1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
/*
Copyright (C) 1998,1999,2000,2001,2002,2003,2004
T. Scott Dattalo and Ralf Forsberg
This file is part of gpsim.
gpsim is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
gpsim is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with gpsim; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef GUI_GUI_REGISTER_H_
#define GUI_GUI_REGISTER_H_
#include "gui.h"
#include <string>
//========================================================================
//
// A GUI register is a shadow of a register in a simulated cpu (or module).
//
//
// FIXME -- why not just derive from the Register base class?
class GUIRegister {
public:
RegisterMemoryAccess *rma; // Pointer to the rma that controls this register.
int address; // index in rma register array.
int row; // row & col in register window
int col;
RegisterValue shadow;// value displayed in register window.
// This shadows the real register value. It's used
// to monitor if register has changed between gui updates
int register_size; // The size (in bytes) of a single register
bool bUpdateFull; // true if a full update needs to be performed
bool bIsAliased; // true if this register is aliased
// and this instance is not the base.
bool bIsValid(); // true if this register is a valid one (i.e.
// there's a defined register at the address).
bool bIsSFR(); // true if this register is a special function register
bool hasBreak(); // True if there's a breakpoint set on this register.
bool hasChanged(RegisterValue ¤t_value) const; // True if register has changed values since last updated.
CrossReferenceToGUI *xref;
char *getValueAsString(char *, int, RegisterValue value);
void put_value(unsigned int new_value);
unsigned int get_value();
RegisterValue getRV();
inline operator RegisterValue() {
return getRV();
}
Register *get_register();
// put and get for updating the shadow
void put_shadow(RegisterValue new_value);
RegisterValue get_shadow()
{
return shadow;
}
void Clear_xref();
void Assign_xref(CrossReferenceToGUI *);
std::string name();
GUIRegister();
~GUIRegister();
};
#define MAX_REGISTERS 0x10000
class GUIRegisterList {
public:
explicit GUIRegisterList(RegisterMemoryAccess *pRMA);
~GUIRegisterList();
RegisterMemoryAccess *m_pRMA; // Apointer to the Processor's rma or ema.
GUIRegister * m_paRegisters[MAX_REGISTERS];
GUIRegister * Get(int iAddress);
GUIRegister * Get(unsigned int uAddress);
};
inline GUIRegister *GUIRegisterList::Get(int iAddress) {
if (iAddress >= MAX_REGISTERS)
return nullptr;
return m_paRegisters[iAddress];
}
inline GUIRegister *GUIRegisterList::Get(unsigned int uAddress) {
if (uAddress >= MAX_REGISTERS)
return nullptr;
return m_paRegisters[uAddress];
}
#endif // GUI_GUI_REGISTER_H_
|
