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
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
// license:BSD-3-Clause
// copyright-holders:Aaron Giles
/*********************************************************************
dvmemory.h
Memory debugger view.
***************************************************************************/
#ifndef MAME_EMU_DEBUG_DVMEMORY_H
#define MAME_EMU_DEBUG_DVMEMORY_H
#pragma once
#include "debugvw.h"
#include "softfloat3/source/include/softfloat.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// a memory view_source
class debug_view_memory_source : public debug_view_source
{
friend class debug_view_memory;
public:
debug_view_memory_source(std::string &&name, address_space &space);
debug_view_memory_source(std::string &&name, memory_region ®ion);
debug_view_memory_source(std::string &&name, void *base, int element_size, int num_elements, int num_blocks, int block_stride);
address_space *space() const { return m_space; }
private:
address_space *m_space; // address space we reference (if any)
device_memory_interface *m_memintf; // pointer to the memory interface of the device
void * m_base; // pointer to memory base
offs_t m_blocklength; // length of each block of memory
offs_t m_numblocks; // number of blocks of memory
offs_t m_blockstride; // stride between blocks of memory
offs_t m_offsetxor; // XOR to apply to offsets
endianness_t m_endianness; // endianness of memory
u8 m_prefsize; // preferred bytes per chunk
};
// debug view for memory
class debug_view_memory : public debug_view
{
friend class debug_view_manager;
// construction/destruction
debug_view_memory(running_machine &machine, debug_view_osd_update_func osdupdate, void *osdprivate);
struct memory_view_pos;
public:
enum class data_format
{
HEX_8BIT = 1,
HEX_16BIT = 2,
HEX_32BIT = 4,
HEX_64BIT = 8,
FLOAT_32BIT = 9,
FLOAT_64BIT = 10,
FLOAT_80BIT = 11,
OCTAL_8BIT = 12,
OCTAL_16BIT = 13,
OCTAL_32BIT = 14,
OCTAL_64BIT = 15
};
static bool is_valid_format(data_format format) { return int(format) >= 0 && int(format) < std::size(s_memory_pos_table) && get_posdata(format).m_bytes != 0; }
// getters
const char *expression() const { return m_expression.string(); }
data_format get_data_format() { flush_updates(); return m_data_format; }
u32 chunks_per_row() { flush_updates(); return m_chunks_per_row; }
bool reverse() const { return m_reverse_view; }
bool ascii() const { return m_ascii_view; }
bool physical() const { return m_no_translation; }
int address_radix() const { return m_address_radix; }
offs_t addressAtCursorPosition(const debug_view_xy& pos) { return get_cursor_pos(pos).m_address; }
// setters
void set_expression(const std::string &expression);
void set_chunks_per_row(u32 rowchunks);
void set_data_format(data_format format);
void set_reverse(bool reverse);
void set_ascii(bool ascii);
void set_physical(bool physical);
void set_address_radix(int radix);
protected:
// view overrides
virtual void view_notify(debug_view_notification type) override;
virtual void view_update() override;
virtual void view_char(int chval) override;
virtual void view_click(const int button, const debug_view_xy& pos) override;
private:
struct cursor_pos
{
cursor_pos(offs_t address = 0, u8 shift = 0) : m_address(address), m_shift(shift) { }
offs_t m_address;
u8 m_shift;
};
// data format helpers
static bool is_hex_format(data_format format) { return int(format) <= 8; }
static bool is_octal_format(data_format format) { return int(format) >= 12; }
static const memory_view_pos &get_posdata(data_format format) { return s_memory_pos_table[int(format)]; }
// internal helpers
void enumerate_sources();
void recompute();
bool needs_recompute();
// cursor position management
cursor_pos get_cursor_pos(const debug_view_xy& cursor);
void set_cursor_pos(cursor_pos pos);
cursor_pos begin_update_and_get_cursor_pos() { begin_update(); return get_cursor_pos(m_cursor); }
void end_update_and_set_cursor_pos(cursor_pos pos) { set_cursor_pos(pos); end_update(); }
// memory access
bool read(u8 size, offs_t offs, u64 &data);
void write(u8 size, offs_t offs, u64 data);
bool write_digit(offs_t offs, u8 pos, u8 digit);
bool read(u8 size, offs_t offs, extFloat80_t &data);
bool read_chunk(offs_t address, int chunknum, u64 &chunkdata);
void generate_row(debug_view_char *destmin, debug_view_char *destmax, debug_view_char *destrow, offs_t address);
// internal state
debug_view_expression m_expression; // expression describing the start address
u32 m_chunks_per_row; // number of chunks displayed per line
u8 m_bytes_per_chunk; // bytes per chunk
u8 m_steps_per_chunk; // bytes per chunk
data_format m_data_format; // 1-8 current values 9 32bit floating point
bool m_reverse_view; // reverse-endian view?
bool m_ascii_view; // display ASCII characters?
bool m_no_translation; // don't run addresses through the cpu translation hook
bool m_edit_enabled; // can modify contents ?
u8 m_shift_bits; // number of bits for each character/cursor position
u8 m_address_radix; // numerical radix for address column and expressions
offs_t m_maxaddr; // (derived) maximum address to display
u32 m_bytes_per_row; // (derived) number of bytes displayed per line
u32 m_byte_offset; // (derived) offset of starting visible byte
std::string m_addrformat; // (derived) format string to use to print addresses
struct section
{
bool contains(int x) const { return x >= m_pos && x < m_pos + m_width; }
s32 m_pos; /* starting position */
s32 m_width; /* width of this section */
};
section m_section[3]; // (derived) 3 sections to manage
struct memory_view_pos
{
u8 m_bytes; // bytes per entry
u8 m_spacing; // spacing between each entry
u8 m_shift[28]; // shift for each character
};
static const memory_view_pos s_memory_pos_table[16]; // table for rendering at different data formats
// constants
static constexpr int MEM_MAX_LINE_WIDTH = 1024;
};
#endif // MAME_EMU_DEBUG_DVMEMORY_H
|