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
173
174
175
176
|
/***************************************************************************
Sega System 16A/16B/18/Outrun/Hang On/X-Board/Y-Board hardware
****************************************************************************
Copyright Aaron Giles
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
* Neither the name 'MAME' nor the names of its contributors may be
used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY AARON GILES ''AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL AARON GILES BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
***************************************************************************/
#include "cpu/m68000/m68000.h"
#include "cpu/mcs51/mcs51.h"
#include "cpu/z80/z80.h"
#include "machine/nvram.h"
#include "machine/segaic16.h"
#include "video/segaic16.h"
#include "machine/megavdp.h"
// ======================> segas18_state
class segas18_state : public driver_device
{
public:
// construction/destruction
segas18_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_mapper(*this, "mapper"),
m_maincpu(*this, "maincpu"),
m_soundcpu(*this, "soundcpu"),
m_mcu(*this, "mcu"),
m_vdp(*this, "gen_vdp"),
m_nvram(*this, "nvram"),
m_workram(*this, "workram"),
m_romboard(ROM_BOARD_INVALID),
m_has_guns(false),
m_grayscale_enable(false),
m_vdp_enable(false),
m_vdp_mixing(0),
m_mcu_data(0),
m_lghost_value(0),
m_lghost_select(0)
{
memset(m_misc_io_data, 0, sizeof(m_misc_io_data));
memset(m_wwally_last_x, 0, sizeof(m_wwally_last_x));
memset(m_wwally_last_y, 0, sizeof(m_wwally_last_y));
}
// driver init
DECLARE_DRIVER_INIT(ddcrew);
DECLARE_DRIVER_INIT(lghost);
DECLARE_DRIVER_INIT(generic_shad);
DECLARE_DRIVER_INIT(generic_5874);
DECLARE_DRIVER_INIT(wwally);
DECLARE_DRIVER_INIT(generic_5987);
// memory mapping
void memory_mapper(sega_315_5195_mapper_device &mapper, UINT8 index);
UINT8 mapper_sound_r();
void mapper_sound_w(UINT8 data);
// read/write handlers
DECLARE_WRITE16_MEMBER( rom_5987_bank_w );
DECLARE_READ16_MEMBER( io_chip_r );
DECLARE_WRITE16_MEMBER( io_chip_w );
DECLARE_READ16_MEMBER( misc_io_r );
DECLARE_WRITE16_MEMBER( misc_io_w );
DECLARE_WRITE8_MEMBER( soundbank_w );
DECLARE_WRITE8_MEMBER( mcu_data_w );
DECLARE_READ16_MEMBER( genesis_vdp_r );
DECLARE_WRITE16_MEMBER( genesis_vdp_w );
// custom I/O
DECLARE_READ16_MEMBER( ddcrew_custom_io_r );
DECLARE_READ16_MEMBER( lghost_custom_io_r );
DECLARE_WRITE16_MEMBER( lghost_custom_io_w );
DECLARE_READ16_MEMBER( wwally_custom_io_r );
DECLARE_WRITE16_MEMBER( wwally_custom_io_w );
// video rendering
UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
// wrappers for legacy functions (to be removed)
template<read16_space_func _Legacy>
READ16_MEMBER( legacy_wrapper_r ) { return _Legacy(&space, offset, mem_mask); }
template<write16_space_func _Legacy>
WRITE16_MEMBER( legacy_wrapper ) { _Legacy(&space, offset, data, mem_mask); }
protected:
// timer IDs
enum
{
TID_INITIAL_BOOST
};
// rom board types
enum segas18_rom_board
{
ROM_BOARD_INVALID,
ROM_BOARD_171_SHADOW, // 171-???? -- used by shadow dancer
ROM_BOARD_171_5874, // 171-5874
ROM_BOARD_171_5987 // 171-5987
};
// device overrides
virtual void machine_reset();
virtual void video_start();
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
// internal helpers
void init_generic(segas18_rom_board rom_board);
void set_grayscale(bool enable);
void set_vdp_enable(bool enable);
void set_vdp_mixing(UINT8 mixing);
void draw_vdp(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, int priority);
// devices
required_device<sega_315_5195_mapper_device> m_mapper;
required_device<m68000_device> m_maincpu;
required_device<z80_device> m_soundcpu;
optional_device<i8751_device> m_mcu;
required_device<sega_genesis_vdp_device> m_vdp;
required_device<nvram_device> m_nvram;
// memory pointers
required_shared_ptr<UINT16> m_workram;
// configuration
segas18_rom_board m_romboard;
read16_delegate m_custom_io_r;
write16_delegate m_custom_io_w;
bool m_has_guns;
// internal state
bool m_grayscale_enable;
bool m_vdp_enable;
UINT8 m_vdp_mixing;
bitmap_ind16 m_temp_bitmap;
UINT8 m_mcu_data;
UINT8 m_misc_io_data[0x10];
// game-specific state
UINT8 m_wwally_last_x[3];
UINT8 m_wwally_last_y[3];
UINT8 m_lghost_value;
UINT8 m_lghost_select;
};
|