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
|
// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
MOS Technology 8722 Memory Management Unit emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************
_____ _____
Vdd 1 |* \_/ | 48 SENSE40
_RESET 2 | | 47 (MS3) 128/64
TA15 3 | | 46 _EXROM
TA14 4 | | 45 _GAME
TA13 5 | | 44 FSDIR
TA12 6 | | 43 _Z80EN
TA11 7 | | 42 D7
TA10 8 | | 41 D6
TA9 9 | | 40 D5
TA8 10 | | 39 D4
_CAS1 11 | | 38 D3
_CAS0 12 | MOS8722 | 37 D2
I/O SEL (MS2) 13 | | 36 D1
ROMBANK1 (MS1) 14 | | 35 D0
ROMBANK0 (MS0) 15 | | 34 Vss
AEC 16 | | 33 phi0
MUX 17 | | 32 R/_W
A0 18 | | 31 A15
A1 19 | | 30 A14
A2 20 | | 29 A13
A3 21 | | 28 A12
A4/A5 22 | | 27 A11
A6/A7 23 | | 26 A10
A8 24 |_____________| 25 A9
**********************************************************************/
#pragma once
#ifndef __MOS8722__
#define __MOS8722__
#include "emu.h"
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_MOS8722_ADD(_tag, _config) \
MCFG_DEVICE_ADD(_tag, MOS8722, 0) \
MCFG_DEVICE_CONFIG(_config)
#define MOS8722_INTERFACE(name) \
const mos8722_interface (name) =
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> mos8722_interface
struct mos8722_interface
{
devcb_write_line m_out_z80en_cb;
devcb_write_line m_out_fsdir_cb;
devcb_read_line m_in_game_cb;
devcb_read_line m_in_exrom_cb;
devcb_read_line m_in_sense40_cb;
};
// ======================> mos8722_device
class mos8722_device : public device_t,
public mos8722_interface
{
public:
// construction/destruction
mos8722_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
UINT8 read(offs_t offset, UINT8 data);
DECLARE_WRITE8_MEMBER( write );
DECLARE_READ_LINE_MEMBER( fsdir_r );
offs_t ta_r(offs_t offset, int aec, int *ms0, int *ms1, int *ms2, int *ms3, int *cas0, int *cas1);
protected:
// device-level overrides
virtual void device_config_complete();
virtual void device_start();
virtual void device_reset();
private:
devcb_resolved_write_line m_out_z80en_func;
devcb_resolved_write_line m_out_fsdir_func;
devcb_resolved_read_line m_in_game_func;
devcb_resolved_read_line m_in_exrom_func;
devcb_resolved_read_line m_in_sense40_func;
UINT8 m_reg[16];
UINT8 m_p0h_latch;
UINT8 m_p1h_latch;
};
// device type definition
extern const device_type MOS8722;
#endif
|