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
|
// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
RCA Cosmac VIP Expansion Interface emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************
CLOCK 1 A _MWR
_EF4 2 B TPA
_EF3 3 C MA0
XTAL 4 D MA1
_EF1 5 E MA2
N0 6 F MA3
N1 7 H MA4
N2 8 J MA5
SPOT 9 K MA6
_SYNC 10 L MA7
TPB 11 M BUS 0
SC0 12 N BUS 1
_INTERRUPT 13 P BUS 2
SC1 14 R BUS 3
_DMA-OUT 15 S BUS 4
Q 16 T BUS 5
_DMA-IN 17 U BUS 6
RUN 18 V BUS 7
MINH 19 W _MRD
_CDEF 20 X CS
+5 V 21 Y +5 V
GND 22 Z GND
**********************************************************************/
#pragma once
#ifndef __VIP_EXPANSION_SLOT__
#define __VIP_EXPANSION_SLOT__
#include "emu.h"
//**************************************************************************
// CONSTANTS
//**************************************************************************
#define VIP_EXPANSION_SLOT_TAG "exp"
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_VIP_EXPANSION_SLOT_ADD(_tag, _clock, _slot_intf, _def_slot) \
MCFG_DEVICE_ADD(_tag, VIP_EXPANSION_SLOT, _clock) \
MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false)
#define MCFG_VIP_EXPANSION_SLOT_INT_CALLBACK(_write) \
devcb = &vip_expansion_slot_device::set_int_wr_callback(*device, DEVCB_##_write);
#define MCFG_VIP_EXPANSION_SLOT_DMA_OUT_CALLBACK(_write) \
devcb = &vip_expansion_slot_device::set_dma_out_wr_callback(*device, DEVCB_##_write);
#define MCFG_VIP_EXPANSION_SLOT_DMA_IN_CALLBACK(_write) \
devcb = &vip_expansion_slot_device::set_dma_in_wr_callback(*device, DEVCB_##_write);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> vip_expansion_slot_device
class device_vip_expansion_card_interface;
class vip_expansion_slot_device : public device_t,
public device_slot_interface
{
public:
// construction/destruction
vip_expansion_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
template<class _Object> static devcb_base &set_int_wr_callback(device_t &device, _Object object) { return downcast<vip_expansion_slot_device &>(device).m_write_int.set_callback(object); }
template<class _Object> static devcb_base &set_dma_out_wr_callback(device_t &device, _Object object) { return downcast<vip_expansion_slot_device &>(device).m_write_dma_out.set_callback(object); }
template<class _Object> static devcb_base &set_dma_in_wr_callback(device_t &device, _Object object) { return downcast<vip_expansion_slot_device &>(device).m_write_dma_in.set_callback(object); }
// computer interface
UINT8 program_r(address_space &space, offs_t offset, int cs, int cdef, int *minh);
void program_w(address_space &space, offs_t offset, UINT8 data, int cdef, int *minh);
UINT8 io_r(address_space &space, offs_t offset);
void io_w(address_space &space, offs_t offset, UINT8 data);
UINT8 dma_r(address_space &space, offs_t offset);
void dma_w(address_space &space, offs_t offset, UINT8 data);
UINT32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
DECLARE_READ_LINE_MEMBER( ef1_r );
DECLARE_READ_LINE_MEMBER( ef3_r );
DECLARE_READ_LINE_MEMBER( ef4_r );
void sc_w(int data);
DECLARE_WRITE_LINE_MEMBER( q_w );
DECLARE_WRITE_LINE_MEMBER( run_w );
// cartridge interface
DECLARE_WRITE_LINE_MEMBER( interrupt_w ) { m_write_int(state); }
DECLARE_WRITE_LINE_MEMBER( dma_out_w ) { m_write_dma_out(state); }
DECLARE_WRITE_LINE_MEMBER( dma_in_w ) { m_write_dma_in(state); }
protected:
// device-level overrides
virtual void device_start();
devcb_write_line m_write_int;
devcb_write_line m_write_dma_out;
devcb_write_line m_write_dma_in;
device_vip_expansion_card_interface *m_card;
};
// ======================> device_vip_expansion_card_interface
class device_vip_expansion_card_interface : public device_slot_card_interface
{
friend class vip_expansion_slot_device;
public:
// construction/destruction
device_vip_expansion_card_interface(const machine_config &mconfig, device_t &device);
protected:
// runtime
virtual UINT8 vip_program_r(address_space &space, offs_t offset, int cs, int cdef, int *minh) { return 0xff; };
virtual void vip_program_w(address_space &space, offs_t offset, UINT8 data, int cdef, int *minh) { };
virtual UINT8 vip_io_r(address_space &space, offs_t offset) { return 0xff; };
virtual void vip_io_w(address_space &space, offs_t offset, UINT8 data) { };
virtual UINT8 vip_dma_r(address_space &space, offs_t offset) { return 0xff; };
virtual void vip_dma_w(address_space &space, offs_t offset, UINT8 data) { };
virtual UINT32 vip_screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) { return 0; }
virtual int vip_ef1_r() { return CLEAR_LINE; }
virtual int vip_ef3_r() { return CLEAR_LINE; }
virtual int vip_ef4_r() { return CLEAR_LINE; }
virtual void vip_sc_w(int data) { };
virtual void vip_q_w(int state) { };
virtual void vip_run_w(int state) { };
vip_expansion_slot_device *m_slot;
};
// device type definition
extern const device_type VIP_EXPANSION_SLOT;
SLOT_INTERFACE_EXTERN( vip_expansion_cards );
#endif
|