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
|
/***************************************************************************
Sega X-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/segaic16.h"
#include "video/segaic16.h"
#include "video/sega16sp.h"
// ======================> segaxbd_state
class segaxbd_state : public sega_16bit_common_base
{
public:
// construction/destruction
segaxbd_state(const machine_config &mconfig, device_type type, const char *tag)
: sega_16bit_common_base(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_subcpu(*this, "subcpu"),
m_soundcpu(*this, "soundcpu"),
m_soundcpu2(*this, "soundcpu2"),
m_mcu(*this, "mcu"),
m_cmptimer_1(*this, "cmptimer_main"),
m_sprites(*this, "sprites"),
m_gprider_hack(false),
m_road_priority(1),
m_scanline_timer(NULL),
m_timer_irq_state(0),
m_vblank_irq_state(0),
m_loffire_sync(NULL),
m_lastsurv_mux(0)
{
memset(m_adc_reverse, 0, sizeof(m_adc_reverse));
memset(m_iochip_regs, 0, sizeof(m_iochip_regs));
}
// compare/timer chip callbacks
void timer_ack_callback();
void sound_data_w(UINT8 data);
// YM2151 chip callbacks
DECLARE_WRITE_LINE_MEMBER( sound_cpu_irq );
// main CPU read/write handlers
DECLARE_READ16_MEMBER( adc_r );
DECLARE_WRITE16_MEMBER( adc_w );
UINT16 iochip_r(int which, int port, int inputval);
DECLARE_READ16_MEMBER( iochip_0_r );
DECLARE_WRITE16_MEMBER( iochip_0_w );
DECLARE_READ16_MEMBER( iochip_1_r );
DECLARE_WRITE16_MEMBER( iochip_1_w );
DECLARE_WRITE16_MEMBER( iocontrol_w );
// game-specific main CPU read/write handlers
DECLARE_WRITE16_MEMBER( loffire_sync0_w );
DECLARE_READ16_MEMBER( rascot_excs_r );
DECLARE_WRITE16_MEMBER( rascot_excs_w );
DECLARE_READ16_MEMBER( smgp_excs_r );
DECLARE_WRITE16_MEMBER( smgp_excs_w );
// sound Z80 CPU read/write handlers
DECLARE_READ8_MEMBER( sound_data_r );
// game-specific driver init
DECLARE_DRIVER_INIT(generic);
DECLARE_DRIVER_INIT(aburner2);
DECLARE_DRIVER_INIT(lastsurv);
DECLARE_DRIVER_INIT(loffire);
DECLARE_DRIVER_INIT(smgp);
DECLARE_DRIVER_INIT(rascot);
DECLARE_DRIVER_INIT(gprider);
// video updates
UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
protected:
// internal types
typedef delegate<UINT8 (UINT8)> ioread_delegate;
typedef delegate<void (UINT8)> iowrite_delegate;
// timer IDs
enum
{
TID_SCANLINE,
TID_IRQ2_GEN,
TID_SOUND_WRITE
};
// 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 update_main_irqs();
static void m68k_reset_callback(device_t *device);
// custom I/O
void generic_iochip0_lamps_w(UINT8 data);
UINT8 aburner2_iochip0_motor_r(UINT8 data);
void aburner2_iochip0_motor_w(UINT8 data);
UINT8 smgp_iochip0_motor_r(UINT8 data);
void smgp_iochip0_motor_w(UINT8 data);
UINT8 lastsurv_iochip1_port_r(UINT8 data);
void lastsurv_iochip0_muxer_w(UINT8 data);
// devices
required_device<m68000_device> m_maincpu;
required_device<m68000_device> m_subcpu;
required_device<z80_device> m_soundcpu;
optional_device<z80_device> m_soundcpu2;
optional_device<i8751_device> m_mcu;
required_device<sega_315_5250_compare_timer_device> m_cmptimer_1;
required_device<sega_xboard_sprite_device> m_sprites;
// configuration
bool m_gprider_hack;
bool m_adc_reverse[8];
ioread_delegate m_iochip_custom_io_r[2][8];
iowrite_delegate m_iochip_custom_io_w[2][8];
UINT8 m_road_priority;
// internal state
emu_timer * m_scanline_timer;
UINT8 m_timer_irq_state;
UINT8 m_vblank_irq_state;
UINT8 m_iochip_regs[2][8];
// game-specific state
UINT16 * m_loffire_sync;
UINT8 m_lastsurv_mux;
};
|