /**
88 * Base class for a few miscellaneous memory-format insts
89 * that don't interpret the disp field
90 */
91 class MemoryNoDisp : public Memory
92 {
93 protected:
94 /// Constructor
95 MemoryNoDisp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
96 StaticInstPtr _eaCompPtr = nullStaticInstPtr,
97 StaticInstPtr _memAccPtr = nullStaticInstPtr)
98 : Memory(mnem, _machInst, __opClass, _eaCompPtr, _memAccPtr)
99 {
100 }
101
102 std::string
103 generateDisassembly(Addr pc, const SymbolTable *symtab) const;
104 };
105}};
106
107
108output decoder {{
109 std::string
110 Memory::generateDisassembly(Addr pc, const SymbolTable *symtab) const
111 {
112 return csprintf("%-10s", mnemonic);
113 }
114
115 std::string
116 MemoryNoDisp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
117 {
118 return csprintf("%-10s", mnemonic);
119 }
120}};
121
122def template LoadStoreDeclare {{
123 /**
124 * Static instruction class for "%(mnemonic)s".
125 */
126 class %(class_name)s : public %(base_class)s
127 {
128 protected:
129

--- 432 unchanged lines hidden --- 		36def template LoadStoreDeclare {{
37 /**
38 * Static instruction class for "%(mnemonic)s".
39 */
40 class %(class_name)s : public %(base_class)s
41 {
42 protected:
43

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